Preparation method of polyphenyl thioether-organic montmorillonite composite material

A technology of organic montmorillonite and polyphenylene sulfide, which is applied in the field of synthetic resins and plastics, can solve the problems of unstable melt viscosity, strength loss, affecting the application of high-temperature filter materials, etc., and achieves good anti-oxidation effect and improves chromaticity. Change and improve the effect of thermal oxidation resistance

Inactive Publication Date: 2017-05-31
SHAANXI HI-TECH IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since the C—S bond energy on the polyphenylene sulfide macromolecule is low, it is easy to break in a high temperature environment and react with oxygen in the air to cause oxidation and crosslinking. The melt viscosity of polyphenylene sulfide during fiber processing Unstable, the color of the prepared fiber is easy to become dark, and there is a large loss of strength when used in a high temperature environment, and the service life is shortened, which seriously affects its application as a high temperature filter material in high temperature flue gas dust removal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Preparation of organic montmorillonite

[0023] Prepare 400 mL of montmorillonite suspension with a mass fraction of 5% in a 1000 mL three-neck flask, stir mechanically at 800 r / min for 2 h, let stand for 24 h, and take the upper suspension; weigh 2 times the amount of montmorillonite Pour the cetyltrimethylammonium bromide that removes the ion exchange capacity of the soil cation into 200 mL of 0.1mol / L hydrochloric acid solution, stir evenly, and pour it into the montmorillonite suspension with a separatory funnel; Heat the bath to 60°C and stir mechanically; then vacuum the reaction solution to the filter cake, and check the filtrate during the suction filtration process until no silver bromide precipitates; finally dry the filter cake in a vacuum oven at 80°C for 72 h to constant Heavy, after grinding through a 200-mesh sieve, organic montmorillonite can be obtained;

[0024] (2) Preparation of polyphenylene sulfide-organic montmorillonite composites

[0025] ...

Embodiment 2

[0029] (1) Preparation of organic montmorillonite

[0030] Prepare 400 mL of montmorillonite suspension with a mass fraction of 5% in a 1000 mL three-neck flask, stir mechanically at 800 r / min for 2 h, let stand for 24 h, and take the upper suspension; weigh 2 times the amount of montmorillonite Pour the cetyltrimethylammonium bromide that removes the ion exchange capacity of the soil cation into 200 mL of 0.1mol / L hydrochloric acid solution, stir evenly, and pour it into the montmorillonite suspension with a separatory funnel; Heat the bath to 60°C and stir mechanically; then vacuum the reaction solution to the filter cake, and check the filtrate during the suction filtration process until no silver bromide precipitates; finally dry the filter cake in a vacuum oven at 80°C for 72 h to constant Heavy, after grinding through a 200-mesh sieve, organic montmorillonite can be obtained;

[0031] (2) Preparation of polyphenylene sulfide-organic montmorillonite composites

[0032] ...

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PUM

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Abstract

The invention relates to the technical fields of synthetic resin and plastic, and particularly relates to a preparation method of a polyphenyl thioether-organic montmorillonite composite material. The preparation method of the polyphenyl thioether-organic montmorillonite composite material comprises the following steps of (1), the preparation of organic montmorillonite; (2), the preparation of the polyphenyl thioether-organic montmorillonite composite material; (3), the heat treatment of the polyphenyl thioether-organic montmorillonite composite material. According to the polyphenyl thioether-organic montmorillonite composite material made by the preparation method, the chrominance change of polyphenyl thioether which is subjected to the heat treatment is ameliorated; the thermal oxidation resistance effect of the polyphenyl thioether is improved; the oxidation resistance effect of the composite material is better.

Description

technical field [0001] The invention relates to the technical field of synthetic resins and plastics, in particular to a preparation method of a polyphenylene sulfide-organic montmorillonite composite material. Background technique [0002] Polyphenylene sulfide is a semi-crystalline thermoplastic polymer with excellent comprehensive properties. It has good thermal stability, chemical stability, and corrosion resistance; and it is compatible with polyimide, polytetrafluoroethylene, aramid, etc. Compared with high-performance materials, polyphenylene sulfide also has the advantages of easier spinning processing, good spinnability, and lower price. Therefore, polyphenylene sulfide is widely used in high-temperature filtration and chemical corrosion resistance industries, and has become the preferred filter material for coal-fired power plants and boiler flue gas dust removal. [0003] Since the C—S bond energy on the polyphenylene sulfide macromolecule is low, it is easy to b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L81/02C08K9/04C08K3/34
CPCC08K9/04C08K3/346C08L2201/08
Inventor 王耀斌
Owner SHAANXI HI-TECH IND CO LTD
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