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Filler-free halogen-free flame-retardant epoxy resin composition

A technology of epoxy resin and composition, which is applied in the field of flame-retardant composite materials, can solve the problems that filler-type flame retardants cannot meet RTM vacuum diversion, etc., and achieve the effects of improving flame-retardant effect, good wettability, and ensuring product quality

Inactive Publication Date: 2015-05-20
WELLS ADVANCED MATERIALS SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, halogenated flame retardants release a large amount of harmful hydrogen halide gas after burning, and filler-type flame retardants cannot meet the requirements of RTM (Resin Transfer Molding), vacuum diversion and other processes

Method used

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  • Filler-free halogen-free flame-retardant epoxy resin composition
  • Filler-free halogen-free flame-retardant epoxy resin composition
  • Filler-free halogen-free flame-retardant epoxy resin composition

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Embodiment Construction

[0034] Below, in conjunction with specific embodiment, the present invention will be further described:

[0035] A kind of filler-free halogen-free flame-retardant epoxy resin composition, it comprises two components A and B, and described A component comprises:

[0036] Low halogen bisphenol A type epoxy resin 128 55-75%

[0037] Bisphenol F epoxy resin 170 5-15%

[0038] Phosphorus nitrogen series flame retardant 10-30%

[0039] Phosphate flame retardant 10-20%

[0040] The B component includes:

[0041] Polyetheramine curing agent D230 10-20%

[0042] Isophoronediamine IPDA 50-70%

[0043] N-Aminoethylpiperazine N-AEP 20-30%;

[0044] The percentages of each component are percentages by weight; the code name is GT-910B.

[0045] The composition is obtained after mixing the components A and B according to the weight ratio of 100:19-21.

[0046] In the above-mentioned one kind of filler-free halogen-free flame-retardant epoxy resin group, the appearance of the first c...

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Abstract

The invention relates to a flame-retardant composite material formed by multiple techniques, particularly a filler-free halogen-free flame-retardant epoxy resin composition. The filler-free halogen-free flame-retardant epoxy resin composition comprises a component A and a component B. The component A comprises the following components in percentage by weight: 55-75% of low-halogen bisphenol A epoxy resin 128, 5-15% of bisphenol F epoxy resin 170, 10-30% of phosphorus-nitrogen flame retardant and 10-20% of phosphate flame retardant. The component B comprises the following components in percentage by weight: 10-20% of polyetheramine curing agent D230, 50-70% of isophorone diamine (IPDA) and 20-30% of N-aminoethyl piperazidine. The component A and component B are mixed according to the weight ratio of 100:(19-21) to obtain the composition. On the premise of ensuring various physiochemical properties of the cured resin and especially the mechanical properties and halogen-free flame retardancy, the composition does not use any filler-type flame retardant, and satisfies the operating requirements for multiple techniques.

Description

technical field [0001] The invention relates to a flame-retardant composite material formed by various techniques, in particular to an epoxy resin composition for rail transit. Background technique [0002] Rail transit, as a kind of public transportation, the safety of materials has been valued in our country and even in the world. Composite materials are widely used in rail transit. In the past, unsaturated resins and halogenated flame retardants were used. However, with people's in-depth understanding of materials, unsaturated resins and halogenated flame retardants will emit concentrated emissions when a fire occurs in rail transit. Smoke and gases harmful to humans are very unfavorable to rescue after a fire. [0003] In order to solve the above problems, epoxy resin, as a high-strength engineering material, has excellent weather resistance and is therefore selected to make rail transit components. Among them, bisphenol A type epoxy resin (such as epoxy resin 128) is ...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08G59/24C08G59/50C08K5/521
Inventor 金威林燕建
Owner WELLS ADVANCED MATERIALS SHANGHAI
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