KR102190656B1 - 셀 발현 균일도가 우수한 발포시트 및 이의 제조방법 - Google Patents
셀 발현 균일도가 우수한 발포시트 및 이의 제조방법 Download PDFInfo
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- KR102190656B1 KR102190656B1 KR1020180169040A KR20180169040A KR102190656B1 KR 102190656 B1 KR102190656 B1 KR 102190656B1 KR 1020180169040 A KR1020180169040 A KR 1020180169040A KR 20180169040 A KR20180169040 A KR 20180169040A KR 102190656 B1 KR102190656 B1 KR 102190656B1
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- 239000006260 foam Substances 0.000 title claims abstract description 185
- 238000002360 preparation method Methods 0.000 title 1
- 239000010954 inorganic particle Substances 0.000 claims abstract description 50
- 239000004645 polyester resin Substances 0.000 claims abstract description 48
- 229920001225 polyester resin Polymers 0.000 claims abstract description 47
- 235000013305 food Nutrition 0.000 claims description 24
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 22
- 239000006229 carbon black Substances 0.000 claims description 22
- -1 polyethylene terephthalate Polymers 0.000 claims description 21
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 20
- 238000005187 foaming Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 18
- 229920005989 resin Polymers 0.000 claims description 18
- 239000011347 resin Substances 0.000 claims description 18
- 239000000454 talc Substances 0.000 claims description 18
- 229910052623 talc Inorganic materials 0.000 claims description 18
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 14
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 14
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 14
- 239000000377 silicon dioxide Substances 0.000 claims description 11
- 238000001125 extrusion Methods 0.000 claims description 10
- 229920000954 Polyglycolide Polymers 0.000 claims description 5
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims description 4
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 4
- 229920001707 polybutylene terephthalate Polymers 0.000 claims description 4
- 239000011112 polyethylene naphthalate Substances 0.000 claims description 4
- 239000004633 polyglycolic acid Substances 0.000 claims description 4
- 239000004626 polylactic acid Substances 0.000 claims description 4
- 229920002215 polytrimethylene terephthalate Polymers 0.000 claims description 4
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 3
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 3
- 229920000747 poly(lactic acid) Polymers 0.000 claims 3
- 239000004698 Polyethylene Substances 0.000 claims 1
- WNLRTRBMVRJNCN-UHFFFAOYSA-L adipate(2-) Chemical compound [O-]C(=O)CCCCC([O-])=O WNLRTRBMVRJNCN-UHFFFAOYSA-L 0.000 claims 1
- 229920000573 polyethylene Polymers 0.000 claims 1
- 230000000379 polymerizing effect Effects 0.000 claims 1
- 230000000052 comparative effect Effects 0.000 description 24
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 6
- 230000005611 electricity Effects 0.000 description 6
- 238000000465 moulding Methods 0.000 description 6
- 230000003068 static effect Effects 0.000 description 6
