CN103709937A - Oil-repellent powder coating and preparation method - Google Patents
Oil-repellent powder coating and preparation method Download PDFInfo
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- CN103709937A CN103709937A CN201310745847.8A CN201310745847A CN103709937A CN 103709937 A CN103709937 A CN 103709937A CN 201310745847 A CN201310745847 A CN 201310745847A CN 103709937 A CN103709937 A CN 103709937A
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Abstract
The invention relates to an oil-repellent powder coating and a preparation method of the oil-repellent powder coating, and belongs to the powder coating field. The powder coating provided by the invention is obtained through the steps of mixing fluorocarbon resin, epoxy modified organic silicon resin, epoxy resin, an isocyanate curing agent, a pigment filler and auxiliaries together in a certain weight ratio, mixing and smelting at temperature ranging from 90 to 115 DEG C and extruding, tableting and crushing, and the grinding by using a pulverizer and sieving to obtain the powdery coating. The powdery coating prepared by the method provided by the invention has the characteristics of high surface hardness and good levelling property; the film of the coating has low surface energy and excellent oil-repellent function; and the oleophobic contact angle of the coating film is greater than 120 degrees. In addition, the epoxy resin is low in viscosity and most substrate is excellent in surface adhesion and is not easy to crack and drop. The powdery coating provided by the invention is applicable to catering and kitchen appliances made of a plurality of materials, and also to other surface spraying needing the oil-repellent characteristic.
Description
Technical field
The present invention relates to a kind of oily powder coating and preparation method thereof of refusing, belong to art of powder coatings.
Background technology
Powder coating is a kind of 100% solid part of containing, and produces solidification process and does not contain the novel environment friendly coating material of liquid solvent and organic volatile thinner.Because it has environment friendly and pollution-free, energy-efficient, simple process, coating is sturdy and durable and the advantage such as powder recoverable, all over the world, every field is just being widely used for it, and now just with annual tens percent speed increment.Along with the expansion of powder coating consumption, except some traditional bulk users, there is the functional powder coating miscellaneous of short run, many variety characteristics in the market requirement now.Wherein have low surface energy, the powder coating that can refuse oily deoiling function will have application prospect more widely in kitchen utensils and other need to be refused oil prod.
More about refusing the report research of powder coating of the specific functions such as oil, hydrophobic automatically cleaning in recent years, but these report researchs all have significantly different from the application.
Chinese patent CN1740250A discloses a kind of self-cleaning powder paint and preparation method thereof, and its coating is by resin, solidifying agent, nano material TiO
2, color stuffing and other auxiliary agents be prepared from, coating has self-cleaning property.This patent is to utilize " nano material TiO
2" performance give powder coating self-cleaning function, but due to nano-TiO
2there is higher catalytic activity, easily make resin body in coating by photo-oxidative degradation, have a strong impact on use properties and the work-ing life of coating.And this coating is the spraying that is applied to metal material ground, be different from patent of the present invention.
Chinese patent CN103194140A discloses a kind of super Weather-proof self-cleaning powder coating and preparation method thereof, and this patent is with terminal carboxyl polyester and contains nano-TiO
2fluorocarbon resin and solidifying agent, color stuffing and other auxiliary agents be prepared from.This patent is to use nano material TiO equally
2, reach self-cleaning function, and its all raw material and prepared powder coating Application Areas have from this patent significantly different.
Chinese patent CN101705040A discloses a kind of fluorine-modified methacrylic acid epoxy powder coating and preparation method thereof in addition, this patent is to utilize the method for chemical modification to change the performance of raw material resin, makes powder coating have hydrophobic oleophobic function.Because chemical modifying process is more complicated, be difficult for realizing, limited the application of this processing method.
Summary of the invention
The object of this invention is to provide a kind of oily powder coating of refusing, this powder coating has excellent surperficial levelling property and hardness, lower surface energy and the excellent functional oil of refusing; The present invention provides its preparation method simultaneously.
Of the present inventionly refuse oily powder coating and using the composite resin of silicone resin, epoxy resin and fluorocarbon resin as the matrix resin of powder coating, using isocyanic ester as solidifying agent.
