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Unsaturated polyester glass fiber reinforced molding compound and application thereof

A polyester glass fiber, unsaturated technology, applied in the direction of plastic/resin/wax insulators, organic insulators, etc., can solve the problem of not giving the formula or preparation method of unsaturated polyester glass fiber reinforced molding compound and its application, etc., Achieve outstanding aging resistance, outstanding mechanical properties, and high mechanical strength.

Inactive Publication Date: 2012-06-20
SHANGHAI MUNICIPAL ELECTRIC POWER CO +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Moreover, in the field of insulator manufacturing, the formulation or preparation method and application of unsaturated polyester glass fiber reinforced molding compound have not been given.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Disperse 0.2 parts (weight components) of 2,4,6-trimethylbenzoyl-diphenylphosphine oxide (initiator) in 28 parts of hydroxyl-terminated unsaturated polyester resin (in the main material), stir and dissolve Finally, add 4 parts of talcum powder (filler), 28 parts of aluminum hydroxide powder (flame retardant insulating agent), 0.3 parts of hexamethylphosphonic acid triamide (light stabilizer), 2 parts of polyurethane thickener (thickener) And 0.5 part of zinc stearate (release agent), obtain unsaturated polyester resin paste after high-speed stirring. The unsaturated polyester resin paste is impregnated with 25 parts of chopped E-glass fiber roving (reinforcing material) on the impregnation machine, and then the impregnated mixture is rolled and put into a special mold, at 140-150°C, constant temperature After baking for 10 to 20 minutes, it is solidified and formed to obtain an insulator.

[0029] Wherein, the polyurethane thickener is synthesized from polyethylene gly...

Embodiment 2

[0031] Disperse 0.3 parts (by weight) of ethyl 2,4,6-trimethylbenzoylphenyl phosphonate (initiator) in 29 parts of hydroxyl-terminated unsaturated polyester resin (in the main material), stir and dissolve Finally, add 3 parts of talcum powder (filler), 31 parts of aluminum hydroxide powder (flame retardant insulating agent), 0.5 part of hexamethylphosphonic acid triamide (light stabilizer), 4 parts of polyacrylic acid thickener (thickener agent) and 0.6 part of zinc stearate (release agent), after high-speed stirring, unsaturated polyester resin paste is obtained. The unsaturated polyester resin paste is impregnated with 26 parts of chopped E-glass fiber roving (reinforcing material) on the impregnation machine, and then the impregnated mixture is put into a special mold after being rolled, and kept at a constant temperature of 140-150°C After baking for 10 to 20 minutes, it is solidified and formed to obtain an insulator.

[0032] Wherein, the polyacrylic acid thickener is a...

Embodiment 3

[0034] The tert-butyl peroxybenzoate (initiator) of 0.8 parts (weight components) is dispersed in 32 parts of hydroxyl-terminated unsaturated polyester resins (in the main ingredient), after stirring and dissolving, add 5 parts of talcum powder (filler), 33 parts of aluminum hydroxide powder (flame retardant insulating agent), 0.8 part of hexamethylphosphonic acid triamide (light stabilizer), 4 parts of polyurethane thickener (thickener) and 0.7 part of zinc stearate (release agent ), after high-speed stirring, unsaturated polyester resin paste was obtained. The unsaturated polyester resin paste is impregnated with 28 parts of chopped E-glass fiber roving (reinforcing material) on the impregnation machine, and then the impregnated mixture is rolled and put into a special mold, at 140-150°C, constant temperature After baking for 10 to 20 minutes, it is solidified and formed to obtain an insulator.

[0035] Wherein, the polyurethane thickener is synthesized from polyethylene gl...

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PUM

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Abstract

The invention relates to an unsaturated polyester glass fiber reinforced molding compound, which is characterized in that the unsaturated polyester glass fiber reinforced molding compound comprises the following components by weight: 26-39 parts of unsaturated polyester resin, 0.5-0.8 parts of releasing agent, 1.5-5 parts of thickener, 0.2-1 parts of initiator, 0.3-1 parts of light stabilizer, 28-38 parts of aluminum hydroxide powder, 3-8 parts of talcum powder and 25-30 parts of reinforcing material. And the invention also provides application of the unsaturated polyester glass fiber reinforced molding compound in the low-voltage apparatus field. An insulator processed by the formulation provided by the invention has high mechanical strength, heat resistance, high-voltage resistance, insulation resistance and flame resistance, and has outstanding ageing resistance from the points of the whole performance and comprehensive performance.

Description

technical field [0001] The invention belongs to the field of glass fiber reinforced molding compound and its application, and in particular relates to an unsaturated polyester glass fiber reinforced molding compound and its application, which is mainly used in the field of low-voltage power distribution. Background technique [0002] From the second half of the nineteenth century onwards, when erecting transmission lines, the only insulating materials suitable for high voltages were ceramics and glass. In the 1940s, due to the advent of polymer materials, ceramics and glass were no longer the preferred insulator materials, and European and American countries began to study polymer insulators. The physical properties, electrical properties, long-term reliability, and optimal shape of electrical insulators have since been studied, and productivity has been continuously improved. At this time, due to the advantages of unsaturated polyester glass fiber reinforced molding compou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/06C08K13/04C08K7/14C08K3/22C08K3/34H01B3/47
Inventor 贲飞张刚强秦岭张宇俞来意蔡翊情潘捷方龙华
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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