Composite material member with surface function layer and VIMP preparation method thereof

A composite material component and composite material technology, applied in the field of composite materials and their preparation, can solve the problems of not being able to impart a surface layer to the product, and achieve the effects of increasing stiffness, fast impregnation, and good surface quality

Inactive Publication Date: 2010-09-15
NAT UNIV OF DEFENSE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional VIMP process just places the fiber reinforcement directly on a rigid mold, then uses vacuum negative pressure to infuse the resin system, impregnates the fiber reinforcement, and th

Method used

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  • Composite material member with surface function layer and VIMP preparation method thereof
  • Composite material member with surface function layer and VIMP preparation method thereof
  • Composite material member with surface function layer and VIMP preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0039] Example 1:

[0040] Preparation of composite material head cover for train locomotive

[0041] Using the preparation method of the present invention to prepare a composite material head cover for train locomotives specifically includes the following steps:

[0042] 1. Prepare the mold

[0043] According to the pre-designed train locomotive head cover structure size, such as image 3 Mold 1 shown.

[0044] 2. RFI process to prepare reinforced resin film

[0045] 2.1 Cutting and laying reinforcement material: cutting reinforcement material used to prepare reinforced resin film, the reinforcement material is made of alkali-free glass fiber 02 plain cloth (purchased from Jiangsu Danyang Zhongya Glass Fiber Co., Ltd.), according to the shape and size of mold 1. Cut three layers of non-alkali glass fiber 02 plain weave cloth, and then image 3 As shown, the surface fiber preform 2 is obtained by overlaying and laying on the surface of the mold 1;

[0046] 2.2 Dip coating the first resin...

Example Embodiment

[0056] Example 2:

[0057] Preparation of large-scale glass fiber reinforced plastic composite material hull shell

[0058] Using the preparation method of the present invention to prepare a large-scale glass fiber reinforced plastic composite material component used as a hull shell specifically includes the following steps:

[0059] 1. Prepare the mold

[0060] A single-sided rigid mold for molding is prepared according to the pre-designed structural dimensions of the hull shell.

[0061] 2. RFI process to prepare reinforced resin film

[0062] 2.1 Cutting and laying reinforcement material: cutting reinforcement material used to prepare reinforced resin film, the reinforcement material is non-alkali glass fiber 02 plain weave cloth (purchased from Jiangsu Danyang Zhongya Glass Fiber Co., Ltd.), cut according to the shape and size of the mold Layer of non-alkali glass fiber 02 plain weave cloth, and then overlay it on the mold surface in turn;

[0063] 2.2 Dip coating the first resin sys...

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Abstract

The invention belongs to the technical field of a multilayer structural composite material member and a preparation method thereof and specifically discloses the composite material member with a surface function layer and a VIMP preparation method thereof. The composite material member comprises an outer surface layer and a main body layer, wherein, the outer surface layer and the main body layer are respectively a first composite material system and a second composite material system; and the first composite material system takes epoxy resin, phenolic resin and the like as a matrix, the second composite material system takes unsaturated polyester resin as a matrix, and the two systems take fiber cloth of carbon fiber or glass fiber as reinforcement. The VIMP preparation method comprises the following steps: firstly preparing a reinforced resin film on a die surface for vacuum dip molding by a resin film infiltration process, and then preparing the composite material member with a molding die covered with the reinforced resin film through the vacuum dip molding process. The VIMP process of the invention combines the double advantages of an RFI process and the VIMP process; and the obtained composite material member has better surface quality, better integrity and excellent comprehensive performances.

Description

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Claims

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Application Information

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Owner NAT UNIV OF DEFENSE TECH
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