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Unsaturated polyester glass fiber cloth laminated board and preparation method thereof

A technology of polyester glass fiber and glass fiber cloth, which is applied in the field of layered products and their preparation, can solve the problems of inability to meet technical performance requirements, low mechanical strength of glass fiber molding plates, etc., and achieves easy industrial expansion of production and mechanical strength. High, stable product quality effect

Active Publication Date: 2014-01-22
SICHUAN DONGFANG INSULATING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of SMC unsaturated polyester resin glass fiber molded board has low mechanical strength, its bending strength is less than 120MPa, and its impact strength (charpy, notch) is less than 70kJ / m 2 , cannot meet higher technical performance requirements

Method used

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  • Unsaturated polyester glass fiber cloth laminated board and preparation method thereof
  • Unsaturated polyester glass fiber cloth laminated board and preparation method thereof
  • Unsaturated polyester glass fiber cloth laminated board and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-1

[0047] Mix 162kg of 67% styrene solution of thickened dicyclopentadiene modified unsaturated polyester resin, 30kg of styrene solution of 70% saturated polyester resin with a viscosity of 600-1000mPa·S, 20kg of 40% poly Styrene solution of vinyl acetate, 320kg of aluminum hydroxide, 2kg of active magnesium oxide, 2.3kg of benzopinacol silyl ether, 10kg of titanium dioxide pigment paste, and 10kg of zinc stearate are put into a mixing tank at room temperature High-speed stirring for 10 minutes was mixed with 556.3kg resin paste.

Embodiment 1-2

[0049] Mix 162kg of 70% styrene solution of dicyclopentadiene modified unsaturated polyester resin, 60kg of styrene solution of 70% saturated polyester resin with a viscosity of 600-1000mPa·S, 30kg of 40% poly Styrene solution of vinyl acetate, 360kg of aluminum hydroxide, 3.5kg of activated magnesium oxide, 2.4kg of benzopinacol silyl ether, 12kg of titanium dioxide pigment paste, and 11kg of zinc stearate are put into the mixing tank at room temperature Under high-speed stirring for 10 minutes, 640.9kg resin paste was prepared.

Embodiment 1-3

[0051] 162kg of styrene solution of 68% thickening dicyclopentadiene modified unsaturated polyester resin, 40kg of styrene solution of 70% saturated polyester resin with a viscosity of 600-1000mPa·S, 40kg of 40% poly Styrene solution of vinyl acetate, 280kg of aluminum hydroxide, 2.5kg of activated magnesium oxide, 2.8kg of initiator (benzopinacol silyl ether: benzoyl tert-butyl peroxide = 1:3), 20kg Titanium dioxide pigment paste, 13kg of zinc stearate dropped into the mixing tank at room temperature and stirred at high speed for 10 minutes to be mixed with 560.3kg resin paste.

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Abstract

The invention discloses an unsaturated polyester glass fiber cloth laminated board and a preparation method thereof. The unsaturated polyester glass fiber cloth laminated board is characterized in that the board is formed by hot-pressing more than one layer of overlapped unsaturated polyester glass fiber cloth prepregs; and each layer of the unsaturated polyester glass fiber cloth prepregs comprises a layer of glass fiber cloth and resin paste, and the two surfaces of the glass fiber cloth are coated with the resin paste. The preparation method of the unsaturated polyester glass fiber cloth laminated board is as follows: a styrene solution of an unsaturated polyester resin, a styrene solution of a saturated polyester resin, a styrene solution of polyvinyl acetate, aluminium hydroxide, active magnesium oxide, an initiator, pigment paste and zinc stearate are mixed, so that resin paste is prepared; and the unsaturated polyester glass fiber cloth prepregs are prepared. With the adoption of the unsaturated polyester glass fiber cloth laminated board and the preparation method, the unsaturated polyester glass fiber cloth laminated board has the characteristics that the mechanical strength is high, halogen-free flame retardance is realized, the contraction rate is low, and the like. The unsaturated polyester glass fiber cloth laminated board is suitable for parts with high-strength insulation structures of motors, electrical appliances, high-tension power transmission and transformation equipment and the like.

Description

technical field [0001] The present invention belongs to layered products and their preparation. It relates to an unsaturated polyester glass fiber cloth laminated board and a preparation method thereof. The unsaturated polyester glass fiber cloth laminate of the invention is especially suitable for high-strength insulating structural parts of motors, electrical appliances, high-voltage power transmission and transformation equipment, and the like. Background technique [0002] In the prior art, the unsaturated polyester glass fiber molding board is generally made of resin paste made of unsaturated polyester resin, inorganic powder materials, initiators, etc., and reinforced glass fiber mat and random short glass fiber after heating Pressed molding compound (SMC for short). The formula of unsaturated polyester resin glass fiber reinforced molding compound is generally composed of unsaturated polyester resin, polystyrene styrene solution (polystyrene content 40%), aluminum h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/04B32B27/30B32B37/06C08L51/08C08K3/22C08K5/098C08F291/06C08F212/08
Inventor 许自贵邓志威李志强
Owner SICHUAN DONGFANG INSULATING MATERIAL
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