KR20040061906A - Uv curable powder coating composition and thereof - Google Patents
Uv curable powder coating composition and thereof Download PDFInfo
- Publication number
- KR20040061906A KR20040061906A KR1020020088208A KR20020088208A KR20040061906A KR 20040061906 A KR20040061906 A KR 20040061906A KR 1020020088208 A KR1020020088208 A KR 1020020088208A KR 20020088208 A KR20020088208 A KR 20020088208A KR 20040061906 A KR20040061906 A KR 20040061906A
- Authority
- KR
- South Korea
- Prior art keywords
- weight
- powder coating
- parts
- curing
- coating composition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000843 powder Substances 0.000 title claims abstract description 79
- 239000008199 coating composition Substances 0.000 title claims abstract description 27
- 238000000576 coating method Methods 0.000 claims abstract description 74
- 239000011248 coating agent Substances 0.000 claims abstract description 70
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 27
- 238000001723 curing Methods 0.000 claims description 43
- 239000000049 pigment Substances 0.000 claims description 20
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 14
- 238000003848 UV Light-Curing Methods 0.000 claims description 13
- 229920000728 polyester Polymers 0.000 claims description 13
- 239000004593 Epoxy Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- 229920001225 polyester resin Polymers 0.000 claims description 10
- 239000004645 polyester resin Substances 0.000 claims description 10
- 239000000654 additive Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 9
- 239000004606 Fillers/Extenders Substances 0.000 claims description 8
- 239000006224 matting agent Substances 0.000 claims description 7
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 4
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 claims description 4
- 125000003700 epoxy group Chemical group 0.000 claims description 2
- 239000000126 substance Substances 0.000 abstract description 22
- 239000003973 paint Substances 0.000 abstract description 20
- 238000002156 mixing Methods 0.000 abstract description 12
- 239000000463 material Substances 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000009500 colour coating Methods 0.000 abstract description 5
- 239000004033 plastic Substances 0.000 abstract description 5
- 229920003023 plastic Polymers 0.000 abstract description 5
- 239000002023 wood Substances 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 11
- 230000000704 physical effect Effects 0.000 description 9
- 239000000203 mixture Substances 0.000 description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 239000000155 melt Substances 0.000 description 6
- OUPZKGBUJRBPGC-UHFFFAOYSA-N 1,3,5-tris(oxiran-2-ylmethyl)-1,3,5-triazinane-2,4,6-trione Chemical compound O=C1N(CC2OC2)C(=O)N(CC2OC2)C(=O)N1CC1CO1 OUPZKGBUJRBPGC-UHFFFAOYSA-N 0.000 description 5
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical compound C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 description 5
- -1 Piti 810 Chemical class 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000009477 glass transition Effects 0.000 description 4
- 238000013035 low temperature curing Methods 0.000 description 4
- 230000000171 quenching effect Effects 0.000 description 4
- 230000009257 reactivity Effects 0.000 description 4
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 238000007348 radical reaction Methods 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 235000000126 Styrax benzoin Nutrition 0.000 description 2
- 244000028419 Styrax benzoin Species 0.000 description 2
- 235000008411 Sumatra benzointree Nutrition 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 229960002130 benzoin Drugs 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 2
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 description 2
- 238000002845 discoloration Methods 0.000 description 2
- IXFFLCQKZXIGMH-UHFFFAOYSA-N ethenoxyethene;ethyl carbamate Chemical compound C=COC=C.CCOC(N)=O IXFFLCQKZXIGMH-UHFFFAOYSA-N 0.000 description 2
- 235000019382 gum benzoic Nutrition 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000004848 polyfunctional curative Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 description 2
- 229920006337 unsaturated polyester resin Polymers 0.000 description 2
- OWMNWOXJAXJCJI-UHFFFAOYSA-N 2-(oxiran-2-ylmethoxymethyl)oxirane;phenol Chemical compound OC1=CC=CC=C1.OC1=CC=CC=C1.C1OC1COCC1CO1 OWMNWOXJAXJCJI-UHFFFAOYSA-N 0.000 description 1
- GJKGAPPUXSSCFI-UHFFFAOYSA-N 2-Hydroxy-4'-(2-hydroxyethoxy)-2-methylpropiophenone Chemical compound CC(C)(O)C(=O)C1=CC=C(OCCO)C=C1 GJKGAPPUXSSCFI-UHFFFAOYSA-N 0.000 description 1
- IISBACLAFKSPIT-UHFFFAOYSA-N Bisphenol A Natural products C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000501667 Etroplus Species 0.000 description 1
- 241000239366 Euphausiacea Species 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 241000981595 Zoysia japonica Species 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- MFIUDWFSVDFDDY-UHFFFAOYSA-M butyl(triphenyl)phosphanium;chloride Chemical compound [Cl-].C=1C=CC=CC=1[P+](C=1C=CC=CC=1)(CCCC)C1=CC=CC=C1 MFIUDWFSVDFDDY-UHFFFAOYSA-M 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- OIQPTROHQCGFEF-UHFFFAOYSA-L chembl1371409 Chemical compound [Na+].[Na+].OC1=CC=C2C=C(S([O-])(=O)=O)C=CC2=C1N=NC1=CC=C(S([O-])(=O)=O)C=C1 OIQPTROHQCGFEF-UHFFFAOYSA-L 0.000 description 1
- USJRLGNYCQWLPF-UHFFFAOYSA-N chlorophosphane Chemical compound ClP USJRLGNYCQWLPF-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- NJDNXYGOVLYJHP-UHFFFAOYSA-L disodium;2-(3-oxido-6-oxoxanthen-9-yl)benzoate Chemical compound [Na+].[Na+].[O-]C(=O)C1=CC=CC=C1C1=C2C=CC(=O)C=C2OC2=CC([O-])=CC=C21 NJDNXYGOVLYJHP-UHFFFAOYSA-L 0.000 description 1
- HNPDNOZNULJJDL-UHFFFAOYSA-N ethyl n-ethenylcarbamate Chemical compound CCOC(=O)NC=C HNPDNOZNULJJDL-UHFFFAOYSA-N 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 150000002460 imidazoles Chemical class 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical compound [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- AUONHKJOIZSQGR-UHFFFAOYSA-N oxophosphane Chemical compound P=O AUONHKJOIZSQGR-UHFFFAOYSA-N 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- XYFCBTPGUUZFHI-UHFFFAOYSA-O phosphonium Chemical compound [PH4+] XYFCBTPGUUZFHI-UHFFFAOYSA-O 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- JRMUNVKIHCOMHV-UHFFFAOYSA-M tetrabutylammonium bromide Chemical compound [Br-].CCCC[N+](CCCC)(CCCC)CCCC JRMUNVKIHCOMHV-UHFFFAOYSA-M 0.000 description 1
- USFPINLPPFWTJW-UHFFFAOYSA-N tetraphenylphosphonium Chemical compound C1=CC=CC=C1[P+](C=1C=CC=CC=1)(C=1C=CC=CC=1)C1=CC=CC=C1 USFPINLPPFWTJW-UHFFFAOYSA-N 0.000 description 1
- 238000001029 thermal curing Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 239000012463 white pigment Substances 0.000 description 1
- 239000001052 yellow pigment Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/03—Powdery paints
- C09D5/032—Powdery paints characterised by a special effect of the produced film, e.g. wrinkle, pearlescence, matt finish
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
- C09D163/10—Epoxy resins modified by unsaturated compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paints Or Removers (AREA)
Abstract
본 발명은 자외선 경화형 분체도료 조성물에 관한 것으로서, 더욱 상세하게는 속경화가 가능한 열경화형 분체도료와 자외선 경화형 분체도료를 각각 제조하여 적절한 비율로 혼합한 분체도료 조성물을 아이알(IR) 조사기와 유브이(UV) 조사기에서 차례로 경화시키는 것으로, 상기 경화되는 속도의 차이로 광택조절이 용이하여 반광형의 도료 제조가 가능하고, 외관이 우수할 뿐만 아니라 칼라코팅 및 두꺼운 도막에서 부착성, 유연성, 굴곡성, 충격성 등의 기계적 물성 및 내약품성이 우수하여 목재, 엠디에프(MDF), 플라스틱 소재와 각종 철구조물 가전제품 케이스 및 사무 기기류 등의 산업용품에 널리 이용 가능한 반광용 자외선 경화형 분체도료 조성물에 관한 것이다.The present invention relates to an ultraviolet curable powder coating composition, and more particularly, a thermosetting powder coating and an ultraviolet curing powder coating which can be quickly cured, respectively, and a powder coating composition obtained by mixing them in an appropriate ratio. UV) by curing with an irradiator in turn, it is easy to control the gloss by the difference in the curing rate, it is possible to manufacture a semi-glossy paint, not only excellent appearance, but also adhesion, flexibility, flexibility, impact properties in color coating and thick coating film The present invention relates to a semi-luminescent UV curable powder coating composition which is excellent in mechanical properties and chemical resistance such as wood, MDF, plastic material and various steel structure home appliance cases and office equipment.
