Coating composition, preparation method of coating composition, coating part, preparation method of coating part, and household appliance
A composition and coating technology, which is applied in the direction of coating, etc., can solve the problems of food contact safety hazards, unsightly appearance, poor adhesion, etc., and achieve the effects of food contact safety, good temperature resistance, and good adhesion
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[0047] The preparation raw materials of the coating composition include polysilazane, polysiloxane and colorant, and the polysilazane and polysiloxane undergo copolymerization reaction to form polysilazane-polysiloxane copolymer, so The coloring material is dispersed in polysilazane-polysiloxane copolymer.
[0048] The raw materials for the preparation of the coating composition of the technical solution of the present invention include polysilazane, polysiloxane and colorant, and the polysilazane and polysiloxane will undergo a copolymerization reaction to generate polysilazane-polysiloxane Copolymer, the polysilazane-polysiloxane copolymer has the advantages of high hardness, good adhesion and good temperature resistance, so that the coating made from the coating composition has high hardness, good adhesion and good temperature resistance The advantages. Moreover, the paint composition contains a colorant, so that the coating made from the paint composition also has a bette...
Embodiment 1
[0180] The preparation method of described coating composition comprises the following steps:
[0181] Provide preparation raw materials, the preparation raw materials include polysilazane, polysiloxane and titanium dioxide, wherein, the R of the polysilazane 1 is a hydrogen group, R 2 is a hydrogen group, R 3 is a hydrogen group, the polysilazane accounts for 60% of the mass percentage of the preparation raw material, and the R of the polysiloxane 4 is a hydrogen group, R 5 It is an alkene, the polysiloxane accounts for 37% of the mass percentage of the preparation raw materials, and the titanium dioxide accounts for 3% of the mass percentage of the preparation raw materials;
[0182] Put polysilazane and polysiloxane in the reactor, mix polysilazane and polysiloxane at a speed of 600 rpm, polysiloxane and polysiloxane undergo copolymerization reaction to form polysiloxane alkane-polysilazane copolymer.
[0183] Add titanium white to the polysiloxane-polysilazane copolym...
Embodiment 2
[0185] The preparation method of described coating composition comprises the following steps:
[0186] Provide preparation raw materials, the preparation raw materials include polysilazane, polysiloxane, barium sulfate, dibutyl ether and cyclohexanone, wherein, the R of the polysilazane 1 is aryl, R 2 is a hydrogen group, R 3 is an alkylamino group, the polysilazane accounts for 40% of the mass percentage of the preparation raw materials, and the R of the polysiloxane 4 is cycloalkane, R 5 is an alkylsiloxy group, the polysiloxane accounts for 30% of the mass percentage of the preparation raw materials, the barium sulfate accounts for 5% of the mass percentage of the preparation raw materials, and the dibutyl ether The range of the mass percentage of the raw materials for preparation is 20%, and the range of the mass percentage of the cyclohexanone for the raw materials for the preparation is 5%;
[0187] Put polysilazane and polysiloxane in the reactor, mix polysilazane a...
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Abstract
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