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Flame-retardant resin composite for pultrusion and preparation method of flame-retardant resin composite

A technology for preparing composite materials and epoxy resins, which is applied in the field of resins for pultrusion, and can solve problems such as restricting rail transit applications and flammability of epoxy resins.

Inactive Publication Date: 2018-05-04
HENGSHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Carbon fiber composite materials use carbon fiber as the reinforcing phase and the matrix resin as the continuous phase. The matrix resins generally include epoxy resin, phenolic resin, double horse resin, cyanate ester and various thermoplastic resins. Among them, epoxy resin is the most commonly used, but environmental protection Oxygen resin is flammable, which limits its application in the field of rail transit

Method used

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  • Flame-retardant resin composite for pultrusion and preparation method of flame-retardant resin composite
  • Flame-retardant resin composite for pultrusion and preparation method of flame-retardant resin composite

Examples

Experimental program
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Effect test

Embodiment 1

[0025] A kind of flame retardant epoxy resin that pultrusion is used its formula weight percentage is:

[0026] Bisphenol A epoxy resin: 15%; Novolac epoxy resin: 20%; Carboxy-terminated nitrile rubber: 12%

[0027] Aluminum hydroxide: 10%; coated red phosphorus: 12%

[0028] Phthalic anhydride: 30%; fiber sizing BYK-9920 purchased by BYK Chemicals: 1%,

[0029] Add 15% bisphenol A epoxy resin and 20% novolac epoxy resin into a high-speed disperser and stir for 15 minutes until uniform, add 12% toughening agent carboxy-terminated nitrile rubber, stir for 15 minutes until uniform, weigh and add 10% aluminum hydroxide and 12% coated red phosphorus, stirred for 20 minutes until uniform, weighed and added 30% curing agent phthalic anhydride, stirred for 15 minutes until uniform. Put the mixed resin into the resin tank, soak the continuous fiber in the resin tank under a certain tension, and then pass through the mold at a certain speed, and the mixed resin reacts under the actio...

Embodiment 2

[0036] A kind of flame retardant epoxy resin that pultrusion is used its formula weight percentage is:

[0037] Bisphenol A epoxy resin: 15%; Novolak epoxy resin: 20%

[0038] Carboxy-terminated nitrile rubber: 12%; zinc borate: 12%

[0039] Coated red phosphorus: 10%; Phthalic anhydride: 30

[0040] Fiber sizing BYK-9920 purchased by BYK: 1%

[0041] Add 15% bisphenol A epoxy resin and 20% novolac epoxy resin into a high-speed disperser and stir for 15 minutes until uniform, add 12% toughening agent carboxy-terminated nitrile rubber, stir for 15 minutes until uniform, weigh and add 12% zinc borate and 10% coated red phosphorus, stirred for 20 minutes until uniform, weighed and added 30% curing agent phthalic anhydride, stirred for 15 minutes until uniform. Put the mixed resin into the resin tank, soak the continuous fiber in the resin tank under a certain tension, and then pass through the mold at a certain speed, and the mixed resin reacts under the action of high tempera...

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Abstract

The invention relates to a flame-retardant resin composite for pultrusion and a preparation method of the flame-retardant resin composite. The flame-retardant resin composite is prepared from, in percentage by weight, 60%-80% of continuous fiber and 20%-40% of flame-retardant epoxy resin, wherein the continuous fiber is carbon fiber. The prepared flame-retardant resin composite for pultrusion hashigher flame retardance with the flame retardance level reaching S-4 / SR-2 / ST-2 / FED<1 of the DIN5510-2 standard on the basis that the excellent mechanical performance of the epoxy resin based compositeis guaranteed. Compared with the prior art, the composite realizes application of the high-flame-retardant epoxy resin in a pultrusion process.

Description

technical field [0001] The invention relates to the technical field of resin for pultrusion, in particular to a composite material of flame-retardant epoxy resin for pultrusion and a preparation method thereof. Background technique [0002] Due to its high strength and high modulus, carbon fiber is widely used in aerospace, energy equipment, transportation, construction engineering, sports and leisure and other fields. Carbon fiber composite materials use carbon fiber as the reinforcing phase and the matrix resin as the continuous phase. The matrix resins generally include epoxy resin, phenolic resin, double horse resin, cyanate ester and various thermoplastic resins. Among them, epoxy resin is the most commonly used, but environmental protection Oxygen resin is flammable, which limits its application in rail transit. [0003] The pultrusion process has the following characteristics: [0004] (1) The pultrusion process is simple and efficient, suitable for large-scale prod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L13/00C08K13/06C08K7/06C08K9/10C08K3/22C08K3/02C08K5/09C08K3/38
CPCC08K2003/026C08K2003/387C08L63/00C08L2201/02C08L2205/025C08L2205/03C08L13/00C08K13/06C08K7/06C08K9/10C08K3/22C08K3/02C08K5/09C08K3/38
Inventor 尹国强单瑞俊毛慧文朱珊珊夏晶
Owner HENGSHEN