Degradable electric-insulation material

An insulating material and electric power technology, applied in the direction of organic insulators, plastic/resin/wax insulators, etc., can solve the problems of deteriorating human living environment, improper application of insulating materials, secondary environmental pollution, etc. Effects of stability and flame retardant properties, high mechanical properties

Active Publication Date: 2015-02-18
PUYANG POWER SUPPLY COMPANY STATE GRID HENAN ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Improper application of insulating materials may also cause the greenhouse effect, destroy the ozone layer, and form acid rain, etc.
The application of insulating materials for wire and cable should comprehensively consider the stability of the chemical composition of the material, such as controlling the amount of PFC and HFC materials, and recycling insulating materials that have environmental pollution e

Method used

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  • Degradable electric-insulation material

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0016] Example 1

[0017] A degradable electrical insulation material, which is made of the following raw materials: L-polylactic acid 55Kg, bacterial cellulose (1mm in length) 30Kg, cross-linked polyethylene 15Kg, polyvinyl chloride 25Kg, decabromodiphenyl ether 5Kg, decabromodiphenylethane 10, hydroxyethyl cellulose 8Kg, glass fiber 22Kg, starch ether 18Kg, polycarbonate 25Kg, polyvinyl alcohol 12Kg, ethylene propylene rubber 24Kg, ethylene propylene rubber 24Kg, silane coupling agent 10Kg .

[0018] Take the above-mentioned raw materials according to the weight Kg, add each raw material in the centrifuge in turn, and stir for 8 minutes under the condition of 850 r / min. After mixing evenly, enter the twin-screw extruder to extrude into a molten state, and the temperature is controlled at 200°C, then use the injection machine to quickly inject the melt into the mold, the mold is closed and cooled to shape, after the mold is opened, the finished product enters the auxiliary m...

Example Embodiment

[0019] Example 2

[0020] The degradable electrical insulating material of the present embodiment is made of the following raw materials: 50Kg of L-polylactic acid, 30Kg of bacterial cellulose (2mm in length), 10Kg of cross-linked polyethylene, 20Kg of polytetrafluoroethylene, chlorinated Paraffin wax 5Kg, decabromodiphenylethane 5, hydroxyethyl cellulose 5Kg, glass fiber 20Kg, starch ether 10Kg, polycarbonate 20Kg, polyvinyl alcohol 10Kg, ethylene propylene rubber 20Kg, silane coupling agent 5Kg.

[0021] The preparation method of the degradable electrical insulating material of this embodiment is characterized in that: Weigh the above-mentioned raw materials according to the weight Kg, add each raw material to the centrifuge in turn, stir for 5 minutes under the condition of 1000r / min, and mix well , enter the twin-screw extruder and extrude into a molten state, the temperature is controlled at 180°C, and then the molten body is quickly injected into the mold with an injecti...

Example Embodiment

[0022] Example 3

[0023] The degradable electric insulating material of present embodiment, it is made of following raw material: L-polylactic acid 60Kg, bacterial cellulose 40Kg, cross-linked polyethylene 20Kg, chlorosulfonated polyethylene 30Kg, chlorinated paraffin 10Kg, ten Bromodiphenylethane 20, hydroxyethyl cellulose 15Kg, glass fiber 30Kg, starch ether 20Kg, polycarbonate 30Kg, polyvinyl alcohol 15Kg, ethylene propylene rubber 25Kg, silane coupling agent 10Kg.

[0024] The preparation method of the degradable electrical insulation material of this embodiment is characterized in that: weigh the above-mentioned raw materials according to the weight Kg, add each raw material to the centrifuge in turn, stir for 6 minutes under the condition of 900r / min, and mix evenly , enter the twin-screw extruder to extrude into a molten state, the temperature is controlled at 185°C, and then the molten body is quickly injected into the mold with an injection machine, the mold is close...

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Abstract

The invention discloses a degradable electric-insulation material which is prepared by the following steps: adding the following raw materials in parts by weight into a centrifugal machine: 50-60 parts of L-polylactic acid, 30-40 parts of bacterial cellulose, 10-20 parts of crosslinked polyethylene, 20-30 parts of halogen-containing flame-retardant material, 5-10 parts of halogen-containing flame retardant, 5-20 parts of decabromodiphenylethane, 5-15 parts of hydroxyethyl cellulose, 20-30 parts of glass fiber, 10-20 parts of starch ether, 20-30 parts of polycarbonate, 10-15 parts of polyvinyl alcohol, 20-25 parts of ethylene-propylene rubber and 5-10 parts of silane coupling agent; uniformly mixing, sending into a double screw extruder to extrude into a molten state, controlling the temperature at 180-200 DEG C, quickly injecting the molten mass into a mold by using an injection machine, and trimming in the auxiliary mold by using a cutting machine. The electric material has the advantages of excellent mechanical properties, excellent cold/heat stability, excellent flame retardancy and high biodegradability, and is hopeful to be widely used as a novel insulation material.

Description

technical field [0001] The invention belongs to the technical field of insulating materials, in particular to a degradable electric insulating material. Background technique [0002] Power cables are generally laid below the surface and are often used as power lead-in or lead-out lines for power plants, substations, and factories and mines. Compared with overhead lines, power cables are less affected by the climate because they are laid below the ground surface, are safe, reliable, concealed and durable, but the cost of materials, laying costs, and maintenance costs are relatively high, and maintenance and troubleshooting are also more difficult. Low-voltage distribution networks and electrical equipment wires and cables often use plastic sheathed wires with PVC sheaths as power transmission lines. These wires are generally buried in walls or under the ground through pipes, and can also be laid in the form of open laying. Sparks generated by poor insulation of wires often e...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L23/06C08L1/26C08L69/00C08L29/04C08L23/16C08L3/08C08L1/02C08L27/06C08L27/18C08L23/34C08L11/00C08L91/06C08K7/14C08K5/06C08K5/03H01B3/44
Inventor 史敬天黄桥林郝斐杨历伟孟庆昌张梦雨郭道勤
Owner PUYANG POWER SUPPLY COMPANY STATE GRID HENAN ELECTRIC POWER
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