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High-CTI polyphenylene sulfide composite material and preparation method thereof

A polyphenylene sulfide and composite material technology, applied in the field of polymer materials, can solve problems such as insufficient CTI of polyphenylene sulfide composite materials, and achieve the effect of improving safety performance

Active Publication Date: 2021-05-14
上海日之升科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of insufficient CTI of polyphenylene sulfide composite material existing in the prior art, to provide a kind of high CTI polyphenylene sulfide composite material and its preparation method

Method used

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  • High-CTI polyphenylene sulfide composite material and preparation method thereof
  • High-CTI polyphenylene sulfide composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A kind of preparation method of high CTI polyphenylene sulfide composite material, concrete steps are as follows:

[0037] (1) Preparation of raw materials;

[0038] The parts by weight of each component are as follows:

[0039] 20 parts of polyphenylene sulfide;

[0040] 20 parts of glass fiber;

[0041] 24 parts of metal oxide;

[0042] 1 part of carbonization inhibitor;

[0043] 0.2 parts of surface migration agent;

[0044] The melt flow rate of polyphenylene sulfide at 316°C*5kg is 300g / 10min;

[0045] The glass fiber is a flat glass fiber with a silane-treated flat ratio of 2:1;

[0046] The metal oxide is zinc oxide with a particle size of 15-40 μm;

[0047] The carbonization inhibitor is triphenyl phosphate;

[0048] The surface migration agent is silicone;

[0049] (2) mixing polyphenylene sulfide, metal oxide, carbonization inhibitor and surface migration agent in a mixer and then discharging to obtain a mixture;

[0050] (3) The mixture is placed in...

Embodiment 2

[0053] A kind of preparation method of high CTI polyphenylene sulfide composite material, concrete steps are as follows:

[0054] (1) Preparation of raw materials;

[0055] The parts by weight of each component are as follows:

[0056] 25 parts of polyphenylene sulfide;

[0057] 23 parts of glass fiber;

[0058] 20 parts of metal oxide;

[0059] 3 parts of carbonization inhibitor;

[0060] 0.3 parts of surface migration agent;

[0061] The melt flow rate of polyphenylene sulfide at 316°C*5kg is 400g / 10min;

[0062] The glass fiber is a flat glass fiber with a silane-treated flat ratio of 3:1;

[0063] The metal oxide is zinc oxide with a particle size of 15-40 μm;

[0064] The carbonization inhibitor is triphenyl phosphate;

[0065] The surface migration agent is silicone;

[0066] (2) mixing polyphenylene sulfide, metal oxide, carbonization inhibitor and surface migration agent in a mixer and then discharging to obtain a mixture;

[0067] (3) The mixture is placed i...

Embodiment 3

[0070] A kind of preparation method of high CTI polyphenylene sulfide composite material, concrete steps are as follows:

[0071] (1) Preparation of raw materials;

[0072] The parts by weight of each component are as follows:

[0073] 30 parts of polyphenylene sulfide;

[0074] 30 parts of glass fiber;

[0075] 29 parts of metal oxide;

[0076] 4 parts of carbonization inhibitor;

[0077] 0.5 parts of surface migration agent;

[0078] The melt flow rate of polyphenylene sulfide at 316°C*5kg is 600g / 10min;

[0079] The glass fiber is a flat glass fiber with a silane-treated flat ratio of 4:1;

[0080] The metal oxide is alumina with a particle size of 15-40 μm;

[0081] The carbonization inhibitor is triphenyl phosphate;

[0082] The surface migration agent is silicone;

[0083] (2) mixing polyphenylene sulfide, metal oxide, carbonization inhibitor and surface migration agent in a mixer and then discharging to obtain a mixture;

[0084] (3) The mixture is placed in a...

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Abstract

The invention relates to a high CTI polyphenylene sulfide composite material and a preparation method thereof, the high CTI polyphenylene sulfide composite material comprises the following components in parts by weight: 20-50 parts of polyphenylene sulfide, 20-40 parts of glass fiber, 20-40 parts of metal oxide, 1-10 parts of carbonization inhibitor and 0.2-1 part of surface migration agent; the preparation method comprises the following steps: uniformly mixing polyphenylene sulfide, a metal oxide, a carbonization inhibitor and a surface migration agent in a mixer, and discharging to obtain a mixture; and placing the mixture in a twin-screw extruder, adding glass fibers from a side feeding port of the twin-screw extruder, and carrying out extrusion granulation to obtain the high-CTI polyphenylene sulfide composite material. The CTI of the prepared high-CTI polyphenylene sulfide composite material is 175-300 V, the safety performance of the material is greatly improved, and the high-CTI polyphenylene sulfide composite material has balanced mechanical performance and particularly high rigidity and is particularly suitable for structural components which have high-temperature-resistant requirements and are in electric contact.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a high-CTI polyphenylene sulfide composite material and a preparation method thereof. Background technique [0002] Under certain conditions, the surface of polymer insulating materials will suffer from electrical tracking degradation. Electrical tracking damage means that when there is moisture and pollution on the surface of the material and the electric field is large enough, leakage current will be generated on the surface. Under the action of Joule heat of the current, The water is evaporated, and with the gap formed by the separation of the liquid film on the surface of the material, the instantaneous field strength between the liquid films reaches the discharge field strength, resulting in discharge, and the heat generated by the discharge causes the surface of the material to be partially carbonized. Due to the high conductivity of the carbonized product, The elec...

Claims

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Application Information

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IPC IPC(8): C08L81/02C08L83/04C08K7/14C08K9/06C08K3/22C08K5/523C08K13/06
CPCC08L81/02C08L2201/02C08L2201/08C08K2003/2296C08K2003/2227C08K2003/2272C08L83/04C08K7/14C08K9/06C08K3/22C08K5/523C08K13/06
Inventor 张强梁伟成陈东孟成铭阮静
Owner 上海日之升科技有限公司
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