Method for manufacturing high toughness polyphenyl thioether composite pellets

Abstract

The invention discloses a manufacturing method of high-tenacity polyphenyl thioether composite granules. The polyphenyl thioether resin premix added with an addition agent is fully evenly mixed in a homo-mixer, and then the granule product is manufactured by subsequent extrusion and mixing processing. The granule comprises a proportion of polyphenyl thioether resin treated with oxidized thermal crosslinking, and is added with 5-35% of toughening modifier, 0.1-1 percent of anticorrosion inhibitor and 0.1-5 percent of thermal forming stabilizer fatty alcohol polyoxy styrene ether phosphoester amine salt; the premix obtained by fully evenly mixing all the materials in the homo-mixer and the fiber glass with the weight of 30-35 percent of that of the premix are mixed together and extruded for forming and chopping by an equidirectional double screw extruder. Finally, the high-tenacity polyphenyl thioether composite granules which have resistance to shock, stable thermotropy and excellent tensile strength are obtained.

Description

Technical field [0001] The invention belongs to the application field of polymer materials Background technique [0002] High-performance polyphenylene sulfide (PPS) has excellent chemical resistance and thermal stability at high temperatures, and has high flame retardancy, high electrical insulation, radiation resistance and good mechanical properties. [0003] Polyphenylene sulfide (PPS) has good chemical resistance and stability. It can still maintain its original performance under extremely harsh conditions, and has outstanding chemical stability, second only to polytetrafluoroethylene. At high temperature, parts made of polyphenylene sulfide resin can maintain the original tensile strength after being placed in different inorganic reagents for a week. It also has good resistance to organic solvents. Except that toluene at 93°C has a slight influence on its strength, in organic solvents such as carbon tetrachloride and chloroform, its strength will not change even after...

AI Technical Summary

Problems solved by technology

[0005] In Chinese Patent No. CN: 1620480A, a polyphenylene sulfide prepared by adding a block copolymer of a conjugated diene compound and an aromatic vinyl compound in the case of a certain amount of oligomers is introduced. Molded products of ether (PPS) resin composites have good toughness and weld strength, but the toughness of this kind of polyphenylene sulfide (PPS) resin composites is not good enough

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