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Epoxy resin material compatible with liquid oxygen and preparation method of epoxy resin material

A technology of epoxy resin and liquid oxygen, which is applied in the field of epoxy resin materials and its preparation, can solve the problems of liquid oxygen incompatibility, explosion, combustion, etc., and achieve the effect of increasing the speed, low price, and prolonging the mixing time

Active Publication Date: 2013-12-25
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when epoxy resin-based composites are in contact with liquid oxygen, violent chemical reactions such as explosion and combustion may occur under the action of external energy such as impact, collision, friction, and static electricity, that is, liquid oxygen is incompatible.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A preparation method of an epoxy resin material compatible with liquid oxygen, said preparation method comprising the steps of:

[0030] ① mechanically grinding 5 parts by weight of flame retardant for 1 hour, the rotating speed is 30 rpm, and the flame retardant is octabromoether, phosphorus oxychloride, phosphorus trichloride, melamine, dimethyl methylphosphonate The weight ratio is 1:1:1:1:1;

[0031] ② Mix 95 parts by weight of bisphenol A epoxy resin and T-31 curing agent with 8 parts by weight and the ground flame retardant for 2 hours, and the speed is 2 rpm;

[0032] ③ After mixing, heat up to 30°C and cure for 24 hours.

[0033] The liquid oxygen compatibility test results and limiting oxygen index are shown in Table 1.

Embodiment 2

[0035] A preparation method of an epoxy resin material compatible with liquid oxygen, said preparation method comprising the steps of:

[0036] 1. Mechanically grinding 5 parts by weight of the flame retardant for 3 hours at a speed of 50 rpm. The flame retardant is octabromoether, phosphorus oxychloride, phosphorus trichloride, melamine, dimethyl methylphosphonate The weight ratio is 1:1:1:1:1;

[0037] ② Mix 95 parts by weight of bisphenol A epoxy resin and T-31 curing agent with 8 parts by weight and the ground flame retardant for 3 hours, and the speed is 10 rpm;

[0038] ③ After mixing, heat up to 30°C and cure for 24 hours.

[0039] The liquid oxygen compatibility test results and limiting oxygen index are shown in Table 1.

Embodiment 3

[0041] A preparation method of an epoxy resin material compatible with liquid oxygen, said preparation method comprising the steps of:

[0042] ① mechanically grinding 10 parts by weight of the flame retardant for 1 hour at a speed of 30 rpm, the flame retardant being octabromoether, phosphorus oxychloride, phosphorus trichloride, melamine, dimethyl methylphosphonate The weight ratio is 1:1:1:1:1;

[0043] ② Mix 95 parts by weight of bisphenol A epoxy resin and T-31 curing agent with 8 parts by weight and the ground flame retardant for 2 hours, and the speed is 2 rpm;

[0044] ③ After mixing, heat up to 30°C and cure for 24 hours.

[0045] The liquid oxygen compatibility test results and limiting oxygen index are shown in Table 1.

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PUM

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Abstract

The invention relates to an epoxy resin material compatible with liquid oxygen and preparation method of epoxy resin material, and belongs to the technical field of resin material modification. The epoxy resin material compatible with liquid oxygen is composed of the following components in parts by weight: 85-95 parts of epoxy resin, 5-15 parts of a fire retardant and 8-12 parts of a curing agent, wherein the fire retardant is selected from at least one of octabromoether, phosphorus oxychloride, phosphoryl chloride, phosphorus trichloride, melamine, dimethyl methylphosphonate, aluminium hydroxide and magnesium hydroxide. The epoxy resin material provided by the invention has the beneficial effect that the epoxy resin material compatible with the liquid oxygen has no obvious reaction such as explosion, combustion and flash with the liquid oxygen according to ASTMD2512(2008) standard detection, so that the epoxy resin is compatible with the liquid oxygen.

Description

technical field [0001] The invention relates to an epoxy resin material compatible with liquid oxygen and a preparation method thereof, belonging to the technical field of resin material modification. Background technique [0002] With the further development of the aerospace industry, the new generation of aerospace vehicles has put forward higher requirements for lightweight and low-cost materials, and the main structural components of the aircraft have to rely on various lightweight composite materials. At present, most of the power propulsion systems of aerospace vehicles use liquid oxygen as the oxidant. Traditional liquid oxygen storage tanks are made of metal materials. If epoxy resin-based composite materials are used, the weight of liquid oxygen storage tanks will be significantly reduced. Carbon fiber reinforced epoxy resin-based composites have the advantages of high specific strength and high specific modulus, good heat resistance, good fatigue resistance and goo...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L63/02C08G59/40C08K5/06C08K3/32C08K5/3492C08K5/5333C08K3/22
Inventor 武湛君孙涛李家亮王智李世超
Owner DALIAN UNIV OF TECH
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