Description
본 발명은 자외선 경화형 분체도료 조성물에 관한 것으로서, 더욱 상세하게는 속경화가 가능한 열경화형 분체도료와 자외선 경화형 분체도료를 각각 제조하여 적절한 비율로 혼합한 분체도료 조성물을 아이알(IR) 조사기와 유브이(UV) 조사기에서 차례로 경화시키는 것으로, 상기 경화되는 속도의 차이로 광택조절이 용이하여 반광형의 도료 제조가 가능하고, 외관이 우수할 뿐만 아니라 칼라코팅 및 두꺼운 도막에서 부착성, 유연성, 굴곡성, 충격성 등의 기계적 물성 및 내약품성이 우수하여 목재, 엠디에프(MDF), 플라스틱 소재와 각종 철구조물 가전제품 케이스 및 사무 기기류 등의 산업용품에 널리 이용 가능한 반광용 자외선 경화형 분체도료 조성물에 관한 것이다.The present invention relates to an ultraviolet curable powder coating composition, and more particularly, a thermosetting powder coating and an ultraviolet curing powder coating which can be quickly cured, respectively, and a powder coating composition obtained by mixing them in an appropriate ratio. UV) by curing with an irradiator in turn, it is easy to control the gloss by the difference in the curing rate, it is possible to manufacture a semi-glossy paint, not only excellent appearance, but also adhesion, flexibility, flexibility, impact properties in color coating and thick coating film The present invention relates to a semi-luminescent UV curable powder coating composition which is excellent in mechanical properties and chemical resistance such as wood, MDF, plastic material and various steel structure home appliance cases and office equipment.
현재 사용되고 있는 도료 중에서 유기 용제를 전혀 포함하지 않는 100 % 고형분인 분체도료는 용제형 도료에 비해 뛰어난 도막물성과 1회 도장으로 두꺼운 도막(이하 후도막)화가 가능하고 공해성 폐기물의 발생이 거의 없어 폐수처리 시설이필요 없고, 또 용제를 사용치 않으므로 청소가 용이하여 청결한 환경을 유지할 수 있다는 많은 장점으로 인해 지난 20년간 약 10 % 이상의 높은 성장을 지속하여 왔다.Powder coatings, which are 100% solids, which do not contain any organic solvents, are now used as paints with excellent coating properties compared to solvent-based paints, and can be thickened (hereinafter referred to as thick films) with little pollution. Since there is no need for waste water treatment facilities and no solvents, many of the advantages of easy cleaning and maintaining a clean environment have been growing at about 10% over the past 20 years.
이와 같은 장점에도 불구하고 분체도료가 선결해야 할 몇가지 문제가 있는데, 그중 하나가 경화온도가 높다는 것이다. 일반적으로 기존의 분체도료 제품들은 160 ∼ 220 ℃의 고온에서 경화되므로 150 ℃ 이하에서 경화되는 용제 도료에 비해 높은 에너지 비용이 소요되고, 작업자의 환경이 열악해질 뿐만 아니라 열에 민감한 나무, 플라스틱 소재 등에는 적용이 곤란한 문제가 있다.Despite these advantages, there are some problems that powder coatings have to pre-empt, one of which is the high curing temperature. In general, conventional powder coating products are cured at a high temperature of 160 ~ 220 ℃ high energy costs compared to solvent coatings that cure below 150 ℃, not only worsen the environment of the operator but also heat-sensitive wood, plastic materials, etc. There is a problem that application is difficult.
따라서 상기와 같은 문제점을 가진 기존의 열경화 방식의 분체도료의 대안으로 자외선 경화 방식으로 제조된 자외선 경화형 분체도료의 관심이 고조되고 있다. Therefore, as an alternative to the conventional thermosetting powder coating having the above problems, the interest of the ultraviolet curing powder coating prepared by the ultraviolet curing method is increasing.
상기한 자외선 경화형 분체도료는 저온 경화가 가능하기 때문에 저온 경화가 요구되는 하는 목재, 엠디에프(MDF), 플라스틱 소재와 각종 철 구조물의 가전제품 케이스 및 사무 기기류 등의 각종 소재에 폭넓게 사용될 수 있다.Since the UV-curable powder coating is capable of low temperature curing, it can be widely used in various materials such as wood, MDF, plastic materials and various cases such as home appliance cases and office equipment that require low temperature curing.
그러나 일반적인 자외선 경화형 분체 도료의 경우 그 경화방식이 가진 특성으로 인한 광택조절의 문제로 반광 및 무광도료를 제조하는데 어려움이 있다. 즉 자외선 경화형 분체 도료는 자외선에 의해 순간적인 라디칼 반응으로 경화되는 시스템이므로 도료의 광택 조절이 어렵다는 것이다.However, in the case of general UV-curable powder coating, there is a difficulty in manufacturing semi-gloss and matte coatings due to the problem of gloss control due to the characteristics of the curing method. In other words, UV-curable powder coating is a system that is cured by an instant radical reaction by ultraviolet light, it is difficult to control the gloss of the paint.
일반적인 분체도료의 소광방법으로는 첫째 소광제를 도입하는 방법 널리 사용되고 있는데, 상기의 경우 도료가 용융 상태를 장시간 유지하여야만 소광효과를 기대할 수 있으나 상기의 자외선 경화 시스템과 같이 순간적인 경화반응에서는 소기의 소광효과를 기대하기 어렵다.As a general method of quenching powder coating, the first method of introducing a quenching agent is widely used. In this case, the quenching effect can be expected only when the paint is kept in a molten state for a long time. It is difficult to expect the matting effect.
둘째로 반응성 및 점도 차이가 큰 2 종의 도료를 드라이 블랜딩하는 방법 또는 반응성이 현격히 차이가 나는 2 종의 경화제를 혼용하는 방법이 있는바, 이러한 모든 방법은 분체도료 조성물내에서 반응속도의 차이를 부여하여 표면에 요철구조를 형성함으로서 광택을 저하(조절)하게 된다. 그러나 자외선 경화형 분체도료에 있어서는 광개시제가 라디칼을 형성하여 수초안에 경화반응이 완결되므로, 상기한 경화제 및 점도차이에 의한 소광이 사실상 불가능하다.Secondly, there is a method of dry blending two kinds of paints having a large difference in reactivity and viscosity, or a mixture of two kinds of hardeners having remarkably different reactivity, and all of these methods change the reaction rate in the powder coating composition. By providing an uneven structure on the surface, gloss is reduced (adjusted). However, in the ultraviolet curable powder coating, since the photoinitiator forms radicals and the curing reaction is completed within a few seconds, quenching by the above-described curing agent and viscosity difference is virtually impossible.
