CN104479518A - Heat resisting powder coating - Google Patents
Heat resisting powder coating Download PDFInfo
- Publication number
- CN104479518A CN104479518A CN201410853087.7A CN201410853087A CN104479518A CN 104479518 A CN104479518 A CN 104479518A CN 201410853087 A CN201410853087 A CN 201410853087A CN 104479518 A CN104479518 A CN 104479518A
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- Prior art keywords
- powder coating
- agent
- powder
- thermotolerance
- weight parts
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Classifications
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- 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
- C09D5/033—Powdery paints characterised by the additives
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- 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
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- 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
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- 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
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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)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a heat resisting powder coating. The heat resisting powder coating comprises 550+/-10 weight parts of saturated polyester resin of the acid value 30-38 mgKOH/g, 42+/-5 weight parts of a TGIC curing agent with the epoxy equivalent 105-115 g/eq, 100+/-10 weight parts of barium sulfate, 42+/-1 weight parts of an additive and 266+/-10 weight parts of pigment, wherein the additive is a mixture of a leveling agent, a degasifying agent and wax powder, all the components are premixed and then extruded into sheets from an extruder at 90-105 DEG C, and finally are crushed and screened to obtain the heat resisting powder. The powder coating disclosed by the invention contains no toxic material, and is suitable for surface coating of metal base materials; compared with the common powder coatings, the powder coating disclosed by the invention has beautiful ornamentation, high temperature resisting level, excellent properties, good scratching resistance and no color change when used for long term.
Description
Technical field
The present invention relates to chemical powder paint field, particularly relate to a kind of thermotolerance powder coating.
Background technology
Powder coating be one not containing solvent, 100% solid powdery coating, has solvent-free, pollution-free, recyclable, environmental protection, the saving energy and resource, reduces labor intensity and film physical strength high.According to the environment for use of the device of institute's application, as the electrical equipment used under hot conditions, higher requirement is had to the resistance toheat of powder coating, especially for requiring that painting color is the product of white, be difficult to accomplish to ensure to keep coating quality in use not change while coating possesses good heat resistance.
Common heat resistant type powder coating in the market can be used for the radiator of steam or hot water heating, it is less that this kind of powder coating toasts the scope inside courtyard colour-change of 20 minutes at 180 ~ 230 DEG C, but colour-change is very big when 180 DEG C of baking 24 hours, therefore, the electrical equipment of use temperature at Gao Re and under long-time condition, electric heating installation using oil as medium more than about 115 degree as surface temperature in use, with ordinary powder paint spraying just can not meet electrical equipment at high temperature life-time service still keep coating quality without the requirement of larger change.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of thermotolerance powder coating ensureing to keep coating quality in use not change while coating possesses good heat resistance for being sprayed on the higher collector surface of use temperature.
For this reason, technical scheme of the present invention is as follows:
A kind of thermotolerance powder coating, be made up of the component of following weight parts:
Wherein, the saturated polyester resin of described vibrin to be acid number be 30 ~ 38mgKOH/g, the TGIC solidifying agent of described solidifying agent to be epoxy equivalent (weight) be 100 ~ 115g/eq, wherein, described auxiliary agent is the mixture of flow agent, air release agent, wax powder, anti-yellowing dose and growth agent.
Preferably, the mass ratio 10:5:5:4 ~ 10:10 of described flow agent, air release agent, wax powder, anti-yellowing dose and growth agent.
Preferably, described flow agent is acrylate flow agent.
Preferably, described wax powder is polytetrafluoro class wax powder.
Preferably, described air release agent is st-yrax.
Preferably, described anti-yellowing dose is anti-yellowing dose of phosphorous acid esters.
Preferably, described growth agent is fatty acid ester growth agent.
In described auxiliary agent, there is one to flow and drying and forming-film process after the interpolation of flow agent makes this powder paint, then progressively form smooth, smooth, a uniform film; Described air release agent makes the gas in coating process in application ground be easy to effusion, and the powder coating like this after solidification is smooth bright and clean, eliminates holiday; Described wax powder makes hand feel and drape after powder coating and their application; Described anti-yellowing dose add can suppress film yellowing effectively, also can stable reproduction even if make film color be in for a long time in hot environment; When described growth agent is conducive to powder paint, in increase, powder amount, overcomes electrostatic shielding.
In described powder coating component, barium sulfate is conducive to this powder coating as filler increases the scratch resistant effect of hardness when powder film forming
Described pigment is Bayer Bitterfeld GmbH mineral dye, makes this thermotolerance powder coating have gorgeous color and covering effect.
This thermotolerance powder coating preparation technology is simple, and by each component pre-mixing taken according to formula, the time is 4 ~ 6 minutes, extrudes in flakes at 90 ~ 105 DEG C of forcing machines, finally pulverizes and sieves and namely obtains described thermotolerance powder coating.
