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High-residual-strength phenolic flame-retardant system glass fiber reinforced plastic material and preparation method thereof

A technology of residual strength and glass fiber reinforced plastic, which is applied in the field of high residual strength phenolic flame retardant system glass fiber reinforced plastic material and its preparation field, can solve the problems of low residual strength at high temperature and easy to burn, and achieve high safety, good flame retardancy and simple operation. Effect

Active Publication Date: 2020-06-23
WUHAN UNIV OF TECH
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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 above-mentioned technical deficiencies, propose a high residual strength phenolic flame retardant system FRP material and its preparation method, and solve the technical problems that the phenolic FRP material in the prior art is easy to burn and has low residual strength at high temperature

Method used

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  • High-residual-strength phenolic flame-retardant system glass fiber reinforced plastic material and preparation method thereof
  • High-residual-strength phenolic flame-retardant system glass fiber reinforced plastic material and preparation method thereof

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preparation example Construction

[0026] like figure 1 , the second aspect of the present invention provides a method for preparing a high residual strength phenolic flame retardant system FRP material, comprising the following steps:

[0027] S1: Evenly mix phenolic resin, modified siloxane resin, glass powder, graphite, white carbon black, curing agent and accelerator to obtain component A;

[0028] S2: Provide E glass fiber as component B, make component B and component A molded in the mold by hand lay-up, and then obtain high residual strength phenolic flame retardant system FRP material after curing and demoulding.

[0029] The preparation method of the high residual strength phenolic flame retardant system FRP material provided by the second aspect of the present invention is used to prepare the high residual strength phenolic flame retardant system FRP material provided by the first aspect of the present invention.

[0030] Preferably, the specific steps to obtain component A are:

[0031] (1) uniform...

Embodiment 1

[0037] This embodiment provides a high residual strength phenolic flame retardant system FRP material, including the following components:

[0038] 10g of phenolic resin, 10g of epoxy-modified siloxane resin, 1.2g of glass powder, 0.2g of graphite, 0.1g of white carbon black, 0.2g of p-toluenesulfonic acid, 0.2g of urotropine, and 60g of E glass fiber.

[0039] The preparation method is as follows:

[0040] (1) Add 10 g of phenolic resin and 0.2 g of p-toluenesulfonic acid into a beaker, stir well, then add 0.2 g of urotropine and 10 g of epoxy-modified siloxane resin, stir well for later use, and obtain the first mixture.

[0041] (2) 1.2 g of glass powder, 0.2 g of graphite, and 0.1 g of white carbon black were evenly stirred to obtain a second mixture.

[0042] (3) Add the above-mentioned second mixture to the above-mentioned first mixture, and stir evenly to obtain component A.

[0043] (4) Provide 60g of E glass fiber with a length of 11-12cm, lay E glass fiber and comp...

Embodiment 2

[0045] This embodiment provides a high residual strength phenolic flame retardant system FRP material, including the following components:

[0046] 13.1g of phenolic resin, 8.7g of epoxy-modified siloxane resin, 2.2g of glass powder, 0.44g of graphite, 0.11g of white carbon black, 0.22g of p-toluenesulfonic acid, 0.22g of urotropine, and 60g of E glass fiber.

[0047] The preparation method is as follows:

[0048] (1) Add 13.1g of phenolic resin and 0.22g of p-toluenesulfonic acid to the beaker, after stirring well, add 0.22g of urotropine and 8.7g of epoxy-modified siloxane resin successively, stir well for later use, and obtain the first mixture .

[0049] (2) 2.2 g of glass powder, 0.44 g of graphite, and 0.11 g of white carbon black were evenly stirred to obtain a second mixture.

[0050] (3) Add the above-mentioned second mixture to the above-mentioned first mixture, and stir evenly to obtain component A.

[0051] (4) Provide 60g of E glass fiber with a length of 11-12cm...

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Abstract

The invention discloses a high-residual-strength phenolic flame-retardant system glass fiber reinforced plastic material and a preparation method thereof. The high-residual-strength phenolic flame-retardant system glass fiber reinforced plastic material is prepared from the following components in parts by weight: 20-30 parts of a component A and 60-70 parts of a component B, wherein in the component A, the mass ratio of phenolic resin to modified siloxane resin to glass powder to graphite to white carbon black to a curing agent to an accelerant is 1 to (0.4 to 1.1) to (0.1 to 0.2) to (0.01 to0.08) to (0.005 to 0.01) to (0.01 to 0.02) to (0.01 to 0.02); the B component is E glass fiber. According to the invention, the phenolic resin, the modified siloxane resin, the glass powder, the graphite, the white carbon black, the curing agent, the accelerant and the E glass fiber are used as raw materials in a matching manner, so that the obtained high-residual-strength phenolic flame-retardant system glass fiber reinforced plastic material has better high-temperature resistance and flame retardance, the oxygen index exceeds 60%, and the high-temperature residual strength can reach 72 MPa.The preparation method of the high-residual-strength phenolic flame-retardant system glass fiber reinforced plastic material provided by the invention is simple to operate and high in safety.

Description

technical field [0001] The invention relates to the technical field of flame retardant glass fiber reinforced plastic materials, in particular to a high residual strength phenolic flame retardant system glass fiber reinforced plastic material and a preparation method thereof. Background technique [0002] FRP materials generally refer to reinforced plastics that use unsaturated polyester resin, epoxy resin and phenolic resin as a matrix, and glass fiber or its products as reinforcement materials, and have developed rapidly in the construction industry. However, its disadvantages are that the existing FRP materials have poor heat resistance, are easy to burn, and their strength is significantly reduced after high temperature ablation. In some escape passages using FRP materials, once a fire occurs, FRP materials are easily ablated, resulting in insufficient strength to support personnel to escape and firefighters to enter, posing a great safety hazard. Therefore, it is of gr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/06C08L83/06C08K13/04C08K7/26C08K3/04C08K3/40C08K7/14
CPCC08K2201/004C08L61/06C08L83/06C08L2201/02C08K13/04C08K7/26C08K3/04C08K3/40C08K7/14
Inventor 冀运东朱友朝
Owner WUHAN UNIV OF TECH
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