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Cable outer layer insulation material and preparation method thereof

A technology for outer layer insulation and cable, applied in the field of cable outer layer insulation material and its preparation, can solve problems such as poor corona resistance, and achieve the effects of simple preparation method, good protection and isolation, and good service life

Inactive Publication Date: 2015-09-23
SUZHOU KEMAO ELECTRONICS MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Polyethylene terephthalate has excellent physical and mechanical properties in a wide temperature range, and can be used for a long time at a temperature of 120°C. It has good electrical insulation, creep resistance, fatigue resistance, and Friction and dimensional stability, but poor corona resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Weigh polyethylene terephthalate 78kg, polyvinyl butyral 26kg, bisphenol hexafluoroacetone diglycidyl ether 15kg, tourmaline powder 3kg, hexamethylcyclotrisiloxane 2kg, bis- (Phenyldimethylsiloxane) methylsilanol 3kg, benzoyl peroxide butyl acetate 0.02kg and polyethylene glycol 0.8kg, add to a high-pressure homogenizer and mix evenly under 110°C and 21MPa pressure;

[0030] (2) Add 1 kg of polydeburea, 0.01 kg of copper chloride, and 0.8 kg of borosilicate to the above components, mix evenly, add to a twin-screw extruder, melt, extrude, dry, and pelletize to obtain a cable outer Layer insulation.

[0031] The temperature of each section of the twin-screw extruder is as follows: the temperature of the first zone is 195°C, the temperature of the second zone is 210°C, the temperature of the third zone is 225°C, and the temperature of the fourth zone is 230°C.

[0032] The performance test results of the prepared cable outer insulation materials are shown in Table 1. ...

Embodiment 2

[0034] (1) Weigh polyethylene terephthalate 78kg, polyvinyl butyral 26kg, bisphenol hexafluoroacetone diglycidyl ether 15kg, tourmaline powder 3kg, hexamethylcyclotrisiloxane 2kg, bis- (Phenyldimethylsiloxane) methylsilanol 3kg, benzoyl peroxide butyl acetate 0.02kg, add to a high-pressure homogenizer and mix evenly under 110°C and 21MPa pressure;

[0035] (2) Add 1 kg of polydeburea, 0.01 kg of copper chloride, and 0.8 kg of borosilicate to the above components, mix evenly, add to a twin-screw extruder, melt, extrude, dry, and pelletize to obtain a cable outer Layer insulation.

[0036] The temperature of each section of the twin-screw extruder is as follows: the temperature of the first zone is 195°C, the temperature of the second zone is 210°C, the temperature of the third zone is 225°C, and the temperature of the fourth zone is 230°C.

[0037] The performance test results of the prepared cable outer insulation materials are shown in Table 1.

Embodiment 3

[0039] (1) Weigh polyethylene terephthalate 95kg, polyvinyl butyral 33kg, bisphenol hexafluoroacetone diglycidyl ether 25kg, tourmaline powder 8kg, hexamethylcyclotrisiloxane 6kg, bis- (Phenyldimethylsiloxane)methylsilanol 5kg, benzoyl peroxide butyl acetate 0.5kg and polyethylene glycol 0.8kg, add to a high pressure homogenizer and mix evenly at 125°C and 23MPa pressure;

[0040] (2) Add 2kg of polydeburea, 0.5kg of copper chloride dihydrate, and 0.8kg of borosilicate to the above components, mix evenly, add to a twin-screw extruder, melt, extrude, dry, and pelletize to obtain Cable outer insulation material.

[0041] The temperature of each section of the twin-screw extruder is as follows: the temperature of the first zone is 200°C, the temperature of the second zone is 220°C, the temperature of the third zone is 240°C, and the temperature of the fourth zone is 240°C.

[0042] The performance test results of the prepared cable outer insulation materials are shown in Table 1...

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PUM

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Abstract

The invention discloses a cable outer layer insulation material and a preparation method thereof. The cable outer layer insulation material is prepared by using the following components in parts by weight: 78-95 parts of polyethylene glycol terephthalate, 26-33 parts of polyvinyl butyral, 15-25 parts of bisphenol hexafluoroacetone diglycidyl ether, 3-8 parts of tourmaline powder, 2-6 parts of hexamethylcyclotrisiloxane, 3-5 parts of bis-(phenyl dimethyl siloxane) methylsiliconate, 1-2 parts of polysebacic urea, 0.02-0.5 parts of benzoyl peroxide butyl acetate and 0.01-0.5 parts of copper chloride. The invention further provides a preparation method for the cable outer layer insulation material.

Description

technical field [0001] The invention belongs to the field of insulating materials, in particular to a cable outer layer insulating material and a preparation method thereof. Background technique [0002] Polyethylene terephthalate is the transesterification of dimethyl terephthalate and ethylene glycol or the esterification of terephthalic acid and ethylene glycol to synthesize bishydroxyethyl terephthalate, and then Prepared by polycondensation reaction. Polyethylene terephthalate is a crystalline saturated polyester, a highly crystalline polymer with a smooth and shiny surface. [0003] Polyethylene terephthalate has excellent physical and mechanical properties in a wide temperature range, and can be used for a long time at a temperature of 120°C. It has good electrical insulation, creep resistance, fatigue resistance, and Friction and dimensional stability, but its corona resistance is poor. Contents of the invention [0004] In view of the above requirements, the p...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L29/14C08K13/02C08K3/38C08K5/14C08K3/16H01B3/42
Inventor 邹黎清
Owner SUZHOU KEMAO ELECTRONICS MATERIALS TECH
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