상기와 같이 종래의 자외선 경화형 분체도료에서 단점으로 지적되고 있는 광택조절의 문제점을 해결하기 위하여 연구 노력한 결과, 본 발명자들은 속경화가 가능한 열경화형 분체도료와 자외선 경화형 분체도료를 적절한 비로 혼합하여 분체도료 조성물을 제조하고, 이를 아이알 조사기로 용융시켜 열경화 시킨 후 유브이 조사기에서 라디칼 반응에 의해 자외선 경화를 시키는 속도차를 이용하여, 광택조절이 가능하게 되었다.As a result of the research efforts to solve the problems of the gloss control, which is pointed out as a disadvantage in the conventional UV-curable powder coating as described above, the present inventors mixed the powder coating by mixing a thermosetting powder coating and UV-curable powder coating capable of rapid curing in an appropriate ratio The composition was prepared, melted by an IR irradiator, and thermally cured, and then gloss control was possible by using a rate difference of UV curing by radical reaction in a UV irradiator.
또한 혼합된 상기 경화과정에서 유브이가 미치지 못하는 부분은 열경화형 분체도료에 의한 경화가 일어나므로, 유브이에 의해서만 경화되는 종래의 자외선 경화형 분체도료에 비하여, 후도막에서의 물성이 크게 개선된다는 사실을 알게되어 본 발명을 완성하게 되었다.In addition, since the part that UV is not mixed in the mixed curing process is hardened by the thermosetting powder coating, it is found that physical properties in the thick film are significantly improved as compared with the conventional UV curing powder coating cured only by UV. Thus, the present invention has been completed.
따라서 본 발명은 종래의 자외선 경화형 분체도료와는 달리 자외선 경화형분체도료에 열경화형 분체 도료를 일부 혼합하여 저온 경화가 가능하고 광택조절이 용이하여 외관이 우수할 뿐만 아니라 특정 칼라코팅 및 후도막에서 부착성, 유연성, 굴곡성, 충격성 등의 기계적 물성 및 내약품성이 우수한 자외선 경화형 반광 분체도료 조성물 제공하는데 그 목적이 있다.Therefore, the present invention, unlike the conventional UV-curable powder coating, by mixing a part of the thermosetting powder coating with the UV-curable powder coating, it is possible to cure at low temperature and easy to control the gloss, and the appearance is excellent as well as attached in a specific color coating and thick film. It is an object of the present invention to provide an ultraviolet curable semi-light powder coating composition having excellent mechanical properties such as properties, flexibility, flexibility, impact resistance, and chemical resistance.
본 발명은 자외선 경화형 분체도료 조성물에 있어서,The present invention is a UV curable powder coating composition,
열경화형 분체 도료와 자외선 경화형 분체 도료가 1 : 9 ∼ 3 : 7 의 중량비로 혼합된 자외선 경화형 분체도료 조성물을 그 특징으로 한다.It is characterized by the ultraviolet curable powder coating composition which the thermosetting powder coating material and the ultraviolet curable powder coating material mixed in the weight ratio of 1: 9-3: 7.
또한 상기 제조된 분체도료 조성물은 도장된 후 130 ∼ 150 ℃ × 5 ∼ 10분 동안 아이알(IR) 조사기를 이용하여 열경화한 후, 유브이(UV) 경화기에서 1500 mJ/㎠의 조사량을 받는 자외선 경화의 조건에서 광택도가 30 ∼ 50 %인 특성을 갖는 반광형인 것을 특징으로 한다.In addition, the powder coating composition thus prepared is thermally cured using an IR (IR) irradiator for 130 to 150 ℃ × 5 to 10 minutes after being coated, and then subjected to UV curing at 1500 mJ / cm 2 in a UV curing machine. It is characterized in that the semi-gloss type having a characteristic of glossiness of 30 to 50% under the conditions of.
이와 같은 본 발명을 상세히 설명하면 다음과 같다.The present invention will be described in detail as follows.
본 발명은 자외선 경화형 분체 도료와 속경화가 가능한 열경화형 분체도료를 일정 중량비로 혼합한 분체 도료 조성물로서, 이를 아이알 조사기 통과시켜 열경화 도료가 반응하여 도막을 형성하고 그 후에 유브이 조사기에서 자외선 경화 도료가 라디칼 반응되는 반응속도 차이를 이용하여 제조된 반광용 자외선 경화형 분체 도료는 광택 조절이 용이하여 외관이 우수할 뿐만 아니라 특정칼라코팅 및 후도막에서 부착성, 유연성, 굴곡성, 충격성 등의 기계적 물성 및 내약품성이 우수한 것이다.The present invention relates to a powder coating composition comprising a UV curable powder coating and a thermosetting powder coating capable of rapid curing in a predetermined weight ratio, which is passed through an IAL irradiator to react with a thermosetting coating to form a coating film, and then a UV curing coating in a UV irradiation machine. The semi-luminescent UV curable powder paint prepared by using the reaction rate difference of the radical reaction is not only excellent in gloss control, but also excellent in appearance, and has mechanical properties such as adhesion, flexibility, flexibility, impact properties, and the like in specific color coatings and thick films. It is excellent in chemical resistance.
본 발명에서 사용한 속경화가 가능한 열경화형 분체도료는 카르복실기를 가진 폴리에스테르계와 에폭시계 및 폴리에스테르-에폭시 하이브리드계 중에서 선택된 1종 이상이 사용될 수 있다.The fast-curable thermosetting powder coating used in the present invention may be used at least one selected from the group consisting of a polyester having a carboxyl group, an epoxy group, and a polyester-epoxy hybrid system.
상기 카르복실기를 가진 폴리에스테르계는 카르복실 폴리에스테르 수지 100 중량부에 대하여, 당량이 70 ∼ 120인 글리시딜기를 가지는 경화제 6 ∼ 9 중량부, 경화촉매 0.4 ∼ 1 중량부, 소광제 3 ∼ 7 중량부, 유색안료 0 ∼ 45 중량부, 체질안료 0 ∼ 10 중량부 및 통상의 첨가제 1 ∼ 2 중량부로 구성된 것이 사용될 수 있다.The polyester system having the carboxyl group has 6 to 9 parts by weight of a curing agent having a glycidyl group having an equivalent of 70 to 120, a curing catalyst of 0.4 to 1 part by weight, and a matting agent 3 to 7 with respect to 100 parts by weight of the carboxyl polyester resin. A part composed of parts by weight, 0 to 45 parts by weight of colored pigment, 0 to 10 parts by weight of extender pigment and 1 to 2 parts by weight of conventional additives may be used.
상기 카복실기를 가진 폴리에스테르 수지는 산값이 30 ∼ 60 mg KOH/g 이고, 용융점도는 20 ∼ 50 poise(200 ℃, I.C.I 점도계), 유리전이온도는 50 ∼ 70 ℃(DSC), 연화점은 100 ∼ 130 ℃(메틀러 에프피-83) 중량평균분자량은 6,000 ∼ 10,000인 것이 사용될 수 있다. 상기 조건을 만족하는 카르복실 폴리에스테르 수지는 예를 들면 시중에 유통되는 상품명 올레스터 C.N.F 33114, 33121, 36520, 0001, 0008, 33176 (금강고려화학), 우라락피-7300, 3600, 2400, 6600, 7304 (DSM사), 크릴코트-3301, 320, 630 및 632 (UCB사)등이 사용 될 수 있다.The polyester resin having a carboxyl group has an acid value of 30 to 60 mg KOH / g, a melt viscosity of 20 to 50 poise (200 ° C, ICI viscometer), a glass transition temperature of 50 to 70 ° C (DSC), and a softening point of 100 to 60 mg KOH / g. 130 ℃ (Mettler F-83) weight average molecular weight of 6,000 to 10,000 may be used. Carboxy polyester resins satisfying the above conditions are, for example, commercially available products such as Olester CNF 33114, 33121, 36520, 0001, 0008, 33176 (Keumgang Korea Chemical), Uralak-7300, 3600, 2400, 6600, 7304 (DSM), Krillcoat-3301, 320, 630 and 632 (UCB) and the like can be used.
