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

Preparation method of high-solid-content polyether-ether-ketone aqueous suspension and composite fiber

A polyetheretherketone, high solid content technology, used in carbon fiber, fiber processing, textiles and papermaking, etc., can solve the problems of unsatisfactory impregnation effect and uneven resin distribution, improve the interface effect and impregnation effect, and improve static electricity. The effect of placing stability and improving hydrophilicity

Pending Publication Date: 2022-05-10
EAST CHINA UNIV OF SCI & TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, composite material prepregs prepared by commonly used powder impregnation, melt impregnation and other prepreg methods have problems such as uneven resin distribution and unsatisfactory impregnation effect. How to overcome the above traditional preimpregnation methods to obtain better impregnation effect and interface interaction , so as to obtain continuous carbon fiber reinforced polyether ether ketone composites with excellent comprehensive properties is an important problem in the field of plastic modification that needs to be studied and solved

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
  • Preparation method of high-solid-content polyether-ether-ketone aqueous suspension and composite fiber
  • Preparation method of high-solid-content polyether-ether-ketone aqueous suspension and composite fiber
  • Preparation method of high-solid-content polyether-ether-ketone aqueous suspension and composite fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The preparation method of the present invention is used to prepare polyether ether ketone aqueous suspension with high solid content, and the static stability of the suspension under different preparation conditions is tested. The main influencing factor is the pH value of the suspension on the static stability of the suspension. Influence, the raw materials used are as follows:

[0036] Polyetheretherketone resin powder (Jilin Zhongyan 330UPF, 950 mesh, powder particle size 18μm).

[0037] The preparation steps of high solid content polyetheretherketone aqueous suspension are as follows:

[0038] Use an ultrasonic oscillator to uniformly disperse 1g of sodium lauryl sulfate in 19g of acid solution, hydrochloric acid solution or alkali solution, sodium hydroxide solution, and adjust the pH of the solution to 2, 3, 4, 5, 6, 7, 8 , 9, 10, 11, 12, until the solution is transparent and clear; weigh 5g of polyetheretherketone resin powder in a beaker, drop the solution drop...

Embodiment 2

[0043] The preparation method of the present invention is used to prepare polyetheretherketone aqueous suspension with high solid content, and the static stability of the suspension under different preparation conditions is tested, mainly testing the effect of the ratio of the compound surfactant on the static stability of the suspension , using the same raw materials as in Example 1.

[0044] A total of 1g of surfactant is uniformly dispersed in 19g of deionized water with an ultrasonic oscillator until the solution is transparent and clear, and the mass ratios of sodium lauryl sulfate and polyethylene glycol monostearate in the surfactant are respectively 1 :3, 1:2, 1:1, 2:1, 3:1; Weigh 5g of polyetheretherketone resin powder in a beaker, drop the solution dropwise into the beaker, and control the magnetic stirrer during the dropping process The rotational speed was 500 rpm; after the solution was completely added dropwise, the stirring was continued for 60 minutes, and the ...

Embodiment 3

[0054] The carbon fiber-reinforced polyetheretherketone composite fiber is prepared by the preparation method of the invention, and the mechanical properties of the composite fiber are measured under different preparation conditions. The raw materials used are as follows:

[0055] Polyetheretherketone resin powder (Jilin Zhongyan 330UPF, 950 mesh, powder particle size 18μm).

[0056] Carbon fiber (Japan Toray T700SC, 12K continuous carbon fiber, single filament diameter 6.8μm)

[0057] Use an ultrasonic oscillator to disperse 1g of polyethylene glycol monostearate evenly in 19g of deionized water until the solution is transparent and clear; weigh 5g of polyetheretherketone resin powder in a beaker, drop the solution into the beaker drop by drop, During the addition process, the rotational speed of the magnetic stirrer was controlled to be 500 rpm; after the solution was completely added dropwise, the stirring was continued for 60 minutes, and the stirring temperature was cont...

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
particle diameteraaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of high-solid-content polyether-ether-ketone aqueous suspension and composite fiber, the suspension comprises dispersed-phase polyether-ether-ketone resin powder, a surfactant and continuous-phase deionized water, and the solid content is 10-40 (mass)%; the composite fiber comprises a carbon fiber reinforced polyether-ether-ketone composite fiber, and the preparation method comprises the following steps: uniformly dispersing a surfactant in deionized water, adjusting the pH value of the solution to 2-12 by using an acid solution or an alkali solution, dropwise mixing the mixed solution with polyether-ether-ketone resin powder to form a suspension, then coating the suspension on the surface of the carbon fiber, and drying to obtain the carbon fiber reinforced polyether-ether-ketone composite fiber. And drying, standing in a heat setting device at constant temperature, and cooling to obtain the product. The polyether-ether-ketone aqueous suspension is good in standing stability, raw materials are easy to obtain, the polyether-ether-ketone aqueous suspension is environmentally friendly, the surface of carbon fibers can be evenly coated with the polyether-ether-ketone aqueous suspension to form composite fibers, the interface interaction between the fibers and resin is improved, and the obtained composite fibers are good in mechanical property.

Description

technical field [0001] The invention belongs to the technical field of plastic modification, and in particular relates to a preparation method of high-solid-content polyetheretherketone aqueous suspension and composite fiber. Background technique [0002] Carbon fiber is prepared from precursors such as polyacrylonitrile fiber, viscose fiber and pitch through oxidation, carbonization and graphitization, and is the most widely used fiber in modern industry. Carbon fiber reinforced composite materials have significant advantages such as high specific strength, high specific modulus, high temperature resistance, corrosion resistance, high damage tolerance, and strong designability. Compared with carbon fiber reinforced thermosetting materials, carbon fiber reinforced thermoplastic materials have stronger resistance. Impact toughness and higher damage tolerance, but also has the advantages of short molding cycle, low recycling cost, and repeatable processing. [0003] Thermopla...

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): C08L61/16C08L71/02C08K5/41C08J3/03D06M15/41D06M101/40
CPCC08J3/03D06M15/41C08J2361/16C08J2471/02C08K5/41D06M2101/40
Inventor 周晓东方天韵马辉煌刘海艳
Owner EAST CHINA UNIV OF SCI & TECH