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Carbon Fiber Vacuum Infused Epoxy

An epoxy resin and vacuum infusion technology, which is applied in the fields of final product manufacturing, wind power generation, and climate sustainability, can solve problems such as insufficient bending strength, insufficient tensile strength, and low interlayer shear toughness, and achieve high tensile strength Excellent tensile strength and bending strength

Active Publication Date: 2022-07-08
广东博汇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

[0003] In the current vacuum infusion process, the defects of insufficient tensile strength, insufficient bending strength and low interlayer shear toughness of carbon fiber epoxy resin-based composite materials limit its application and development. The purpose of this invention is to provide carbon fiber vacuum Pouring epoxy resin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Carbon fiber vacuum infusion epoxy resin, including carbon fiber woven cloth and epoxy resin cured product, epoxy resin cured product is obtained by mixing resin system and curing system with a weight ratio of 100:35;

[0050] Wherein, the resin system is calculated according to parts by weight, including the following components:

[0051] 100 parts of modified epoxy resin, 3 parts of flame retardant, 0.4 part of defoamer and 0.4 part of dispersant;

[0052] Wherein, the curing system is calculated according to parts by weight and includes the following components:

[0053] 100 parts curing agent and 20 parts curing accelerator.

[0054] The mass ratio of carbon fiber woven cloth to epoxy resin is 1:0.48.

[0055] The thickness of the carbon fiber woven cloth is 15mm, and the specific gravity of the carbon fiber used is 1.7-1.8g / cm 3 .

[0056] The flame retardant is bisphenol A bis(diphenyl) phosphate, the defoamer is polysiloxane defoamer, the dispersant is polyte...

Embodiment 2

[0072] Carbon fiber vacuum infusion epoxy resin, including carbon fiber woven cloth and epoxy resin cured product, epoxy resin cured product is obtained by mixing resin system and curing system with a weight ratio of 100:25;

[0073] Wherein, the resin system is calculated according to parts by weight, including the following components:

[0074] 100 parts of modified epoxy resin, 1 part of flame retardant, 0.3 part of defoamer and 0.2 part of dispersant;

[0075] Wherein, the curing system is calculated according to parts by weight and includes the following components:

[0076] 100 parts hardener and 15 parts cure accelerator.

[0077] The mass ratio of carbon fiber woven cloth and epoxy resin is 1:0.42.

[0078] The thickness of the carbon fiber woven cloth is 5mm, and the specific gravity of the carbon fiber used is 1.7-1.8g / cm 3 .

[0079] The flame retardant is tricresyl phosphate, the defoamer is polyether defoamer, the dispersant is ethylene bis-stearamide, the cur...

Embodiment 3

[0095] Carbon fiber vacuum infusion epoxy resin, including carbon fiber woven cloth and epoxy resin cured product, epoxy resin cured product is obtained by mixing resin system and curing system with a weight ratio of 100:50;

[0096] Wherein, the resin system is calculated according to parts by weight, including the following components:

[0097] 100 parts of modified epoxy resin, 5 parts of flame retardant, 0.5 part of defoamer and 0.6 part of dispersant;

[0098] Wherein, the curing system is calculated according to parts by weight and includes the following components:

[0099] 100 parts hardener and 25 parts cure accelerator.

[0100] The mass ratio of carbon fiber woven cloth to epoxy resin is 1:0.56.

[0101] The thickness of the carbon fiber woven cloth is 20mm, and the specific gravity of the carbon fiber used is 1.7-1.8g / cm 3 .

[0102] The flame retardant is tert-butylated triphenyl phosphate, the defoamer is a silicone defoamer, the dispersant is polytetrafluoro...

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Abstract

The invention discloses carbon fiber vacuum infusion epoxy resin, including carbon fiber woven cloth and epoxy resin cured product. The epoxy resin cured product is obtained by mixing a resin system and a curing system with a weight ratio of 100:25-50; wherein, the resin system is Calculated in parts by weight, it includes the following components: 100 parts of modified epoxy resin, 1 to 5 parts of flame retardant, 0.3 to 0.5 parts of defoamer and 0.2 to 0.6 parts of dispersant; wherein, the curing system is calculated in parts by weight , including the following components: 100 parts of curing agent and 15 to 25 parts of curing accelerator. The carbon fiber vacuum infusion epoxy resin prepared by the present invention is different from the conventional composite epoxy resin and carbon fiber. The epoxy resin used in the present invention is obtained after modification, and the modified epoxy resin is prepared by treating with carbon fiber. The resulting composites have higher strength, better toughness, and higher interlaminar shear strength.

Description

technical field [0001] The invention relates to the field of epoxy resins, in particular to carbon fiber vacuum infusion epoxy resins. Background technique [0002] The vacuum infusion process is a liquid molding technology for preparing large-scale composite products. The vacuum infusion process can be formed at low pressure, the whole process can be carried out at room temperature, and the energy consumption is low. In the vacuum environment, the resin infiltrates the carbon fiber, and there are very few air bubbles in the product. Epoxy resin is a high-strength engineering material with excellent performance. Its excellent weather resistance is the best choice for making blades of wind power systems, ships, yachts and car bodies. Excellent properties such as high strength and corrosion resistance can also be well expressed. However, in the current vacuum infusion process, the surface of the carbon fiber is chemically inert, and it is difficult to effectively impregnate ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C08K7/06C08K9/06C08J5/24C08G59/14
CPCC08J5/24C08G59/1483C08J2363/00C08K7/06C08K9/06Y02P70/50
Inventor 兰军炎
Owner 广东博汇新材料科技有限公司