상기 글리시딜기를 가진 경화제로는 당량이 70 ∼ 120이고 관능기가 2 ∼ 4개인 것으로서, 예를 들면 트리글시딜 이소시아 뉴레이트(예; 피티 810, 시바가이기사) 및 디글리시딜 텔레프탈레이트와 트리그리시딜기가 8/2비율로 혼합된 경화제(예; 피티 910, 시바가이기)를 사용할 수 있다.The curing agent having a glycidyl group is equivalent to 70 to 120 and 2 to 4 functional groups, for example, triglycidyl isocyanate (e.g., Piti 810, Ciba-Geigy Co.) and diglycidyl tele Curing agents (eg, Piti 910, Ciba-Gaigi) in which phthalate and triglycidyl groups are mixed in an 8/2 ratio may be used.
또한 경화촉진제로는 저온에서의 반응성이 우수하고 내열성이 우수한 것으로 예를 들면 트리페닐포스핀, 벤질드리페닐포스포늄크로라이드, 테트라부틸암모늄브로마이드, 부틸트리페닐포스포늄 크로라이드, 에틸드리페닐포스포늄 및 테트라페닐 포스포늄 크로라이드와 같은 4급 암모늄 또는 기타 이마다졸류 등을 사용할 수 있다. 경화촉진제가 0.4 중량부 미만에서는 경화부족으로 물성의 저하가 오며, 1 중량부를 초과할 경우에는 저장중 경시변화로 인하여 물성저하와 레벨링이 급격히 저하된다.In addition, the curing accelerator has excellent reactivity at low temperatures and excellent heat resistance. For example, triphenylphosphine, benzyldriphenyl phosphonium chloride, tetrabutylammonium bromide, butyltriphenylphosphonium chloride, ethyldriphenyl phosphonium And quaternary ammonium such as tetraphenyl phosphonium chromide or other imidazoles. If the curing accelerator is less than 0.4 part by weight, the physical property is lowered due to the lack of curing. If the curing accelerator is more than 1 part by weight, the physical property decreases and the leveling rapidly decreases due to the change over time during storage.
상기 유색안료는 통상의 안료가 사용되며, 백색으로 티타늄 디옥사이드 계통의 안료를 사용할 수 있는 바 예를 들면 R902, R906(듀퐁사), CR80, CR80, CR95(이시하라사), 흑색으로 카본 블랙계통의 하이블랙 50엘(엘지), 카본블랙 MA 100(미쯔비시사), 카본블랙 S 160, FW 200(데구사), 카본 1400퍼얼(카보트사), 적색으로 크롬프탈레드, 호스타펌레드이3비, 퍼머넌트레트이3비(훽스트사), 몰리브데이트 스카릿 레드(삼보화학), 황색으로 무기계 베이포록스 420(바이엘사) 크롬계 크롬엘로우 8지, 400지, 일가진 옐로우 3알엘티, 일가진 옐로우 2지엘티, 이마이크로리스 엘로우 2지티(시바가이기사) 청색으로 프달로시아닌블루(대한스위스사), 울트라바린블루(누비오라사), 녹색으로 프타로시안그린(대한스위스사), 크롬그린 지에치(삼보화학) 등의 시판제품을 사용할 수 있다.The pigment is a conventional pigment is used, the titanium dioxide pigment can be used as a white bar, for example, R902, R906 (Dupont), CR80, CR80, CR95 (Ishihara), black of carbon black system High black 50L (LG), carbon black MA 100 (Mitsubishi Corporation), carbon black S 160, FW 200 (Degusa), carbon 1400 pearl (Cabot company), red chrome phthaled red, host firm red , Permanent Trei 3 B (Hexst), Molybdate Scarlet Red (Sambo Chemical), Yellow Inorganic Vaporox 420 (Bayer) Chrome-based Chrome Yellow 8, 400, One yellow 3 Alti, Sun Yellow 2GlTI, Imicroless Yellow 2GTI (Shiba Gagisa) Blue, Pdallocyanine Blue (Korea), Ultrabarin Blue (Nubiorasa), Green Pthalocyan Green (Korea) Commercially available products, such as chrome green ziech (sambo chemical), can be used.
또한 체질 안료로는 통상적으로 사용되는 알루미늄하이드록사이드계통, 실리카 계통(미누질 5, 15 ㎛), 탈크, 바륨설페이트 계통 등을 사용할 수 있다.In addition, as the extender pigment, an aluminum hydroxide system, a silica system (minusil 5, 15 μm), a talc, a barium sulfate system, etc. which are commonly used may be used.
또한 소광제로는 폴레 에칠렌 계통 왁스로 융융점도가 110 ∼ 130 ℃(디.에스.씨.사) 평균입도가 4 ∼ 6 마이크론을 만족하는 것으로 예를 들면 세라플로 950, 920(비와이케이사), 폴리프로필렌 계통 왁스로 엠피아이 400, 600(마이크로 파우더사)등을 사용할 수 있다.In addition, the matting agent is a poly ethylene-based wax with a melting viscosity of 110 to 130 ° C (D.S.C.) and satisfies an average particle size of 4 to 6 microns, for example, Ceraflo 950, 920 (Buykei Co.), As the polypropylene wax, MPIA 400, 600 (micro powder) etc. can be used.
또한 상기 에폭시계 열경화형 분체 도료는 에폭시 수지 100 중량부에 대하여, 경화제 3 ∼ 20 중량부, 경화촉매 0.4 ∼ 1 중량부, 소광제 3 ∼ 7 중량부, 유색안료 0 ∼ 45 중량부, 체질안료 0 ∼ 10 중량부 및 통상의 첨가제 1 ∼ 2 중량부가 함유된 것이 사용될 수 있다. 이때 사용되는 에폭시 수지는 당량이 650 ∼ 1000 이고 용융점도가 5 ∼ 15 poise(175 ℃, I.C.I 점도계)인 것이 사용되며, 예를 들면 올레포스 씨.엔.이 80208, 80303, 80408(금강고려화학), 와이.디 013케이, 014케이(국도화학)등을 사용할 수 있다.In addition, the said epoxy type thermosetting powder coating material is 3-20 weight part of hardening | curing agents, 0.4-1 weight part of hardening catalysts, 3-7 weight part of quenchers, 0-45 weight part of pigmented pigments, and sieving pigments with respect to 100 weight part of epoxy resins. Those containing 0 to 10 parts by weight and 1 to 2 parts by weight of conventional additives can be used. At this time, the epoxy resin used is equivalent to 650 to 1000 and the melt viscosity is 5 to 15 poise (175 ℃, ICI viscometer), for example, Olefoss N.E 80208, 80303, 80408 (Kumkang Korea Chemical) ), Y.D 013K, 014K (Kukdo Chemical), etc. can be used.
