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A kind of high toughness flame-retardant pps/pctg composite material and its preparation method and application

A composite material and high toughness technology, which is applied in the field of high toughness flame retardant PPS/PCTG composite material and its preparation, can solve problems such as poor toughness, and achieve the effects of toughness improvement, rigidity and toughness balance, and high strength

Active Publication Date: 2022-04-01
ZHEJIANG XINLI NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The material has high fluidity, good processing and forming performance, and good heat resistance, but the material has poor toughness

Method used

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  • A kind of high toughness flame-retardant pps/pctg composite material and its preparation method and application
  • A kind of high toughness flame-retardant pps/pctg composite material and its preparation method and application
  • A kind of high toughness flame-retardant pps/pctg composite material and its preparation method and application

Examples

Experimental program
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preparation example Construction

[0034] The preparation method of high-toughness flame-retardant PPS / PCTG composite material comprises the following steps:

[0035] PPS, PCTG, toughener (ethylene-methyl acrylate-glycidyl methacrylate, thermoplastic polyester elastomer), flame retardant (Clariant Exolit OP 1240, melamine polyphosphate) and lubricant (polyethylene Wax) is fed into the main feeding port of the twin-screw extruder, and under the twin-screw conveying and shearing action of the twin-screw extruder, after the material is fully melted and plasticized, it is drawn, cooled, and pelletized to obtain high toughness resistance. Burn PPS / PCTG composite material. The melting and plasticizing temperature in the twin-screw extruder is 260°C-285°C, and the screw rotation speed is 500rpm / min.

Embodiment 1～3 and comparative example 1～4

[0037] See Table 1 for details of the material proportions of Examples 1-3 and Comparative Examples 1-4.

[0038] Table 1

[0039] raw material Example 1 Example 2 Example 3 Comparative example 1 Comparative example 2 Comparative example 3 Comparative example 4 PPS 68 65 60 85 73 68 58 PCTG 15 15 20 0 15 15 20 3078 2 3 3 0 0 5 2 AX8900 3 5 5 3 0 0 8 1240 8 8 8 8 8 8 8 MPP 3 3 3 3 3 3 3 polyethylene wax 1 1 1 1 1 1 1

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Abstract

The invention discloses a high-toughness flame-retardant PPS / PCTG composite material and its preparation method and application. It consists of the following materials in parts by weight: 45-80 parts of PPS; 10-35 parts of PCTG; 5-15 parts of flame retardant; 5-15 parts of toughening agent; 0.5-3 parts of lubricant. The toughening agent is a compound of ethylene-methyl acrylate-glycidyl methacrylate and polyester elastomer. The above components are extruded and granulated by twin-screws to obtain a high-toughness flame-retardant PPS / PCTG composite material. The high-toughness flame-retardant PPS / PCTG composite material prepared by the invention has the advantages of high flame-retardant efficiency, good toughness, high strength, etc., and is especially suitable for preparing products such as stoppers of circuit breakers.

Description

technical field [0001] The invention relates to the field of flame-retardant PPS composite materials, in particular to a high-toughness flame-retardant PPS / PCTG composite material and its preparation method and application. Background technique [0002] As an important accessory material for circuit breaker products, stoppers are required to have good strength and resilience. The commonly used materials are polyoxymethylene (POM) and modified polyphenylene oxide (PPO). Among them, POM has good strength and toughness, but POM Flammable, poor flame retardancy. PPO has good strength and flame retardancy, but PPO is prone to brittle fracture due to its rigid structure. Therefore, it is necessary to find a material that not only has good strength, but also maintains high toughness, and has a certain flame retardancy. [0003] Polyphenylene sulfide (PPS, Polyphenylenesulfide) is a class of crystalline polymers containing benzene rings and sulfur in its molecular chain. It has go...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L81/02C08L67/02C08L23/08C08L67/00C08K5/3492
CPCC08L81/02C08L2201/02C08L2205/035C08L67/02C08L23/0884C08L67/00C08K5/34928
Inventor 倪金平聂帅陈培陈良光叶耀挺
Owner ZHEJIANG XINLI NEW MATERIAL CO LTD
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