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Vacuum infusion epoxy resin for carbon fiber

An epoxy resin and vacuum infusion technology, which is applied in the fields of wind turbine blades, ships, yachts and automobile bodies, can solve the problems of obvious mechanical properties of materials and unsatisfactory curing agent performance, so as to improve the performance of FRP and improve Wetting properties and the effect of improving production efficiency

Inactive Publication Date: 2015-05-13
WELLS ADVANCED MATERIALS SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are many grades of epoxy resin, and the characteristics of different grades vary greatly. Furthermore, the performance of commonly used amine or acid anhydride curing agents combined with epoxy resin is not very satisfactory, especially in the mechanical properties of materials. especially obvious

Method used

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  • Vacuum infusion epoxy resin for carbon fiber
  • Vacuum infusion epoxy resin for carbon fiber
  • Vacuum infusion epoxy resin for carbon fiber

Examples

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preparation example Construction

[0041] The preparation method of described carbon fiber vacuum impregnation epoxy resin, it comprises each component of described ratio and the following steps:

[0042] Step 1, prepare the resin component

[0043] a. Preheat bisphenol A epoxy resin 127 and epoxy diluent BDGE to 60°C-65°C;

[0044] b, adding bisphenol A type epoxy resin 127 and part of epoxy diluent BDGE preheated in step 1 to the reactor;

[0045] c, adding bisphenol F type epoxy resin 170 to the reactor;

[0046]d, start the stirrer, and stop after stirring at a speed of 24-28rpm for 30-40min;

[0047] e, add the remaining epoxy diluent BDGE,

[0048] f. In a vacuum environment, start the stirring program, control the high speed 28 rpm, low speed 24 rpm, keep stirring for 60-90 minutes, and turn off the stirring program;

[0049] g, stop vacuuming, and return to normal pressure in the reactor to obtain the first component;

[0050] Step 2, preparing the curing agent component;

[0051] h, with polyethe...

Embodiment 1

[0055] Example 1 uses curing agent 6010B.

[0056] Resin component (LTC-6010A): bisphenol A type epoxy resin 127 65%

[0057] Bisphenol F epoxy resin 170 25%

[0058] Epoxy Thinner BDGE 10%; and

[0059] Curing agent component (LTC-6010B): polyetheramine curing agent D230 68%

[0060] Cyclohexanediamine DCH99 22%

[0061] 2-Methylpentamethylenediamine Dytek A 10%

[0062] (The same below, unless otherwise specified)

Embodiment 2

[0063] Embodiment 2 adopts curing agent 6010B-1, namely

[0064] Resin component (LTC-6010A): bisphenol A type epoxy resin 127 65%

[0065] Bisphenol F epoxy resin 170 25%

[0066] Epoxy Thinner BDGE 10%; and

[0067] Curing agent component (LTC-6010B-1): Polyetheramine curing agent D230 60%

[0068] Cyclohexanediamine DCH99 22%

[0069] 2-Methylpentamethylenediamine Dytek A 18%.

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Abstract

The invention relates to wind driven generator blades, vessels, yachts, automobile bodies and the like, in particular to vacuum infusion epoxy resin used for carbon fiber and applied to the production and manufacture process. The vacuum infusion epoxy resin comprises a resin component and a curing agent component, wherein the resin component comprises 50%-70% of a bisphenol A epoxy resin 127, 15%-30% of a bisphenol F epoxy resin 170 and 5%-15% of an epoxy diluent BDGE; the curing agent component comprises 40%-70% of a polyether amine curing agent D230, 20%-30% of diaminocyclohexane DCH 99 and 10%-20% of 2-methyl-diaminopentane Dytek A; and the resin component and the curing agent component are mixed in the proportion of 100:30 to form composition. The vacuum infusion epoxy resin for carbon fiber has low blending viscosity, the infiltration of carbon fiber is good, the operation pot life is flexible, appropriate adjustment can be performed according to different curing agents, the quality of blade and automobile body products is improved greatly, and the production efficiency can be increased.

Description

technical field [0001] The invention relates to blades of wind power generators, ships, yachts, automobile bodies, etc., and in particular to a carbon fiber vacuum infusion epoxy resin used in the production process. Background technique [0002] Along with the development trend of the world economy, energy supply and transportation have undergone great development and changes. In the development of new energy, wind power, as a relatively clean energy, has been widely developed in my country and even in the world. Initially, the blades of wind turbines were made of metal. However, due to the high density of metal and the nature of corrosion, the blades are not easy to install and process, and they are prone to rust when working in harsh weather such as wind and rain for a long time. Repair costs are too high. At the same time, in terms of transportation, the demand for ships, yachts and automobiles has been increasing rapidly in recent years. Like wind turbine blades, shi...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08K7/06C08G59/50
Inventor 谭水平林燕建
Owner WELLS ADVANCED MATERIALS SHANGHAI
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