상기 에폭시계 경화제로는 통상적으로 사용되는 것으로, 예를 들면 디시안디아마이드드계로 카다미드 783, 780, 1415, 710, 1432, 779(토마스스완사), 디.이,에취 41, 44(다우사), 페놀릭하드너로 올레폭스 씨.엔.엔 00105, 00143(금강고려화학), 케이디 401, 404, 405, 410, 420(국도화학), 디.이.에취 82, 84(다우사)등을 사용할 수 있다. 기타 조성물은 폴레에스테르계와 동일하다.As the epoxy-based curing agent is commonly used, for example, dicyandiamide-based cardamide 783, 780, 1415, 710, 1432, 779 (Thomas Swan Corporation), D.E, 41, 44 (Dausa) In phenolic hardener, it is Ollefox C.N.00105, 00143 (Kumgang Goryeo Chemical), Cady 401, 404, 405, 410, 420 (Kukdo Chemical), D.E. H. 82, 84 (Dausa) Can be used. The other composition is the same as polyester system.
또 다른 열경화 분체도료 성분으로써, 카르복실기를 가진 폴리에스테르-에폭시 하이브리드계 열경화 도료는 카르복실 폴리에스테르 수지 40 ∼ 60 중량%, 에폭시 수지 경화제 40 ∼ 60 중량%를 주성분 수지로 하고 상기 주성분 수지 100 중량부에 대해 소광제 3 ∼ 7 중량부, 경화촉진제 0.4 ~ 1 중량부, 유색안료 0 ∼ 45 중량부, 체질안료 0 ∼ 10 중량부 및 통상의 첨가제 1 ∼ 2 중량부를 포함하는 것이 사용될 수 있다.As another thermosetting powder coating component, the polyester-epoxy hybrid type thermosetting paint having a carboxyl group is composed of 40 to 60% by weight of a carboxyl polyester resin and 40 to 60% by weight of an epoxy resin curing agent as the main component resin. It can be used to include 3 to 7 parts by weight of matting agent, 0.4 to 1 part by weight of curing accelerator, 0 to 45 parts by weight of colored pigment, 0 to 10 parts by weight of extender pigment and 1 to 2 parts by weight of conventional additives. .
상기 카복실 폴리에스테르 수지는, 산값이 30 ∼ 60 mg KOH/g 이고 용융점도는 20 ∼ 40 poise(200 ℃, I.C.I 점도계), 유리전이온도는 50 ∼ 70 ℃(DSC), 중량평균분자량은 6,000 ∼ 9,000, 연화점은 100 ∼ 120 ℃(메틀러 에프피-83)가 되는 것을 사용할 수 있다. 이러한 조건을 만족하는 수지는 예를 들면 올레스터 C.N.F 36575, 32128, 36449, 36568, 00129, 36582(금강고려화학), 우라락피-3660, 2612, 5170, 5061(DSM사), 크릴코드 360, 2625, 7402, 314 및 312(UCB사)등의 상품이 사용될 수 있다.The carboxyl polyester resin has an acid value of 30 to 60 mg KOH / g, a melt viscosity of 20 to 40 poise (200 ° C, ICI viscometer), a glass transition temperature of 50 to 70 ° C (DSC), and a weight average molecular weight of 6,000 to 9,000 and a softening point can use what is 100-120 degreeC (Mettler F-83). Resin that satisfies these conditions is, for example, Olester CNF 36575, 32128, 36449, 36568, 00129, 36582 (Keumgang Goryeo Chemical), Uralapi-3660, 2612, 5170, 5061 (DSM), Krill cord 360, 2625 , 7402, 314 and 312 (UCB) may be used.
상기 경화제로는 디글리시딜 에테르 비스페놀 에이형 에폭시로 당량이 650 ∼ 1000이고 용융점도가 5 ∼ 15 poise(175 ℃ I.C.I 점도계)인 것을 사용될 수 있으며, 예를 들면 올레폭스 C.N.E 80208, 80303, 80408(금강고려화학), 와이디 013케이, 014케이(국도화학)등이 있다.The curing agent may be a diglycidyl ether bisphenol A type epoxy equivalent of 650 to 1000 and a melt viscosity of 5 to 15 poise (175 ℃ ICI viscometer), for example, Olepox CNE 80208, 80303, 80408 ( Kumgang Korea Chemical), WY 013K, 014K (Kukdo Chemical).
이외의 다른 조성물은 상기 폴리에스테르계 도료와 동일하다. 폴리에스테르계 및 하이브리계의 폴리에스테르의 산값이 30 미만에서는 반응성이 떨어져 물성저하가 오며, 60 초과하면 빠른 반응으로 인하여 텍스쳐 형태의 깊은 요철구조를 가진 외관불량과 이로 인한 물성저하가 온다.Other compositions other than this are the same as the said polyester paint. When the acid value of the polyester-based and hybrid-based polyester is less than 30, the reactivity decreases, thereby deteriorating the physical properties. When the acid value of the polyester-based and hybrid-based polyesters exceeds 60, the poor reaction results in a poor appearance and a deterioration in physical properties due to the deep uneven texture.
상기 폴리에스테르계, 하이브리드계, 에폭시계 수지들의 용융점도가 제시한 범위 미만에서는 저장성 불량이 나타나고, 초과 범위에서는 절적한 멜팅 부족으로 인한 외관불량과 소광제로 사용하는 왁스가 도료 상층부로 이미그레션 되지 못함으로 목적하는 바의 소광효과의 얻을 수 없는 것이다.When the melt viscosity of the polyester-based, hybrid-based and epoxy-based resins is less than the range indicated, poor storage properties appear, and in the above range, the appearance defects due to the lack of proper melting and the wax used as the matting agent are not imaged to the upper layer of the paint. Inability to achieve the desired matting effect.
한편, 본 발명의 자외선 경화형 분체도료는 불포화 수지 100 중량부에 대하여, 광개시제 0.5 ∼ 2 중량부, 유색안료 0 ∼ 30 중량부, 체질안료 0 ∼ 10 중량부 및 통상의 첨가제 1 ∼ 2 중량부 함유된 것이 사용된다. 상기 불포화 수지는 용융점도는 20 ∼ 60 poise(175 ℃, I.C.I 점도계), 유리전이온도는 40 ∼ 60 ℃ (디에스시)인 불포화 폴리에스테르 수지, 비닐이서 우레탄 수지가 사용될 수 있으며, 예를 들면 불포화 폴리에스테르 수지는 유베코드 2000, 2200, 2200, 2300, 3000(유시비사), 우라크로스 4901이고 비닐 에테르 우레탄 수지로는 유베코트 9010(유시비사), 우라크로스 피3898 및 피3307 등을 사용할 수 있다.On the other hand, the ultraviolet curable powder coating of the present invention contains 0.5 to 2 parts by weight of photoinitiator, 0 to 30 parts by weight of colored pigment, 0 to 10 parts by weight of extender pigment, and 1 to 2 parts by weight of conventional additives based on 100 parts by weight of unsaturated resin. Is used. The unsaturated resin may be an unsaturated polyester resin having a melt viscosity of 20 to 60 poise (175 ° C., an ICI viscometer), a glass transition temperature of 40 to 60 ° C. (diesh), and a vinyl urethane resin. The polyester resins are UBECODE 2000, 2200, 2200, 2300, 3000 (Yubissa), uracross 4901, and as the vinyl ether urethane resins, UBECOAT 9010 (YUSIVISA), uracross P3898 and P3307 can be used. .
또한 상기 광개시제는 알파 하이드록시 케톤 계통으로 일가큐어 184, 500, 1000, 1173및 2959 등이 사용되고 비스 아크릴 포스핀옥사이드 계통으로 일가큐어 819, 1700, 1800 및 1850등이 사용될 수 있다. 상기 광개시제가 2 중량부를 초과할 경우 도료의 유리전이온도가 저하되어 저장성이 급격히 저하되며, 0.5 중량부 미만에서는 경화불량이 발생한다.In addition, the photoinitiator is an alpha hydroxy ketone system, such as monocure 184, 500, 1000, 1173 and 2959, and a bicure acrylic such as 819, 1700, 1800 and 1850 may be used as a bisacryl phosphine oxide. When the photoinitiator exceeds 2 parts by weight, the glass transition temperature of the paint is lowered, and the storage property is drastically lowered, and less than 0.5 parts by weight of curing failure occurs.
