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Halogen-free anti-flaming transparent unsaturated polyester insulated dope and preparation method thereof

An insulating coating, unsaturated technology, used in polyester coatings, coatings, etc., to achieve the effect of improving weather resistance

Inactive Publication Date: 2008-05-28
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention focuses on solving the problems existing in the field of flame retardant technology of existing unsaturated polyester resins, so as to provide transparent unsaturated polyester insulating coatings with good flame retardant properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 60g of maleic anhydride, phthalic anhydride, and propylene glycol in a molar ratio of 1:1:2.2 were subjected to melt polycondensation, and 40g of styrene and 0.05g of p-phenylene were added to the obtained unsaturated polyester prepolymer during cooling. Diphenol, mixed evenly is unsaturated polyester resin.

[0022] With the above-mentioned unsaturated polyester resin of 80g, the resorcinol bis(diphenyl phosphate ester) of 9g, the butanol etherified amino resin of 5g, the methylphenyl silicone resin of 5g (the mole of organic group and silicon atom The ratio is 1.1, and the molar percentage of phenyl group is 80%), and 1 g of dicumyl peroxide is stirred and mixed at 40° C. for 0.5 hour, which is a halogen-free flame-retardant transparent unsaturated polyester insulating coating.

Embodiment 2

[0024] 60 g of maleic anhydride, phthalic anhydride, terephthalic acid, propylene glycol, and diethylene glycol in a molar ratio of 2:1:1:2.2:2 are subjected to melt polycondensation reaction to obtain unsaturated polyester Add 40g of vinyl toluene and 0.1g of hydroquinone during the cooling process of the prepolymer, and mix well to form an unsaturated polyester resin.

[0025] With the above-mentioned unsaturated polyester resin of 50g, the oligomeric bisphenol A bis(diphenyl phosphate ester) of 5g, the butanol etherified amino resin of 13g, the methylphenyl silicone resin of 30g (organic group and silicon atom The molar ratio is 1.6, and the molar percentage of phenyl group is 30%), 2g of 1,1-bis(tert-butyl peroxy)-3,3,5-trimethylcyclohexane are stirred and mixed at 10°C After 3 hours, it is a halogen-free flame-retardant transparent unsaturated polyester insulating coating.

Embodiment 3

[0027] 60g of maleic anhydride, phthalic anhydride, propylene glycol, and dipropylene glycol in a molar ratio of 1:1:1.2:1 are subjected to melt polycondensation, and 40g of unsaturated polyester prepolymer is added during the cooling process. Methyl methacrylate, 0.2g hydroquinone, mixed evenly is unsaturated polyester resin.

[0028] The above-mentioned unsaturated polyester resin of 66g, the triphenyl phosphate of 15g, the methanol etherified amino resin of 5g, the methylphenyl silicone resin of 13.5g (the molar ratio of organic group and silicon atom is 1.3, and phenyl group occupies organic base molar percentage is 50%), 0.5g of ethyl-3,3-bis(tert-butylperoxy)butyrate was stirred and mixed at 20°C for 1 hour, which was a halogen-free flame-retardant transparent unsaturated polyester insulating paint.

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PUM

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Abstract

The invention discloses insulating paint of non-toxic fire retardant transparent unsaturated polyester and process for preparation. The paint is composed of the following components which are based on quanlified latex, including 50-80 parts of unsaturated polyester, 5-30 parts of methyl phenylsilicone resin, 5-30 parts of phosphate flame retardant, 5-30 parts of etherified amino resins and 0.5-4 parts of evocating agent. The insulating paint of non-toxic fire retardant transparent unsaturated polyester can be achieved by stirring and mixing the components for 0.5-3 hours under 10 DEG C to 40 DEG C. The external appearance of the insulating paint of fire retardant unsaturated polyester of the invention is transparent, the oxygen index of the solidifying product can be increased to 27% from 19%, and the vertical flame passes UL-94 V-0 level. The heat-resistant property and the weather ability of the paint are remarkably improved, and the paint can be used for the insulating treatment of various dry-type transformer windings and machine windings.

Description

technical field [0001] The invention relates to an unsaturated polyester coating, in particular to a halogen-free flame-retardant transparent unsaturated polyester insulating coating and a preparation method thereof. Background technique [0002] Unsaturated polyester resin (Unsaturated Polyester Resins, referred to as UPR) is a linear prepolymerization of glycol and unsaturated dibasic anhydride or unsaturated dicarboxylic acid, saturated dibasic anhydride or saturated dicarboxylic acid melt polycondensation Under the action of heating, light, high-energy radiation and initiators, it is copolymerized with vinyl monomers, cross-linked and cured into a thermosetting resin with a network structure. Unsaturated polyester resin has been favored by people for a long time because of its excellent formability and good comprehensive performance. It is widely used in the fields of construction, shipbuilding, automobile industry, chemical equipment, electronic appliances and sporting ...

Claims

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Application Information

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IPC IPC(8): C09D167/06C09D5/25
Inventor 赵建青华誉刘述梅叶华
Owner SOUTH CHINA UNIV OF TECH
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