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A kind of reactive flame retardant unsaturated polyester resin for glass fiber reinforced plastic matrix

A reactive flame retardant, polyester resin technology, applied in the field of polyester resin, can solve the problems of serious hidden dangers in life and property safety, small specific gravity, and inability to meet requirements, etc.

Active Publication Date: 2020-09-29
安徽汇创新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the general unsaturated polyester resin has excellent chemical corrosion resistance and mechanical properties after being reinforced by glass fiber, and the specific gravity is relatively small, but due to the high flammability of unsaturated polyester resin, and in the combustion process A large amount of smoke particles and harmful pyrolysis volatiles are released, which poses a serious hidden danger to the safety of human life and property, and also limits the application of unsaturated polyester in certain fields
Therefore, when the general unsaturated polyester resin is applied to the matrix material of FRP, when it is used in fields with high flame retardancy requirements such as building materials, ships, vehicles, and home appliances, it must not meet the requirements.

Method used

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  • A kind of reactive flame retardant unsaturated polyester resin for glass fiber reinforced plastic matrix
  • A kind of reactive flame retardant unsaturated polyester resin for glass fiber reinforced plastic matrix
  • A kind of reactive flame retardant unsaturated polyester resin for glass fiber reinforced plastic matrix

Examples

Experimental program
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Effect test

Embodiment 1

[0020] A reactive flame-retardant unsaturated polyester resin for a glass fiber reinforced plastic matrix. The raw materials include: 20 parts of maleic anhydride, 20 parts of phthalic anhydride, 10 parts of DOPO-MA, and 15 parts of ethylene glycol in parts by weight. 10 parts, 10 parts of propylene glycol, 35 parts of diethylene glycol, 15 parts of phosphorus-containing vinyl monomer, 0.2 part of hydroquinone, 0.1 part of dicumyl peroxide;

[0021] Wherein, the DOPO-MA is prepared by the following method: under the condition of nitrogen protection, 50 parts by weight of DOPO are dissolved in toluene, and after the temperature is raised to 100°C, 20 parts of maleic anhydride is added into the THF solution , keep stirring and react for 24h, remove the solvent, wash with xylene, and dry to obtain the DOPO-MA;

[0022] The phosphorus-containing vinyl monomer is prepared by the following method: under the protection of nitrogen, fumaric acid and 1,4-butanediol with a molar ratio o...

Embodiment 2

[0025] A reactive flame-retardant unsaturated polyester resin for a glass fiber reinforced plastic matrix. The raw materials include: 30 parts of maleic anhydride, 10 parts of phthalic anhydride, 20 parts of DOPO-MA, 5 parts of ethylene glycol in parts by weight 20 parts, 20 parts of propylene glycol, 25 parts of diethylene glycol, 25 parts of phosphorus-containing vinyl monomers, 0.02 parts of tert-butylcatechol, 1 part of dibenzoyl peroxide;

[0026] Wherein, the DOPO-MA is prepared by the following method: under the condition of nitrogen protection, 55 parts by weight of DOPO are dissolved in toluene, and after the temperature is raised to 90°C, a THF solution in which 25 parts of maleic anhydride is dissolved is added. , keep stirring and react for 20h, remove the solvent, wash with xylene, and dry to obtain the DOPO-MA;

[0027] The phosphorus-containing vinyl monomer is prepared by the following method: under the protection of nitrogen, fumaric acid and 1,4-butanediol wi...

Embodiment 3

[0030]A reactive flame-retardant unsaturated polyester resin for a glass fiber reinforced plastic matrix. The raw materials include: 25 parts of maleic anhydride, 15 parts of phthalic anhydride, 15 parts of DOPO-MA, and 10 parts of ethylene glycol in parts by weight. part, 15 parts of propylene glycol, 30 parts of diethylene glycol, 20 parts of phosphorus-containing vinyl monomer, 0.1 part of p-hydroxyanisole, 0.5 part of 1,1-di(tert-butylperoxy)cyclohexane;

[0031] Wherein, the DOPO-MA is prepared by the following method: under the condition of nitrogen protection, 52 parts of DOPO are dissolved in toluene in parts by weight, and after the temperature is raised to 95°C, a THF solution in which 22 parts of maleic anhydride is dissolved is added. , keep stirring and react for 22h, remove the solvent, wash with xylene, and dry to obtain the DOPO-MA;

[0032] The phosphorus-containing vinyl monomer is prepared by the following method: under the protection of nitrogen, fumaric ac...

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Abstract

The invention discloses reaction type flame-retardant unsaturated polyester resin for a glass fibre reinforced plastic matrix. The reaction type flame-retardant unsaturated polyester resin is preparedfrom the following raw materials in parts by weight: 20-30 parts of maleic anhydride, 10-20 parts of phthalic anhydride, 10-20 parts of DOPO-MA, 5-15 parts of glycol, 10-20 parts of propylene glycol,25-35 parts of diethylene glycol, 15-25 parts of a phosphor-containing vinyl monomer, 0.02-0.2 part of a polymerization inhibitor and 0.1-1 part of an initiator. The reaction type flame-retardant unsaturated polyester resin for glass fibre reinforced plastic matrix further can effectively improve flame resistance while keeping excellent processability.

Description

technical field [0001] The invention relates to the technical field of polyester resins, in particular to a reactive flame-retardant unsaturated polyester resin for glass fiber reinforced plastic substrates. Background technique [0002] Polyester resin can be divided into two types: one is saturated polyester resin, which has no non-aromatic unsaturated bonds in its molecular structure, and is a thermoplastic resin. The other is unsaturated polyester resin, which contains non-aromatic unsaturated bonds in its molecular structure, has chemical thickening properties, and can be used to initiate cross-linking reactions with initiators to become a thermosetting plastic. Unsaturated polyester resin has low mechanical properties after curing. If it is reinforced with glass fiber, it can form a material with many excellent properties such as light weight, high strength, chemical corrosion resistance, and electrical insulation, commonly known as FRP. [0003] Although the general ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/692C08F283/01C08F230/02
CPCC08F283/01C08G63/6928C08F230/02
Inventor 周飞任旭明汤明明
Owner 安徽汇创新材料有限公司
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