Of the present inventionly refuse oily powder coating, the raw material of preferred following mass percent is made:
Of the present inventionly refusing oily powder coating, is to take silicone resin, epoxy resin and fluorocarbon resin as base-material, and isocyanic ester is as solidifying agent, and adds appropriate pigment, filler and auxiliary agent etc. to make.The routine that wherein pigment, filler are those skilled in the art is selected.
The preferred KD213 of described epoxy resin, national capital Chemical Co., Ltd. provides.
The preferred SRF-750P of described fluorocarbon resin, Beijing Hua Tongrui material Science and Technology Ltd. of speeding.
The described preferred SILRES603 of epoxide modified silicone resin, watt digests work (China) company limited.
Described solidifying agent is isocyanate curing agent, preferred B1530, Bayer Group.
The preferred Hensic H-136 of described flow agent organic silicon modified by polyether flow agent, Guangzhou Heng Sike trade Co., Ltd.
The preferred German Bi Ke CERAFLOUR961 air release agent of described air release agent.
Described oxidation inhibitor preferably 1010, chemical name four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester.
The described preparation method who refuses oily powder coating, comprises the following steps: by specific client, determine and to refuse oil-bound distemper end formulation for coating material → claim raw material → machine batch mixing → coextrusion in batch mixing pot → compressing tablet material → pulverizings → grinding → mistake screen sizing → refuse oily powder coating product detection packing → finished product by formula.
The described oil-bound distemper end paint coatings of refusing, is to refuse oil-bound distemper powder paint spraying after body surface, and is warmed up to 200 ℃ at 150 ℃, at 200 ℃, keeps completely solidifying and obtaining under 15～25 minutes conditions.The gauge control of coating is between 60～100 μ m.
The coating curing process of powder coating is as follows:
Workpiece surface pre-treatment → spraying is refused oily powder coating → 150 ℃ and is warmed up to 200 ℃, at 200 ℃, keeps solidify under 15～25 minutes conditions → Workpiece inspection warehouse-in.
Beneficial effect of the present invention is as follows:
The present invention uses has the good fluorocarbon resin of chemical stability, the epoxy resin that epoxy modified silicone resin and viscosity are low, adhesive is excellent of low surface energy carries out composite, matrix resin as powder coating, add isocyanate curing agent, color stuffing and auxiliary agent, through 90-115 ℃, mixingly melt extrude, compressing tablet is broken, then the powder coating obtaining after being sieved by pulverizing mill grinding.The prepared powder coating of the present invention has excellent surperficial levelling property and hardness, and lower surface energy, has the excellent functional oil of refusing, and its oleophobic contact angle is greater than 120 °.In addition, epoxy powder coating and most of substrate surface have excellent adhesive, not easy to crack coming off.Powder coating of the present invention is applicable to the food and drink kitchen utensils of various material and surface spraying that other need to refuse oil prod is used.
Embodiment
Below in conjunction with embodiment, the present invention is described further.
In embodiment: epoxy modified silicone resin used is SILRES603, epoxy resin is KD213, fluorocarbon resin is SRF-750P, isocyanate curing agent is B1530, flow agent is Hensic H-136 organic silicon modified by polyether flow agent, air release agent is CERAFLOUR961 air release agent, and oxidation inhibitor is 1010.
Embodiment 1
Embodiment 2
Embodiment 3
Embodiment 4
Embodiment 5
Embodiment 6
Embodiment 7
By the experiment of filming of embodiment 1-7 powder coating, specifically will refuse oil-bound distemper powder paint spraying after MDF plate surface, and with 2 ℃/min, 150 ℃ are warmed up to 200 ℃, at 200 ℃, keep completely solidifying and obtaining under 20 minutes conditions, the gauge control of coating is at 80 ± 5 μ m.
The performance test results that embodiment 1-7 powder coating is filmed is as shown in table 1:
Table 1 embodiment 1-7 powder coating film performance table with test results
Claims (5)
1. refuse an oily powder coating, it is characterized in that: this powder coating is usingd the composite resin of silicone resin, epoxy resin and fluorocarbon resin as the matrix resin of powder coating, usings isocyanic ester as solidifying agent.
2. according to claim 1ly refuse oily powder coating, it is characterized in that: the raw material by following mass percent is made:
3. the preparation method who refuses oily powder coating described in claim 1 or 2, is characterized in that comprising the following steps: raw materials weighing → batch mixing → melt extruding → compressing tablet material → pulverizing → grinding → mistake screen sizing → product detects packing → finished product.
