High temperature resistant secondary sintering curing type powdery coating
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A secondary sintering and powder coating technology, applied in the coating field, can solve the problems of damage, no published patent documents, and no coating protection effect, and achieves increased production cost, good practicability and energy saving, and excellent adhesion performance. Effect
Inactive Publication Date: 2013-05-01
TIANJIN XIANGSHENG NEW MATERIALS CO LTD
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[0002] In my country's industrial production, there are some high-temperature, high-humidity, high-corrosion production equipment, such as metallurgy, petroleum, aviation, chemical industry, medicine, food and other industries. Their production equipment may use turbine blades, gas turbines, compressors, engines, Biofuel heating systems, boiler combustion systems, overheating pipes, incinerator pipes and walls, barbecue grills, heaters, high-power lighting shells, heating pipes, hot stoves, automobile mufflers, brake pads for vehicles, ovens, high-temperature furnaces, Motorcycle exhaust pipes, chimneys and other high-temperature-resistant equipment, these equipment have been operating in a high-temperature and high-corrosion environment for a long time, the corrosion is very serious and rapid, and some special materials are needed to meet the requirements of this working condition. Ordinary paint will fall off after one or two months of brushing, and even some high-temperature environments will be damaged immediately, and the protective effect of the coating cannot be achieved at all.
[0003] In addition, my country's open-air chimneys, wind power blades and pipe piles, trucks, construction machinery, motorcycle engine casings and exhaust pipes have very high operating temperatures, and it is difficult for general coatings to meet such harsh environmental requirements. For this reason, some Coating varieties with high temperature resistance, high wear resistance and high surface hardness are urgently needed
[0004] Through searching, no published patent documents identical with the application of the present invention have been found
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[0022] The present invention will be further described in detail below through the specific examples, the following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention with this.
[0023] A high temperature resistant secondary winding solidification type powder coating, its raw material components and parts by weight are respectively:
[0024]
[0025]
[0026] The preparation method is:
[0027] 1. Mix mica powder, quasi-spherical silica powder, low-melting glass powder, silane coupling agent, polyether-modified siloxane, high-temperature pigment (silicon carbide powder), strontium aluminum phosphate, and ultra-fine aluminum powder in proportion by weight Weigh and add to the mixer for pretreatment, stir and mix at low speed for 30 minutes, seal and mature for 48 hours;
[0028] 2. Pour Silres605 (wacker, curing agent B1530) into the mixer according to the weight ratio, dry mix and stir at high speed for 8-10 m...
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Abstract
The invention relates to a high temperature resistant secondary sintering curing type powdery coating. The coating comprises the following components, by weight, 400-500 parts of a Silres605 resin, 12-26 parts of a B1530 curing agent, 60-100 parts of mica powder, 80-125 parts of torispherical silicon powder, 60-120 parts of low-melting-point glass micro-powder, 3-5 parts of a silane coupling agent, 8.5-10 parts of polyether modified siloxane, 24-60 parts of silicon carbide powder, 40-70 parts of strontium aluminum phosphate, and 25-40 parts of ultrafine aluminum powder. An organic resin coat is formed through the primary curing at a temperature of 160-250DEG C for 30min, and a secondary sintering curing reaction is carried out because of the use in a high temperature (above 300DEG C) environment to form a hard and compact inorganic sintering coat (organic components crack and volatilize), so the powdery coating has the performances of a common coating, and also has the characteristics of heat resistance, corrosion resistance, weather resistance and the like.
Description
technical field [0001] The invention belongs to the field of coatings, and relates to high-temperature coatings, in particular to a high-temperature-resistant secondary sintering-curing powder coating. Background technique [0002] In my country's industrial production, there are some high-temperature, high-humidity, high-corrosion production equipment, such as metallurgy, petroleum, aviation, chemical industry, medicine, food and other industries. Their production equipment may use turbine blades, gas turbines, compressors, engines, Biofuel heating systems, boiler combustion systems, overheating pipes, incinerator pipes and walls, barbecue grills, heaters, high-power lighting shells, heating pipes, hot stoves, automobile mufflers, brake pads for vehicles, ovens, high-temperature furnaces, Motorcycle exhaust pipes, chimneys and other high-temperature-resistant equipment, these equipment have been operating in a high-temperature and high-corrosion environment for a long time, t...
Claims
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