Polyether ether ketone fiber composite paper and preparation method thereof

A technology of polyetheretherketone fiber and polyetheretherketone, which is applied in the field of polyether ether ketone fiber composite paper and its preparation, can solve the problems of low paper performance and poor paper-forming properties of polyether ether ketone fiber paper, and achieve Improve paper yield and comprehensive performance, good tightness and easy operation

Active Publication Date: 2020-06-16
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a polyether ether ketone fiber composite paper and a preparation method thereof in order to solve the technical problems of poor paper-forming property and low paper performance of polyetheretherketone fiber paper in the prior art

Method used

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  • Polyether ether ketone fiber composite paper and preparation method thereof
  • Polyether ether ketone fiber composite paper and preparation method thereof
  • Polyether ether ketone fiber composite paper and preparation method thereof

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preparation example Construction

[0034] The preparation method of polyether ether ketone fiber composite paper of the present invention, the steps are as follows:

[0035] Step 1, using a degreasing agent and a surface treatment agent to perform degreasing treatment and surface treatment on the polyetheretherketone chopped fibers respectively, and after drying, obtain the treated polyether ether ketone chopped fibers;

[0036] Step 2, dispersing the treated polyetheretherketone chopped fibers and para-aramid pulp in an aqueous solution containing a dispersant, stirring and dispersing evenly, to obtain a fiber slurry;

[0037] Step 3: Vacuum filter the fiber slurry and dry to obtain polyether ether ketone fiber base paper;

[0038] Step 4, dissolving polyether ether ketone dioxoketone in an organic solvent to obtain an impregnation solution;

[0039] Step 5. Fully immerse the PEEK fiber base paper obtained in Step 3 in the impregnation solution, dry to remove the organic solvent, and heat press once to obtain...

Embodiment 1

[0055] Add 3mmPEEK chopped fibers to petroleum ether first, stir and wash, filter, and then add the concentration of 1.2×10 - 3 mol / L sodium dodecylbenzenesulfonate aqueous solution, stirring to loosen and disperse the fibers into a single state, and drying to obtain the treated PEEK chopped fibers. Disperse PEEK chopped fibers and para-aramid pulp with a mass ratio of 90:10 in 0.01% PEO aqueous solution, and stir at 3500 rpm for 2 hours to obtain fiber slurry. The fiber slurry is vacuum filtered and dried to obtain a polyether ether ketone fiber base paper. The polyetheretherketone-dioxone was dissolved in tetrahydrofuran to obtain an impregnation solution with a concentration of the polyetheretherketone-dioxone of 3%. Fully impregnate the polyetheretherketone fiber base paper with the impregnation solution, dry it, and perform a hot press after the solvent tetrahydrofuran is removed to obtain a preliminary polyetheretherketone fiber composite paper; The hot pressing time ...

Embodiment 2

[0057] Add 4mmPEEK chopped fibers to petroleum ether at a concentration of 1.2×10 -3 mol / L sodium dodecylbenzenesulfonate aqueous solution, stirring to loosen and disperse the fibers into a single state, and drying to obtain the treated PEEK chopped fibers. Disperse PEEK chopped fibers and para-aramid pulp with a mass ratio of 90:10 in 0.03% PEO aqueous solution, and stir at 20000 rpm for 2 hours to obtain fiber slurry. The fiber slurry is vacuum filtered and dried to obtain a polyether ether ketone fiber base paper. The polyetheretherketone-dioxone was dissolved in tetrahydrofuran to obtain an impregnation solution with a concentration of the polyetheretherketone-dioxone of 2%. Fully impregnate the polyetheretherketone fiber base paper with the impregnation solution, dry it, and perform a hot press after the solvent tetrahydrofuran is removed to obtain a preliminary polyetheretherketone fiber composite paper; The hot pressing time is 5min. The primary polyetheretherketone ...

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Abstract

The invention relates to poly(ether ether ketone) fiber composite paper and a preparation method thereof, and belongs to the technical field of composite paper. The technical problems of poor paper forming property and low paper performance of poly(ether ether ketone) fiber paper in the prior art are solved. The preparation method includes the following steps that first, a poly(ether ether ketone)chopped fiber and aramid pulp are dispersed in a solution containing a dispersant to obtain fiber slurry, then the fiber slurry is evenly settled to form dense poly(ether ether ketone) fiber originalpaper through vacuum filtration, poly(ether ether ketone) dioxo-ketone is impregnated, primary poly(ether ether ketone) fiber composite paper is prepared by one-time hot pressing, and finally the poly(ether ether ketone) fiber composite paper is obtained by acidification, hydrolyzation, and secondary hot pressing. The poly(ether ether ketone) fiber composite paper prepared by the method has goodcompactness, mechanical strength, heat resistance performance and voltage resistance strength, and can be used in the fields of high temperature protection, electrical insulation and honeycomb structures.

Description

technical field [0001] The invention belongs to the technical field of composite paper, and in particular relates to a polyether ether ketone fiber composite paper and a preparation method thereof. Background technique [0002] In recent years, high-performance fiber paper used in special fields such as insulation, flame retardancy, and high temperature resistance has become a research hotspot. The raw materials for preparing high-performance fiber paper mainly include aramid fiber, polyimide (P84) fiber, polytetrafluoroethylene (PTFE) fiber, basalt fiber, etc. Among them, the preparation technology of aramid fiber paper is the most mature, and its application is the most extensive; however, aramid fiber is not resistant to alkali, and its strength decreases greatly in an alkaline environment and below the dew point, and its dimensional stability becomes poor. These shortcomings limit its application. Application Environment. The patent whose publication number is CN193214...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21J3/12D21H27/00
CPCD21H27/00D21J3/12
Inventor 栾加双盖须召王贵宾张梅张淑玲李志成徐勤飞丛鑫
Owner JILIN UNIV
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