CN104497797A - Super-levelling low-temperature curing powder coating for MDF - Google Patents
Super-levelling low-temperature curing powder coating for MDF Download PDFInfo
- Publication number
- CN104497797A CN104497797A CN201410849230.5A CN201410849230A CN104497797A CN 104497797 A CN104497797 A CN 104497797A CN 201410849230 A CN201410849230 A CN 201410849230A CN 104497797 A CN104497797 A CN 104497797A
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- Prior art keywords
- powder coating
- low temperature
- mdf
- super
- temperature cured
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- 238000000576 coating method Methods 0.000 title abstract 6
- 239000000843 powder Substances 0.000 title abstract 6
- 239000011248 coating agent Substances 0.000 title abstract 5
- 238000013035 low temperature curing Methods 0.000 title abstract 4
- 239000003795 chemical substances by application Substances 0.000 abstract 6
- 238000001723 curing Methods 0.000 abstract 3
- 239000004925 Acrylic resin Substances 0.000 abstract 2
- 229920000178 Acrylic resin Polymers 0.000 abstract 2
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical compound C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 abstract 2
- 239000003822 epoxy resin Substances 0.000 abstract 2
- 229920000647 polyepoxide Polymers 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 2
- 244000028419 Styrax benzoin Species 0.000 abstract 1
- 235000000126 Styrax benzoin Nutrition 0.000 abstract 1
- 235000008411 Sumatra benzointree Nutrition 0.000 abstract 1
- 239000002318 adhesion promoter Substances 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 239000003963 antioxidant agent Substances 0.000 abstract 1
- 230000003078 antioxidant effect Effects 0.000 abstract 1
- 229960002130 benzoin Drugs 0.000 abstract 1
- 230000003750 conditioning effect Effects 0.000 abstract 1
- 238000007872 degassing Methods 0.000 abstract 1
- 239000003623 enhancer Substances 0.000 abstract 1
- 239000000945 filler Substances 0.000 abstract 1
- 235000019382 gum benzoic Nutrition 0.000 abstract 1
- 239000000049 pigment Substances 0.000 abstract 1
- 229920001225 polyester resin Polymers 0.000 abstract 1
- 239000004645 polyester resin Substances 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- 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
-
- 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
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- 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
The invention belongs to the field of functional powder coatings, and particularly relates to a super-levelling low-temperature curing powder coating for an MDF. The powder coating is prepared from the following raw materials in percentage by weight: 20%-40% of epoxy resin, 10%-50% of polyester resin, 1%-10% of acrylic resin, 0-9% of a chemical flatting agent, 1%-5% of modified epoxy resin, 0.2%-0.6% of an adhesion promoter, 2.2%-6.6% of a curing agent, 0.1%-0.5% of a curing accelerator, 1%-3% of a flatting agent, 0.1%-0.6% of a gloss enhancer, 0.1%-0.5% of a surface conditioning agent, 0.3%-0.6% of benzoin, 0.2%-0.8% of a degassing agent, 0.3%-0.7% of an antioxidant, and 10%-20% of filler and pigment. According to the super-levelling low-temperature curing powder coating, the glossiness is adjusted by adjusting the amount of acrylic resin and the chemical flatting agent; highlight, matt and flat coats can be prepared; and the super-levelling low-temperature curing powder coating has the advantages of excellent levelling property, good adhesive force and low curing temperature.
Description
Technical field
The invention belongs to functional powder paint field, be specifically related to the super levelling low temperature cured powder coating of a kind of MDF.
Background technology
Powder coating is a kind of novel not containing solvent 100% solid powdery coating.Have the advantages such as environment friendly and pollution-free, energy-efficient, simple process, coating are sturdy and durable, all over the world, every field is just being widely used, and just with annual tens percent speed increment.Powder coating has occupied very important status in coating industry.