- 239000002667 nucleating agent Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 239000011324 bead Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 239000012760 heat stabilizer Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- VLDPXPPHXDGHEW-UHFFFAOYSA-N 1-chloro-2-dichlorophosphoryloxybenzene Chemical compound ClC1=CC=CC=C1OP(Cl)(Cl)=O VLDPXPPHXDGHEW-UHFFFAOYSA-N 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 3
- 229920002223 polystyrene Polymers 0.000 description 3
- 239000002562 thickening agent Substances 0.000 description 3
- AFABGHUZZDYHJO-UHFFFAOYSA-N 2-Methylpentane Chemical compound CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 description 2
- GXDHCNNESPLIKD-UHFFFAOYSA-N 2-methylhexane Natural products CCCCC(C)C GXDHCNNESPLIKD-UHFFFAOYSA-N 0.000 description 2
- QWGRWMMWNDWRQN-UHFFFAOYSA-N 2-methylpropane-1,3-diol Chemical compound OCC(C)CO QWGRWMMWNDWRQN-UHFFFAOYSA-N 0.000 description 2
- NBOCQTNZUPTTEI-UHFFFAOYSA-N 4-[4-(hydrazinesulfonyl)phenoxy]benzenesulfonohydrazide Chemical compound C1=CC(S(=O)(=O)NN)=CC=C1OC1=CC=C(S(=O)(=O)NN)C=C1 NBOCQTNZUPTTEI-UHFFFAOYSA-N 0.000 description 2
- 239000004156 Azodicarbonamide Substances 0.000 description 2
- 239000004604 Blowing Agent Substances 0.000 description 2
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 241000872198 Serjania polyphylla Species 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 description 2
- 235000019399 azodicarbonamide Nutrition 0.000 description 2
- 239000001273 butane Substances 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 230000032050 esterification Effects 0.000 description 2
- 238000005886 esterification reaction Methods 0.000 description 2
- 239000004088 foaming agent Substances 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 2
- CRSOQBOWXPBRES-UHFFFAOYSA-N neopentane Chemical compound CC(C)(C)C CRSOQBOWXPBRES-UHFFFAOYSA-N 0.000 description 2
- 235000012149 noodles Nutrition 0.000 description 2
- 150000002895 organic esters Chemical class 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 238000012643 polycondensation polymerization Methods 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920000921 polyethylene adipate Polymers 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920006327 polystyrene foam Polymers 0.000 description 2
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- MWRWFPQBGSZWNV-UHFFFAOYSA-N Dinitrosopentamethylenetetramine Chemical compound C1N2CN(N=O)CN1CN(N=O)C2 MWRWFPQBGSZWNV-UHFFFAOYSA-N 0.000 description 1
- 239000004594 Masterbatch (MB) Substances 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 229920003232 aliphatic polyester Polymers 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000002666 chemical blowing agent Substances 0.000 description 1
- 239000007809 chemical reaction catalyst Substances 0.000 description 1
- NEHMKBQYUWJMIP-NJFSPNSNSA-N chloro(114C)methane Chemical compound [14CH3]Cl NEHMKBQYUWJMIP-NJFSPNSNSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000013538 functional additive Substances 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- KYTZHLUVELPASH-UHFFFAOYSA-N naphthalene-1,2-dicarboxylic acid Chemical compound C1=CC=CC2=C(C(O)=O)C(C(=O)O)=CC=C21 KYTZHLUVELPASH-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 150000003018 phosphorus compounds Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- ULWHHBHJGPPBCO-UHFFFAOYSA-N propane-1,1-diol Chemical compound CCC(O)O ULWHHBHJGPPBCO-UHFFFAOYSA-N 0.000 description 1
