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Epoxy resin composition for vacuum introduction formation of fibre reinforced composite material and preparation method of epoxy resin composition

A technology of vacuum introduction molding and epoxy resin, which is applied in the field of epoxy resin composition and its preparation in the vacuum introduction molding process of fiber-reinforced composite materials, which can solve the problems of high viscosity, poor heat resistance and toughness, and achieve low viscosity, The effect of high heat resistance and good wetting performance

Inactive Publication Date: 2013-03-13
BLUESTAR BEIJING CHEM MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides an epoxy resin composition for vacuum introduction molding of fiber-reinforced composite materials and a preparation method thereof. Defects of heat and poor toughness

Method used

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  • Epoxy resin composition for vacuum introduction formation of fibre reinforced composite material and preparation method of epoxy resin composition
  • Epoxy resin composition for vacuum introduction formation of fibre reinforced composite material and preparation method of epoxy resin composition
  • Epoxy resin composition for vacuum introduction formation of fibre reinforced composite material and preparation method of epoxy resin composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027]Example 1: 50.0g hydantoin epoxy resin MHR-070 (purchased from Wuxi Meihua Chemical Co., Ltd., epoxy value 0.70-0.74), 50.0g bisphenol A glycidyl ether epoxy resin E-51 (purchased from Wuxi Resin Factory of Bluestar Chemical New Materials Co., Ltd., epoxy value is 0.48-0.54) mechanically stir and disperse at 800 rpm at 30°C for 5 minutes, add 0.5g kaolin, 10.0 g 1,4-butanediol diglycidyl ether, 0.5g γ-glycidyl etheroxypropyl trimethoxysilane, mechanically stir and disperse at a speed of 800 rpm for 10 minutes, then stand at room temperature for use, and 20.0 1g polyetheramine D230 and 10.0g triethylenetetramine were mechanically stirred and dispersed at room temperature at a speed of 600 rpm for 5 minutes, and 0.5g 2,4,6-tris(dimethylaminomethyl)phenol was added while stirring , mechanically stirred at a speed of 600 rpm for 5 minutes at room temperature. Mix the above components at room temperature, mechanically stir and disperse at a speed of 3000 rpm for 3 minutes, v...

Embodiment 2

[0028] Example 2: 80.0g hydantoin epoxy resin MHR-070 (purchased from Wuxi Meihua Chemical Co., Ltd., epoxy value 0.70-0.74), 20.0g bisphenol A glycidyl ether epoxy resin E-51 (purchased from Wuxi Resin Factory of Bluestar Chemical New Materials Co., Ltd., epoxy value 0.48-0.54) mechanically stir and disperse at 900 rpm at 40°C for 8 minutes, add 2.5g of kaolin, 20.0 g 1,4-butanediol diglycidyl ether, 2.5g γ-glycidyl etheroxypropyl trimethoxysilane, mechanically stirred and dispersed at a speed of 900 rpm for 10 minutes, then stood at room temperature for use, and 40.0 1g polyetheramine D230 and 5.0g triethylenetetramine were mechanically stirred and dispersed at room temperature at a speed of 600 rpm for 5 minutes, and 5.0g 2,4,6-tris(dimethylaminomethyl)phenol was added while stirring , at room temperature with mechanical stirring at a speed of 600 rpm for 10 minutes. Mix the above components at room temperature, mechanically stir and disperse at a speed of 3000 rpm for 5 m...

Embodiment 3

[0029] Example 3: 80.0g hydantoin epoxy resin MHR-070 (purchased from Wuxi Meihua Chemical Co., Ltd., epoxy value 0.70-0.74), 20.0g 4,5-epoxycycloethane-1,2- Diglycidyl dicarboxylate TDE-86 (purchased from Tianjin Jingdong Chemical Composite Material Co., Ltd., epoxy value 0.88) was mechanically stirred at 1000 rpm for 8 minutes at 40°C, and 5.0 g aluminum hydroxide, 10.0 g cyclohexanediol diglycidyl ether, 5.0 g γ-(methacryloyloxy) propyltrimethoxysilane, mechanically stir and disperse at a speed of 1000 rpm for 10 minutes at room temperature Stand still for use, 32.0g polyetheramine D230, 8.0g polyetheramine D2000 and 5.0g tetraethylenepentamine were mechanically stirred and dispersed at room temperature at a speed of 700 rpm for 10 minutes, and 2.5g three Boroethylamine fluoride was mechanically stirred and dispersed at room temperature at a speed of 700 rpm for 10 minutes. Mix the above components at room temperature, mechanically stir and disperse at a speed of 3500 rpm ...

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Abstract

The invention relates to an epoxy resin composition for vacuum introduction formation of a fibre reinforced composite material and a preparation method of the epoxy resin composition. The epoxy resin composition comprises a component A and a component B, wherein the component A comprises the following ingredients in parts by mass: 100 parts of epoxy resin, 5-20 parts of diluent, 0.5-5.0 parts of silane coupling agent, 0.5-5.0 parts of inorganic filler; and the component B comprises the following ingredients in parts by mass: 25-45 parts of amine curing agent and 0.5-5.0 parts of accelerant. According to the invention, blend type epoxy resins of hydantoin epoxy resins and low-viscosity epoxy resins (4,5-epoxy cyclohexane-1,2-dioctyl phthalate diglycidyl ester, bisphenol F type glycidyl ether epoxy resin or bisphenol A type glycidyl ether epoxy resin) are adopted as a resin matrix, so that the requirement of vacuum introduction formation of the fibre reinforced composite material for the resin low viscosity can be met, and a composite material product has excellent high temperature resistance property.

Description

technical field [0001] The invention relates to an epoxy resin composition and a preparation method thereof, in particular to an epoxy resin composition suitable for a fiber-reinforced composite material vacuum introduction molding process and a preparation method thereof. Background technique [0002] Vacuum infusion process (Vacuum infusion proccss, referred to as VIP) appeared in patent records in 1950, and has a history of more than 50 years. Its principle is to spread "dry" reinforcement materials (glass fiber, carbon fiber, sandwich materials, etc.) on the mold, Then seal it with a vacuum bag, and pump the system to a vacuum state to form a negative pressure in the mold cavity, and then use the pressure generated by the vacuum to press the resin into the fiber layer through the top-laying pipeline, so that the resin can infiltrate the reinforcing material Finally fill the entire mold. After the product is cured, the vacuum bag material is removed to obtain the desired...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L63/02C08K3/34C08K3/22C08G59/50
Inventor 杨刚孟秀青胡伟刘欣彤
Owner BLUESTAR BEIJING CHEM MACHINERY
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