Epoxy resin composition and composite material for wind power generator blade

A technology of wind power generation blades and epoxy resin, which is applied in the field of resin-based composite materials, can solve the problems of gelling time, post-curing speed, and elongation at break that are not in an ideal state, achieve less volatiles, improve manufacturing efficiency, The effect of short curing time

Active Publication Date: 2016-06-15
上海康达新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has not reached the ideal state in terms of gel time, post-cure speed and elongation at break.

Method used

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  • Epoxy resin composition and composite material for wind power generator blade
  • Epoxy resin composition and composite material for wind power generator blade
  • Epoxy resin composition and composite material for wind power generator blade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] In terms of percentage by weight, the raw materials of component A of the epoxy resin composition: 80% of bisphenol A epoxy resin (brand: E54) with an epoxy equivalent of 175-190 grams / equivalent, 1,4-butanediol dishrunk Glyceryl ether 19%, C 8 -C 10 Fatty alcohol glycidyl ether 0.8%, propyltrimethoxysilane 0.05% and antioxidant 10100.15%.

[0036] In terms of weight percentage, the raw materials of component B of the epoxy resin composition: 67% of polyetheramine (D230), 28% of N-aminoethylpiperazine and 5% of 2-phenylimidazole.

[0037] The weight ratio of component A to component B is 100:27.

[0038] The fiber reinforced fabric has a modulus of 100000N / mm 2 glass fiber, accounting for 68% by weight of the epoxy resin composition.

[0039] The viscosity of the epoxy resin composition measured by the DIN53015 method is 208mps.

Embodiment 2

[0041] In terms of percentage by weight, the raw materials of component A of the epoxy resin composition: 85% of bisphenol A epoxy resin (brand E54) with an epoxy equivalent of 175-190 grams / equivalent, 1,4-butanediol diglycidyl Ether 14%, C 12 -C 14 Alcohol glycidyl ether 0.8%, propyltrimethoxysilane 0.1% and antioxidant 10100.1%.

[0042] In terms of weight percentage, the raw materials of component B of the epoxy resin mixture: 69% of polyetheramine (D230), 28% of N-aminoethylpiperazine and 3% of 2-phenylimidazole.

[0043] The weight ratio of component A to component B is 100:29.

[0044] The fiber reinforced fabric has a modulus of 120000N / mm 2 glass fiber, accounting for 70% by weight of the epoxy resin composition.

[0045] The viscosity of the epoxy resin mixture measured by the DIN53015 method is 242mps.

Embodiment 3

[0047] In terms of percentage by weight, the raw materials of component A of the epoxy resin composition: 88% of bisphenol A epoxy resin (brand E54) with an epoxy equivalent of 175-190 grams / equivalent, 1,4-butanediol diglycidyl Ether 11%, C 12 -C 14 Alcohol glycidyl ether 0.8%, propyltrimethoxysilane 0.15% and antioxidant 10100.05%.

[0048] In terms of weight percentage, the raw materials of component B of the epoxy resin mixture: 67% of polyetheramine (D230), 30% of N-aminoethylpiperazine and 3% of 2-phenylimidazole.

[0049] The weight ratio of component A to component B is 100:30.

[0050] The fiber reinforced fabric has a modulus of 120000N / mm 2 glass fiber, accounting for 71% by weight of the epoxy resin composition.

[0051] Adopt DIN53015 method to measure the viscosity of epoxy resin mixture to be 212mps.

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Abstract

The invention relates to a composite material for wind power generator blades, wherein the composite material is composed of an epoxy resin composition and a fiber-reinforced fabric accounting for 68-73% by weight of the epoxy resin composition. The epoxy resin composition includes a component A and a component B according to the weight ratio of 100:28-33, wherein the component A is composed of bisphenol-A epoxy resin being 175-185 g / equivalent in epoxy equivalent, a bi-functional-group epoxy diluent, a mono-functional-group epoxy diluent, an epoxy coupling agent and an antioxidant, and the component B is composed of aliphatic polyamine, cycloaliphatic amine and imidazole. The fiber-reinforced fabric is described as the specification. The invention discloses the weight ratio of the raw materials. The composite material, which is prepared through a liquid moulding method, can reach the demand on strength and anti-wind-impact performance of the wind power generator blades.

Description

technical field [0001] The invention relates to the technical field of resin-based composite materials, in particular to an epoxy resin composition and composite material for wind power generation blades. Background technique [0002] Wind energy is a very important renewable energy, which is inexhaustible and inexhaustible. It has been the focus of renewable energy research in countries all over the world for many years. Among the utilization forms of wind energy, wind power generation technology is the most mature and has the most prospect of commercial development. Large-scale use of wind power generation is also one of the effective measures to reduce harmful gas emissions. [0003] Blades are one of the most basic and critical components of a wind turbine. High-power fan blades (above 2MW) are mainly made of glass fiber reinforced plastic (GFRP) composite materials. The FRP composite material is made of epoxy resin and glass fiber, and its main preparation method is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L67/00C08K7/14C08K5/5419C08K5/134C08K7/06C08G59/50
CPCC08G59/5013C08G59/5026C08G59/5073C08K5/1345C08K5/5419C08K7/06C08K7/14C08L63/00C08L2205/16C08L67/00
Inventor 高文超刘龙江栾猛欧涛钱文娟
Owner 上海康达新材料科技有限公司
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