그 밖의 다른 조성물은 열경화 도료 조성물과 동일하게 사용한다.Other compositions are used in the same manner as the thermosetting coating composition.
상기 열경화 도료에서 사용된 통상의 첨가제는 예컨데 흐름성 향상제, 핀홀 방지제 등이 사용될 수 있다.As a conventional additive used in the thermosetting paint, for example, a flow improver, a pinhole inhibitor, or the like may be used.
한편 본 발명에 따른 자외선 경화 분체도료 조성물의 제조과정은 다음과 같이 3 단계 과정으로 이루어진다.On the other hand, the manufacturing process of the ultraviolet curing powder coating composition according to the present invention consists of a three-step process as follows.
1 단계 : 폴리에스테르계, 하이브리드계 및 에폭시계 중에서 선택된 조성과함량으로 프리믹싱 탱크에 삽입하고 프리믹싱 시킨 후 분산기에서 50 ∼ 100 ℃ 로 용융 분산시켜 칩으로 제조한다. 이 칩은 다시 고속믹서로 분쇄하고 100 ∼ 200 매시로 필터하면 도료제조가 완료된다. 상기 제조된 열경화 도료는 상기 폴리에스테르계와 하이브리드계 및 에폭시계 타입에 관계없이 60 ∼ 80 %의 광택을 가져야하며, 50 ∼ 80초(130 ℃)의 겔(gel) 타임을 가져야 한다. 상기 겔 타임 범위가 50초 미만인 경우는 빠른 경화로 인하여 우수한 외관을 가질 수 없고 80초를 초과 할 경우 물성이 불량하게 되는데, 특히 충격성의 저하가 온다.Step 1: Insert into a premixing tank with a composition and content selected from polyester, hybrid, and epoxy, premix and melt disperse at 50 to 100 ° C. in a disperser to prepare chips. The chip is pulverized again with a high speed mixer and filtered at 100 to 200 mesh to complete the paint production. The prepared thermosetting paint should have a gloss of 60 to 80%, and have a gel time of 50 to 80 seconds (130 ° C.) regardless of the polyester-based, hybrid-based and epoxy-based types. If the gel time range is less than 50 seconds can not have a good appearance due to rapid curing and if the physical property exceeds 80 seconds is poor, particularly impact resistance comes.
2 단계 : 자외선 경화 도료도 상기한 해당 조성 성분을 이용하여 상기 열경화 도료와 같은 방법으로 제조한다.Step 2: An ultraviolet curable paint is also produced by the same method as the thermosetting paint using the above-mentioned compositional components.
3 단계 : 상기에서 제조된 열경화 도료와 자외선 경화를 1 : 9 ∼ 3 : 7 의 중량비로 텀블러 믹서에서 충분히 혼합하여 본 발명에 따른 자외선 경화 분체 도료를 제조한다.Step 3: The above-mentioned thermosetting paint and ultraviolet curing are sufficiently mixed in a tumbler mixer in a weight ratio of 1: 9 to 3: 7 to prepare an ultraviolet curable powder coating according to the present invention.
본 발명에 따르면 상기 열경화형 분체도료와 자외선 경화형 분체도료는 상기 1 : 9 ∼ 3 : 7 의 혼합비를 사용할 경우 가장 양호한 소광효과를 가질 수 있다.According to the present invention, the thermosetting powder coating and the ultraviolet curing powder coating may have the best matting effect when the mixing ratio of 1: 9 to 3: 7 is used.
상기 3 단계로 제조된 분체도료 조성물의 도장은 일반적으로 사용되는 트라이보 또는 코로나 방식의 건을 사용하여 마강판에 도장한다. 상기 도장된 피도물은 컨베어가 설치된 아이알(IR) 조사기에 130 ∼ 150 ℃ ×5 ∼ 10분 동안 아이알(IR) 조사기(엠피디 기준)를 이용하는 열경화한 후 유브이(UV) 경화기에서 1500 mJ/㎠의 조사하는 자외선 경화하여 분체도료를 적용하면 저온경화가 가능하고 반광용으로 유용하다.Coating of the powder coating composition prepared in the above three steps is applied to the horseshoe slab using a tribo or corona gun generally used. The coated object is thermally cured using an IR irradiator (based on MPD) for 130 to 150 ° C. × 5 to 10 minutes in an IR irradiator equipped with a conveyor, and then 1500 mJ / cm 2 in a UV curing machine. When the powder coating is applied by UV curing to irradiate, low temperature curing is possible and it is useful for semi-glow.
이렇게 본 발명에 따라 제조된 분체도료는 제품에 적용 후 상기와 같은 열경화와 자외선 경화를 거치게 되면 외관이 우수할 뿐만 아니라 특정 칼라 및 후도막에서 부착성 및 물성을 개선하여 저온 경화를 요구하는 목재, 엠디에프, 플라스틱 소재와 각종 철구조물 가전제품 케이스 및 사무 기기류 등의 여러 제품에 산업적으로 널리 이용될 수 있다.Thus, the powder coating prepared according to the present invention is not only excellent in appearance when subjected to heat curing and UV curing as described above after applying to the product, but also wood that requires low temperature curing by improving adhesion and physical properties in specific colors and thick films. It can be widely used industrially in various products such as MDF, plastic material and various steel structure home appliance case and office equipment.
이하, 본 발명을 다음의 실시예에 의하여 더욱 상세하게 설명하겠는 바, 본 발명이 실시예에 의하여 한정되는 것은 아니다.Hereinafter, the present invention will be described in more detail with reference to the following examples, which are not intended to limit the present invention.
실시예 1 ∼ 4, 비교예 1 ∼ 4Examples 1-4, Comparative Examples 1-4
본 발명의 실시예와 비교예서 사용한 성분들에 대해 살펴보면 다음과 같다.Looking at the components used in the Examples and Comparative Examples of the present invention are as follows.
1) UVECOAT 2100 : 불포화 폴리에스테르 (UCB 사)1) UVECOAT 2100: Unsaturated Polyester (UCB)
2) ZW4901 : 불포화 폴리에스테르수지 (디.에스.엠사)2) ZW4901: unsaturated polyester resin (D.S.M.S.)
3) P3898 : 비닐 에테르 우레탄 불포화수지3) P3898: vinyl ether urethane unsaturated resin
4) N3311 : 카복실 폴리에스테르 수지 (금강고려화학)4) N3311: Carboxyl Polyester Resin (Kumkang Korea Chemical)
5) N3644 : 카복실 폴리에스테르 수지 (금강고려화학)5) N3644: Carboxyl Polyester Resin (Kumkang Korea Chemical)
6) N8030 : 에폭시 수지, 에폭시당량 800 ∼ 850 (금강고려화학)6) N8030: epoxy resin, epoxy equivalent 800 ~ 850 (Kumkang Korea Chemical)
7) TGIC : 글리시딜기를 가진 경화제 (시바가이기 사)7) TGIC: curing agent with glycidyl group (Ciba-Gaigi Co., Ltd.)