4. refuse an oil-bound distemper end paint coatings, it is characterized in that: described coating, by arbitrary described the refusing oil-bound distemper powder paint spraying and be warmed up to 200 ℃ at 150 ℃ of claim 1-3, keeps completely solidifying and obtaining under 15～25 minutes conditions at 200 ℃.
5. the oil-bound distemper end paint coatings of refusing according to claim 4, is characterized in that: the gauge control of described coating is between 60～100 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310745847.8A CN103709937A (en) | 2013-12-30 | 2013-12-30 | Oil-repellent powder coating and preparation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310745847.8A CN103709937A (en) | 2013-12-30 | 2013-12-30 | Oil-repellent powder coating and preparation method |
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| CN103709937A true CN103709937A (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310745847.8A Pending CN103709937A (en) | 2013-12-30 | 2013-12-30 | Oil-repellent powder coating and preparation method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104387866A (en) * | 2014-12-07 | 2015-03-04 | 李永志 | Fireproof automobile powder coating |
| CN104387867A (en) * | 2014-12-07 | 2015-03-04 | 李永志 | Fireproof automotive powder coating with good adhesive force |
| CN105062302A (en) * | 2015-07-22 | 2015-11-18 | 安徽圣德建材科技有限公司 | High-performance thermosetting epoxy resin powder coating |
| CN105199540A (en) * | 2015-10-21 | 2015-12-30 | 哈尔滨工程大学 | Method for preparing fluorosilane-modified HZSM-5 molecular sieve epoxy resin for magnesium-lithium alloy surface coating |
| CN106883693A (en) * | 2017-03-31 | 2017-06-23 | 中山市凯德美氟碳新材料有限公司 | A kind of high-performance thermostable fluorine Si powder coating and preparation method thereof |
| CN108753023A (en) * | 2018-06-26 | 2018-11-06 | 常州穗时新材料有限公司 | A kind of organosilicon ceramic coating and preparation method |
| CN114145651A (en) * | 2020-09-07 | 2022-03-08 | 佛山市顺德区美的电热电器制造有限公司 | Paste, cooking container, preparation method of cooking container and cooking equipment |
| CN115595570A (en) * | 2022-07-18 | 2023-01-13 | 上海闻敬化工科技有限公司（Cn） | Application of organic silicon resin in surface treatment of metal workpiece |
| CN116285667A (en) * | 2023-04-10 | 2023-06-23 | 安迪森(苏州)硬质合金有限公司 | High-wear-resistance composite coating, preparation method and production equipment thereof |
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| US20040102561A1 (en) * | 2002-06-28 | 2004-05-27 | Hiroshi Nakano | Powder coating composition |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104387866A (en) * | 2014-12-07 | 2015-03-04 | 李永志 | Fireproof automobile powder coating |
| CN104387867A (en) * | 2014-12-07 | 2015-03-04 | 李永志 | Fireproof automotive powder coating with good adhesive force |
| CN105062302A (en) * | 2015-07-22 | 2015-11-18 | 安徽圣德建材科技有限公司 | High-performance thermosetting epoxy resin powder coating |
| CN105199540A (en) * | 2015-10-21 | 2015-12-30 | 哈尔滨工程大学 | Method for preparing fluorosilane-modified HZSM-5 molecular sieve epoxy resin for magnesium-lithium alloy surface coating |
| CN106883693A (en) * | 2017-03-31 | 2017-06-23 | 中山市凯德美氟碳新材料有限公司 | A kind of high-performance thermostable fluorine Si powder coating and preparation method thereof |
| CN108753023A (en) * | 2018-06-26 | 2018-11-06 | 常州穗时新材料有限公司 | A kind of organosilicon ceramic coating and preparation method |
| CN114145651A (en) * | 2020-09-07 | 2022-03-08 | 佛山市顺德区美的电热电器制造有限公司 | Paste, cooking container, preparation method of cooking container and cooking equipment |
| CN115595570A (en) * | 2022-07-18 | 2023-01-13 | 上海闻敬化工科技有限公司（Cn） | Application of organic silicon resin in surface treatment of metal workpiece |
| CN116285667A (en) * | 2023-04-10 | 2023-06-23 | 安迪森(苏州)硬质合金有限公司 | High-wear-resistance composite coating, preparation method and production equipment thereof |
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