MDF plate and medium density fibre board (MDF), have good physical and mechanical property and processing characteristics, can make the sheet material of different thickness, is widely used in furniture manufacturing industry, construction industry, interior decoration industry etc.The existing spraying coating process of MDF sheet material is paint spraying and powder spraying, but along with country is to the requirement of environmental protection, powder spraying becomes the development trend of MDF sheet material spraying.MDF, because thermal conductivity own is lower, in the curing process because heat absorption is comparatively slow, often there will be the problems such as levelling is bad.So be badly in need of a kind of super levelling low temperature cured powder coating of applicable MDF spraying.
Summary of the invention
For the deficiencies in the prior art, the object of this invention is to provide the super levelling low temperature cured powder coating of a kind of MDF, this powder coating can solidify within the lesser temps short period of time, and coating has splendid levelling, preferably sticking power, good plumpness.
The super levelling low temperature cured powder coating of MDF of the present invention, be made up of the raw material of following weight percentage:
Wherein, resin used is crystal form.
Epoxy resin is bisphenol-A epoxy resin, and preferred DER332, Dow Chemical provides.
Vibrin is that high acid value surpasses weather resistant terminal carboxyl polyester resin, and preferred CRYLCOAT 1506-6, Zhan Xin resin (Shanghai) Co., Ltd. provides.
Acrylic resin is the acrylic resin containing hydroxyl and carboxyl, preferred AR-565, and Shanghai Jin Meng trade Co., Ltd provides.
Modified epoxy is phenol aldehyde modified epoxy resin, preferred PR-98N, and the emerging Industrial Co., Ltd. of upper seawater provides.
Solidifying agent is beta-hydroxy alkylamide, and preferred SDL-552, Yangzhou Sandeli Chemical Co., Ltd. provides.
Adhesion promoter is W-6085, and Suzhou Pa Tena Chemical Co., Ltd. provides.
Curing catalyst is the mixture of pure polyester low-temperature promotor and epoxy low temperature curing agent.Pure polyester low-temperature promotor, preferred TE-230, the auspicious Trade Co., Ltd. in Jiade, Qingdao provides; Epoxy low temperature curing agent, preferred 301Q, Guangzhou Tian Long macromolecular material Science and Technology Ltd. provides.
The preferred W-4040 of surface conditioner, Suzhou Pa Tena Chemical Co., Ltd. provides.
The preferred 603-1A of chemical quenching agent, Ningbo South-sea Chemical Co., Ltd. provides.
Flow agent preferred Hensic H-136 organic silicon modified by polyether flow agent, Guangzhou Heng Sike trade Co., Ltd provides.
Optical brightener is preferred LD-608, and Yangzhou Rieter resin company limited provides.
The preferred CERAFLOUR 961 of air release agent, German Bi Ke chemistry provides.
The preferred antioxidant 1010 of oxidation inhibitor, chemical name four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester.
Color stuffing is the color stuffing that ordinary powder coating uses, and is the mixture of pigment and filler, is that those skilled in the art's routine is selected, the preferred process white of filler, the one in pigment optimization carbon black or iron oxide red.
This powder coating, at 130 ~ 140 DEG C, is cured under the condition of 8 ~ 10min.
Invention MDF is as follows by super levelling low temperature cured powder coating preparation method:
According to formula weighing → mix → extrude → cooling → pulverize → grinding → cross screen sizing → finished product.
Compared with prior art, the present invention has following beneficial effect:
(1) the super levelling low temperature cured powder coating of MDF of the present invention, surpassing weather resistant terminal carboxyl polyester resin by high acid value adopts beta-hydroxy alkylamide to be solidifying agent, add adhesion promoter and curing catalyst, have adjusted its sticking power and solidification value and set time.The present invention makes it have splendid levelling by adding surface conditioner, and can be adjusted the gloss of coatingsurface by the consumption of acrylic resin and chemical quenching agent in adjustment formula, the low temperature cured powder coating of preparation excess of export levelling Gao Guang, zero diopter, sub-light.
(2) the super levelling low temperature cured powder coating of MDF of the present invention, is sprayed on MDF and product surface, and through 130 ~ 140 DEG C, the melting and solidification of 8 ~ 10min can obtain sticking power better, and levelling is splendid, the coating that plumpness is good.
