Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for improving interface properties of fiber-reinforced thermoplastic composite material

A composite material and fiber-reinforced technology, applied in the field of composite materials, can solve the problems of not improving the interfacial properties of composite materials, poor interfacial properties of thermoplastic composite materials, and difficulty in fully impregnating fibers, etc., so as to facilitate stress transfer, increase interface strength, The effect of lowering the molding temperature

Inactive Publication Date: 2014-08-13
WUHAN UNIV OF TECH
View PDF2 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Thermoplastics have poor compatibility with fibers, high melt viscosity, and difficulty in fully impregnating fibers, all of which are important factors leading to poor interfacial properties of thermoplastic composites
Although the surface treatment of fibers by heat treatment, coupling agent treatment, acid-base treatment, plasma treatment and other methods can improve the interfacial properties of thermoplastic composites to a certain extent, but there is no aim to improve the cross-linkable monomers through low viscosity or Patent for the fiber treatment method of the interfacial properties of the composite material with oligomer modified thermoplastic as the matrix

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
  • Method for improving interface properties of fiber-reinforced thermoplastic composite material
  • Method for improving interface properties of fiber-reinforced thermoplastic composite material
  • Method for improving interface properties of fiber-reinforced thermoplastic composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Polyvinyl chloride (PVC) plastic 100 parts; Diallyl phthalate (DAOP) 25 parts; Dicumyl peroxide (DCP) 0.8 parts; Ca / Mg composite stabilizer 8 parts; Zinc stearate 2 parts, DAOP modified PVC plastic matrix was obtained by mixing and plasticizing; DAOP liquid was impregnated with glass fiber grid cloth, and then the excess liquid was removed with a scraper.

[0034] The kneading sheet and the fiber cloth are cross-stacked, including 80 parts of the kneading sheet and 20 parts of the glass fiber grid cloth, and the molding process is adopted. It is found through tensile and bending tests that the tensile and bending strengths of the GF / PVC laminate prepared by the invention are respectively increased by 15% and 21% compared with the untreated GF / PVC composite material.

Embodiment 2

[0035] Example 2: 100 parts of polyvinyl chloride (PVC) plastics; 25 parts of diallyl phthalate (DAOP); 0.8 parts of dicumyl peroxide (DCP); 8 parts of Ca / Mg composite stabilizer; 2 parts of zinc stearate, the DAOP modified PVC plastic matrix was obtained by banburying and plasticizing; the DAOP liquid was impregnated with glass fiber grid cloth, and then the excess liquid was removed with a scraper.

[0036] The kneading sheet and the fiber cloth are cross-stacked, including 70 parts of the kneading sheet and 30 parts of the glass fiber grid cloth, and the molding process is adopted. It is found through tensile and bending tests that the tensile and bending strengths of the GF / PVC laminate prepared by the invention are respectively increased by 20% and 28% compared with the untreated GF / PVC composite material.

Embodiment 3

[0037]Example 3: 100 parts of polyvinyl chloride (PVC) plastics; 25 parts of diallyl phthalate (DAOP); 0.8 parts of dicumyl peroxide (DCP); 8 parts of Ca / Mg composite stabilizer; 2 parts of zinc stearate, the DAOP modified PVC plastic matrix is ​​obtained by banburying and plasticizing; the DAOP liquid is impregnated with glass fiber grid cloth, and then the excess liquid is removed with a scraper.

[0038] The kneading sheet and the fiber cloth are cross-stacked, including 60 parts of the kneading sheet and 40 parts of the glass fiber grid cloth, and the molding process is adopted. It is found through tensile and bending tests that the tensile and bending strengths of the GF / PVC laminate prepared by the invention are respectively increased by 17% and 22% compared with the untreated GF / PVC composite material.

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 discloses a method for improving the interface properties of a fiber-reinforced thermoplastic composite material. The fiber is subjected to surface treatment by use of low-viscosity crosslinking monomer or oligomer, the compatibility with thermoplastic plastic is improved, and the capacity of the fiber being impregnated by the matrix is enhanced to achieve an aim of improving the interface properties of the fiber-reinforced thermoplastic composite material; the fiber-reinforced thermoplastic composite material consists of the following components in parts by weight: 30-80 parts of modified thermoplastic plastic and 20-70 parts of fiber after the surface treatment by the monomer or oligomer, wherein the monomer or oligomer is low-viscosity crosslinking monomer or oligomer. The method disclosed by the invention is simple to operate, does not need special production equipment, is suitable for preparing a thermoplastic composite material by the forming processes such as mould pressing, extrusion, injection and the like, and can be widely applied to the fields such as aerospace, civil engineering, petrochemical industry and the like.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to a method for improving the interface properties of fiber-reinforced thermoplastic composite materials. Background technique [0002] Thermoplastic composite materials are based on thermoplastics, such as polyvinyl chloride, polypropylene, polyethylene, polycarbonate and their copolymers, etc., and various fiber products or fillers are used as reinforcing materials, and are prepared by certain molding techniques. A green composite material developed by the company has broad market prospects and good economic and social benefits. However, the high melt viscosity of many thermoplastics with excellent thermodynamic properties makes it difficult to form the plastic itself and its composite materials, especially difficult to impregnate the fibers well, and the interface between the fibers and the matrix is ​​poorly bonded. Although increasing the molding temperature can reduce the v...

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
IPC IPC(8): C08J5/06C08J5/08C08L27/06C08L71/12C08L69/00C08K5/12C08K5/14C08K5/098C08K7/14
Inventor 梅启林刘秀娟黄志雄丁雨洁童丹辽肖骏
Owner WUHAN UNIV OF TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com