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Extrusion-grade PPS composite material and preparation method thereof

A composite material and extrusion granulation technology, which is applied in the field of extrusion grade PPS pipe composite material and its preparation, and can solve the problems of extrusion die residue and crystallinity reduction.

Active Publication Date: 2022-05-13
上海聚威新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention uses linear PPS as the matrix resin, and reduces its crystallinity by extrusion blending with silicon copolymerized PC, and then optimizes the combination of toughening and modification through a variety of functional toughening agents, and adopts a suitable lubricant system and Optimize the screw combination to solve the problem of pits on the inner and outer walls of the pipe during the extrusion process, as well as the problem of dirt residue on the extrusion die, so that the final prepared PPS composite material has good ductility, chemical solvent resistance and extrusion Bending performance

Method used

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  • Extrusion-grade PPS composite material and preparation method thereof
  • Extrusion-grade PPS composite material and preparation method thereof
  • Extrusion-grade PPS composite material and preparation method thereof

Examples

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preparation example Construction

[0057] The specific embodiment part of the present invention provides the preparation method of aforementioned PPS composite material, it is characterized in that, described method comprises the following steps:

[0058] The PPS / PC alloy particles, lubricant, primary toughening agent and carbon black obtained by extruding the formula amount of PPS and silicone copolymerized PC are fed from the main feeding port of the twin-screw extruder, and the auxiliary toughening agent is fed from the twin-screw extruder. The side feeding port of the screw extruder discharges the material for extrusion and granulation.

[0059] As a preferred solution of the present invention, the preparation method of the PPS / PC alloy particles obtained by extrusion of the PPS and organosilicon copolymerized PC comprises:

[0060] Mix PPS and silicone copolymerized PC at a mass ratio of 5:1, extrude and granulate from a twin-screw extruder, and then dry them.

[0061] As a preferred solution of the prese...

Embodiment 1

[0084] This example provides an extrusion-grade PPS composite material and its preparation method. The composite material includes the following components by weight: PPS GAF02: 55 parts; silicone copolymerized PC AG1950: 11 parts; POE-g-GMA : 24 parts; SEBS-g-MAH: 8 parts; PPA9000H: 0.5 parts; Silicone: 0.5 parts, carbon black Bleumina 312#: 1 part.

[0085] The preparation method is as follows:

[0086] (1) Add PPS and organosilicon copolymerized PC into a high-speed mixer according to the ratio of 5:1, mix for 2 minutes, and extrude and granulate to obtain alloy particles;

[0087] (2) Add 66 parts of alloy particles and the remaining materials in the above ratio except SEBS-g-MAH into a high-speed mixer and mix for 2 minutes. After the main feeding of the optimized twin-screw extruder, the SEBS-g-MAH The material is fed from the side and extruded to obtain modified particles; the temperature settings of each section of the twin-screw extruder temperature are: 270°C, 280°C...

Embodiment 2

[0091] This example provides an extrusion-grade PPS composite material and its preparation method. The composite material includes the following components by weight: PPS GAF02: 55 parts; silicone copolymerized PC AG1950: 11 parts; E-GMA-VA : 24 parts; SEBS-g-MAH: 8 parts; PPA9000H: 0.5 parts; Silicone: 0.5 parts, carbon black Bleumina 312#: 1 part.

[0092] The preparation method is as follows:

[0093] (1) Add PPS and organosilicon copolymerized PC into a high-speed mixer according to the ratio of 5:1, mix for 2 minutes, and extrude and granulate to obtain alloy particles;

[0094] (2) Add 66 parts of alloy particles and the remaining materials in the above ratio except SEBS-g-MAH into the high-speed mixer and mix for 2min, and the main feeding and blanking of the optimized twin-screw extruder (the structure is the same as in Example 1 The same), SEBS-g-MAH is fed from the side, and extruded to obtain modified particles; wherein, the temperature settings of each section of ...

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Abstract

The invention provides an extrusion-grade PPS (polyphenylene sulfide) composite material and a preparation method thereof. The composite material comprises the following components in parts by weight: 50-60 parts of PPS; 10 to 12 parts of organic silicon copolymerized PC (Polycarbonate); 25 to 35 parts of a toughening agent; 0.5 to 2 parts of a lubricant; and 0.5 to 1.5 parts of carbon black. Linear PPS is used as first matrix resin, organosilicon copolymerized PC is used as second matrix resin, a plurality of functional flexibilizers are optimally combined for toughening modification, and meanwhile, a proper lubricant system and an optimized screw combination are adopted, so that the problems of pits in the inner wall and the outer wall of a pipe in the extrusion processing process and dirt residues on an extrusion die head are solved, and the service life of the pipe is prolonged. The finally prepared PPS composite material has good ductility, chemical solvent resistance and extrusion bending shaping performance.

Description

technical field [0001] The invention belongs to the field of polymer material modification, and relates to an extrusion-grade PPS pipe composite material with high elongation, high impact, and easy bending and shaping and a preparation method thereof. Background technique [0002] Polyphenylene sulfide (PPS for short) is a special engineering plastic containing phenylthio groups in the main molecular chain. The molecular chain is composed of benzene rings and sulfur atoms alternately arranged. The molecular chain structure has a high degree of regularity, resulting in a relatively high degree of crystallinity. , high melting point; secondly, due to the conjugation between the benzene ring and the sulfur atom; and the sulfur atom is in an unsaturated state, after oxidation, the thioether bond can be changed into a sulfoxide group, or the adjacent macromolecule can form an oxygen bridge branch or Cross-linking makes the heat and oxygen stability very prominent; third, because ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L81/02C08L69/00C08L51/06C08L51/00C08L23/08B29C48/40B29C48/59B29C48/625
CPCC08L81/02B29C48/40B29C48/59B29C48/625C08L2203/18C08L69/00C08L51/06C08L51/006C08L23/0884
Inventor 王晶张天荣牛志海王凯王明义
Owner 上海聚威新材料股份有限公司