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Acid and alkali resistant anti-interference shielding computer cable

A computer cable, acid and alkali resistance technology, applied in the direction of power cables with shielding layer/conductive layer, communication cables, power cables, etc., can solve the problems of cable damage, poor acid and alkali resistance, etc., and achieve excellent performance and tensile strength Good strength and elongation at break, good resistance to environmental stress cracking

Pending Publication Date: 2022-03-08
ANHUI ELECTRIC GRP SHARES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the production environment of steel, petroleum, chemical industry, etc., there is a large amount of acid and alkali corrosive gas or liquid environment, which will cause damage to the cables laid in the cable trench. The existing computer cable outer sheath has poor acid and alkali resistance. , so the consequences for the computer cables used are more severe

Method used

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  • Acid and alkali resistant anti-interference shielding computer cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The preparation of polyethylene modified barium sulfate is as follows:

[0025] S1. Dissolve barium sulfate in deionized water, heat to 70°C, stir, add 12-hydroxystearic acid, stir, then add barium sulfate solution dropwise until complete reaction, filter, wash with hot ethanol solution and deionized water, Dry to obtain stearic acid modified barium sulfate particles; wherein the mass ratio of barium sulfate to 12-hydroxystearic acid is 100:7;

[0026] S2. Vacuumize the reaction vessel and replace it with nitrogen for 3 times, then add stearic acid-modified barium sulfate particles, methylaluminoxane and toluene into the reaction vessel, react at 60°C for 4 hours, filter, and wash with toluene , to obtain methyl aluminoxane modified barium sulfate;

[0027] S3, vacuumize the reaction vessel, and replace it with nitrogen for 3 times, then modify barium sulfate and metallocene compound Cp with methyl aluminoxane 2 ZrCl 2 Add it into a reaction vessel, react at 60°C for...

Embodiment 2

[0030] The preparation of polyethylene modified barium sulfate is as follows:

[0031] S1. Dissolve barium sulfate in deionized water, heat to 75°C, stir, add 12-hydroxystearic acid, stir, then add barium sulfate solution dropwise until complete reaction, filter, wash with hot ethanol solution and deionized water, Dry to obtain stearic acid-modified barium sulfate particles; wherein, the mass ratio of barium sulfate and 12-hydroxystearic acid is 100:10;

[0032] S2. Vacuumize the reaction vessel and replace it with nitrogen for 3 times, then add stearic acid-modified barium sulfate particles, methylaluminoxane and toluene into the reaction vessel, react at 65°C for 3h, filter, and wash with toluene , to obtain methyl aluminoxane modified barium sulfate;

[0033] S3, vacuumize the reaction vessel, and replace it with nitrogen for 3 times, then modify barium sulfate and metallocene compound Cp with methyl aluminoxane 2 ZrCl 2 Add it into a reaction vessel, react at 65°C for 3...

Embodiment 3

[0036] The preparation of polyethylene modified barium sulfate is as follows:

[0037] S1. Dissolve barium sulfate in deionized water, heat to 80°C, stir, add 12-hydroxystearic acid, stir, then add barium sulfate solution dropwise until complete reaction, filter, wash with hot ethanol solution and deionized water, Dry to obtain stearic acid-modified barium sulfate particles; wherein, the mass ratio of barium sulfate and 12-hydroxystearic acid is 100:15;

[0038] S2. Vacuumize the reaction vessel and replace it with nitrogen for 3 times, then add stearic acid-modified barium sulfate particles, methylaluminoxane and toluene into the reaction vessel, react at 70°C for 2 hours, filter, and wash with toluene , to obtain methyl aluminoxane modified barium sulfate;

[0039] S3, vacuumize the reaction vessel, and replace it with nitrogen for 3 times, then modify barium sulfate and metallocene compound Cp with methyl aluminoxane 2 ZrCl 2 Add it into a reaction vessel, react at 70°C ...

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Abstract

The invention discloses an acid and alkali resistant anti-interference shielding computer cable, which relates to the technical field of computer cables and comprises a cable core, an insulating layer wrapping the cable core, a shielding layer wrapping the insulating layer and an outer sheath layer wrapping the shielding layer. The outer sheath layer is prepared from the following raw materials in parts by weight: 35 to 45 parts of linear low-density polyethylene, 50 to 60 parts of high-density polyethylene, 5 to 10 parts of EVA, 20 to 30 parts of polyethylene modified barium sulfate, 1 to 3 parts of ammonium polyphosphate, 1 to 3 parts of melamine borate, 1 to 3 parts of pentaerythritol, 3 to 5 parts of magnesium stearate, 0.5 to 1 part of DCP, 0.5 to 1 part of TAIC, 0.5 to 1 part of antioxidant and 0.2 to 0.6 part of maleic anhydride grafted polyethylene. The prepared cable sheath material is excellent in performance, good in tensile strength and elongation at break, good in environmental stress cracking resistance, oil resistance, heat resistance, acid and alkali resistance and the like, and good in safe use performance in the petrochemical industry and the iron and steel industry.

Description

technical field [0001] The invention relates to the technical field of computer cables, in particular to an acid and alkali resistant and anti-interference shielded computer cable. Background technique [0002] Computer cables are cables for electrical equipment, suitable for electronic computers and automation instruments with a rated voltage of 500V and below that require high anti-interference. Computer cables belong to cables for electrical equipment. The structure and composition materials of cables for electrical equipment are the most complicated. According to the special requirements of operating temperature and working environment, there are various types of composition materials for each structure of computer cables. The outer sheath layer of the cable can be made of polyethylene , polyvinyl chloride, cross-linked polyethylene, fluoroplastics and other materials. [0003] In the production environment of steel, petroleum, chemical industry, etc., there is a large ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/28H01B3/18H01B3/44H01B7/22H01B7/02H01B7/29H01B9/02H01B11/10C08L23/06C08L23/08C08K9/10C08K3/30C08K3/32C08K5/55C08K5/053C08K5/098
CPCH01B7/2806H01B7/28H01B7/228H01B7/29H01B7/02H01B3/44H01B3/18H01B11/1033H01B9/024H01B7/295C08L23/06C08L23/08C08K9/10C08K3/30C08K3/32C08K5/55C08K5/053C08K5/098C08L2207/062C08K2003/3045C08K2003/323C08L2201/02C08L2203/202C08L23/0815C08L23/0853Y02A30/00
Inventor 王子祥吴松如郑有松李福春
Owner ANHUI ELECTRIC GRP SHARES
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