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High-strength and high-wear-resistance carbon fiber reinforced polyphenylene sulfide composite material and preparation method thereof

A technology of polyphenylene sulfide and composite materials, which is applied in the field of composite materials, can solve the problems of failure to improve the wear resistance of materials, and achieve the effects of excellent mechanical properties, simple processing and operation, great social and economic benefits

Pending Publication Date: 2022-02-08
JINLING INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The components of each method cooperate with each other and act comprehensively, which can improve the toughness and heat resistance of the polyphenylene sulfide composite material, but fail to improve the wear resistance of the material

Method used

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  • High-strength and high-wear-resistance carbon fiber reinforced polyphenylene sulfide composite material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A high-strength, highly wear-resistant carbon fiber reinforced polyphenylene sulfide composite material, the preparation method comprising the following steps:

[0028] S1. Take 61 parts of polyphenylene sulfide (weight average molecular weight: 10,000), 30 parts of chopped carbon fiber, 8 parts of polytetrafluoroethylene, 1 part of pp-g-MAH, 0.1 part of polyester silicone resin, methyl 2 parts of silicone oil and 0.1 part of KR-41B were blended evenly in a high-speed blender, and then dried in a blast drying oven at 60°C for 24 hours for later use;

[0029] S2. Put the blend prepared in S1 into the SHJ-20 twin-screw extruder for extrusion operation. The temperatures in the five zones of the extruder are 285°C, 290°C, 290°C, 290°C, and 290°C. The temperature was 285°C and the screw speed was 170 rpm. The extruded strips are water-cooled and dried, sent to a pelletizer and adjusted to 320r / min for pelletizing, and the pellets are made into high-strength, high-wear-resis...

Embodiment 2

[0031] A high-strength, highly wear-resistant carbon fiber reinforced polyphenylene sulfide composite material, the preparation method comprising the following steps:

[0032] S1. Take 62 parts of polyphenylene sulfide (weight average molecular weight: 15000), 28 parts of chopped carbon fiber, 9 parts of polytetrafluoroethylene, 1.5 parts of carbon black, 0.2 parts of polyester silicone resin, 2 parts of paraffin, silane 0.1 part of coupling agent A-172 was blended evenly in a high-speed blender, and then placed in a blast drying oven at 60°C for 24 hours for later use;

[0033] S2. Put the blend prepared in S1 into the SHJ-20 twin-screw extruder for extrusion operation. The temperatures in the five zones of the extruder are 285°C, 290°C, 290°C, 290°C, and 290°C. The temperature was 285°C and the screw speed was 170 rpm. The extruded strips are water-cooled and dried, sent to a pelletizer and adjusted to 320r / min for pelletizing, and the pellets are made into high-strength, h...

Embodiment 3

[0035] A high-strength, highly wear-resistant carbon fiber reinforced polyphenylene sulfide composite material, the preparation method comprising the following steps:

[0036] S1. According to the ratio, take 64 parts of polyphenylene sulfide (weight average molecular weight is 13000), 26 parts of chopped carbon fiber, 9 parts of polytetrafluoroethylene, 1.5 parts of carbon black, 0.2 parts of polyester silicone resin, 2 parts of paraffin, silane 0.6 part of coupling agent A-172 was blended evenly in a high-speed blender, and then placed in a blast drying oven at 60°C for 24 hours for later use;

[0037] S2. Put the blend prepared in S1 into the SHJ-20 twin-screw extruder for extrusion operation. The temperatures in the five zones of the extruder are 285°C, 290°C, 290°C, 290°C, and 290°C. The temperature was 285°C and the screw speed was 170 rpm. The extruded strips are water-cooled and dried, sent to a pelletizer and adjusted to 320r / min for pelletizing, and the pellets are ...

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Abstract

The invention provides a high-strength and high-wear-resistance carbon fiber reinforced polyphenylene sulfide composite material which comprises the following components in parts by weight: 61-70 parts of polyphenylene sulfide, 21-30 parts of carbon fibers, 8-18 parts of polytetrafluoroethylene, 1-2 parts of a compatilizer, 0.1-0.4 part of a surface treating agent, 1-2 parts of a lubricant and 0.1-2 parts of a coupling agent, the weight-average molecular weight of the polyphenylene sulfide is 10000-15000, the carbon fibers are short carbon fibers, and the fiber length is 40-70 mm; the invention also provides a preparation method of the carbon fiber reinforced polyphenylene sulfide composite material. The tensile strength of the prepared carbon fiber reinforced polyphenylene sulfide composite material is larger than or equal to 95, the abrasion is smaller than 5, the friction coefficient is smaller than 0.2, and the requirements of an air conditioner sliding block for the mechanical strength and friction performance of the polyphenylene sulfide composite material can be met. The method is simple in processing operation, low in raw material cost, environment-friendly and pollution-free, has great social benefits and economic benefits, and is suitable for popularization.

Description

Technical field: [0001] The invention belongs to the technical field of composite materials, and in particular relates to a high-strength, high-wear-resistant carbon fiber reinforced polyphenylene sulfide composite material and a preparation method thereof. Background technique: [0002] The Chinese name of PPS plastic raw material is polyphenylene sulfide, and the English name is Phenylenesulfide. It is a thermoplastic special engineering plastic with excellent comprehensive properties. It has the advantages of hard and brittle, high crystallinity, flame retardant, good thermal stability, high mechanical strength, excellent electrical properties, etc., and strong chemical corrosion resistance. PPS is one of the varieties with the best heat resistance in engineering plastics. The thermal deformation temperature of glass fiber modified materials is generally greater than 260 degrees, and its chemical resistance is second only to polytetrafluoroethylene. In addition, it also ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L81/02C08L27/18C08L51/06C08L83/10C08L83/04C08L91/06C08K7/06C08K3/04C08J5/04
CPCC08J5/042C08J2381/02C08J2427/18C08J2451/06C08J2483/10C08J2483/04C08J2491/06C08K7/06C08K3/04
Inventor 杨晓莉王楠宋代豪包正民蔡琪任洋王博宇
Owner JINLING INST OF TECH
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