Flame-retardant high temperature-resistant epoxy resin composition capable of being used for pultrusion and preparation method thereof

An epoxy resin, pultrusion molding technology, applied in the field of polymer chemical industry, can solve the problems of reducing glass transition temperature, sharp increase in resin viscosity, difficult to use, etc., and achieve the effect of Tg improvement, excellent high temperature resistance and good cost advantage.

Active Publication Date: 2014-08-27
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

However, the base materials disclosed in this patent are limited to unsaturated resins, and adding too much of ordinary unmodified aluminum hydroxide flame retardant to the epoxy resin system will easily cause compatibility problems, resulting in a sharp increase in resin viscosity But it is difficult to use; for high temperature resistant epoxy resin, the addition of low molecular weight flame retardant phosphate will greatly reduce its glass transition temperature, which does not meet the requirements for high temperature resistant composite materials

Method used

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  • Flame-retardant high temperature-resistant epoxy resin composition capable of being used for pultrusion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] 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 methylhexahydrophthalic anhydride, 12 parts Phenone tetracarboxylic dianhydride, 8 parts PFNH9880, 23 parts Ricon-130MA-13, 1.2 parts polymethylphenylsiloxane and 0.8 parts iron acetylacetonate were prepared according to the above curing agent B method to obtain curing agent group B Points; 99 parts of ultrafine particle size magnesium hydroxide LHN-01, 0.8 parts of CG-560, and 0.2 parts of stearic acid are prepared according to the method of the above-mentioned flame retardant modifier C component to obtain the C component.

[0057] The A component, the B component and the C component are fully stirred and mixed uniformly at the ratio of A:B:C=100:128:20 to obtain a flame-retardant and high-temperature resistant epoxy resin composition. Gel test, viscosity test, pot life test, exothermic p...

Embodiment 2

[0063] 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-mentioned resin A preparation method to obtain the resin A component; 69 parts of methyl endomethine 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 are prepared according to the above curing agent B method Curing agent B component: 98 parts of ultra-fine particle size magnesium hydroxide LHN-01, 1 part of CG-561, 1 part of oleic acid are prepared according to the method of the above flame retardant modifier C component to obtain the C component.

[0064] Mix A component, B component and C component in the ratio of A:B:C=100:152:30 to obtain a flame-retardant and high-temperature-resistant epoxy resin composition. Gel test, viscosity test, pot life test, exothermic peak test; prepare resin composition casti...

Embodiment 3

[0070] 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-mentioned resin A preparation method to obtain the resin A component; 70 parts of methyl endomethylene tetrahydro Phthalic anhydride, 5 parts of methyltetrahydrophthalic anhydride, 5 parts of pyromellitic dianhydride, 2 parts of PFNH9880, 15 parts of Ricon-130MA-13, 1.5 parts of polymethylphenylsiloxane, and 1.5 parts of 2-ethyl-4 -Methyl imidazole was prepared according to the above curing agent B preparation method to obtain the curing agent B component; 95 parts of ultrafine particle size magnesium hydroxide LHN-01, 3 parts of CG-561, and 2 parts of stearic acid The modifier C component is prepared by the method to obtain the C component.

[0071] Combine component A and component B in the ratio of A:B:C=100:119:100 to obtain a flame-retardant and high-temperature-resistant epoxy resin composition after fully stirring and mixing uniformly. Take appropri...

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Abstract

The invention discloses a flame-retardant high temperature-resistant epoxy resin composition capable of being used for pultrusion and a preparation method thereof. The flame-retardant high temperature-resistant epoxy resin composition capable of being used for pultrusion comprises three components of A, B, and C, and is characterized in that the A component comprises diglycidyl ether epoxy resin, cycloaliphatic epoxy resin and an epoxy resin active diluents; the B component comprises cycloaliphatic acid anhydride, arene poly(acid anhydride), a thermoplastic phenolic resin curing agent, a maleic anhydride-grafted rubber flexibilizer, a polysiloxane toughening modifier, and an epoxy resin curing accelerator; the C component comprises an inorganic fire retardant which has an ultrafine particle size and is subjected to surface modification by a silane coupling agent and a hydrophobic modifier; the weight ratio of the A, B, and C components is that A:B:C=100:50-250:20-150.

Description

Technical field [0001] The invention relates to a flame-retardant and high-temperature resistant epoxy resin composition and a preparation method that can meet the requirements of a pultrusion process for preparing composite materials, and relates to the field of polymer chemical engineering. The composition of the present invention not only has excellent high temperature resistance performance, but also maintains the balance of process performance, impact toughness and comprehensive performance. The composite material prepared by using the composition not only has good mechanical properties, but also has good flame retardant properties. Long-term use in harsh high-temperature environments. Background technique [0002] The molding of composite materials puts forward high requirements on the process performance of the resin. The pultrusion process of composite materials requires the matrix resin to have a lower viscosity, a long pot life, a higher reaction speed and good toughne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L51/04C08L83/04C08G59/42C08G59/62C08K9/06C08K9/04C08K3/22
Inventor 李炳泉吴智深
Owner 江苏绿材谷新材料科技发展有限公司
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