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Unsaturated polyester glass fibre 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 its preparation, and can solve the problems of low mechanical strength

Active Publication Date: 2014-01-08
SICHUAN DONGFANG INSULATING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the disadvantages of low mechanical strength of unsaturated polyester resin glass fiber molded board in the above-mentioned prior art, and provide a kind of unsaturated polyester glass fiber cloth laminated board and its preparation method

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0054] Preparation of the first part of the pretreatment cloth

[0055] Raw materials used:

[0056] 50%~52% styrene solution of isophthalic or orthophthalic or mixed isophthalic and orthophthalic unsaturated polyester resin with a viscosity of 1300~1600mPa·S, 70% styrene solution of saturated polyester resin , 40% polyvinyl acetate styrene solution, non-alkali plain glass fiber cloth, non-alkali twill glass fiber cloth, and benzopinacol silyl ether are all general-purpose chemical products purchased on the market.

Embodiment 1-1

[0058] 540kg non-alkali plain glass fiber cloth is squeezed and dip-coated from 45kg of styrene solution of 50% o-phthalic unsaturated polyester resin with a viscosity of 1300mPa·S, 8kg of 70% of viscosity of 600-1000mPa·S The styrene solution of saturated polyester resin, the styrene solution of 6kg40% polyvinyl acetate and the glue solution that 1kg benzopinacol silyl ether are formed, make 600kg pretreatment cloth.

Embodiment 1-2

[0060] Squeeze and dip 540kg non-alkali plain glass fiber cloth through the glue solution, from 45kg of styrene solution of 51% isophthalic unsaturated polyester resin with viscosity of 1600mPa·S, 8kg of 70% saturated polyester resin with viscosity of 600~1000mPa·S 600kg of pretreated cloth is made of a styrene solution of type polyester resin, 6kg of 40% polyvinyl acetate styrene solution and 1kg of benzopinacol silyl ether.

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Abstract

The invention discloses an unsaturated polyester glass fibre cloth laminated board. The unsaturated polyester glass fibre cloth laminated board is characterized by being formed by more than one layer of overlapped unsaturated polyester glass fibre cloth prepreg through hot pressing, wherein each layer of unsaturated polyester glass fibre cloth prepreg is formed by one layer of glass fibre cloth to be pretreated and resin paste coating two sides of the glass fibre cloth to be pretreated. A preparation method of the unsaturated polyester glass fibre cloth laminated board comprises the following steps: preparing the glass fibre cloth to be pretreated, preparing the resin paste, and preparing the unsaturated polyester glass fibre cloth laminated board through hot pressing. According to the invention, the unsaturated polyester glass fibre cloth laminated board has the characteristics of high mechanical strength, halogen-free flame retardance, low shrinking percentage and the like, and is particularly applicable to components with high-strength insulation structures of motors, electrical appliances, high-tension power transmission and transformation equipment and the like.

Description

technical field [0001] The invention belongs to layered products and its preparation, and relates to an unsaturated polyester glass fiber cloth laminated board and its preparation method. 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 material glass fiber mat and chopped glass fiber after heating Pressed molding compound (SMC for short). Usually the formula of unsaturated polyester resin glass fiber reinforced molding compound is composed of unsaturated polyester resin, polystyrene styrene solution (polystyrene content 40%), aluminum hydroxide or / an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/04B32B27/06B32B27/36B32B27/30B32B17/04B32B37/06B32B37/10C08L67/06C08L67/00C08L31/04C08K3/22C08K5/098
Inventor 许自贵李建学邓志威李志强
Owner SICHUAN DONGFANG INSULATING MATERIAL
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