High temperature-resistant epoxy resin composition for pultrusion and preparation method

An epoxy resin, pultrusion molding technology, applied in the field of polymer chemical industry, can solve the problems of small output, high product price, unsuitability, etc., and achieve the effect of superior high temperature resistance, good cost advantage, and improved toughness

Active Publication Date: 2014-06-25
江苏绿材谷新材料科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The Tg of the high-temperature-resistant resin composition mentioned in the above-mentioned published patent is not higher than 210°C, so the composition is obviously not suitable for use in a high-temperature environment greater than 210°C
In addition, the solution of the above patent needs to add multifunctional glycidylamine series epoxy resin. Due to the complicated preparation process,

Method used

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  • High temperature-resistant epoxy resin composition for pultrusion and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] 3 parts of E-51, 2 parts of NPEF-170, 5 parts of GE-30 and 90 parts of CEL-2021P were prepared according to the above resin A preparation method to obtain resin A component; 55 parts of methyl hexahydrophthalic anhydride, 12 parts Phenone tetracarboxylic dianhydride, 8 parts of PFNH9880, 23 parts of Ricon-130MA-13, 1.2 parts of polymethylphenylsiloxane and 0.8 parts of iron acetylacetonate were prepared according to the above method of curing agent B to obtain curing agent group B point.

[0051]Mix component A and component B thoroughly with the ratio of A:B=100:128 to obtain an epoxy resin composition, take an appropriate amount of samples for gel test, viscosity test, pot life test, Exothermic peak test: The casting body of the resin composition was prepared and the Tg test and the impact strength test of the casting body were performed. The test results of the composition are shown in Table 1 below.

[0052] The epoxy resin composition prepared in Example 1 is used...

Embodiment 2

[0057] 2 parts of E-51, 20 parts of NPCN-704, 2 parts of GE-30 and 76 parts of TDE-85 were prepared according to the above resin A preparation method to obtain resin A component; 69 parts of methyl endomethylene tetrahydro Phthalic anhydride, 7 parts of benzophenone tetracarboxylic dianhydride, 1 part of PFNH9880, 20 parts of Ricon-130MA-13, 2 parts of polymethylphenylsiloxane and 1 part of iron acetylacetonate were prepared according to the method of curing agent B above. Curing agent B component.

[0058] Mix component A and component B thoroughly with the ratio of A:B=100:152 to obtain an epoxy resin composition, take an appropriate amount of samples for gel test, viscosity test, pot life test, Exothermic peak test: The casting body of the resin composition was prepared and the Tg test and the impact strength test of the casting body were performed. The test results of the composition are shown in Table 1 below.

[0059] The epoxy resin composition prepared in Example 2 is...

Embodiment 3

[0064] 25 parts of E-51, 5 parts of NPEF-170, 8 parts of GE-30 and 62 parts of CEL-2021P were prepared according to the above resin A preparation method to obtain resin A component; 70 parts of methyl endomethylene tetrahydro Phthalic anhydride, 5 parts methyltetrahydrophthalic anhydride, 5 parts pyromellitic dianhydride, 2 parts PFNH9880, 15 parts Ricon-130MA-13, 1.5 parts polymethylphenylsiloxane, and 1.5 parts 2-ethyl-4 - Methylimidazole is prepared according to the above-mentioned preparation method of curing agent B to obtain component B of curing agent.

[0065] Mix component A and component B thoroughly with the ratio of A:B=100:119 to obtain an epoxy resin composition, take an appropriate amount of samples for gel test, viscosity test, pot life test, Exothermic peak test: The casting body of the resin composition was prepared and the Tg test and the impact strength test of the casting body were performed. The test results of the composition are shown in Table 1 below. ...

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Abstract

The invention provides a high temperature-resistant epoxy resin composition for pultrusion and a preparation method. The high temperature-resistant epoxy resin composition for pultrusion comprises A and B components, wherein the A component comprises glycidyl ether epoxy resin, cycloaliphatic epoxy resin and an epoxy resin active diluents, the B component comprises cycloaliphatic anhydride, aromatic hydrocarbon polyanhydride, a thermoplastic phenolic resin curing agent, a maleic anhydride grafted rubber toughening agent, a polysiloxane toughening modifier, and an epoxy resin curing accelerator, and the ratio of the A component to the B component, by weight of the components, is 100:50-250. The composition of the invention has excellent high temperature resistance, and also maintains balance between processing properties, impact toughness and comprehensive performance. The prepared products can be used for a long time in rigorous wild high temperature environment.

Description

technical field [0001] The invention relates to a high-temperature-resistant epoxy resin composition and a preparation method that can meet the pultrusion molding process to prepare composite materials, and relates to the field of polymer chemical industry. While the composition of the present invention has superior high temperature resistance performance, it also maintains the balance of process performance, impact toughness and comprehensive performance, and the prepared product can be used for a long time in harsh field high temperature environment. Background technique [0002] The molding of composite materials places high demands on the technological performance of the resin. The pultrusion molding process of composite materials requires that the matrix resin has the characteristics of low viscosity, long pot life, high reaction speed and good toughness. Low viscosity and long pot life are used to meet the continuous large-scale production of pultrusion products; high...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L51/04C08L83/04C08K5/1515C08K5/1539
Inventor 李炳泉吴智深胡显奇刘建勋朱中国
Owner 江苏绿材谷新材料科技发展有限公司
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