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A degradable electrical insulating material

An electric insulating material, polylactic acid technology, applied in the field of insulating materials, to achieve the effect of improving poor insulation

Active Publication Date: 2016-10-12
吴江市黄浦冷热缩制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved is: in order to reduce the environmental and soil pollution caused by traditional electrical insulation materials such as polyvinyl chloride or cross-linked polyethylene due to their refractory degradation, and to improve the insulation performance of degradable polylactic acid at high temperatures, provide a A degradable electrical insulating material

Method used

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  • A degradable electrical insulating material

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Embodiment 1

[0013] A degradable electrical insulating material, including 50 parts of polylactic acid, 5 parts of natural rubber, 3 parts of polyethylene glycol, 1 part of polyhydroxybutyl ester, 30 parts of polyethylene, 2 parts of photosensitizer, 18 parts of straw filler, mica 15 parts of granules, 5 parts of starch and 1 part of additive. Among them, polylactic acid is L-type polylactic acid, and the form of polylactic acid is granular. Additives include stabilizers and flame retardants.

Embodiment 2

[0015] A degradable electrical insulating material, including 65 parts of polylactic acid, 20 parts of natural rubber, 16 parts of polyethylene glycol, 5 parts of polyhydroxybutyl ester, 45 parts of polyethylene, 8 parts of photosensitizer, 30 parts of straw filler, mica 25 parts of granules, 22 parts of starch and 7 parts of additives. Among them, polylactic acid is L-type polylactic acid, and the form of polylactic acid is fibrous. Additives include stabilizers and flame retardants.

Embodiment 3

[0017] A degradable electrical insulating material, including 58 parts of polylactic acid, 13 parts of natural rubber, 10 parts of polyethylene glycol, 3 parts of polyhydroxybutyl ester, 38 parts of polyethylene, 5 parts of photosensitizer, 24 parts of straw filler, mica 20 parts of granules, 16 parts of starch and 4 parts of additives. Among them, polylactic acid is L-type polylactic acid, and the form of polylactic acid is granular. Additives include stabilizers and flame retardants.

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Abstract

The invention discloses a degradable electrical insulating material which comprises 50-65 parts of polylactic acid, 5-20 parts of natural rubber, 3-16 parts of polyhexanediol, 1-5 parts of polyhydroxy butyl ester, 30-45 parts of polyethylene, 2-8 parts of photosensitizer, 18-30 parts of straw filler, 15-25 parts of mica granule, 5-22 parts of starch and 1-7 parts of additive. The electrical insulating material has the advantages of favorable degradability and favorable electrical insulativity, and satisfies the application in the field of electrical insulation.

Description

technical field [0001] The invention relates to insulating materials, in particular to a degradable electrical insulating material for electric wires and cables. Background technique [0002] In the electrical field, polyvinyl chloride or cross-linked polyethylene are widely used as electrical insulating materials due to their excellent electrical and mechanical properties. However, these polymer insulating materials cannot be degraded naturally after they are scrapped, and can only be disposed of by burial or incineration. The burial will pollute the soil, and the harmful gases produced by incineration will pollute the air and the natural environment. [0003] Polylactic acid has excellent biocompatibility and absorbability, and is non-toxic and non-irritating. It can be completely decomposed into CO in nature under the action of microbial secreted enzymes. 2 and H 2 O, which is non-polluting to the environment, is one of the most promising biodegradable polymers currentl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/04C08L7/00C08L71/08C08L23/06C08L97/02C08L3/02C08K3/34
CPCC08L67/04C08L2201/06C08L2203/202C08L2205/035C08L7/00C08L71/08C08L23/06C08L97/02C08L3/02C08K3/34
Inventor 颜欢
Owner 吴江市黄浦冷热缩制品有限公司