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A kind of preparation method of high heat resistance, high strength epoxy resin composite material

An epoxy resin, high-strength technology, applied in the field of polymer material preparation, can solve the problems of high production cost and limited application prospects, and achieve the effects of low cost, huge application prospects and huge production potential.

Active Publication Date: 2017-12-05
JIANGSU ZHAOJUN NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the original polymer, its performance has also been improved to a certain extent, but the production cost is too high, and it is easy to agglomerate in the resin system, which greatly limits its application prospect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 1) Put 1000 grams of epoxy resin 638S and 800 grams of methyltetrahydrophthalic anhydride in a 2-liter glass flask, and stir for 30 minutes at normal temperature and pressure to obtain solution 1, which is directly used in the next reaction;

[0017] 2) Place solution 1 of the previous step and 20 grams of 2-ethyl-4-methylimidazole in a 2-liter glass flask, and stir for 20 minutes at normal temperature and pressure to obtain solution 2;

[0018] 3) Add 50 g of fumed silica R202 to solution 2 in the previous step, and stir for 10 minutes to obtain mixture 1. Mixture 1 has a viscosity of 80000 cps.

[0019] 4) Add 100 grams of fumed silica R202 to the mixture 1 of the previous step, stir for 10 minutes to obtain the mixture 2, cast it on a stainless steel mold, and cure it at 130°C for one hour. After demoulding, the high heat-resistant, high-strength ring Oxygen composite material.

[0020] The Tg test of the high heat-resistant, high-strength-epoxy resin composite mat...

Embodiment 2

[0022] Compared with step 1) of Example 1, this embodiment increases the amount of 2-ethyl-4-methylimidazole to reduce the curing temperature, shorten the curing time, and improve production efficiency.

[0023] Put 1000 grams of epoxy resin 638S and 800 grams of methyltetrahydrophthalic anhydride in a 2-liter glass flask, and stir for 30 minutes at normal temperature and pressure to obtain solution 1, which is directly used in the next reaction;

[0024] 2) Place solution 1 of the previous step and 40 grams of 2-ethyl-4-methylimidazole in a 2-liter glass flask, and stir for 20 minutes at normal temperature and pressure to obtain solution 2;

[0025] 3) Add 50 g of fumed silica R202 to solution 2 in the previous step, and stir for 10 minutes to obtain mixture 1. The viscosity of Mixture 1 was 83000 cps.

[0026] 4) Add 100 grams of fumed silica R202 to the mixture 1 in the previous step, stir for 10 minutes to obtain mixture 2, cast it on a stainless steel mold, and cure it a...

Embodiment 3

[0029] Compared with step 1) of Example 1, this embodiment increases the amount of 2-ethyl-4-methylimidazole to reduce the curing temperature, shorten the curing time, and improve production efficiency.

[0030] Put 1000 grams of epoxy resin 638S and 800 grams of methyltetrahydrophthalic anhydride in a 2-liter glass flask, and stir for 30 minutes at normal temperature and pressure to obtain solution 1, which is directly used in the next reaction;

[0031] 2) Place solution 1 of the previous step and 50 grams of 2-ethyl-4-methylimidazole in a 2-liter glass flask, and stir for 20 minutes at normal temperature and pressure to obtain solution 2;

[0032] 3) Add 50 g of fumed silica R202 to solution 2 in the previous step, and stir for 10 minutes to obtain mixture 1. The viscosity of Mixture 1 was 83000 cps.

[0033] 4) Add 100 grams of fumed silica R202 to the mixture 1 of the previous step, and stir for 10 minutes to obtain the mixture 2, which is cast on a stainless steel mold,...

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Abstract

The invention discloses a method for preparing a high heat-resistant, high-strength epoxy resin composite material, which uses epoxy resin, curing agent, accelerator, and fumed silica as raw materials, and is prepared through the following steps: epoxy resin 1. Stir the phthalic anhydride curing agent at normal temperature and normal pressure. After mixing completely, a mixed solution A is obtained; stir the above-mentioned mixture A and imidazole derivatives at normal temperature, and obtain a mixed solution B after mixing completely; mix the above-mentioned mixed solution B with gas phase II Silica is mixed and stirred to obtain a mixture C; the above mixture C is ground and mixed with fumed silica, and solidified to obtain a product. The preparation method provided by the invention is simple, high in efficiency, low in cost, and has great potential for industrialized production, and the obtained product has characteristics such as high heat resistance and high strength. It has great application prospects in the field of heat-resistant materials.

Description

technical field [0001] The invention belongs to the technical field of polymer material preparation, and in particular relates to a preparation method of an epoxy resin composite material with high heat resistance and high strength. Background technique [0002] With the rapid development of my country's economic construction, the requirements for various circuit devices and motors are constantly increasing, and circuit devices and motors are prone to generate a lot of heat during work, which seriously affects the reliability and stability of circuit devices and motors. and service life etc. Therefore, there is a need to develop new packaging materials with high heat resistance and high strength in high temperature operation. Epoxy resin is one of the most widely used plastic products in packaging materials. In order to improve the mechanical properties of epoxy resin packaging materials at high temperatures, it is usually necessary to add high heat-resistant, high-strength ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C08K3/36C08G59/42
Inventor 鲁平才杨智明赵钎
Owner JIANGSU ZHAOJUN NEW MATERIAL CO LTD