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High-strength low temperature resistant cable sheath material

A technology of cable sheath and low temperature resistance, which is applied in the field of high-strength and low-temperature resistant cable sheath materials, which can solve the problems of low temperature resistance of polyvinyl chloride, etc., and achieve the effects of good high-voltage resistance, reduced production costs, and superior mechanical properties

Inactive Publication Date: 2014-08-20
JINYUAN ELECTRIC GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polyvinyl chloride is a good material and is widely used in all walks of life. However, polyvinyl chloride is not resistant to low temperature, especially in winter in the north, which poses a great challenge to the wire and cable produced by polyvinyl chloride. How to prepare a cable sheath material with excellent low temperature resistance, high mechanical strength and good thermal stability has become a technical problem to be solved at present

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A high-strength and low-temperature-resistant cable sheath material, including: 42 parts of polyvinyl chloride, 26 parts of ethylene-propylene-diene rubber, 25 parts of ethylene-propylene-diene rubber in parts by weight, and put them into a plastic mixer for 3 minutes to obtain the first material , the masticating temperature is 65°C;

[0015] Based on polyvinyl chloride, 53.5wt% of acrylic acid-grafted high-density polyethylene and 24wt% of bentonite are melt-blended in a rheometer to obtain a second material, wherein the methacrylic acid-grafted high-density polyethylene adopts the following process Preparation: Send high-density polyethylene into the rheometer, then dissolve dicumyl peroxide in acrylic acid and send it into the rheometer for blending, the concentration of acrylic acid is 76.5%, and the blending temperature is 173°C , the blending time is 25min, wherein the weight ratio of high-density polyethylene to dicumyl peroxide is 44:2.1, and the weight molar r...

Embodiment 2

[0018] A high-strength and low-temperature-resistant cable sheath material, comprising: 50 parts of polyvinyl chloride, 24 parts of EPDM rubber, 31 parts of EPDM rubber in parts by weight, and put them into a plastic mixer for 2 minutes to obtain the first material. , the masticating temperature is 72°C;

[0019] Based on polyvinyl chloride, 50.5wt% of acrylic acid grafted high-density polyethylene and 26.2wt% of bentonite are melt-blended in a rheometer to obtain the second material, wherein the methacrylic acid grafted high-density polyethylene is as follows Process preparation: Send high-density polyethylene into the rheometer, then dissolve dicumyl peroxide in acrylic acid and send it into the rheometer for blending. The concentration of acrylic acid is 80.24%, and the blending temperature is 163 ℃, the blending time is 26min, wherein the weight ratio of high-density polyethylene and dicumyl peroxide is 40.5:2.5, and the weight molar ratio (g:moL) of high-density polyethyl...

Embodiment 3

[0022] A high-strength and low-temperature resistant cable sheath material, including: 46 parts of polyvinyl chloride, 26 parts of ethylene propylene rubber, 26 parts of ethylene propylene rubber and 26 parts of ethylene propylene rubber in a plastic mixer for 2.5 minutes to obtain the first Material, masticating temperature is 68 ℃;

[0023] Based on polyvinyl chloride, 52.4wt% acrylic acid-grafted high-density polyethylene and 25.5wt% bentonite are melt-blended in a rheometer to obtain the second material, wherein the methacrylic acid-grafted high-density polyethylene is as follows Process preparation: Send high-density polyethylene into the rheometer, then dissolve dicumyl peroxide in acrylic acid and send it into the rheometer for blending. The concentration of acrylic acid is 75.5%, and the blending temperature is 172 ℃, the blending time is 26min, wherein the weight ratio of high-density polyethylene and dicumyl peroxide is 43:2.3, and the weight molar ratio (g:moL) of h...

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PUM

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Abstract

The invention discloses a high-strength low temperature resistant cable sheath material which is prepared as follows: putting polyvinyl chloride, unitary ethylene propylene rubber, rubber and ethylene-propylene-diene monomer rubber into a plasticator for plastication; melting and mixing acrylic acid grafted high density polyethylene and bentonite in a flowing deformation instrument to obtain a second material, sending a first material and the second material into a mixing machine to mix evenly, when the temperature is increased to 80-85 DEG C, sequentially adding an antioxidant, N, N '-ethylene distearic amide, zinc stearate, microencapsulated red phosphorus and white carbon black, when the temperature is increased to 125-132 DEG C, adding gamma-aminopropyltrimethoxysilane, triallyl cyanurate and zinc methacrylate, mixing, then extrusion-molding and cutting to obtain the high-strength low temperature resistant cable sheath material. The high-strength low temperature resistant cable sheath material is excellent in low temperature resistant performance, high in mechanical strength and thermal deformation temperature, and good in thermal stability.

Description

technical field [0001] The invention relates to the technical field of cable sheaths, in particular to a high-strength and low-temperature-resistant cable sheath material. Background technique [0002] It is well known that the sheath of the cable plays a vital role in protecting the internal material from damage and maintaining its normal operation, no matter from the perspective of mechanical properties, thermal chemical resistance and disaster protection. In the specific application process, the cable sheath The cover must be resistant to sunlight, UV radiation, ozone aging, and chemical erosion, and can withstand severe weather conditions such as high temperature and severe cold, and at the same time, it can still guarantee or temporarily guarantee its normal operation in the case of accidental disasters. Polyvinyl chloride is a good material and is widely used in all walks of life. However, polyvinyl chloride is not resistant to low temperature, especially in winter in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/16C08L51/06C08K13/06C08K3/34C08K9/10C08K3/02C08K3/36C08K5/20C08K5/098C08K5/544C08K5/3492C08F255/02C08F220/06H01B3/44H01B7/17
Inventor 景宝玺
Owner JINYUAN ELECTRIC GRP
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