Field low-temperature-resistant composite cable insulation material and preparation method of same

A technology of composite cables and insulating materials, applied in the directions of insulators, insulated conductors, insulated cables, etc., can solve the problems of hindering the loss of heat of the cable, reducing the wear resistance of the surface, and accelerating the aging speed of the sheath, so as to achieve accelerated heat dissipation, Excellent thermal conductivity, heat dissipation capacity and excellent mechanical properties

Inactive Publication Date: 2017-09-15
WUHU HANGTIAN SPECIAL CABLE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a field low temperature resistant composite cable insulation material and its preparation method, which solves the problem that the existing cable sheath has weak thermal conductivity, which hinders the heat loss inside the cable to a certain extent, and the accumulation of heat will be accelerated. The aging speed of the sheath reduces its surface wear resistance, thereby shortening the life of the cable

Method used

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  • Field low-temperature-resistant composite cable insulation material and preparation method of same
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  • Field low-temperature-resistant composite cable insulation material and preparation method of same

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preparation example Construction

[0033] The present invention also provides a preparation method of cable insulating material, the preparation method comprising:

[0034] 1) Preparation of insulating sleeve: mix alkyd resin, epoxy resin, cresol, butanol etherified amino resin, acrylic resin and ethyl acetate for the first mixing, the temperature of the first mixing is 50 -70°C, the first mixing time is 20-40min;

[0035] After the first mixing, add diatomaceous earth, polyethylene fiber, curing agent and plasticizer in sequence for the second mixing, the temperature of the second mixing is 100-110°C, the time of the second mixing 15-25min, the first insulating sleeve 1 and the second insulating sleeve 2 are obtained after compression molding;

[0036] 2) Preparation of heat pipe: mix polyvinylidene, paraffin, aluminum oxide and coupling agent KH550, then extrude to obtain heat pipe 3;

[0037] 3) Place the prepared heat pipe 3 in the first insulating sleeve 1, glue one end of the heat conducting sheet 4 to ...

Embodiment 1

[0042]1) Preparation of insulating sleeve: Mix 100g alkyd resin, 20g epoxy resin, 5g cresol, 25g butanol etherified amino resin, 5g acrylic resin and 30g ethyl acetate, then mix for the first time. The mixing temperature is 50°C, and the first mixing time is 20 minutes; after the first mixing, add 2g of diatomaceous earth, 2g of polyethylene fiber, 2g of diethylenetriamine and 2g of dioctyl phthalate The ester is kneaded for the second time, the temperature of the second kneading is 100°C, and the time of the second kneading is 15 minutes, and the first insulating sheath 1 and the second insulating sheath 2 are obtained after compression molding;

[0043] 2) Preparation of heat pipe: mix 100g of polyvinylidene, 15g of paraffin, 5g of aluminum oxide and 2g of coupling agent KH550, then extrude to obtain heat pipe 3;

[0044] 3) Place the prepared heat pipe 3 in the first insulating sleeve 1, glue one end of the heat conducting sheet 4 to the outer wall of the heat pipe 3, and g...

Embodiment 2

[0047] 1) Preparation of insulating sleeve: Mix 100g alkyd resin, 40g epoxy resin, 12g cresol, 45g butanol etherified amino resin, 20g acrylic resin and 60g ethyl acetate, then mix for the first time. The mixing temperature is 70°C, and the first mixing time is 40 minutes; after the first mixing, add 10g of diatomaceous earth, 10g of polyethylene fiber, 5g of m-xylylenediamine and 5g of trimellitic acid tris The octyl ester is kneaded for the second time, the temperature of the second kneading is 110°C, and the time of the second kneading is 25 minutes, and the first insulating sheath 1 and the second insulating sheath 2 are obtained after compression molding;

[0048] 2) Preparation of heat pipe: mix 100g of polyvinylidene, 25g of paraffin, 12g of aluminum oxide and 8g of coupling agent KH550, and then extrude to obtain heat pipe 3;

[0049] 3) Place the prepared heat pipe 3 in the first insulating sleeve 1, glue one end of the heat conducting sheet 4 to the outer wall of the...

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Abstract

The invention discloses a field low-temperature-resistant composite cable insulation material and a preparation method of same. The composite cable insulation material includes a first insulation sleeve and a heat-conductive pipe which is located inside and is coaxial to the first insulation sleeve. The heat-conductive pipe is connected to the inner wall of the first insulation sleeve through a plurality of heat-conductive sheets, wherein a cavity is formed between two adjacent heat-conductive sheets. A second insulation sleeve is fixed in each cavity, wherein the outer wall of each second insulation sleeve is at least partly contacted with the heat-conductive sheets. The composite cable insulation material solves the problems that a cable sheath in the prior art is low in heat conductivity and inhibits heat dissipation of interior of the cables to certain degree, and further, aging speed of the sheath may be increased due to heat accumulation, and the wear resistance of surface of the cable sheath is reduced and service life of the cable is reduced.

Description

technical field [0001] The invention relates to the field of cable preparation, in particular to an outdoor low-temperature-resistant composite cable insulation material and a preparation method thereof. Background technique [0002] The sheath of the cable is mostly insulated, and its thermal conductivity is generally around 0.2W / (m·K), which makes the sheath prevent the heat loss inside the cable to a certain extent while providing insulation performance, and the heat accumulation will Accelerating the aging speed of the sheath reduces the wear resistance of the surface and shortens the life of the cable. Contents of the invention [0003] The purpose of the present invention is to provide a field low temperature resistant composite cable insulation material and its preparation method, which solves the problem that the existing cable sheath has weak thermal conductivity, which hinders the heat loss inside the cable to a certain extent, and the accumulation of heat will b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/08C08L63/00C08L61/32C08L33/00C08L23/06C08K3/34C08K5/17C08K5/12C08L27/14C08L91/06C08K3/22C08K5/544H01B3/42H01B7/42
CPCC08L67/08C08K2003/2227C08L27/14C08L2203/18C08L2203/202C08L2205/035C08L2205/16H01B3/421H01B7/428C08L63/00C08L61/32C08L33/00C08L23/06C08K3/34C08K5/12C08L91/06C08K3/22C08K5/544
Inventor 何源章新能付利梅李倩
Owner WUHU HANGTIAN SPECIAL CABLE FACTORY
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