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

Preparation method for high-dispersity carbon fiber

A high-dispersibility, carbon fiber technology, applied in the direction of fiber chemical characteristics, textiles and papermaking, rayon chemical post-treatment, etc., can solve the problems of low strength, poor carbon fiber dispersibility, etc., to promote wettability, improve dispersibility, The effect of shortening the time

Inactive Publication Date: 2015-04-29
SICHUAN CHUANGYUE CARBON MATERIAL
View PDF5 Cites 18 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 technical problems of existing carbon fibers with low strength and poor carbon fiber dispersion in the preparation process, and to provide a preparation method of highly dispersible carbon fibers

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of preparation method of highly dispersible carbon fiber in the present embodiment, it comprises the following steps:

[0028] 1) Oiling and bundling: During the melt-spinning process of pitch carbon fiber precursors, spinning oil tankers are used to integrate the precursors into 48K fiber bundles with inorganic solid particle clustering oils. The oiling rate of inorganic solid particle clustering oils is asphalt 1.5% of the weight of carbon fiber precursor;

[0029] 2) chopping: cutting the oiled fiber bundles into 120mm chopped strands;

[0030] 3) Pre-melting treatment: Treat the chopped strands with hot air at a temperature of 250°C and a wind speed of 10m / s for 1h;

[0031] 4) Spray wetting and penetrating agent: mix high-temperature-resistant fluorocarbon surfactant, water-soluble silicone oil and water to prepare a penetrating agent with a surface tension of 35 dyn / cm, and use the penetrating agent to treat the chopped strands after pre-infusion treatment...

Embodiment 2

[0037] A kind of preparation method of highly dispersible carbon fiber in the present embodiment, it comprises the following steps:

[0038] 1) Oiling and bundling: During the melt-spinning process of pitch carbon fiber precursors, spinning oil tankers are used to integrate the precursors into 10K fiber bundles with inorganic solid particle clustering oils. The oiling rate of inorganic solid particle clustering oils is asphalt 1.0% by weight of carbon fiber precursor;

[0039] 2) chopping: cutting the oiled fiber bundles into 8mm chopped strands;

[0040] 3) Pre-melting treatment: Treat the chopped strands with hot air at a temperature of 180°C and a wind speed of 6m / s for 0.8h;

[0041] 4) Spray wetting and penetrating agent: mix high-temperature-resistant fluorocarbon surfactant, water-soluble silicone oil and water to prepare a penetrating agent with a surface tension of 25 dyn / cm, and use the penetrating agent to treat the chopped strands after pre-infusion treatment. Sp...

Embodiment 3

[0047] A kind of preparation method of highly dispersible carbon fiber in the present embodiment, it comprises the following steps:

[0048] 1) Oiling and bundling: During the melt-spinning process of pitch carbon fiber precursors, spinning oil tankers are used to integrate the precursors into 1K fiber bundles with inorganic solid particle clustering oils. The oiling rate of inorganic solid particle clustering oils is asphalt 0.1% of the weight of carbon fiber precursor;

[0049] 2) chopping: cutting the oiled fiber bundles into 2mm chopped strands;

[0050] 3) Pre-melting treatment: Treat the chopped strands with hot air at a temperature of 100°C and a wind speed of 1m / s for 0.5h;

[0051] 4) Spray wetting and penetrating agent: mix high-temperature-resistant fluorocarbon surfactant, water-soluble silicone oil and water to prepare a penetrating agent with a surface tension of 10 dyn / cm, and use the penetrating agent to treat the chopped strands after pre-infusion treatment. S...

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

PropertyMeasurementUnit
surface tensionaaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of preparation methods of carbon fibers, and particularly relates to a preparation method for a high-dispersity carbon fiber. The preparation method mainly solves the technical problem that conventional carbon fibers are low in strength, and is low in dispersity during preparation processes, and is characterized by comprising the steps of oil applying and bunching, short cutting, pre-non-melting treatment, penetrant spraying, non-melting treatment, high heat treatment and starching. The preparation method has the advantages that the strength of the carbon fiber is high, and the dispersity of the carbon fiber in the preparation process is good.

Description

technical field [0001] The invention belongs to the technical field of carbon fiber preparation methods, and in particular relates to a preparation method of highly dispersible carbon fibers. Background technique [0002] With the rapid development of science and technology and the electronic industry, and the widespread use of various electronic products, electromagnetic wave interference has become a new social hazard. At the same time, the shell materials of electronic products currently used in large quantities have replaced the original metal or effective shielding materials by rubber and plastic materials, and rubber and plastic materials are usually insulators and do not have electromagnetic shielding functions. Therefore, research on anti-static and electromagnetic shielding conductive materials is of great significance. [0003] Existing conductive plastic and rubber composite materials are mostly prepared by blending carbon black, metal powder, plastic and rubber....

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): D01F9/145D01F11/14D01F11/12
Inventor 白峰康秀珍伍孝
Owner SICHUAN CHUANGYUE CARBON MATERIAL
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