The powder average particle size of described powder coating is about 30 ~ 40um.
In the R&D process to this thermotolerance powder coating, contriver adds anti-yellowing dose in formula and heat resistant type resin makes the resistance toheat of product improve, also to ensure the properties of powder coating itself, as shock resistance, levelling property, adhesive ability, upper powder effect etc. reach standard simultaneously; Further, in the R&D process to this thermotolerance powder coating, when selected vibrin and the model of solidifying agent or charging capacity are slightly different, great performance difference will be produced.Therefore, contriver carries out test of many times through the various ingredients content proportioning of producing different company, obtains the best composition proportioning of this thermotolerance powder coating.
This thermotolerance powder coating using method is simple, when spraying electrical equipment, adopts common electrostatic generator to carry out application.
The present invention selects suitable material, thermotolerance powder coating is obtained after being aided with corresponding additive mixing, this powder coating, not containing toxogen material, is applicable to spray the higher collector surface of use temperature, compared with ordinary powder coating, great thermotolerance while keeping powder coating excellent properties, anti-yellowing change, and production technique and using method are simply, nontoxic non-environmental-pollution, cost is low, and economic and social benefit is remarkable.
Embodiment
Below in conjunction with embodiment, technical scheme of the present invention is described, but the present invention is not only confined to following examples.
In the examples below, the RP003 type vibrin that provides for Anhui Shenjian New Material Co.Ltd of described vibrin; The TGIC solidifying agent that described TGIC solidifying agent provides for Changzhou Niu Tang Chemical Co., Ltd.; Described acrylate flow agent is the 896 type flow agents that moral modest (Shanghai) Chemical Co., Ltd. provides; The polytetrafluoro micronization wax powder that described polytetrafluoro class wax powder provides for Qingdao Economic development company limited; The st-yrax that described air release agent provides for Ningbo South Sea Company; Anti-yellowing dose of described phosphorous acid esters are anti-yellowing dose of the A005 type that Guangzhou Tian Long company limited produces; The growth agent of the A012 type that described fatty acid ester growth agent provides for Hefei Ketai Co. Ltd. or A016 type; The assorted mineral dye that described pigment provides for Bayer Bitterfeld GmbH.
Embodiment 1
Adopt formula as follows:
Embodiment 2
Adopt formula as follows:
Embodiment 3
By the above-mentioned formula composition each component of accurate weighing respectively, be placed in high-speed mixer mixing 4 ~ 6 minutes, extrude in flakes in an extruder at 90 ~ 105 DEG C of temperature condition, grind as median size is at the powder granule of 30 ~ 40um with powder coating pulverizing mill afterwards, powder sieves by thing as qualified product with 180 eye mesh screens.
The powder coating produced by above-mentioned production technique adopts high pressure electrostatic painting voltage to be 30 ~ 0kv, and average film thickness is 60 ~ 80um, and condition of cure is high temperature 200 DEG C solidification 20 minutes.
Main film performance is as follows:
Guang Ze≤90 degree;
Chong Ji≤± 50kg.cm;
Sticking power≤1 grade;
Salt spray resistance line place in 1000 hours: unidirectional corrosion≤2.0 ㎜, uncrossed district: without exception;
Resistance to subtractive: 5wt%NaOH 168h is without exception;
Acid resistance: 3wt%HCl 240h is without exception.
The performance such as thermotolerance powder shock resistance, sticking power, upper powder effect according to preparation of filling a prescription in embodiment 1 ~ 3 all meets the requirements.Simultaneously, tested by the resistance toheat of German BKY CV light splitting color difference meter to coating, color after toasting 24h by this thermotolerance powder coating at 180 DEG C of temperature with baking before powder coating color carry out chromatism test, test result: powder coating colour-change is little, value of chromatism △ E is between 0.5 ~ 0.8, namely high temperature also can not affect the quality of paint spraying at collector surface for a long time, especially for prepared whitewash, high temperature does not affect its quality of colour for a long time yet, has good resistance toheat.
Visible, this thermotolerance powder coating resistance toheat is good, is heated for a long time while can not affecting coating quality, has good shock resistance, strong adhesion, upper powder are effective, no sag phenomenon.
Claims (7)
1. a thermotolerance powder coating, is characterized in that, is mixed with forms by the component of following weight parts:
Wherein, the saturated polyester resin of described vibrin to be acid number be 30 ~ 38mgKOH/g; The TGIC solidifying agent of described solidifying agent to be epoxy equivalent (weight) be 100 ~ 115g/eq; Described auxiliary agent is the mixture of flow agent, air release agent, wax powder, anti-yellowing dose and growth agent.
