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Carbon fiber plate for vacuum infusion and preparation method thereof

A carbon fiber board and vacuum infusion technology, which is applied in the field of composite material manufacturing to achieve stable quality, improve interlayer adhesion and ensure stability.

Active Publication Date: 2021-06-01
威海光威能源新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the deficiencies of the prior art, the present invention provides a carbon fiber plate for vacuum infusion and its preparation method, which is not easy to form pore defects, can improve the adhesion between layers, and has high production efficiency and stable quality

Method used

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  • Carbon fiber plate for vacuum infusion and preparation method thereof
  • Carbon fiber plate for vacuum infusion and preparation method thereof
  • Carbon fiber plate for vacuum infusion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The total width of the carbon fiber plate is 100mm, the thickness is 2mm, the width A of the thinned area on both sides is 5mm, the single-sided thickness drop B between the thinned area and the middle area is 0.3mm, and the angle C between the transition area and the thinned area is 145°. The material of the protective cloth is nylon fiber, the thickness is 0.1mm, and the coverage of the protective cloth exceeds the transition zone by 1mm. The preparation method is as follows:

[0037] 1) The carbon fiber / epoxy resin wet pultrusion process is adopted, the carbon fiber on the creel 15 is infiltrated in the dipping tank 16, and the dipping tank 16 is equipped with a resin extracorporeal circulation mixing system.

[0038] 2) The dipped carbon fiber is adjusted through two preforming steps 17 , the temperature of the first step is controlled at 40° C., and the temperature of the second step is controlled at 60° C., and the protective cloth is introduced from the first pref...

Embodiment 2

[0043] The total width of the carbon fiber plate is 100mm, the thickness is 5mm, the width A of the thinning area on both sides is 10mm, the single-sided thickness difference B between the thinning area and the middle area is 0.5mm, and the angle C between the transition area and the thinning area is 170°. The material of the protective cloth is glass fiber, the thickness is 0.2mm, and the coverage of the protective cloth exceeds the transition zone by 2mm. The preparation method is as follows:

[0044] 1) The carbon fiber / epoxy resin wet pultrusion process is adopted, the carbon fiber on the creel 15 is infiltrated in the dipping tank 16, and the dipping tank 16 is equipped with a resin extracorporeal circulation mixing system.

[0045] 2) The dipped carbon fiber is adjusted by three pre-forming steps 17, the temperature of the first step is controlled at 45°C, the temperature of the second step is controlled at 65°C, the temperature of the third step is controlled at 85°C, an...

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Abstract

The invention relates to a carbon fiber plate for vacuum infusion and a preparation method thereof, belonging to the field of composite material manufacturing. The upper and lower sides of the main body of the carbon fiber plate are covered with upper and lower protective cloths. The upper and lower sides of the main body of the carbon fiber plate change from transition areas to thinning areas. The width of the thinning area is 5-10mm. The single-side thickness difference between the two sides is 0.3-0.5mm, and the angle between the transition zone and the thinning zone is 135°-170°. The carbon fiber / epoxy resin wet pultrusion process is adopted. After the carbon fiber on the creel is soaked in the dipping tank, it is preformed and adjusted together with the protective cloth and enters the pultrusion mold to heat up and solidify. Surface grinding treatment with the cleaning system, and finally the length is fixed with a cutting machine according to the length of the product. The impregnation tank is equipped with a resin extracorporeal circulation mixing system. The preforming is a temperature-controlled multi-channel preforming, and each preforming The templates used are designed in layers and equipped with heaters.

Description

technical field [0001] The invention relates to the field of composite material manufacturing, in particular to a carbon fiber plate for vacuum infusion and a preparation method thereof. Background technique [0002] As we all know, the vacuum infusion VRIM process is a liquid molding technology for preparing large-scale composite products. It is currently the most advanced high-performance and low-cost composite material preparation process in the world, and it is widely used in the field of wind power. The VRIM process can be formed at low pressure and only needs one atmospheric vacuum pressure without additional pressure). The whole process can be carried out at room temperature with low energy consumption. In a vacuum environment, the resin infiltrates the carbon fiber, and there are very few air bubbles in the product. In the vacuum infusion process, preformed carbon fiber plates are often used as embedded reinforcements, and multi-layer carbon fiber plates are mainly l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B9/04B32B9/00B32B27/02B32B17/02B32B27/12B32B17/12B32B27/34B29C70/54B29C70/52
CPCB29C70/521B29C70/525B29C70/526B29C70/545B29L2007/002B32B5/02B32B5/26B32B9/047B32B17/067B32B27/12B32B2250/03B32B2250/20B32B2262/0261B32B2262/101B32B2262/106
Inventor 李光友倪亭林凤森曲晓东殷娇娇
Owner 威海光威能源新材料有限公司