(3) powder coating of the present invention can within the lesser temps short period of time film-forming, and the coating after solidification has splendid levelling, preferably sticking power, good plumpness.Both the problems such as levelling and sticking power when ordinary powder coating sprays MDF goods be bad had been solved, again reduce the temperature and time of powder coating solidification film forming, be conducive to reducing energy consumption, save the energy, it also avoid MDF sheet material because problems of crack in the too high use properties that causes of storing temperature and bake process simultaneously.
Embodiment
Below in conjunction with embodiment, the present invention will be further described.
The all raw materials used in embodiment, except specified otherwise, are commercial.
MDF described in the embodiment of the present invention is as follows by super levelling low temperature cured powder coating preparation method:
According to formula weighing → mix → extrude → pulverize → grinding → cross screen sizing → finished product.
Embodiment 1
The super levelling low temperature cured powder coating of MDF described in the present embodiment, be made up of the raw material of following weight percentage:
The low temperature cured powder coating for the super levelling Gao Guang of MDF prepared according to adopting this formula, after spraying, condition of cure is: solidify 10min at 130 DEG C.
Embodiment 2
The super levelling low temperature cured powder coating of MDF described in the present embodiment, be made up of the raw material of following weight percentage:
The low temperature cured powder coating for the super levelling zero diopter of MDF adopting this formula to prepare, after spraying, condition of cure is solidify 9min at 135 DEG C.
Embodiment 3
The super levelling low temperature cured powder coating of MDF described in the present embodiment, be made up of the raw material of following weight percentage:
The low temperature cured powder coating for the sub-light of the super levelling of MDF adopting this formula to prepare, after spraying, condition of cure is: solidify 8min at 140 DEG C.
Respectively embodiment 1 ~ 3 being prepared the super levelling low temperature cured powder coating of MDF is sprayed on the MDF base material of surface pretreatment, and test coating performance after solidification, test result is in table 1.
Coating test result after the paint spay-coating that table 1 embodiment 1-3 obtains, solidification
| Coat-thickness | Crosshatch adhesion | 60 ° of gloss | |
| Embodiment 1 | 60～90mm | 0 grade | 85 gloss unit |
| Embodiment 2 | 60～90mm | 0 grade | 56 gloss unit |
| Embodiment 3 | 60～90mm | 0 grade | 27 gloss unit |
Claims (10)
1. the super levelling low temperature cured powder coating of MDF, is characterized in that: be made up of the raw material of following weight percentage:
2. the super levelling low temperature cured powder coating of MDF according to claim 1, is characterized in that: epoxy resin is bisphenol-A epoxy resin.
3. the super levelling low temperature cured powder coating of MDF according to claim 1, is characterized in that: vibrin is that high acid value surpasses weather resistant terminal carboxyl polyester resin.
4. the super levelling low temperature cured powder coating of MDF according to claim 1, is characterized in that: acrylic resin is the acrylic resin containing hydroxyl and carboxyl.
5. the super levelling low temperature cured powder coating of MDF according to claim 1, is characterized in that: modified epoxy is phenol aldehyde modified epoxy resin.
6. the super levelling low temperature cured powder coating of MDF according to claim 1, is characterized in that: solidifying agent is beta-hydroxy alkylamide.
7. the super levelling low temperature cured powder coating of MDF according to claim 1, is characterized in that: adhesion promoter is W-6085.
8. the super levelling low temperature cured powder coating of MDF according to claim 1, is characterized in that: curing catalyst is the mixture of pure polyester low-temperature promotor and epoxy low temperature curing agent.
9. the super levelling low temperature cured powder coating of MDF according to claim 1, is characterized in that: surface conditioner is surface conditioner W-4040.
