阅读说明：本技术 改性硅双酚聚碳酸酯的粉末涂料 (Powder coating of modified silicon bisphenol polycarbonate ) 是由 刘振 于 2018-09-06 设计创作，主要内容包括：本发明涉及一种改性硅双酚聚碳酸酯的粉末涂料,其特征在于其组成原料的重量份为：聚碳酸酯改性硅溶胶48-55、双酚A型聚碳酸酯1.5-2.0、4,4-二氨基二苯基甲烷12-15、磷酸三丁酯0.8-1.2、氨丙基三乙氧基硅烷3.3-3.8、超细硫酸钡15-25、聚丙烯酰胺6.0-8.0、有机硅助剂1.1-1.3和陶瓷渣粉末25-30。(The invention relates to a modified silicon bisphenol polycarbonate powder coating which is characterized by comprising the following raw materials in parts by weight: 48-55 parts of polycarbonate modified silica sol, 1.5-2.0 parts of bisphenol A polycarbonate, 12-15 parts of 4, 4-diaminodiphenylmethane, 0.8-1.2 parts of tributyl phosphate, 3.3-3.8 parts of aminopropyltriethoxysilane, 15-25 parts of superfine barium sulfate, 6.0-8.0 parts of polyacrylamide, 1.1-1.3 parts of organic silicon assistant and 25-30 parts of ceramic slag powder.)

1. The powder coating of the modified silicon bisphenol polycarbonate is characterized by comprising the following raw materials in parts by weight: 48-55 parts of polycarbonate modified silica sol, 1.5-2.0 parts of bisphenol A polycarbonate, 12-15 parts of 4, 4-diaminodiphenylmethane, 0.8-1.2 parts of tributyl phosphate, 3.3-3.8 parts of aminopropyltriethoxysilane, 15-25 parts of superfine barium sulfate, 6.0-8.0 parts of polyacrylamide, 1.1-1.3 parts of organic silicon assistant and 25-30 parts of ceramic slag powder.

2. The powder coating of modified silicon bisphenol polycarbonate of claim 1, characterized in that the powder coating comprises the following raw materials in parts by weight: bisphenol A polycarbonate 52, bisphenol A polycarbonate 1.8, 4-diaminodiphenylmethane 14, tributyl phosphate 1.0, aminopropyltriethoxysilane 3.5, superfine barium sulfate 15, polyacrylamide 7.0, organosilicon assistant 1.2 and ceramic slag powder 28.

Technical Field

The invention relates to the field of powder coatings, in particular to a modified silicon bisphenol polycarbonate powder coating and a preparation method thereof.

Background

With the continuous and stable growth of economy in China and the continuous improvement of the living standard of people, the powder coating business of metal components is continuously increased, particularly in the industries of household appliances, instruments and meters, traffic facilities, aluminum profiles, various vehicles, daily hardware and the like, the powder coating can provide excellent anticorrosion protection and decorative performance for metals, but because the pollution resistance of the existing coating used in the fields is not ideal, various types of dust, dirt and even oil stains are often attached to the coating; the anti-sticking capability is not ideal, and the coating formed by the existing powder coating is easy to generate the phenomena of foaming, cracking, peeling and the like under the influence of natural conditions such as outdoor long-term exposure, rain and the like, so the mechanical property of the coating is not ideal.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide an oil-resistant bisphenol A polycarbonate powder coating and a preparation method thereof.

In order to achieve the purpose, the invention adopts the following technical scheme:

the powder coating of the modified silicon bisphenol polycarbonate is characterized by comprising the following raw materials in parts by weight: 48-55 parts of bisphenol A polycarbonate, 1.5-2.0 parts of bisphenol A polycarbonate, 12-15 parts of 4, 4-diaminodiphenylmethane, 0.8-1.2 parts of tributyl phosphate, 3.3-3.8 parts of aminopropyltriethoxysilane, 15-25 parts of superfine barium sulfate, 6.0-8.0 parts of polyacrylamide, 1.1-1.3 parts of organosilicon assistant and 25-30 parts of ceramic slag powder.

The powder coating of the modified silicon bisphenol polycarbonate is characterized by comprising the following raw materials in parts by weight: bisphenol A polycarbonate 52, bisphenol A polycarbonate 1.8, 4-diaminodiphenylmethane 14, tributyl phosphate 1.0, aminopropyltriethoxysilane 3.5, superfine barium sulfate 15, polyacrylamide 7.0, organosilicon assistant 1.2 and ceramic slag powder 28.

The preparation method of the modified silicon bisphenol polycarbonate powder coating is characterized by comprising the following steps:

(1) mixing bisphenol A polycarbonate, 4-diaminodiphenylmethane, tributyl phosphate, aminopropyl triethoxysilane, superfine barium sulfate and ceramic slag powder, and stirring at the temperature of 120-;

(2) weighing other raw materials according to the weight parts of the raw materials, mixing the other raw materials with the material in the step (1), then feeding the mixture into an extruder for granulation, cooling the mixture at the temperature of 130 ℃ and 140 ℃, and grinding the mixture to 40-50 mu m; stopping grinding and packaging.

The invention has the beneficial effects that:

according to the invention, ceramic slag powder is added as a filler, so that the hydrophobicity of the powder coating is greatly improved, and meanwhile, the dispersibility and compatibility of raw materials are improved by mixing bisphenol A type polycarbonate, 4-diaminodiphenylmethane, tributyl phosphate, aminopropyl triethoxysilane, superfine barium sulfate and ceramic slag powder, so that the coating property of the powder coating is improved, and a formed film is smooth.

Detailed Description