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Polyphenylene sulfide composite material with high impact and high CTI and preparation method and application thereof

A technology of polyphenylene sulfide and composite materials, applied in the field of modified plastics, which can solve the problems of low impact strength, high cost, and high cost of PPS composite materials, so as to facilitate market promotion, facilitate industrial production, and improve impact strength Effect

Inactive Publication Date: 2017-01-04
GUANGZHOU SUPER DRAGON ENG PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the addition of high-temperature nylon and compatibilizer can improve the impact strength of glass fiber reinforced PPS, due to the single supply channel and high cost of high-temperature nylon, it is not conducive to large-scale production and promotion
Chinese patent CN 104277459 A similarly discloses a polyphenylene sulfide / semi-aromatic nylon composite material and its preparation method, but also has the disadvantages of high cost and unfavorable popularization
Through the combination of chopped glass fiber and ultrafine filler minerals, the CTI of the PPS composite material can reach more than 225V, but due to the addition of a large amount of minerals and the lack of an effective toughening system, the impact strength of the PPS composite material is not high.

Method used

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  • Polyphenylene sulfide composite material with high impact and high CTI and preparation method and application thereof
  • Polyphenylene sulfide composite material with high impact and high CTI and preparation method and application thereof
  • Polyphenylene sulfide composite material with high impact and high CTI and preparation method and application thereof

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Experimental program
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Effect test

Embodiment 1

[0042] A kind of preparation method of high impact resistance high CTIPPS composite material, comprises the following steps:

[0043] (1) take raw materials by the amount of PPS, PA66, toughening agent, coupling agent, antioxidant and lubricant in table 1;

[0044] (2) Mix PPS and coupling agent at 120°C for 10 minutes, cool to 60°C, add PA66, toughening agent, antioxidant and lubricant and mix for 5 minutes, then add to the main feeding hopper of the extruder, and feed on the side The glass fiber is added into the hopper, extruded and granulated by a twin-screw extruder.

[0045] The rotational speed of the twin-screw extruder is 400r / min, and the temperature is 260-300°C. The properties of the obtained high impact and high CTIPPS composites are shown in Table 2.

Embodiment 2

[0047] A kind of preparation method of high impact resistance high CTIPPS composite material, comprises the following steps:

[0048] (1) take raw materials by the amount of PPS, PA66, toughening agent, coupling agent, antioxidant and lubricant in table 1;

[0049] (2) Mix PPS and coupling agent at 130°C for 9 minutes, cool to 70°C, add PA66, toughener, antioxidant and lubricant and mix for 4 minutes, then add to the main feeding hopper of the extruder, and feed on the side The glass fiber is added into the hopper, extruded and granulated by a twin-screw extruder.

[0050] The rotational speed of the twin-screw extruder is 300r / min, and the temperature is 260-300°C. The properties of the obtained high impact and high CTIPPS composites are shown in Table 2.

Embodiment 3

[0052] A kind of preparation method of high impact resistance high CTIPPS composite material, comprises the following steps:

[0053] (1) take raw materials by the amount of PPS, PA66, toughening agent, coupling agent, antioxidant and lubricant in table 1;

[0054] 2) Mix PPS and coupling agent at 140°C for 8 minutes, cool to 80°C, add PA66, toughener, antioxidant and lubricant and mix for 3 minutes, then add to the main feeding hopper of the extruder, and put it in the side feeding hopper Add glass fiber, extrude and granulate through twin-screw extruder.

[0055] The rotational speed of the twin-screw extruder is 500r / min, and the temperature is 260-300°C. The properties of the obtained high impact and high CTIPPS composites are shown in Table 2.

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Abstract

The invention belongs to the field of modified plastics, particularly discloses a polyphenylene sulfide composite material with high impact and high CTI, a preparation method and application thereof. the composite material is prepared from polyphenylene sulfide, nylon 66, toughening agent, glass fiber, antioxidant, lubricating agent and coupling reagent. Aiming at the defect that PPS resin is prone to tracking failure, PA66 resin with high CTI is added, and the addition of PA66 not only improves the CTI of the PPS composite material, but also improves the impact strength of the PPS composite material, and the PPS composite material with high impact and high CTI is obtained through further toughening effect of PA66 high-efficiency toughening agent. According to the preparation method, the operation is simple, the obtained PPS composite material with high impact and high CTI is low in cost, and has a very good prospect for popularizing in the market. The composite material has excellent impact resistance and excellent tracking failure resistance, and can be used in electrical and electronic and other related fields where the above performance requirements are higher.

Description

technical field [0001] The invention belongs to the field of modified plastics, and in particular relates to a high-impact and high-CTI polyphenylene sulfide composite material and a preparation method and application thereof. Background technique [0002] As the largest special engineering plastic, polyphenylene sulfide (PPS) has excellent comprehensive properties, specifically manifested in outstanding thermal stability, flame retardancy, excellent chemical resistance, creep resistance, electrical insulation and processing Formability. Due to its excellent performance, PPS has a wide range of applications in the field of electronics and electricity, but some of its shortcomings affect its further application. [0003] The main chain of PPS molecules is alternately arranged with benzene rings and sulfur atoms, and the chain regularity is very strong, so it is easy to crystallize, which brings high heat resistance and high rigidity to it, but also makes it have the disadvan...

Claims

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Application Information

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IPC IPC(8): C08L81/02C08L77/06C08L51/06C08L83/04C08K13/04C08K7/14
CPCC08L81/02C08K2201/003C08K2201/004C08L77/06C08L2205/035C08L51/06C08L83/04C08K13/04C08K7/14
Inventor 郝建鑫黄泽彬曾德明郝源增陈瑜任萍谯盛元
Owner GUANGZHOU SUPER DRAGON ENG PLASTICS
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