10. the super levelling low temperature cured powder coating of MDF according to claim 1, is characterized in that: this powder coating, at 130 ~ 140 DEG C, is cured under the condition of 8 ~ 10min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410849230.5A CN104497797A (en) | 2014-12-31 | 2014-12-31 | Super-levelling low-temperature curing powder coating for MDF |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410849230.5A CN104497797A (en) | 2014-12-31 | 2014-12-31 | Super-levelling low-temperature curing powder coating for MDF |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104497797A true CN104497797A (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410849230.5A Pending CN104497797A (en) | 2014-12-31 | 2014-12-31 | Super-levelling low-temperature curing powder coating for MDF |
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| CN (1) | CN104497797A (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104893492A (en) * | 2015-04-25 | 2015-09-09 | 何炳贵 | Aluminium ware special-purpose noctilucence paint and application |
| CN104910659A (en) * | 2015-05-11 | 2015-09-16 | 广德美涂士化工有限公司 | Weatherability modified polyester resin coating powder |
| CN104946097A (en) * | 2015-06-30 | 2015-09-30 | 国家电网公司 | Low-temperature non-adhesive petrolatum anticorrosion paste |
| CN104946071A (en) * | 2015-05-13 | 2015-09-30 | 浙江华彩化工有限公司 | Low-temperature matting powder paint |
| CN104962170A (en) * | 2015-06-26 | 2015-10-07 | 苏州普勒新材料有限公司 | 120 DEG C low-temperature curing powder coating and preparation and application method thereof |
| CN105713482A (en) * | 2015-12-18 | 2016-06-29 | 广州源辉化工有限公司 | Powder coating on magnalium and PPS (polyphenylene sulfite) spliced substrate and spraying method of powder coating |
| CN105713490A (en) * | 2016-05-09 | 2016-06-29 | 杨培 | Multi-system infrared curable powder coating for MDF |
| CN106433393A (en) * | 2016-08-31 | 2017-02-22 | 苏州翰晨商贸有限公司 | Matting powder coating |
| CN106700851A (en) * | 2016-12-30 | 2017-05-24 | 安徽美佳新材料股份有限公司 | Porous substrate powder coating and preparation method thereof |
| CN106752759A (en) * | 2016-11-22 | 2017-05-31 | 天长市金陵电子有限责任公司 | A kind of electrostatic spraying special low temperature cured powder paint and preparation method thereof |
| CN107513334A (en) * | 2017-09-20 | 2017-12-26 | 江南载福粉末涂料（张家港）有限公司 | A kind of low-temperature setting insulating epoxy powder coating |
| CN107641429A (en) * | 2017-10-30 | 2018-01-30 | 遵义春华新材料科技有限公司 | Produce a kind of method of the powdery paints for submarine pipeline |
| CN108165065A (en) * | 2017-12-29 | 2018-06-15 | 六安科瑞达新型材料有限公司 | A kind of temperature curing epoxy low-polyester type powder paint delustering agent |
| CN108727529A (en) * | 2017-04-21 | 2018-11-02 | 武汉荣邦华泰科技有限公司 | A kind of carboxyl acrylic resin and the epoxy acrylic powdery paints containing it |
| CN108727530A (en) * | 2017-04-21 | 2018-11-02 | 武汉荣邦华泰科技有限公司 | High acid value carboxy acrylic matting resin and epoxy polyester type powdery paints containing it |
| CN110713774A (en) * | 2019-09-27 | 2020-01-21 | 洛阳双瑞防腐工程技术有限公司 | High-toughness low-temperature fast-curing heavy-duty anticorrosive epoxy powder coating and preparation method thereof |
| CN113462242A (en) * | 2021-07-14 | 2021-10-01 | 陕西蓝晟新材料研发有限公司 | Ultralow-temperature curing powder coating and preparation method thereof |
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| KR790001961B1 (en) * | 1976-08-19 | 1979-12-29 | 마스야마 시게오 | Heat-curable resin compositions for powder paints |
| CN101928503A (en) * | 2009-06-19 | 2010-12-29 | 扬州市金晨化工有限公司 | Anti-corrosion and super-weatherability powder coating and preparation process thereof |
