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Polyphenylene sulfide production method

A polyphenylene sulfide and production formula technology, which is applied in the field of polyphenylene sulfide production, can solve the problems of low purity of polyphenylene sulfide, achieve the effects of easy realization, simple operation steps, and environmental protection

Inactive Publication Date: 2014-09-17
SUZHOU NEW DISTRICT HUASHIDA ENG PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the purity of polyphenylene sulfide produced by the researched method is not high

Method used

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Embodiment Construction

[0011] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0012] Embodiments of the present invention provide the following technical solutions.

[0013] In one embodiment, a method for producing polyphenylene sulfide includes the following raw materials: aqueous sodium sulfide, p-dichlorobenzene, phase solvent, solvent, and auxiliary agent. The compatibilizer is 2-dimethylbenzoyl isocyanate, the auxiliary agent is chlorinated polyethylene, and the solvent is N-methylpyrrolidone.

[0014] The purity of 2-dimethylbenzoyl isocyanate is 80-90%, the purity of chlorinated polye...

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Abstract

The invention discloses a polyphenylene sulfide production method, which comprises the following active ingredients: water-containing sodium sulfide, p-dichlorobenzene, phase solvent, solvent, and auxiliaries, wherein the phase solvent adopts 2-dimethyl benzoyl isocyanate, and the auxiliaries adopt chlorinated polyethylene. The polyphenylene sulfide production method concretely comprises the following steps: firstly, drying and dewatering the water-containing sodium sulfide, phase solvent, solvent, and auxiliaries, wherein the dewatering time lasts 30-50min, and the temperature is at 150-175DEG C; adding the p-dichlorobenzene after drying and dewatering, filtering after filtering, adding washing liquor while filtering, and filtering and rying to obtain polyphenylene sulfide. Through the mode, the invention can provide a polyphenylene sulfide production method, which is simple in operation steps, and easy to realize, the purity of polyphenylene sulfide can be controlled to the greatest extent during reaction, more refuses cannot be generated during reaction, and thus the environment can be effectively protected.

Description

technical field [0001] The invention relates to a production method of engineering plastics, in particular to a production method of polyphenylene sulfide. Background technique [0002] Polyphenylene Sulfide (PPS) is a special engineering plastic with excellent performance. The demand for PPS in the global market is increasing rapidly, and the domestic market is almost entirely dependent on imports. At present, my country's PPS is in the stage of industrialization. In the synthesis research of PPS, a variety of synthesis methods have been formed. However, the purity of polyphenylene sulfide produced by the method studied is not high. Contents of the invention [0003] The technical problem mainly solved by the present invention is to provide a production method of polyphenylene sulfide, which has simple operation steps and is easy to realize, and can control the purity of polyphenylene sulfide to the greatest extent during the reaction, and the reaction will not generate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G75/02C08G75/0213C08G75/0254
Inventor 徐春华
Owner SUZHOU NEW DISTRICT HUASHIDA ENG PLASTICS
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