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High-toughness fire retarding epoxy resin composition and preparation method thereof

A technology of epoxy resin and high toughness, which is applied in the epoxy resin composition with high toughness and flame retardancy and its preparation, and in the field of epoxy resin composition and its preparation, which can solve the problem that materials only have flame retardancy. To prevent fire and other problems, to achieve the effect of improving toughness and flame retardancy

Inactive Publication Date: 2014-06-18
HENGSHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At the same time, the continuous occurrence of vicious fires has made people gradually realize that only the flame retardancy of materials is far from achieving the purpose of preventing fires.

Method used

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Examples

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Effect test

preparation example Construction

[0036] The present invention also includes a preparation method of the above-mentioned high-toughness flame-retardant epoxy resin composition, and its specific preparation steps are as follows:

[0037] (1) For the preparation of curing agent paste B, first weigh epoxy resin A4 and add it to a beaker and other mixing equipment, then weigh the curing agent and add it to the above mixing equipment, mechanically stir the two components at an appropriate temperature to mix them evenly, and then weigh Add the accelerator to the above mixing equipment, mechanically stir or use other mixing and grinding equipment to evenly disperse the powder components in the mixing components, so as to obtain a curing agent paste that is uniformly mixed with epoxy resin A4, curing agent, and accelerator for use .

[0038] (2) Preparation of high-toughness flame-retardant epoxy resin composition. First, weigh epoxy resins A1, A2, and A3 respectively and add them to mixing equipment such as a beaker,...

Embodiment 1

[0045] The preparation of curing agent paste, the epoxy resin A4, curing agent and accelerator in the curing agent paste system B select bisphenol A type epoxy resin, dicyandiamide and polyurea respectively, and combine according to the weight ratio of 70:20:10, First weigh 70g of bisphenol A epoxy resin into the beaker, then weigh 20g of dicyandiamide into the beaker, mechanically stir the two components to mix them evenly for about 15min, then weigh 10g of polyurea into the previous beaker In the mixing process, mechanically stir or use other grinding equipment to mix the powder in the mixed components evenly. Obtain a uniformly mixed curing agent paste for use.

[0046] The preparation of high-toughness flame-retardant epoxy resin composition, A1, A2, A3 in resin system A select bisphenol A type epoxy resin, cresol type epoxy resin, brominated bisphenol F type epoxy resin respectively, weight The ratio is 30:10:40. The weight ratio of the combination of A1, A2, and A3 to th...

Embodiment 2

[0048] The preparation of the curing agent paste in Example 1 is the same except that the accelerator in the curing agent paste system is an imidazole zinc salt complex.

[0049] The preparation of the high-toughness flame-retardant epoxy resin composition in Example 1 was the same except that A1 in the resin system was replaced with bisphenol F-type epoxy resin.

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PUM

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Abstract

The invention discloses a high-toughness fire retarding epoxy resin composition and a preparation method thereof. The composition consists of a resin system A and a curing agent paste system B, wherein the resin system A consists of an epoxy resin component and a flexibilizer component, and the curing agent paste system B consists of the epoxy resin component, a curing agent component and a promoting agent component. The epoxy resin composition can be further subjected to a procedural heating curing process to obtain a high-toughness fire retarding epoxy resin cured substance. Compared with common epoxy resin, the toughness and fire resistance of the high-toughness fire retarding epoxy resin composition are greatly improved. The prepared epoxy resin can be used as a coating, a casting material, a mold pressing material, an adhesive or a laminating material and penetrates to various aspects of the national economy from daily necessities to high-tech field in a form of direct use or indirect use.

Description

technical field [0001] The invention relates to an epoxy resin composition and a preparation method thereof, in particular to an epoxy resin composition with high toughness and flame retardancy and a preparation method thereof, belonging to the technical field of polymer materials. Background technique [0002] Epoxy resin is a kind of thermosetting polymer synthetic material with good adhesion, corrosion resistance, insulation, high strength and other properties. It has been widely used in the bonding of various metals and non-metallic materials, the manufacture of corrosion-resistant coatings, electrical insulation materials, FRP / composite materials, etc. It plays an important role in electronics, electricity, machinery manufacturing, chemical anticorrosion, aerospace, ship transportation, chemical building materials, hydropower and many other industrial fields, and has become an indispensable basic material in various industrial fields. [0003] Epoxy resin itself is lin...

Claims

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Application Information

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IPC IPC(8): C08L63/00
Inventor 单瑞俊岳伟李红强吕军
Owner HENGSHEN
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