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Quantitative analysis method of polyether ether ketone in polyetheretherketone composite material

A technique for quantitative analysis of polyetheretherketone, applied in the field of quantitative analysis of polyetheretherketone in polyetheretherketone composite materials

Active Publication Date: 2018-10-12
SHANGHAI HANHAI TESTING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the main chain of polyether ether ketone contains a large number of aromatic ring structures, it is almost insoluble in any solvent at room temperature, and there is no method of solvent separation to determine the content of polyether ether ketone in polyether ether ketone composite materials. In addition , the high carbon residual rate of PEEK makes the method of inferring the content of PEEK in PEEK composite materials by determining the content of ash in the sample invalid.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0053] Embodiment 1, a quantitative analysis method of polyether ether ketone in a polyether ether ketone composite material, the quantitative analysis method includes the following steps:

[0054] 1) Raw material pulverization: pulverize the polyetheretherketone composite material, and the average particle diameter of the obtained fine powder is 50-200 μm;

[0055] 2) Purification treatment: Mix the fine powder in step 1) with an organic solvent and a surfactant, heat up to the glass transition temperature of polyetheretherketone and the boiling point of the organic solvent under normal pressure and stirring, and perform purification treatment. After completion, cooling down, suction filtration, washing, and drying to obtain purified fine powder;

[0056] 3) Sulfonation: Sulfonate the purified fine powder in step 2) with concentrated sulfuric acid, filter the reacted solution, pour the filtrate into ice-water mixture, stir, let it stand, and wash until the pH of the solution ...

Embodiment approach 2

[0058] Embodiment 2 is the same as Embodiment 1, except that the organic solvent in step 2) is liquid and measured in milliliters; the surfactant is liquid or solid and measured in grams; the fine powder is measured in grams Metering; the mass ratio of the volume of the organic solvent to the fine powder is 25-40:1; the mass ratio of the surfactant to the fine powder is 1-5:1.

Embodiment approach 3

[0059] Embodiment 3 is the same as Embodiment 1, except that the organic solvent in step 2) is hexamethylphosphoric triamide and / or N-methyl-2-pyrrolidone.

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PUM

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Abstract

The invention belongs to the field of polymer materials, and in particular relates to a quantitative analysis method for polyetheretherketone in polyetheretherketone composite materials. The quantitative analysis method of polyether ether ketone in the polyetheretherketone composite material includes the steps of raw material crushing, purification treatment, sulfonation, and detection. High accuracy.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a quantitative analysis method for polyetheretherketone in polyetheretherketone composite materials. Background technique [0002] Polyether ether ketone is a special engineering plastic with high heat resistance, which has the highest heat resistance among thermoplastics, and has excellent mechanical strength, electrical properties and radiation resistance. It can be processed by foundation, injection, pressing, etc. Therefore, due to the excellent comprehensive performance of polyetheretherketone, it is widely used in aerospace parts, automobiles, electronics, energy, medical and industrial fields . [0003] At present, polyether ether ketone is used in combination with other materials to achieve its more excellent performance. There is a good interfacial interaction between polyetheretherketone and carbon black, graphite and carbon fiber, etc., and the high-perfo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/28G01N1/34G01N1/44G01N30/02G01N24/08G01N21/3563G01N27/62
CPCG01N1/286G01N1/34G01N1/44G01N21/3563G01N24/082G01N27/62G01N30/02
Inventor 马浩朱雨生郭嘉琳卢天邦
Owner SHANGHAI HANHAI TESTING TECH CO LTD
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