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Flame-retardant epoxy resin composition

A technology of epoxy resin and brominated epoxy resin, applied in the field of vacuum infusion technology

Pending Publication Date: 2022-07-15
SIKA TECH AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, epoxy resins for vacuum infusion processes still have needs and room for further improvement

Method used

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  • Flame-retardant epoxy resin composition
  • Flame-retardant epoxy resin composition
  • Flame-retardant epoxy resin composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0105] Example 1 (Ex1)

[0106] 62.5g of D.E.R.331 and 22g of ICL F2016 were placed in a container, heated to 80°C with stirring, and cooled to room temperature after the brominated epoxy resin was completely dissolved in the epoxy resin. Subsequently, 15 g of organic phosphorus flame retardant TEP and 0.5 g of KH570 were added, and the epoxy resin component was obtained after mixing with a paddle stirrer for about 20 minutes.

Embodiment 2

[0107] Example 2 (Ex2)

[0108] 49.4g of D.E.R.338, 22g of NPEB 400, 10g of diluent ERISYS GE21 and 18.1g of organophosphorus flame retardant DEEP and 0.5g of KH570 were placed in a closed container and stirred at room temperature for 2 hours until a brominated ring was obtained A homogeneous resin mixture in which the oxygen resin is completely dissolved, an epoxy resin component is obtained.

Embodiment 3

[0109] Example 3 (Ex3)

[0110] 40g of D.E.R.331, 22g of NPEB 400, 19.5g of diluent trimethylolpropane triglycidyl ether, 18g of organophosphorus flame retardant DEEP and 0.5g of KH570 were placed in a closed container and stirred at room temperature for 2 hours until a homogeneous resin mixture in which the brominated epoxy resin is completely dissolved is obtained, that is, the epoxy resin component is obtained.

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PUM

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Abstract

The invention relates to a flame-retardant epoxy resin composition comprising, based on the total weight of the composition, A) 25-65% by weight of an epoxy resin, B) 16-30% by weight of a brominated epoxy resin having end-capping groups selected from epoxy groups and tribromophenol groups, and C) 10-25% by weight of an organophosphorus flame retardant. In addition, the invention also relates to a method for preparing a composite material by using vacuum infusion of the flame-retardant epoxy resin composition and to an article obtained by the method.

Description

[0001] Field of Invention [0002] The present invention relates to a flame retardant epoxy resin composition, which is especially suitable for vacuum infusion process. In addition, the present invention also relates to the use of such flame retardant epoxy resin compositions and articles made therefrom. [0003] Background of the Invention [0004] In industrial manufacturing, especially in the manufacture of parts of some vehicles such as automobiles, trains, ships and airplanes, a large number of composite materials are required. Manufacturing processes for composite materials are also evolving. The vacuum infusion process (sometimes also referred to as the vacuum infusion process) is a suitable process for manufacturing composite materials. In this method, usually first place reinforcement materials such as glass fiber, carbon fiber, etc. on the mold, and then lay a vacuum application device such as a vacuum bag or a vacuum guide net on it to draw out the air in the syste...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L63/02C08K5/521
CPCC08L63/00C08L2201/02C08K5/521
Inventor 顾春华成偬
Owner SIKA TECH AG
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