Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Composite member vimp preparation method with surface functional layer

A composite material component and functional layer technology, applied in chemical instruments and methods, layered products, synthetic resin layered products, etc., can solve the problem of not being able to impart a surface layer to the product, and achieve increased stiffness, fast impregnation, and good surface quality. Effect

Inactive Publication Date: 2011-12-07
NAT UNIV OF DEFENSE TECH
View PDF0 Cites 0 Cited by
  • 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 then solidifies it at room temperature or under heating conditions; and the same process can only be used once. It is a kind of resin matrix, which cannot give special functions to the surface of the product

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Composite member vimp preparation method with surface functional layer
  • Composite member vimp preparation method with surface functional layer
  • Composite member vimp preparation method with surface functional layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Preparation of Composite Front Covers for Train Locomotives

[0041] Adopt preparation method of the present invention to prepare a kind of composite material head cover for locomotive, specifically comprise the following steps:

[0042] 1. Prepare the mold

[0043] According to the pre-designed locomotive head cover structure size prepared as follows image 3 Die 1 shown.

[0044] 2. Preparation of reinforced resin film by RFI process

[0045] 2.1 Cutting and laying reinforcing material: cutting the reinforcing material used to prepare the reinforced resin film. The reinforcing 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 the mold 1 Cut three layers of E-glass fiber 02 plain weave, and then image 3 The surface layer fiber preform 2 is obtained by sequentially stacking and laying on the surface of the mold 1 as shown;

[0046] 2.2 The first resin system...

Embodiment 2

[0057] Preparation of Large FRP Composite Hull Shell

[0058] Adopt the preparation method of the present invention to prepare a kind of large-scale fiberglass composite material member used as the hull shell, specifically comprising the following steps:

[0059] 1. Prepare the mold

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

[0061] 2. Preparation of reinforced resin film by RFI process

[0062] 2.1 Cutting and laying reinforcing material: cutting the reinforcing material used to prepare the reinforced resin film, the reinforcing material is alkali-free glass fiber 02 plain cloth (purchased from Jiangsu Danyang Zhongya Glass Fiber Co., Ltd.), and cutting three times according to the shape and size of the mould. A layer of non-alkali glass fiber 02 plain weave cloth, and then stacked on the surface of the mold in turn;

[0063] 2.2 The first resin system for dip coating: prepare a certain amount of 9...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of multi-layer composite material components and preparation methods thereof, and specifically discloses a VIMP preparation method of a composite material component with a surface functional layer. The composite material component includes an outer layer and a body layer. The layers are the first and second composite material systems; the first composite material system is based on epoxy resin, phenolic resin, etc., the second composite material system is based on unsaturated polyester resin, and each system is based on carbon fiber Or fiberglass cloth as reinforcement. The VIMP preparation method is to firstly adopt the resin film infiltration process to prepare a reinforced resin film on the surface of a vacuum dip molding process molding mold, and then use the molding mold covered with the reinforced resin film to prepare a composite product through a vacuum dip molding process. Material components. The VIMP process of the present invention combines the double advantages of the RFI process and the VIMP process, and the prepared composite material component has better surface quality, better integrity and excellent comprehensive performance.

Description

technical field [0001] The invention relates to a composite material and a preparation method thereof, in particular to a composite material member with a multilayer structure and a preparation method thereof. Background technique [0002] Low-pressure liquid molding technology (Liquid Composite Molding, referred to as LCM) is a molding process widely used in the preparation of large-scale composite components, which refers to injecting liquid polymer into a closed cavity with fiber preforms, or heating and melting The resin film pre-placed in the mold cavity, the liquid polymer completes the infiltration of the resin / fiber while flowing and filling the mold, and then solidifies and shapes it into a type of preparation technology. Vacuum Infusion Molding Process (hereinafter referred to as VIMP) and resin film infiltration (hereinafter referred to as RFI) are the most common advanced LCM process technologies. The LCM process technology can impregnate and form large-scale co...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/04B32B27/06B32B27/18B32B1/00B29C70/44B29C70/54
Inventor 肖加余曾竟成刘钧江大志杜刚邢素丽王春齐杨孚标彭超义尹昌平鞠苏
Owner NAT UNIV OF DEFENSE TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com