8) C780 : 디시안 디아미드 경화제 (토마스 스완 사)8) C780: dicyane diamide curing agent (Thomas Swan)
9) BTPC : 경화촉진제 (사코쿠사)9) BTPC: Curing accelerator (Sakoku)
10) 2MI : 경화촉진제 (사코쿠사)10) 2MI: Curing accelerator (Sakoku)
11) Irgacure 2959 : 광개시제 (시바가이기)11) Irgacure 2959: Photoinitiator
12) PV-5 : 흐름성 개선제 (WORLEE 사)12) PV-5: Flow improver (WORLEE)
13) Benzoin : 핀홀 방지제 (미원)13) Benzoin: Pinhole Inhibitor (Miwon)
14) CR-80 : 백색안료 (이시하라)14) CR-80: White Pigment (Ishihara)
15) Bayferrox-420 : 무기계 황색 안료 (BAYER 사)15) Bayferrox-420: Inorganic Yellow Pigment (BAYER)
16) Ceraflow920 : 폴리에틸렌계 왁스 (BYK 사)16) Ceraflow920: Polyethylene Wax (BYK)
1 단계 : 다음 표 1, 2의 성분과 함량으로 각 성분들을 프리믹싱 탱크에 삽입하고 프리믹싱 시킨 후 분산기에서 70 ℃로 용융 분산시켜 칩으로 제조하였다. 이 칩은 다시 고속믹서로 분쇄하고 150 매시로 필터하여 열경화 도료를 제조하였다.Step 1: Following the ingredients and contents of the following Tables 1 and 2, each component was inserted into the premixing tank, premixed, and melt-dispersed at 70 ° C. in a disperser to prepare chips. The chip was pulverized again with a high speed mixer and filtered at 150 mesh to prepare a thermosetting paint.
2 단계 : 다음 표 1, 2의 성분과 함량으로 1 단계에서의 열경화형 분체도료와 동일한 방법에 의해 자외선 경화형 분체도료를 제조하였다.Step 2: The UV curable powder coating was prepared by the same method as the thermosetting powder coating in the first step using the ingredients and contents shown in Tables 1 and 2 below.
3 단계 : 상기 1 단계에서 제조된 열경화형 분체도료와 2 단계에서 제조된 자외선 경화형 분체도료를 표 3, 4의 혼합비로 텀블러 믹서에서 충분히 혼합하여 자외선 경화형 반광 분체도료 조성물을 제조하였다.Step 3: The thermosetting powder coating prepared in Step 1 and the UV curing powder coating prepared in Step 2 were sufficiently mixed in a tumbler mixer at the mixing ratios of Tables 3 and 4 to prepare a UV curing semi-glow powder coating composition.
실험예 : 도장후 물성 실험Experimental Example: Physical Properties Test after Painting
상기에서 제조된 분체도료 조성물의 도장은 일반적으로 사용되는 트라이보 또는 코로나 방식의 건을 사용하여 0.7 mm 마강판에 도장한다. 상기 도장된 피도물은 컨베어가 설치된 아이알(IR) 조사기에 130 ℃ ×5분(MDP 기준)조건에서 통과한 후 연속적으로 10 ㎝뒤에 유브(UV) 조사기를 통과하는 조건이다. 이때 유브이(UV)램프는 머큐리와 갈륨등 각 2등으로 구성되어 총 4개를 가지며, 피도물이 받는 광량은 1500 mJ/㎠ 이다. 최종경화물의 도막두께는 60 ∼ 120 ㎛으로 제조하였다. 상기의 방법으로 제조된 분체도료의 도막에 대해 물성시험을 하여 다음 표 3, 4에 나타내었다.The coating of the powder coating composition prepared above is coated on a 0.7 mm horseboard using a tribo or corona gun that is generally used. The coated object is a condition that passes through the UV irradiator after 10 cm continuously after passing through 130 ° C × 5 minutes (MDP basis) conditions to the IR irradiator installed conveyor. At this time, UV lamps are composed of mercury and gallium, etc., each of which has two lamps. The coating film thickness of the final hardened | cured material was manufactured in 60-120 micrometers. Physical properties of the coating film of the powder coating prepared by the above method are shown in Tables 3 and 4 below.
[물성 시험방법][Property Test Method]
(1) 레벨링 : 육안판정/도막의 평활 정도를 육안으로 비교한다.(1) Leveling: Visually compare the degree of smoothing of the visual judgment / film.
(2) 광택 : 비.와이.케이 Gloss meter(BYK사)/60도 반사율.(2) Gloss: B.K Gloss meter (BYK) / 60 degree reflectance.
(3) 핀홀 : 도막의 기공 존재 여부를 육안으로 관찰.(3) Pinhole: Visually observe the presence of pores in the coating film.
(4) 연필 경도 : 60 ∼ 80 ㎛으로 도장된 도막을 미쓰비시(MITSU-BISHI) 연필을 사용하여 경도를 측정하였다.(4) Pencil hardness: The hardness of the coating film coated with 60-80 micrometers was measured using the Mitsubishi (MITSU-BISHI) pencil.
(5) 부착성 : 자와 예리한 칼날로 1 mm 간격의 10/10으로 도막에 칼집을 긋고 부착 여부를 측정.(5) Adhesion: Cut the coating film with 10/10 of 1 mm intervals with a ruler and a sharp blade and measure the adhesion.
(6) 유연성 : 에릭센 테스터기 사용하여 도막의 연신율을 측정.(6) Flexibility: Measure the elongation of the coating film using Ericsen tester.
(7) 굴곡성 : 가드너 굴곡성 테스터기(BYK사), 3/16" 바를 사용하여 시편을 구부리고, 크랙 여부를 확인한다.(7) Flexibility: Bend the specimen using a Gardner Flexibility Tester (BYK), 3/16 "bar and check for cracks.
(8) 충격성 시험 : 충격 테스트기(듀폰사)를 사용해서 측정한다.(8) Impact test: Measured using an impact tester (Dupont).
500 g/1 kg 추와 1/2의 굴곡면을 사용한다.Use 500 g / 1 kg weight and 1/2 curved surface.
(9) 내 알칼리성 시험(9) alkali resistance test
5 % NaOH 수용액(25 ×2), 240 hr 침적 후 도막의 변색, 박리 여부를 확인.5% aqueous NaOH solution (25 × 2), after 240 hr immersion of the coating film was confirmed whether discoloration, peeling.
(10) 내 황산성 시험(10) sulfuric acid resistance test
5 % H2SO4수용액(25 ×2), 240 hr 침적 후 도막의 변색, 박리 여부를 확인.5% aqueous solution of H 2 SO 4 (25 × 2), 240 hr after deposition, the discoloration of the coating film was confirmed.
상기의 표 3에서 보여지는 바와 같이, 본 발명에 따른 자외선 경화분체도료를 적용한 실시예 1 ∼ 3의 도막은 열경화형 분체도료와 자외선 경화형 분체도료 상기의 조성과 함량으로 제조하여 1 : 9 ∼ 3 : 7 중량비로 혼합된 조성물을 아이알 경화한 후 유브이 경화를 하여 제조된 도막으로써, 열경화 수지의 겔 시간이 50 ∼ 65"로 일정하고 외관, 기계적 물성 및 내약품성에서 우수한 면을 보였다. 그러나 종래의 분체 도료를 적용한 비교예 1 ∼ 3의 경우에는 겔 시간이 크며 또한 상기의 혼합비를 벗어나는 범위로 제조되어 외관, 기계적 물성 및 내약품성이 현저히 떨어졌다. 또한 클리어 코트도장 용인 실시예 4와 비교예 4의 경우에도 같은 결과를 보였다.As shown in Table 3 above, the coating film of Examples 1 to 3 to which the ultraviolet curable powder coating according to the present invention is applied is prepared by the composition and content of the thermosetting powder coating and the ultraviolet curable powder coating as described above. : A coating film prepared by curing YAL after mixing the composition in a weight ratio of 7 by weight, and the gel time of the thermosetting resin was constant from 50 to 65 "and showed excellent appearance, mechanical properties, and chemical resistance. In Comparative Examples 1 to 3 to which the powder coating was applied, the gel time was large and was prepared in a range outside the above mixing ratio, and the appearance, mechanical properties, and chemical resistance were remarkably decreased. 4 showed the same result.
