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Low-smoke, halogen-free, high-flame-retardance, oil-resistant and cold-resistant cable material, preparation method thereof and cable

A cable material, high flame-retardant technology, applied in the field of halogen-free flame-retardant cable material and its preparation, can solve the problems of unsatisfactory weather resistance, not well resolved, and poor low temperature resistance

Active Publication Date: 2014-03-12
上海至正新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the field of rail transit, the basic materials of cable insulation materials used in existing vehicles are basically polyethylene or polypropylene. Such materials do not have ideal weather resistance at room temperature, and oil resistance also needs to be improved. Low temperature performance is not very good
However, poor high temperature and low temperature resistance and poor oil resistance will cause the cable to age quickly in oil, and its electrical performance will hardly meet the national standard after aging.
[0005] Oil-resistant and cold-resistant cables have not been well resolved due to certain defects in formula design and material selection.

Method used

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  • Low-smoke, halogen-free, high-flame-retardance, oil-resistant and cold-resistant cable material, preparation method thereof and cable

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Effect test

preparation example Construction

[0053] The preparation method of the cable can adopt conventional techniques in the art.

[0054] Preparation

[0055] The third aspect of the present invention provides a method for preparing the low-smoke, halogen-free, highly flame-retardant, oil-resistant and cold-resistant cable material of the present invention, the preparation method comprising the following steps:

[0056] 1) Put the prescribed amount of methyl vinyl silicone rubber and EVA into the mixer, and mix for 3-4 minutes;

[0057] 2) Put all the remaining ingredients into the internal mixer, and continue to banbury together with the previously input methyl vinyl silicone rubber and EVA for 5-6 minutes; the whole banbury process takes 8-10 minutes to get the finished banbury semi-finished products;

[0058]3) The semi-finished product after banburying is extruded and granulated by double-cone feeding device and twin-screw extruder to obtain the low-smoke, halogen-free, high-flame-retardant, oil-resistant and ...

Embodiment 1

[0067] Each component name and each component parts by weight are as follows:

[0068]

[0069]

[0070] The preparation method of the above-mentioned invention, it comprises the following processing steps:

[0071] 1) Put the prescribed amount of methyl vinyl silicone rubber and EVA into the mixer, and mix for 3-4 minutes;

[0072] 2) Put all the remaining ingredients into the internal mixer, and continue to banbury together with the previously input methyl vinyl silicone rubber and EVA for 5-6 minutes; the whole banbury process takes 8-10 minutes to get the finished banbury Semi-finished products; 3) The semi-finished products that have been banburyed are extruded and granulated through a double-cone feeding device and a twin-screw extruder to obtain the low-smoke, halogen-free, high-flame-retardant, oil-resistant and cold-resistant cable material; each of the twin-screws The stage temperature control starts from the feeding port, which is 90-100°C, 90-100°C, 90-95°C,...

Embodiment 2

[0075] Each component name and each component parts by weight are as follows:

[0076]

[0077] The preparation method of above-mentioned cable material is identical with embodiment 1

[0078] The product in embodiment 2 is carried out performance detection test, and each performance numerical value is as shown in performance embodiment 2.

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Abstract

The invention provides a low-smoke, halogen-free, high-flame-retardance, oil-resistant and cold-resistant cable material and a preparation method thereof. The low-smoke, halogen-free, high-flame-retardance, oil-resistant and cold-resistant cable material comprises the following components in parts by weight: 100 parts of basic material, 80-100 parts of flame retardant A, 10-20 parts of flame retardant B, 0.8-2 parts of antioxidant, 0.4-2 parts of lubricant, 0.8-3 parts of coupling agent, 25-40 parts of reinforcing agent and 0.4-0.6 parts of vulcanizing agent, wherein the basic material is a combination of ethylene-vinyl acetate (EVA) and methyl vinyl silicone rubber; the flame retardant A is a combination of magnesium hydroxide and antimony trioxide; the flame retardant B is a combination of zinc oxide and molybdenum trioxide; the antioxidant is a combination of pentaerythritol tetrakis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate), (antioxidant 1010) and tri(2,4-di-tert-butylphenyl) phosphite (antioxidant 168); and the reinforcing agent is fumed silica. The low-smoke, halogen-free, high-flame-retardance, oil-resistant and cold-resistant cable material has the following characteristics of high abrasion resistance, high flame retardance, good oil resistance and chemical corrosion resistance, low temperature resistance, aging resistance, and excellent mechanical properties and the like. The invention further provides the preparation method of the low-smoke, halogen-free, high-flame-retardance, oil-resistant and cold-resistant cable material.

Description

technical field [0001] The invention relates to a halogen-free flame-retardant cable material and a preparation method thereof, in particular to a low-smoke, halogen-free, high flame-retardant, oil-resistant and cold-resistant cable material, a preparation method and a cable. Background technique [0002] With the rapid growth of wire and cable applications and rapid economic development, the quality and performance requirements of wire and cable materials are increasing in various fields, especially the requirements for high temperature and low temperature resistance, weather resistance and oil resistance of cable materials . [0003] At present, oil-resistant cables have been widely used in my country's petroleum, chemical, marine engineering and rail transit fields. However, with the general demand for oil-resistant cables, accidents caused by poor cable oil resistance are also on the rise every year. [0004] In the field of rail transit, the basic materials of cable in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L83/07C08K13/02C08K3/22C08K3/36C08K5/14H01B7/28H01B7/295B29B9/06B29C47/92B29C48/92
CPCB29B9/06B29C48/92B29C2948/92704C08L23/0853C08L83/04C08L2201/02C08L2201/08C08L2201/22C08L2203/202H01B3/28H01B3/441C08K13/02C08K2003/2224C08K3/2279C08K2003/2296C08K2003/2255B29C48/40B29C2948/92904
Inventor 兰乔波宋刚翁文彪
Owner 上海至正新材料有限公司
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