- 210000002307 prostate Anatomy 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0066—Use of inorganic compounding ingredients
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0012—Combinations of extrusion moulding with other shaping operations combined with shaping by internal pressure generated in the material, e.g. foaming
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
Description
무기입자의 평균 크기 | |
실시예 2 | 0.5 ㎛ |
실시예 3 | 3 ㎛ |
실시예 4 | 10 ㎛ |
실시예 5 | 50 ㎛ |
무기입자 | 카본 블랙 | ||||
종류 | 함량 | 평균 크기 | 함량 | 평균 크기 | |
실시예 7 | 탈크 | 0.3 중량% | 3 ㎛ | 0.5 중량% | 30±5 nm |
실시예 8 | 1.0 중량% | 30±5 nm | |||
실시예 9 | 1.0 중량% | 100±10 nm | |||
실시예 10 | 1.0 중량% | 500±50 nm | |||
실시예 11 | 1.0 중량% | 2000±500 nm | |||
실시예 12 | 2.0 중량% | 30±5 nm | |||
실시예 13 | 3.0 중량% | 30±5 nm | |||
실시예 14 | 실리카 | 3.0 중량% | 30±5 nm |
구분 | 비교예 1 | 실시예 1 | 실시예 2 | 실시예 3 | 실시예 4 | 실시예 5 | |
무기입자의평균 크기 | 100 ㎛ | 0.1 ㎛ | 0.5 ㎛ | 3 ㎛ | 10 ㎛ | 50 ㎛ | |
평균 셀 사이즈 | 700 ㎛ | 10 ㎛ | 20 ㎛ | 300 ㎛ | 350 ㎛ | 100 ㎛ | |
셀 발현 균일도 |
최소 셀 사이즈 | ≥200 ㎛ | ≥5 ㎛ | ≥10 ㎛ | ≥200 ㎛ | ≥200 ㎛ | ≥50 ㎛ |
최대 셀 사이즈 | ≤1100 ㎛ | ≤15 ㎛ | ≤30 ㎛ | ≤400 ㎛ | ≤500 ㎛ | ≤150 ㎛ | |
평균 셀 사이즈 기준 편차율 | ±71.4% | ±50% | ±50% | ±50% | ±42.8% | ±50% | |
평균 셀 밀도 | 768 cells/cm2 | 24000 cells/cm2 | 22300 cells/cm2 | 1496 cells/cm2 | 1520 cells/cm2 | 5200 cells/cm2 |
구분 | 비교예 1 | 실시예 1 | 실시예 2 | 실시예 3 | 실시예 4 | 실시예 5 |
무기입자의평균 크기 | 100 ㎛ | 0.1 ㎛ | 0.5 ㎛ | 3 ㎛ | 10 ㎛ | 50 ㎛ |
셀 사이즈 | 700 ㎛ | 10 ㎛ | 20 ㎛ | 300 ㎛ | 350 ㎛ | 100 ㎛ |
셀 밀도 | 768 cells/cm2 | 24000 cells/cm2 | 22300 cells/cm2 | 1496 cells/cm2 | 1520 cells/cm2 | 5200 cells/cm2 |
내충격성 | 80% | 97% | 96.4% | 92.5% | 90% | 93% |
형태 변형률 | 20% | 3% | 3.6% | 7.5% | 10% | 7% |
구분 | 비교예 2 | 실시예 6 | 실시예 7 | 실시예 8 | 실시예 9 | 실시예 10 | 실시예 11 | 실시예 12 | 실시예 13 | 실시예 14 |
무기입자 종류 |
탈크 | 탈크 | 실리카 | |||||||
카본블랙 함량 [중량%] |
0 | 0.1 | 0.5 | 1 | 1 | 1 | 1 | 2 | 3 | 3 |
카본 블랙평균 크기 [nm] |
- | 30±5 | 30±5 | 30±5 | 100±10 | 500±50 | 2000±500 | 30±5 | 30±5 | 30±5 |
발포시트 비저항값[Ω·㎝] | 1015 | 1012 | 1012 | 1012 | 1012 | 1012 | 1012 | 1010 | 108 | 108 |
정전기 발생유무 | ○ | X | X | X | X | X | X | X | X | X |
구분 | 비교예 1 | 실시예 6 | 실시예 7 | 실시예 8 | 실시예 9 | 실시예 10 | 실시예 11 | 실시예 12 | 실시예 13 | 실시예 14 | |
무기입자 종류 |
탈크 | 탈크 | 실리카 | ||||||||
카본블랙 함량 [중량%] |
0 | 0.1 | 0.5 | 1 | 1 | 1 | 1 | 2 | 3 | 3 | |
카본 블랙평균 크기 [nm] |
- | 30±5 | 30±5 | 30±5 | 100±10 | 500±50 | 2000±500 | 30±5 | 30±5 | 30±5 | |
시트예열 시간(sec) | 20 | 10 | 10 | 10 | 10 | 10 | 10 | 8 | 6 | 6 | |
성형성 | 나쁨 | 보통 | 보통 | 우수 | 우수 | 우수 | 우수 | 우수 | 우수 | 우수 | |
체적변화 (%) |
발포 시트 |
40 | 100 | 150 | 200 | 200 | 200 | 200 | 250 | 250 | 150 |
성형품 | 17 | 5 | 5 | 5 | 5 | 5 | 5 | 3 | 2 | 2 |
Claims (14)
- 무기입자를 포함하는 폴리에스테르 수지의 발포시트로서,
무기입자의 평균 크기는 0.05 ㎛ 내지 60 ㎛이며,
발포시트의 평균 셀 사이즈는 5 ㎛ 내지 500 ㎛이고,
발포시트의 평균 셀 밀도는 800 cells/㎠ 내지 25000 cells/㎠이며,
발포시트의 평균 셀 사이즈에 대한 최대 및 최소 셀 사이즈의 편차가 ±60% 이내이고,
하기 수학식 1을 만족하는 발포시트:
[수학식 1]
50% ≤ |V1-V0| / V0 × 100 ≤ 300%
상기 수학식 1에서,
V0은 지름이 10 cm인 원형의 발포시트를 200℃ 오븐에서 30초 동안 노출시키기 이전의 발포시트의 체적으로, 단위는 cm3이고,
V1은 지름이 10 cm인 원형의 발포시트를 200℃ 오븐에서 30초 동안 노출시킨 후 발포시트의 체적으로, 단위는 cm3이다.