2. thermotolerance powder coating according to claim 1, is characterized in that, the mass ratio 10:5:5:4 ~ 10:10 of described flow agent, air release agent, wax powder, anti-yellowing dose and growth agent.
3. thermotolerance powder coating according to claim 1 and 2, is characterized in that, described flow agent is acrylate flow agent.
4. thermotolerance powder coating according to claim 1 and 2, is characterized in that, described wax powder is polytetrafluoro class wax powder.
5. thermotolerance powder coating according to claim 1 and 2, is characterized in that, described air release agent is st-yrax.
6. thermotolerance powder coating according to claim 1 and 2, is characterized in that, described anti-yellowing dose is anti-yellowing dose of phosphorous acid ester.
7. thermotolerance powder coating according to claim 1 and 2, is characterized in that, described growth agent is fatty acid ester growth agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410853087.7A CN104479518A (en) | 2014-12-31 | 2014-12-31 | Heat resisting powder coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410853087.7A CN104479518A (en) | 2014-12-31 | 2014-12-31 | Heat resisting powder coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104479518A true CN104479518A (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410853087.7A Pending CN104479518A (en) | 2014-12-31 | 2014-12-31 | Heat resisting powder coating |
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| Country | Link |
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| CN (1) | CN104479518A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105778064A (en) * | 2016-03-21 | 2016-07-20 | 浙江中法新材料有限公司 | Polyester resin for direct-fired boiler tolerant powder coating and preparation method thereof |
| CN106634474A (en) * | 2016-12-29 | 2017-05-10 | 成都信达高分子材料有限公司 | Heat-dissipation powdery paint and preparation method thereof |
| CN108006333A (en) * | 2017-11-29 | 2018-05-08 | 大连新光管道制造有限公司 | High-temperature water pipe network system, pipeline and the pipe fitting of a kind of long-distance delivery |
| CN109161309A (en) * | 2018-08-24 | 2019-01-08 | 六安科瑞达新型材料有限公司 | A kind of open air scratch-resistant powdery paints |
| CN109535945A (en) * | 2018-12-21 | 2019-03-29 | 六安科瑞达新型材料有限公司 | A kind of open air salt spray resistance powdery paints |
| CN109651932A (en) * | 2018-12-21 | 2019-04-19 | 六安科瑞达新型材料有限公司 | A kind of high tenacity epoxide powder coating |
| CN111073470A (en) * | 2019-11-18 | 2020-04-28 | 沧州国润翔盛粉末涂料有限公司 | Special friction-resistant anti-drop toner powder coating for bicycle and application |
| CN111995937A (en) * | 2020-09-01 | 2020-11-27 | 湖南连心科技有限公司 | High-temperature-resistant powder coating and preparation method thereof |
| CN114316757A (en) * | 2022-01-11 | 2022-04-12 | 河南捷宇新材料科技有限公司 | Special vehicle powder coating |
-
2014
- 2014-12-31 CN CN201410853087.7A patent/CN104479518A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105778064A (en) * | 2016-03-21 | 2016-07-20 | 浙江中法新材料有限公司 | Polyester resin for direct-fired boiler tolerant powder coating and preparation method thereof |
| CN106634474A (en) * | 2016-12-29 | 2017-05-10 | 成都信达高分子材料有限公司 | Heat-dissipation powdery paint and preparation method thereof |
| CN106634474B (en) * | 2016-12-29 | 2019-03-01 | 成都信达高分子材料有限公司 | Heat-dissipation powder paint and preparation method thereof |
| CN108006333A (en) * | 2017-11-29 | 2018-05-08 | 大连新光管道制造有限公司 | High-temperature water pipe network system, pipeline and the pipe fitting of a kind of long-distance delivery |
| CN109161309A (en) * | 2018-08-24 | 2019-01-08 | 六安科瑞达新型材料有限公司 | A kind of open air scratch-resistant powdery paints |
| CN109535945A (en) * | 2018-12-21 | 2019-03-29 | 六安科瑞达新型材料有限公司 | A kind of open air salt spray resistance powdery paints |
| CN109651932A (en) * | 2018-12-21 | 2019-04-19 | 六安科瑞达新型材料有限公司 | A kind of high tenacity epoxide powder coating |
| CN111073470A (en) * | 2019-11-18 | 2020-04-28 | 沧州国润翔盛粉末涂料有限公司 | Special friction-resistant anti-drop toner powder coating for bicycle and application |
| CN111995937A (en) * | 2020-09-01 | 2020-11-27 | 湖南连心科技有限公司 | High-temperature-resistant powder coating and preparation method thereof |
| CN114316757A (en) * | 2022-01-11 | 2022-04-12 | 河南捷宇新材料科技有限公司 | Special vehicle powder coating |
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Application publication date: 20150401 |
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