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Glass reinforced plastic and preparation method thereof

A technology of glass fiber reinforced plastics and glass fiber cloth, applied in the field of composite materials, can solve the problems of increasing resin density, difficulty in meeting the requirements of national standards, and insufficient strength

Inactive Publication Date: 2014-01-08
珠海正一复合材料制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The currently used FRP battery shell with vinyl resin as the matrix is ​​not easy to meet the requirements for voltage resistance, and the strength is not enough, so it is difficult to meet the requirements of the national standard; and if imported vinyl resin is used, it is necessary to improve the molding process during processing. Pressure, increasing the resin density, will bring about an increase in the overall production cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0044] The invention also discloses a preparation method of the above-mentioned glass fiber reinforced plastic, which includes the following steps: under the action of a peroxide initiator, after curing styrene, silicon dioxide airgel, vinyl resin and glass fiber cloth, the glass fiber reinforced plastic is obtained; The mass ratio of the silica airgel to the vinyl resin is (0.02-0.5):1.

[0045] All the raw materials of the present invention have no special limitation on their sources, they can be purchased in the market.

[0046] In the present invention, first, styrene and silica airgel are mixed and emulsified to obtain the first mixture; the mass ratio of styrene to silica airgel is preferably (1-5): 1, more preferably (1.5 ~4.5): 1; the silica airgel is preferably a hydrophobic silica airgel; the particle size of the silica airgel is d, and the d is preferably greater than or equal to 80 mesh, more preferably is greater than or equal to 150 mesh; the pore diameter of th...

Embodiment 1

[0060] First take by weighing 80 meshes of particle size, 5nm pore diameter, 8g of hydrophobic silica airgel powder with a porosity of 70%, 8g of styrene and 400g of domestic vinyl resin with a solid content of 40%, and then the styrene Mix and emulsify with the silica airgel at 20° C. with a high-shear homogeneous mixer at a speed of 4000 rpm for 1 minute to obtain the first mixture.

[0061] Then, the above-mentioned first mixture and 400 g of the above-mentioned vinyl resin were stirred and mixed for 10 minutes at 20° C. with a common stirrer at a speed of 200 rpm to obtain a second mixture. Then 4 g of cyclohexanone peroxide was added to the second mixture to obtain a third mixture.

[0062] Finally, the weight of 500g is 800g / m 2 The alkali-free glass fiber cloth is put into the mold, and the mold is evacuated, and then the above-mentioned third mixture is pressurized and injected into the pre-vacuumized mold under a pressure of 1.0MPa, and it is cured at room temperatur...

Embodiment 2

[0065] First, weigh 16g of hydrophobic silica airgel powder with a particle size of 150 mesh, a pore diameter of 30nm, and a porosity of 80%, 32g of styrene and 400g of domestic vinyl resin with a solid content of 40%, and then mix the styrene Mix and emulsify with the silica airgel at 20° C. with a high-shear homogeneous mixer at a speed of 3000 rpm for 3 minutes to obtain the first mixture.

[0066] Then, the above-mentioned first mixture and 400 g of the above-mentioned vinyl resin were stirred and mixed for 30 minutes at 20° C. with a common stirrer at a speed of 300 rpm to obtain a second mixture. Then 6 g of cyclohexanone peroxide was added to the second mixture to obtain a third mixture.

[0067] Finally, the weight of 500g is 800g / m 2 The alkali-free glass fiber cloth is put into the mold, and the mold is evacuated, and then the above-mentioned third mixture is injected into the pre-vacuumized mold under the pressure of 2.0MPa, and it is cured at room temperature. Aft...

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Abstract

The invention provides glass reinforced plastic and a preparation method thereof. The glass reinforced plastic comprises glass fiber cloth and a resin composition cured on the glass fiber cloth, wherein the resin composition comprises vinyl resin, silicon dioxide aerogel, styrene and a peroxide initiator; and the mass ratio of the silicon dioxide aerogel to the vinyl resin is (0.02-0.5):1. Under the effect of the peroxide initiator, the styrene, the silicon dioxide aerogel, the vinyl resin and the glass fiber cloth are cured to obtain the glass reinforced plastic. The glass reinforced plastic provided by the invention has high voltage resistance, mechanical property and corrosion resistance.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a glass fiber reinforced plastic and a preparation method thereof. Background technique [0002] FRP, that is, fiber-reinforced plastics, generally refers to reinforced plastics that use unsaturated polyester resin, epoxy resin, and phenolic resin as a matrix, and glass fibers or their products as reinforcing materials, also known as glass fiber-reinforced plastics. FRP has the advantages of light and hard, non-conductive, high mechanical strength, less recycling, and corrosion resistance, so it is widely used in various fields in industry. According to different substrates, FRP can be divided into unsaturated polyester FRP, epoxy FRP, and phenolic FRP. Due to the different types of resin matrix used, there are also great differences in the characteristics of FRP. [0003] Unsaturated polyester FRP is based on unsaturated linear thermosetting resin obtained by polyc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/00C08K7/14C08K3/36
Inventor 钱宇朱斌
Owner 珠海正一复合材料制品有限公司
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