- 제1항에 있어서,
발포시트는 하기 수학식 2를 만족하는 발포시트:
[수학식 2]
|SV1-SV0| / SV0 × 100 ≤ 20%
상기 수학식 2에서,
SV0은 길이 10 cm 및 너비 10 cm인 발포시트로부터 높이가 30 cm 되는 위치에서 500g의 구(직경: 7 cm)를 자유 낙하시키기 전 발포시트의 체적으로, 단위는 cm3이고,
SV1은 길이 10 cm 및 너비 10 cm인 발포시트로부터 높이가 30 cm 되는 위치에서 500g의 구(직경: 7 cm)를 발포시트로 자유 낙하시킨 후 발포시트의 체적으로, 단위는 cm3이다.
- 제1항에 있어서,
무기입자의 함량은 발포시트 전체 중량에 대하여 0.05 중량% 내지 1.00 중량%인 발포시트.
- 제1항에 있어서,
무기입자는 산화티탄(TiO2), 활석(Talc), 실리카(Silica) 및 산화지르코늄(ZrO2)으로 이루어진 군으로부터 선택되는 1종 이상인 발포시트.
- 삭제
- 제1항에 있어서,
폴리에스테르 수지는 폴리에틸렌 테레프탈레이트(Polyethylene Terephthalate, PET), 폴리부틸렌 테레프탈레이트(Polybutylene Terephthalate, PBT), 폴리트리메틸렌 테레프탈레이트(Polytrimethylene Terephthalate, PTT), 폴리에틸렌 나프탈레이트(Polyethylene naphthalate, PEN), 폴리에틸렌 아디파트(Polyehtylene adipate, PEA), 폴리락트산(Poly Lactic acid, PLA), 및 폴리글리코르산(Polyglycolic acid, PGA)으로 이루어진 군으로부터 선택되는 1종 이상인 발포시트.
- 제1항에 있어서,
폴리에스테르 수지는 카본블랙을 더 포함하며,
상기 카본블랙의 함량은 발포시트 전체 중량에 대하여 0.05 중량% 내지 5 중량%인 발포시트.
- 제7항에 있어서,
카본블랙의 크기는 평균 10 nm 내지 5000 nm 인 발포시트.
- 제1항에 따른 발포시트를 포함하는 식품용기로서,
하기 수학식 3을 만족하는 식품용기:
[수학식 3]
|CV1-CV0| / CV0 × 100 ≤ 15%
상기 수학식 3에서,
CV0은 식품용기를 200℃ 오븐에서 30초 동안 노출시키기 이전의 발포시트의 체적으로, 단위는 cm3이고,
CV1은 식품용기를 200℃ 오븐에서 30초 동안 노출시킨 후 발포시트의 체적으로, 단위는 cm3이다.
- 폴리에스테르 수지 및 무기입자를 포함하는 수지 혼합물을 압출 발포하여 발포시트를 제조하는 단계를 포함하는 제1항의 발포시트의 제조방법.
- 제10항에 있어서,
폴리에스테르 수지는 디카르복실산 성분 및 글리콜 성분으로부터 중합되거나; 히드록시카르복실산 성분을 중합하여 제조되는 발포시트의 제조방법.
- 제10항에 있어서,
발포시트를 제조하는 단계는 1 ㎜ 내지 10 ㎜의 평균 두께로 발포시트를 형성하는 발포시트의 제조방법.
- 제10항에 있어서,
무기입자의 함량은 수지 혼합물 전체 중량에 대하여 0.05 중량% 내지 1.00 중량%인 발포시트의 제조방법.
- 제10항에 있어서,
수지 혼합물은 전체 중량에 대하여 0.05 중량% 내지 5 중량%의 카본 블랙을 더 포함하는 발포시트의 제조방법.
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