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Composite material for wind power generation blades

A technology for wind power generation blades and composite materials, which is applied in the field of epoxy resin materials, can solve problems such as the lack of clear performance indicators of bisphenol A epoxy resin, and achieve the effects of excellent mechanical properties, reduced surface tension, and enhanced wettability

Active Publication Date: 2013-02-06
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

[0006] In addition, the above-mentioned invention patent application does not specify the performance index of the preferred bisphenol A epoxy resin, because not all composite materials made of bisphenol A epoxy resin can meet the requirements of wind power generation blades in terms of mechanical strength

Method used

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  • Composite material for wind power generation blades
  • Composite material for wind power generation blades

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] In terms of weight percent, 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%.

[0047] In terms of weight percentage, the raw materials of component B of the epoxy resin composition: 67% of polyetheramine (D230) and 33% of N-aminoethylpiperazine.

[0048] The weight ratio of component A to component B is 100:28.

[0049] The fiber reinforced fabric has a modulus of 100000N / mm 2 glass fiber, accounting for 68% by weight of the epoxy resin composition.

[0050] The viscosity of the epoxy resin composition measured by the DIN53015 method is 208mps; the gel time at 70°C is 7 hours.

Embodiment 2

[0052] In percent by weight, the A component raw material of the epoxy resin composition: epoxy equivalent is 175-190 gram / equivalent bisphenol A epoxy resin (brand E54) 85%, 1,4-butanediol diglycidol Ether 14%, C 12 -C 14 Alcohol glycidyl ether 0.8%, propyltrimethoxysilane 0.1% and antioxidant 1010 0.1%.

[0053] In terms of weight percentage, the raw materials of component B of the epoxy resin mixture: polyetheramine (D230) 73% and N-aminoethylpiperazine 27%.

[0054] The weight ratio of component A to component B is 100:30.

[0055] The fiber reinforced fabric has a modulus of 120000N / mm 2 glass fiber, accounting for 70% by weight of the epoxy resin composition.

[0056] The viscosity of the epoxy resin mixture measured by the DIN53015 method is 242mps; the gel time at 70°C is 7 hours.

Embodiment 3

[0058] In percent by weight, the A component raw material of the epoxy resin composition: epoxy equivalent is 175-190 gram / equivalent bisphenol A epoxy resin (brand E54) 88%, 1,4-butanediol diglycidol Ether 11%, C 12 -C 14 Alcohol glycidyl ether 0.8%, propyltrimethoxysilane 0.15% and antioxidant 10100.05%.

[0059] In terms of weight percentage, the raw materials of component B of the epoxy resin mixture: polyetheramine (D230) 79% and N-aminoethylpiperazine 21%.

[0060] The weight ratio of component A to component B is 100:33.

[0061] The fiber reinforced fabric has a modulus of 120000N / mm 2 glass fiber, accounting for 73% by weight of the epoxy resin composition.

[0062] The viscosity of the epoxy resin mixture measured by the DIN53015 method is 212mps; the gel time at 70°C is 7 hours.

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Abstract

The invention relates to a composite material for wind power generation blades, which is formed by an epoxy resin composition and a fiber reinforced fabric occupying 68-73% of the weight of the epoxy resin composition. The epoxy resin composition comprises a component A and a component B in weight proportion of 100: 28-33, wherein the component A consists of bisphenol A type epoxy resin with epoxy equivalent weight of 175-185gram / equivalent weight, a bifunctional epoxy diluent, a monofunctional epoxy diluent, an epoxy coupling agent and an antioxidant; and the component B consists of aliphatic polyamine and alicyclic amine. The fiber reinforced fabric is stated in the specification. The invention discloses the weight proportions of the raw materials. The composite material in the invention is prepared by a liquid molding method, and the strength and the wind attack resisting capability are completely consistent with the requirement of the wind power generation blades.

Description

technical field [0001] The invention relates to an epoxy resin material, in particular to an epoxy resin 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 vacuum infusion. Since epoxy resin accounts fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/02C08L67/00C08K9/06C08K7/00C08K7/14C08K7/06
Inventor 刘龙江王树敏姚其胜候一斌陆企亭
Owner 上海康达新材料科技有限公司