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Cold-resistant silane cross-linked polyethylene insulating composite material and preparation method thereof

A polyethylene insulation and silane crosslinking technology, applied in the field of composite materials, can solve the problems of insufficient weather resistance and mechanical properties, low compatibility of polyethylene, poor comprehensive performance, etc., to achieve improved mechanical strength, good corrosion resistance, good strength effect

Inactive Publication Date: 2015-10-21
合肥蓝科新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polyethylene has low compatibility, insufficient weather resistance and mechanical properties, and poor overall performance, which needs to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] Non-limiting examples of the present invention are as follows:

[0017] A cold-resistant silane cross-linked polyethylene insulating composite material, prepared from the following components in weight (kg):

[0018] Low density polyethylene resin 140, diatomaceous earth 10, calcite powder 10, citric acid 1.5, novolac resin 3, epoxy soybean oil 3, acetyl tributyl citrate 0.5, dioctyl adipate 1, polypropylene glycol 2.5 , Diphenylmethane diisocyanate 0.4, polyethylene wax 1.5, silane compounding agent 5;

[0019] The silane compounding agent is prepared from the following components in weight (kg): silane coupling agent A-1512, fluorocarbon surfactant FC-44300.3, dicumyl peroxide 0.08, dibutyl tin dilaurate 0.15, Antioxidant 10100.4; The preparation method is to mix silane coupling agent A-151, dicumyl peroxide, dibutyltin dilaurate and antioxidant 1010 and stir at 200r / min for 15min before adding fluorocarbon surfactant FC -443800r / min stirring for 3min, it is obtained.

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PUM

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Abstract

The invention discloses a cold-resistant silane cross-linked polyethylene insulating composite material. The cold-resistant silane cross-linked polyethylene insulating composite material is characterized by being prepared from, by weight, 120-150 parts of low-density polyethylene resin, 10-12 parts of diatomaceous earth, 10-12 parts of calcite powder, 1-2 parts of citric acid, 2-4 parts of linear phenolic resin, 2-4 parts of epoxidized soybean oil, 0.5-1 part of acetyl tributyl citrate, 0.5-1 part of dioctyl adipate, 2-3 parts of polypropylene glycol, 0.3-0.5 part of methylene diphenyl diisocyanate, 1-2 parts of polyethylene wax and 3-6 parts of silane complexing agents. The silane cross-linked polyethylene insulating composite material is good in strength and toughness, good in weather resistance, water resistance and corrosion resistance, excellent in low temperature resistance, suitable for being used under cold conditions and wide in application range.

Description

Technical field [0001] The invention relates to the field of composite materials, in particular to a cold-resistant silane cross-linked polyethylene insulating composite material and a preparation method thereof. Background technique [0002] Polyethylene is a resin with a wide range of uses due to its large output, abundant sources and low price. However, the compatibility of polyethylene is low, the weather resistance and mechanical properties are insufficient, the overall performance is poor, and the performance needs to be improved. Among them, cross-linking modification of polyethylene is one of the important means to improve the properties of polyethylene, which can improve the mechanical properties, chemical resistance and crack resistance of polyethylene products, and broaden the application range of polyethylene. [0003] Polyethylene cross-linking technology includes radiation cross-linking, peroxide cross-linking, silane cross-linking, etc. Among them, silane cross-link...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08K9/04C08K3/34C08J3/24C09C3/10C08G18/76C08G18/48
CPCC08K9/04C08G18/4825C08G18/7671C08J3/24C08J2323/06C08K3/34C08L2207/06C09C3/10C08L23/06
Inventor 吴春云
Owner 合肥蓝科新材料有限公司