| CN103131308A (en) * | 2012-12-28 | 2013-06-05 | 广州擎天材料科技有限公司 | A high and low acid value two-component carboxyl-terminated polyester resin composition for super weather-resistant dry-blended matte powder coatings and its application |
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Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104893492A (en) * | 2015-04-25 | 2015-09-09 | 何炳贵 | Aluminium ware special-purpose noctilucence paint and application |
| CN104910659A (en) * | 2015-05-11 | 2015-09-16 | 广德美涂士化工有限公司 | Weatherability modified polyester resin coating powder |
| CN104910659B (en) * | 2015-05-11 | 2018-05-11 | 广德美涂士化工有限公司 | A kind of weatherability modified polyester resin powdery paints |
| CN104946071A (en) * | 2015-05-13 | 2015-09-30 | 浙江华彩化工有限公司 | Low-temperature matting powder paint |
| CN104962170A (en) * | 2015-06-26 | 2015-10-07 | 苏州普勒新材料有限公司 | 120 DEG C low-temperature curing powder coating and preparation and application method thereof |
| CN104946097A (en) * | 2015-06-30 | 2015-09-30 | 国家电网公司 | Low-temperature non-adhesive petrolatum anticorrosion paste |
| CN105713482A (en) * | 2015-12-18 | 2016-06-29 | 广州源辉化工有限公司 | Powder coating on magnalium and PPS (polyphenylene sulfite) spliced substrate and spraying method of powder coating |
| CN105713490B (en) * | 2016-05-09 | 2017-12-01 | 山东麦都孚新材料科技有限公司 | MDF many body system infrared curing powdery paints |
| CN105713490A (en) * | 2016-05-09 | 2016-06-29 | 杨培 | Multi-system infrared curable powder coating for MDF |
| CN106433393A (en) * | 2016-08-31 | 2017-02-22 | 苏州翰晨商贸有限公司 | Matting powder coating |
| CN106752759A (en) * | 2016-11-22 | 2017-05-31 | 天长市金陵电子有限责任公司 | A kind of electrostatic spraying special low temperature cured powder paint and preparation method thereof |
| CN106700851A (en) * | 2016-12-30 | 2017-05-24 | 安徽美佳新材料股份有限公司 | Porous substrate powder coating and preparation method thereof |
| CN108727529B (en) * | 2017-04-21 | 2021-04-30 | 武汉荣邦华泰科技有限公司 | Carboxyl acrylic resin and epoxy acrylic powder coating containing same |
| CN108727529A (en) * | 2017-04-21 | 2018-11-02 | 武汉荣邦华泰科技有限公司 | A kind of carboxyl acrylic resin and the epoxy acrylic powdery paints containing it |
| CN108727530A (en) * | 2017-04-21 | 2018-11-02 | 武汉荣邦华泰科技有限公司 | High acid value carboxy acrylic matting resin and epoxy polyester type powdery paints containing it |
| CN108727530B (en) * | 2017-04-21 | 2021-04-30 | 武汉荣邦华泰科技有限公司 | High acid value carboxyl acrylic acid extinction resin and epoxy polyester type powder coating containing same |
| CN107513334A (en) * | 2017-09-20 | 2017-12-26 | 江南载福粉末涂料（张家港）有限公司 | A kind of low-temperature setting insulating epoxy powder coating |
| CN107513334B (en) * | 2017-09-20 | 2020-03-27 | 江南载福粉末涂料（张家港）有限公司 | Low-temperature curing insulating epoxy powder coating |
| CN107641429A (en) * | 2017-10-30 | 2018-01-30 | 遵义春华新材料科技有限公司 | Produce a kind of method of the powdery paints for submarine pipeline |
| CN108165065A (en) * | 2017-12-29 | 2018-06-15 | 六安科瑞达新型材料有限公司 | A kind of temperature curing epoxy low-polyester type powder paint delustering agent |
| CN110713774A (en) * | 2019-09-27 | 2020-01-21 | 洛阳双瑞防腐工程技术有限公司 | High-toughness low-temperature fast-curing heavy-duty anticorrosive epoxy powder coating and preparation method thereof |
| CN110713774B (en) * | 2019-09-27 | 2021-07-13 | 洛阳双瑞防腐工程技术有限公司 | High-toughness low-temperature fast-curing heavy-duty anticorrosive epoxy powder coating and preparation method thereof |
| CN113462242A (en) * | 2021-07-14 | 2021-10-01 | 陕西蓝晟新材料研发有限公司 | Ultralow-temperature curing powder coating and preparation method thereof |
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