상술한 바와 같이, 본 발명은 종래의 자외선 경화형 분체도료의 광택조절이 이루어지지 않아 반광 및 무광도료 제조가 용이하지 않았던 문제점을 속경화가 가능한 열경화형 분체도료와 자외선 경화형 분체도료의 적절한 혼합으로 분체도료 조성물을 제조하여 해결하였고, 특히 아이알(IR) 조사기에서 열경화하고 유브이(UV) 경화기에서 자외선 경화하는 방식을 동시에 사용하여 반광용 도막으로 적용해 본 결과 본 발명의 자외선 경화형 분체도료는 광택 조절이 용이하여 외관이 우수할 뿐만 아니라 칼라코팅 및 후도막에서 부착성 유연성, 굴곡성, 충격성 등의 기계적 물성 및 내약품성에서 우수한 특성을 나타내어 매우 진보된 효과를 나타내었다.As described above, the present invention is a powder by the appropriate mixing of the thermosetting powder coating and the ultraviolet curing powder coating which can be quickly cured the problem that the gloss control of the conventional UV-curable powder coating is not made easy to manufacture semi-gloss and matte paint The coating composition was prepared and solved. In particular, the UV curable powder coating of the present invention was applied to a semi-glow coating film using a method of thermal curing in an IR irradiator and UV curing in a UV curing machine. It is easy to show not only excellent appearance but also excellent properties in mechanical properties and chemical resistance such as adhesion flexibility, flexibility, impact resistance in color coating and thick film, and very advanced effect.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020020088208A KR100987187B1 (en) | 2002-12-31 | 2002-12-31 | UV Curing Powder Coating Composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020020088208A KR100987187B1 (en) | 2002-12-31 | 2002-12-31 | UV Curing Powder Coating Composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20040061906A true KR20040061906A (en) | 2004-07-07 |
| KR100987187B1 KR100987187B1 (en) | 2010-10-11 |
Family
ID=37353394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020020088208A Expired - Fee Related KR100987187B1 (en) | 2002-12-31 | 2002-12-31 | UV Curing Powder Coating Composition |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100987187B1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050069232A (en) * | 2003-12-31 | 2005-07-05 | 주식회사 케이씨씨 | The uv curable powder coating composition having good adhesive property |
| KR101387660B1 (en) * | 2012-06-19 | 2014-04-24 | 주식회사 케이씨씨 | Thermosetting resin composition suitable for manufacturing reflector for surface-mount type photosemiconductor devices |
| KR101403986B1 (en) * | 2012-12-24 | 2014-06-05 | 주식회사 노루홀딩스 | Ultraviolet-curable coating composition and steel sheet using the same |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR930009164B1 (en) * | 1991-11-05 | 1993-09-23 | 주식회사 금성사 | How to process engraved letters of printer |
| KR100526173B1 (en) * | 1998-12-31 | 2006-01-27 | 주식회사 케이씨씨 | Matte powder coating composition for polyester coil coating |
-
2002
- 2002-12-31 KR KR1020020088208A patent/KR100987187B1/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050069232A (en) * | 2003-12-31 | 2005-07-05 | 주식회사 케이씨씨 | The uv curable powder coating composition having good adhesive property |
| KR101387660B1 (en) * | 2012-06-19 | 2014-04-24 | 주식회사 케이씨씨 | Thermosetting resin composition suitable for manufacturing reflector for surface-mount type photosemiconductor devices |
| KR101403986B1 (en) * | 2012-12-24 | 2014-06-05 | 주식회사 노루홀딩스 | Ultraviolet-curable coating composition and steel sheet using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100987187B1 (en) | 2010-10-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2010232935B2 (en) | Hybrid dispersions and methods for producing the same | |
| US20160264816A1 (en) | Polyester Resin for Highly Filled Powder Coating | |
| CN101305063A (en) | Epoxy based coatings | |
| JP2020099904A (en) | Double coating single cured powder coating | |
| CN109517494B (en) | High-hardness epoxy-polyester powder coating composition, preparation method and application thereof | |
| US9353254B1 (en) | Powder coating flow aid | |
| CN108570277A (en) | Durable powdered thermosetting compositions for coatings | |
| CN101072838A (en) | Liquid coating compositions that include a compound formed from at least one polyfunctional isocyanurate, related multi-layer composite coatings, methods and coated substrates | |
| CA2081382C (en) | Solventless coating | |
| CN108676442A (en) | Fingerprint-resistant coating composition and preparation method thereof, fingerprint-resistant coating and preparation method thereof | |
| KR100987187B1 (en) | UV Curing Powder Coating Composition | |
| JP5246977B1 (en) | Water-based anticorrosion coating method and coated body | |
| US6703070B1 (en) | One-component, low temperature curable coating powder | |
| JP2018053028A (en) | Two-component reaction-curable aqueous coating composition for undercoat coating, multilayer film forming method using the same, and coated body | |
| CN101228242B (en) | Powder coating compositions, mid-gloss range coatings, related methods and substrates | |
| US20210380818A1 (en) | Pro gel cap style multifunctional composition | |
| KR100678792B1 (en) | Powder coating composition | |
| KR102030507B1 (en) | Soft feel powder coating having anodized look | |
| KR100949379B1 (en) | Reprocessing method of waste powder coating, regenerated powder coating including waste powder coating and manufacturing method of reclaimed powder coating | |
| KR101163787B1 (en) | Excellent corrosion resistance powder coating composition for an automobiles | |
| CN101993658A (en) | Modified polysiloxane paint with high weather resistance and self-cleaning property | |
| US11008474B2 (en) | Multi-purpose flexibility additive for chemical coating compositions | |
| CN1544540A (en) | Preparation method of nano powder coating | |
| KR100955658B1 (en) | Method for recycling waste powdery paints, reclaimed powdery paints for special pattern and manufacturing method of the same | |
| JP2008184523A (en) | Primer and coating method using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 20021231 |
|
| PG1501 | Laying open of application | ||
| A201 | Request for examination | ||
| PA0201 | Request for examination |
Patent event code: PA02012R01D Patent event date: 20071207 Comment text: Request for Examination of Application Patent event code: PA02011R01I Patent event date: 20021231 Comment text: Patent Application |
|
| E902 | Notification of reason for refusal | ||
| PE0902 | Notice of grounds for rejection |
Comment text: Notification of reason for refusal Patent event date: 20090730 Patent event code: PE09021S01D |
|
| E90F | Notification of reason for final refusal | ||
| PE0902 | Notice of grounds for rejection |
Comment text: Final Notice of Reason for Refusal Patent event date: 20100531 Patent event code: PE09021S02D |
|
| E701 | Decision to grant or registration of patent right | ||
| PE0701 | Decision of registration |
Patent event code: PE07011S01D Comment text: Decision to Grant Registration Patent event date: 20100804 |
|
| GRNT | Written decision to grant | ||
| PR0701 | Registration of establishment |
Comment text: Registration of Establishment Patent event date: 20101005 Patent event code: PR07011E01D |
|
| PR1002 | Payment of registration fee |
Payment date: 20101006 End annual number: 3 Start annual number: 1 |
|
| PG1601 | Publication of registration | ||
| FPAY | Annual fee payment |
Payment date: 20131001 Year of fee payment: 6 |
|
| PR1001 | Payment of annual fee |
Payment date: 20131001 Start annual number: 4 End annual number: 6 |
|
| FPAY | Annual fee payment |
Payment date: 20160926 Year of fee payment: 9 |
|
| PR1001 | Payment of annual fee |
Payment date: 20160926 Start annual number: 7 End annual number: 9 |
|
| PC1903 | Unpaid annual fee |
Termination category: Default of registration fee Termination date: 20200716 |