Preparation method and application of thermosetting powder coating

A thermosetting powder and coating technology, used in powder coatings, fire-retardant coatings, epoxy resin coatings, etc., can solve the problems of poor weather resistance, easy corrosion, and performance that cannot fully meet the needs of use, and achieve good fire resistance, improved use performance, The effect of good application prospects

Inactive Publication Date: 2018-10-02
SUZHOU JUKANG NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development of society, the performance of existing thermosetting powder coatings can no longer fully meet the needs of use, and problems such as poor weather resistance, insufficient water resistance, and easy corrosion often occur, which restricts the further application of thermosetting powder coatings.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Add 40 parts of water-based acrylic epoxy resin, 25 parts of polylactic acid resin, 10 parts of hydrogenated rosin pentaerythritol ester, 8 parts of N,N-methylenebisacrylamide, and 5 parts of ethylene bisstearamide to the stainless steel reaction In the still, the internal temperature of the stainless steel reaction kettle was raised to 130°C, and the stirring reaction was carried out at the reaction temperature to obtain a high-temperature reactant, the stirring rate was 150 rpm, and the reaction time was 55 minutes;

[0025] (2) Put 6 parts of kaolin into a 10% hydrochloric acid solution and soak for 20 minutes, filter and wash the resulting precipitate with deionized water for 3 times, collect the precipitate and put it into a high-temperature calciner. Calcined at a temperature of 35 minutes, then naturally cooled to room temperature, and then 40 parts of modified auxiliary agents were added to the calcined product. The mixed solution prepared by deionized water...

Embodiment 2

[0032] (1) Add 45 parts of water-based acrylic epoxy resin, 30 parts of polylactic acid resin, 13 parts of hydrogenated rosin pentaerythritol ester, 10 parts of N,N-methylenebisacrylamide, and 7 parts of ethylene bisstearamide to the stainless steel reaction In the still, the internal temperature of the stainless steel reaction kettle was raised to 140°C, and the stirring reaction was carried out at the reaction temperature to obtain a high-temperature reactant, the stirring rate was 200 rpm, and the reaction time was 60 minutes;

[0033] (2) Put 7 parts of kaolin into a 10% hydrochloric acid solution and soak for 25 minutes, filter and wash the resulting precipitate with deionized water 4 times, collect the precipitate and put it into a high-temperature calciner. Calcined at a temperature of 40 minutes, then naturally cooled to room temperature, and then 50 parts of modified auxiliary agents were added to the calcined product. The modified auxiliary agents were made of dodecyl...

Embodiment 3

[0040] (1) Add 50 parts of water-based acrylic epoxy resin, 35 parts of polylactic acid resin, 16 parts of hydrogenated rosin pentaerythritol ester, 12 parts of N,N-methylenebisacrylamide, and 9 parts of ethylene bisstearamide to the stainless steel reaction In the still, the internal temperature of the stainless steel reaction kettle was raised to 150°C, and the stirring reaction was carried out at the reaction temperature to obtain a high-temperature reactant, the stirring rate was 250 rpm, and the reaction time was 65 minutes;

[0041] (2) Put 8 parts of kaolin into a 10% hydrochloric acid solution and soak for 30 minutes, filter and wash the precipitate with deionized water for 5 times, collect the precipitate and put it into a high-temperature calciner. Calcined at a temperature of 45 minutes, then naturally cooled to room temperature, and then 60 parts of modified additives were added to the calcined product. The modified additives were made of dodecyl alcohol ester, dicy...

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Abstract

The invention discloses a preparation method and application of a thermosetting powder coating. The method adopts water-borne acrylic epoxy resin, polylactic acid resin, hydrogenated rosin pentaerythritol ester, N,N-methylene bisacrylamide and ethylene distearamide for reaction at high temperature to prepare a high temperature reactant, kaolin is soaked in acid, calcined and modified into a modified calcined reactant, the high temperature reactant and the modified calcined reactant are mixed, and then asbestos powder, allyl thiourea, a pigment, a leveling agent and a film forming agent are added for ultrasonic dispersion; and then a molten extrusion material is obtained by heating, melting, mixing and extrusion and is pressed into flakes; and finally, the flake material is crushed, cyclone-separated, graded and screened, detected and packed to obtain the finished product. The prepared thermosetting powder coating has good fireproof performance and good application prospect in buildingcoating.

Description

technical field [0001] The invention relates to the technical field of thermosetting powder processing, in particular to a method for preparing a thermosetting powder coating and its application. Background technique [0002] Powder coating refers to a new type of solvent-free 100% solid powder coating, which is made by mixing, crushing and sieving film-forming resins, additives, pigments, fillers, etc. Electrostatic spraying and baking film formation are required during the coating construction process. It has the characteristics of no solvent, no pollution, recyclable, environmental protection, saving energy and resources, reducing labor intensity and high mechanical strength of the coating film. [0003] There are two main categories of powder coatings: thermoplastic powder coatings and thermosetting powder coatings. Thermosetting powder coating refers to the use of thermosetting resin as a film-forming substance, adding a curing agent for cross-linking reaction and hea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/10C09D5/03C09D5/18C09D7/61C09D7/62C09D7/63C09D7/65
CPCC09D163/10C08L2201/02C08L2205/035C09D5/033C09D5/18C08L67/04C08L93/04C08K13/06C08K9/02C08K3/346C08K7/12C08K5/405
Inventor 张金龙田宝柱邢明阳王灵芝雷菊英
Owner SUZHOU JUKANG NEW MATERIAL TECH
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