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Flame-retardant protective coating for bromocarbon acrylic acid printed circuit and preparation method thereof

A bromocarbon acrylic and printed circuit technology, applied in fire-resistant coatings, coatings, etc., can solve the problems that film-forming substances do not have flame-retardant effect, and it is difficult to improve the flame-retardant level of electrical appliances.

Inactive Publication Date: 2011-07-27
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing protective coatings for printed circuits all use thermoplastic acrylic as protective coatings, but the film-forming substances do not have flame retardant effect, and only play the role of glazing protection, so it is difficult to improve the flame retardant level of electrical appliances

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0012] Embodiment 1: This embodiment demonstrates the preparation method of bromocarbon acrylic acid printed circuit flame-retardant protective coating of the present invention.

[0013] Acrylate-2,4,6-tribromophenyl 40kg, butyl methacrylate 128kg, methyl methacrylate 16kg, styrene 32kg, acrylic acid 8kg, butyl acrylate 88kg and acrylate-2-ethylhexyl 8.0 kg is pre-mixed to obtain a mixed monomer; 120.0 kg of xylene and 356.8 kg of ethyl acetate are pre-mixed to obtain a mixed solvent; add 276.8 kg of a mixed solvent and 32 kg of a mixed monomer to the reactor, start stirring and be heated to a reflux state, and keep warm 30 minutes; then dissolve 2.88kg of the initiator in the remaining mixed monomer to obtain the mixed monomer containing the initiator, and add it to the high level tank; add the mixed monomer containing the initiator dropwise, and drop it in 120-150 minutes. Insulate for 30-60 minutes; dissolve 0.32kg of the remaining initiator in the remaining 200kg of mixed ...

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Abstract

The invention discloses a flame-retardant protective coating for a bromocarbon acrylic acid printed circuit and a preparation method thereof. The coating comprises the following compositions by mass percentage: 5.0 to 10.0 percent of 2,4, 6-tribromophenyl acrylate, 13.0 to 18.0 percent of butyl methacrylate, 0.5 to 4.0 percent of methyl methacrylate, 2.0 to 4.0 percent of styrene, 0.5 to 2.0 percent of acrylic acid, 8.0 to 12.0 percent of butyl acrylate, 0 to 2.0 percent of 2-ethyl hexyl acrylate, 15.0 percent of dimethylbenzene, 44.6 percent of ethyl acetate, and 0.4 percent of evocating agennt. The flame-retardant protective coating realizes the polymerization of Br element by introducing the flame-retardant element Br into a styrene-acrylic resin, overcomes the disadvantage of short time limit of additive type flame-retardant coatings, has good flame-retardant property as well as high breakdown voltage resistance and electrical insulating property, and also has the characteristics of light color, good gloss and color retention, easy construction, and strong decorativeness of thermoplastic acrylic acid resin coatings at the same time.

Description

technical field [0001] The invention relates to a coating composition, in particular to a bromocarbon acrylic acid printed circuit flame-retardant protective coating. Background technique [0002] Thermoplastic acrylic coatings have the advantages of light color, good gloss and color retention, good weather resistance, stable manufacturing process and convenient construction. They occupy an important position in the high decorative fields of household appliances, light industrial products and instruments, and have developed rapidly in recent years. . As a protective coating for printed circuits, it must have good electrical breakdown resistance and electrical insulation properties, and with the improvement of flame retardant requirements in the electrical industry, people are paying more and more attention to the flame retardant performance of protective coatings for printed circuits. [0003] Patent CN 1178237A uses bismaleimide modified rubber as the base material, introd...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/10C09D5/18
Inventor 杨保平崔定伟崔锦峰郭军红韩培亮刘诗鑫姚向明
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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