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

Waste-carbon-fiber-reinforced polybutylene terephthalate composite material and preparation method thereof

A technology of polybutylene terephthalate and composite materials, which is applied in the field of improving the interface performance between fibers and substrates, can solve the problems of expensive carbon fibers, etc., and achieve good market prospects, high toughness, and good conductivity Effect

Inactive Publication Date: 2012-12-19
BEIJING UNIV OF CHEM TECH
View PDF13 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that carbon fiber is expensive in the current market, by using carbon fiber waste silk obtained from recycled waste resin-based carbon fiber composite materials as a reinforcing material for polybutylene terephthalate, thereby providing a High strength and high modulus, heat resistance, high dimensional stability, creep resistance, antistatic carbon fiber waste silk reinforced polybutylene terephthalate composite material

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
  • Waste-carbon-fiber-reinforced polybutylene terephthalate composite material and preparation method thereof
  • Waste-carbon-fiber-reinforced polybutylene terephthalate composite material and preparation method thereof
  • Waste-carbon-fiber-reinforced polybutylene terephthalate composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0027] First put the carbon fiber waste silk in a nitric acid solution with a mass percentage concentration of 37% for 2 hours, then wash it with clean water, and then put the carbon fiber waste silk in an epoxy resin solution with a mass percentage concentration of 3 wt.% for 5 hours. Hours, the solvent is a solution of water and ethanol with a volume ratio of 1:1. After the epoxy resin is fully adsorbed on the carbon fiber, it is then fully dried in a vacuum oven at 90°C. Weigh polybutylene terephthalate, carbon fiber waste, toughening agent, and antioxidant according to the following mass percentages.

[0028]

[0029] The polybutylene terephthalate, the toughening agent and the antioxidant are placed in the mixer and mixed evenly, and then the mixed materials are fed into the twin-screw extruder through a hopper. At the same time, the carbon fiber waste after surface treatment is fed from the exhaust port located in the middle of the barrel through a side feeding device...

example 2

[0031] First put the carbon fiber waste silk in a nitric acid solution with a mass percentage concentration of 37% for 2 hours, then wash it with clean water, and then put the carbon fiber waste silk in an epoxy resin solution with a mass percentage concentration of 3 wt.% for 5 hours. Hours, the solvent is a solution of water and ethanol with a volume ratio of 1:1. After the epoxy resin is fully adsorbed on the carbon fiber, it is then fully dried in a vacuum oven at 90°C. Weigh polybutylene terephthalate, carbon fiber waste, toughening agent, and antioxidant according to the following mass percentages.

[0032]

[0033] Put the weighed polybutylene terephthalate, toughening agent and antioxidant in the mixer and mix evenly, then feed the mixed materials into the twin-screw extruder through the hopper. At the same time, the carbon fiber waste after surface treatment is fed from the exhaust port located in the middle of the barrel through a side feeding device equipped with...

example 3

[0035] First put the carbon fiber waste silk in a nitric acid solution with a mass percentage concentration of 37% for 2 hours, then wash it with clean water, and then put the carbon fiber waste silk in an epoxy resin solution with a mass percentage concentration of 3 wt.% for 5 hours. Hours, the solvent is a solution of water and ethanol with a volume ratio of 1:1. After the epoxy resin is fully adsorbed on the carbon fiber, it is then fully dried in a vacuum oven at 90°C. Weigh polybutylene terephthalate, carbon fiber waste, toughening agent, and antioxidant according to the following mass percentages.

[0036]

[0037] The polybutylene terephthalate, the toughening agent and the antioxidant are placed in the mixer and mixed evenly, and then the mixed materials are fed into the twin-screw extruder through a hopper. At the same time, the carbon fiber waste after surface treatment is fed from the exhaust port located in the middle of the barrel through a side feeding device...

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 relates to a waste-carbon-fiber-reinforced polybutylene terephthalate composite material and a preparation method thereof, belonging to the field of polymer-base composite material. The composite material is prepared from 65.0-90.0 wt.% of reinforced polybutylene terephthalate, 5.0-30 wt.% of waste carbon fiber subjected to surface treatment, 0.1-0.3 wt.% of antioxidant and 3.0-8.0 wt.% of toughener. The preparation method comprises the following steps: cleaning the surface of waste carbon fibers, activating and drying; adding the waste carbon fibers into a double screw extruder through a side feed port; carrying out melt blending extrusion on the waste carbon fibers with polybutylene terephthalate, a toughener and an antioxidant by using the double screw extruder; and drawing the extruded melt, cooling with water, screening, granulating and drying. The composite material has the characteristics of high strength, high modulus, high toughness, high heat deformation temperature, favorable heat resistance, favorable static resistance, wear resistance and creep resistance; and the product has the advantages high cost performance and simple preparation method, and can be widely used in the fields of electronic and electric parts, automobile accessories, household appliances and the like.

Description

technical field [0001] The invention belongs to the field of polymer-based composite materials and their molding processing, in particular to a carbon fiber waste silk reinforced polybutylene terephthalate (PBT) composite material and its preparation method, in particular to a carbon fiber waste silk surface Processing technology, a method to improve the interface properties between the fiber and the matrix. The invention can obtain a high-performance composite material with high strength, high modulus, high toughness, high thermal deformation temperature, high wear resistance, creep resistance and antistatic properties. The carbon fiber reinforced material adopted in the invention is recycled carbon fiber waste silk, which can significantly reduce the cost of raw materials, and the prepared composite material has excellent performance and simple processing technology, showing good economic benefits and application prospects. Background technique [0002] Polybutylene terep...

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 Applications(China)
IPC IPC(8): C08L67/02C08L51/06C08L51/00C08K9/10C08K9/06C08K9/02C08K7/06B29B9/06B29B13/06
Inventor 汪晓东陈勇武德珍
Owner BEIJING UNIV OF CHEM 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