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A kind of high flame retardant epoxy resin composition

A technology of epoxy resin and composition, which is applied in the field of resin composition, can solve problems such as the influence of material properties, and achieve the effects of low cost, good thermal stability, and easy availability of raw materials

Active Publication Date: 2019-07-26
江苏世泽车业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although it has good flame retardant properties, as the amount added increases, it will have some adverse effects on the properties of the material itself

Method used

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  • A kind of high flame retardant epoxy resin composition
  • A kind of high flame retardant epoxy resin composition
  • A kind of high flame retardant epoxy resin composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A kind of highly flame-retardant epoxy resin composition, comprises following component by weight part:

[0049] 35 parts of bisphenol A epoxy resin

[0050] 20 parts of phenol novolak resin

[0051] 15 parts of benzophenone tetracarboxylic dianhydride

[0052] 0.5 parts of 2-methylimidazole

[0053] 10 parts of fluorine-containing DOPO derivative flame retardant

[0054] 10 parts of aluminum hydroxide with a particle size of 10 μm

[0055] The balance of butyl glycidyl ether.

[0056] Among them, the structural formula of the fluorine-containing DOPO derivative flame retardant is:

[0057]

[0058] Wherein, the synthetic steps of fluorine-containing DOPO derivative flame retardant are:

[0059] (1) Heat 15.0 g of biphenyl phosphoramidate and 6.2 g of 2,3,5,6-tetrafluoro-p-benzaldehyde in 126.9 g of ethanol at 75° C. for 6 hours. After the reaction, the intermediate product I reaction system;

[0060] (2) Add 13.0 g of DOPO to the reaction system containing i...

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Abstract

The invention relates to a resin composition and in particular relates to a high-flame-retarding epoxy resin composition. The high-flame-retarding epoxy resin composition is prepared from the following components in parts by weight: 30 to 45 parts of epoxy resin, 10 to 20 parts of phenol formaldehyde resin, 10 to 15 parts of a curing agent, 0.5 to 1 part of a curing accelerant, 5 to 10 parts of a DOPO (9,10-bihydro-9-oxa-10-phosphaphenanthrene-10-oxide) derivative flame retardant containing silicon and fluorine, 5 to 15 parts of filling and the balance of a diluting agent. According to the high-flame-retarding epoxy resin composition provided by the invention, the DOPO derivative flame retardant containing silicon and fluorine is added into a composition system; on the one hand, the flame retardant has a relatively high surface transferring property; a high flame-retarding membrane is formed on the surface of a base material, so that the high-flame-retarding epoxy resin composition has high flame-retarding property, low smoke, low toxin and no corrosive gas; and on the other hand, when the content of the flame retardant reaches 5 percent to 10 percent, the content of cured products can reach UL94, grade V-0.

Description

technical field [0001] The invention relates to a resin composition, in particular to a highly flame-retardant epoxy resin composition. Background technique [0002] Flame retardants are added to polymeric materials (synthetic or natural) to increase the flame retardant properties of the polymer. Depending on their composition, flame retardants can act chemically (for example by releasing nitrogen as a blowing agent) or physically (for example by generating a foam cover) in solid, liquid or gaseous phase. Flame retardants interfere during certain stages of the combustion process, such as during heating, decomposition, ignition or flame spread. There remains a need for flame retardant compositions with improved properties that can be used in different polymer matrices. There is a particular need for flame retardant compositions suitable for use in the production of glass fiber reinforced epoxy prepregs, laminates and printed circuit boards and printed wiring boards derived ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C08L61/06C08K5/5399C08K3/22C08K3/34
CPCC08K2201/003C08K2201/014C08L63/00C08L2201/02C08L2201/08C08L61/06C08K5/5399C08K2003/2227C08K3/34
Inventor 徐再徐惠凤徐靖丁磊赵琴芬卢路平
Owner 江苏世泽车业科技有限公司
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