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Silane crosslinked polyethylene cable insulation material

A silane crosslinking and cable insulation technology, applied in insulators, organic insulators, plastic/resin/wax insulators, etc., to achieve the effects of short crosslinking time, good mechanical properties and thermal aging resistance

Active Publication Date: 2019-09-17
浙江太湖远大新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the catalysts used in silane crosslinked polyethylene are organotin compounds such as dibutyltin dilaurate, which have strong toxicity.

Method used

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  • Silane crosslinked polyethylene cable insulation material
  • Silane crosslinked polyethylene cable insulation material
  • Silane crosslinked polyethylene cable insulation material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A silane cross-linked polyethylene cable insulation material is prepared by the following process:

[0029] (1) Put 60 parts of LLDPE7042 and 40 parts of LDPE (LD165) into the mixer by weight and stir at low speed for 1 minute and then at high speed for 3 minutes to obtain polyethylene raw materials;

[0030] (2) 30 parts of PVA1788 and 70 parts of PVA1799 were put into the mixer by weight and stirred at low speed for 1 minute and then stirred at high speed for 3 minutes to obtain polyvinyl alcohol raw material;

[0031] (3) 5 parts of polyethylene raw materials, 0.05 part of zirconium disulfide and 0.05 part of antioxidant 1024 are put into the blender by weight and stirred at low speed for 1 minute and then stirred at high speed for 3 minutes, then poured into the extruder hopper, extruded The exit temperature is 150°C. After being extruded by twin-screw, it is cooled in a cooling water tank, dried by a fan, and then pelletized, and then dried in a drying tower at 80°...

Embodiment 2

[0039] A silane cross-linked polyethylene cable insulation material is prepared by the following process:

[0040] (1) Put 80 parts of LLDPE7042 and 20 parts of LDPE (LD165) into a mixer by weight and stir at low speed for 1 minute and then at high speed for 3 minutes to obtain polyethylene raw materials;

[0041] (2) 70 parts of PVA1788 and 30 parts of PVA1799 were put into the blender by weight and stirred at low speed for 1 minute and then stirred at high speed for 3 minutes to obtain polyvinyl alcohol raw material;

[0042] (3) 10 parts of said polyethylene raw materials, 0.5 part of zirconium disulfide and 0.2 part of antioxidant 1024 are put into the blender in parts by weight and stirred at low speed for 1 minute and then stirred at high speed for 3 minutes, then poured into the extruder hopper, extruded The exit temperature is 150°C. After being extruded by twin-screw, it is cooled in a cooling water tank, dried by a fan, and then pelletized, and then dried in a drying...

Embodiment 3

[0050] A silane cross-linked polyethylene cable insulation material is prepared by the following process:

[0051] (1) Put 70 parts of LLDPE7042 and 30 parts of LDPE (LD165) into a mixer by weight and stir at low speed for 1 minute and then at high speed for 3 minutes to obtain polyethylene raw materials;

[0052] (2) Put 50 parts of PVA1788 and 50 parts of PVA1799 into a mixer by weight and stir at a low speed for 1 minute and then stir at a high speed for 3 minutes to obtain a polyvinyl alcohol raw material;

[0053] (3) 8 parts of polyethylene raw materials, 0.25 parts of zirconium disulfide and 0.1 part of antioxidant 1024 are put into the blender by weight and stirred at low speed for 1 minute and then stirred at high speed for 3 minutes, then poured into the extruder hopper, extruded The exit temperature is 150°C. After being extruded by twin-screw, it is cooled in a cooling water tank, dried by a fan, and then pelletized, and then dried in a drying tower at 80°C for 2 h...

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PUM

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Abstract

The invention discloses a silane crosslinked polyethylene cable insulation material, which is prepared from the following components in parts by weight: 85-95 parts of polyethylene, 5-15 parts of polyvinyl alcohol, 1.2-1.8 parts of a silane coupling agent, 0.05-0.1 part of dicumyl peroxide (DCP), 0.1-0.5 part of an antioxidant, 0.5-2 parts of starch, 0.05-0.5 part of zirconium disulfide and 0.5-3 parts of zirconium dioxide. The silane crosslinked polyethylene cable insulation material is prepared without using a catalyst with stronger toxicity, is shorter in crosslinking time, and has better thermal aging resistance.

Description

technical field [0001] The invention relates to the field of insulating materials, and specifically designs a polyethylene cable insulating material. Background technique [0002] Cross-linked polyethylene material has excellent electrical and mechanical properties, which makes it widely used in cable insulation materials. XLPE insulating materials mainly have three methods: chemical crosslinking, radiation crosslinking and silane crosslinking. Among them, the process of silane crosslinking polyethylene is relatively simple and the cost is low. At present, the catalysts used in silane crosslinked polyethylene are organotin compounds such as dibutyltin dilaurate, which have strong toxicity. [0003] Therefore, there is a need for a silane cross-linked polyethylene cable insulation material without strong toxic components. Contents of the invention [0004] The purpose of the present invention is to provide a silane cross-linked polyethylene cable insulation material witho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/06C08L29/04C08L3/02C08K13/02C08K5/14C08K3/22C08K3/30C08K5/5435H01B3/44
CPCC08L23/0815H01B3/441C08L2203/202C08L2312/08C08L2205/035C08L2205/025C08L2207/066C08K2003/2244C08K2003/3009C08L23/06C08L29/04C08L3/02C08K13/02C08K5/14C08K3/22C08K3/30C08K5/5435
Inventor 赵勇李顺利俞丽琴蔡煜明陈维清
Owner 浙江太湖远大新材料股份有限公司
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