Environment-friendly low-smoke flame-retardant rubber cable material and preparation method thereof

A low-smoke flame-retardant, rubber cable technology, applied in the direction of rubber insulators, organic insulators, etc., can solve the problems of cable material flame retardancy, weather resistance, thermal stability, poor thermal stability of polyurethane elastomers, etc., to achieve physical and mechanical Good performance and processing technology performance, good flame retardancy, and strong practicability

Inactive Publication Date: 2015-10-07
梁忠顺
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the thermal stability of polyurethane elastomers used in cable materials in the prior art is relatively poor,

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0035] Example 1

[0036] An environmentally friendly low-smoke flame-retardant rubber cable material, which is composed of the following parts by weight:

[0037] Zou piece glue 60 copies

[0038] 60 parts of neoprene

[0039] Nitrile rubber 30 parts

[0040] Stearic acid 4 parts

[0041] Titanate coupling agent 4 parts

[0042] Zinc oxide 6 parts

[0043] Calcium zinc stabilizer 4 parts

[0044] Antioxidant BHT 5 parts

[0045] Rubber accelerator TMTD 3 parts

[0046] Aluminum hydroxide 100 parts

[0047] Silica glass fiber 100 parts

[0048] The specific performance indicators of the obtained low-smoke flame-retardant rubber cable material are as follows:

[0049] Before aging: 250% elongation at break;

[0050] Tensile strength 10.1N / mm2;

[0051] After aging (120℃ *240h) the elongation at break is 200%;

[0052] Tensile strength 11.1N / mm2;

[0053] The rate of change in elongation at break is -8.0%, and the rate of change in tensile strength is -7.1%;

[0054] Ozone resistant (25℃, concentration...

Example Embodiment

[0055] Electrical properties: volume resistivity 1.8*1012Ω.m, breakdown strength 17kV / mm. Example 2

[0056] An environmentally friendly low-smoke flame-retardant rubber cable material, which is composed of the following parts by weight:

[0057] Air dry film 40 copies

[0058] 40 parts of neoprene

[0059] Nitrile rubber 40 parts

[0060] 5 parts stearic acid

[0061] Titanate coupling agent 5 parts

[0062] Zinc oxide 5 parts

[0063] Calcium zinc stabilizer 4 parts

[0064] Antioxidant BHT 6 parts

[0065] Rubber accelerator TMTD 5 parts

[0066] Magnesium hydroxide 120 parts

[0067] Silica glass fiber 100 parts

[0068] The specific performance indicators of the obtained low-smoke flame-retardant rubber cable material are as follows:

[0069] Before aging: 210% elongation at break;

[0070] Tensile strength 11.1N / mm2;

[0071] After aging (120℃ *240h) the elongation at break is 195%;

[0072] Tensile strength 11.5 N / mm2;

[0073] The rate of change of elongation at break is -8.5%, and the rate...

Example Embodiment

[0075] Electrical properties: volume resistivity 1.9*1012Ω.m, breakdown strength 17kV / mm. Example 3

[0076] An environmentally friendly low-smoke flame-retardant rubber cable material, which is composed of the following parts by weight:

[0077] Air-dry film 100 copies

[0078] 80 parts of neoprene

[0079] Nitrile rubber 35 parts

[0080] Stearic acid 4 parts

[0081] Titanate coupling agent 4 parts

[0082] Zinc oxide 5 parts

[0083] Calcium zinc stabilizer 5 parts

[0084] Antioxidant BHT 5 parts

[0085] Rubber accelerator TMTD 3 parts

[0086] Magnesium hydroxide 120 parts

[0087] Environmental protection antimony trioxide 100 parts

[0088] The specific performance indicators of the obtained low-smoke flame-retardant rubber cable material are as follows:

[0089] Before aging: 210% elongation at break;

[0090] Tensile strength 12.1N / mm2;

[0091] After aging (120℃ *240h) the elongation at break is 205%;

[0092] Tensile strength 11.7 N / mm2;

[0093] The rate of change in elongation at bre...

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Abstract

The invention relates to a cable material and a preparation method thereof, in particular to an environment-friendly low-smoke flame-retardant rubber cable material and a preparation method thereof. The environment-friendly low-smoke flame-retardant rubber cable material consists of, by weight, 40-100 parts of natural rubber, 40-80 parts of chloroprene rubber, 30-40 parts of butadiene-acrylonitrile rubber, 4-5 parts of stearic acid, 4-5 parts of coupling agent, 5-6 parts of zinc oxide, 4-5 parts of stabilizing agent, 5-6 parts of antioxidant BHT, 3-5 parts of accelerant, 100-120 parts of flame retardant and 60-100 parts of filling agent, wherein the main component of the natural rubber is polyisoprene, the natural rubber is one of air-dried rubber pieces and crepe, the accelerant is rubber accelerant TMTD, and the chloroprene rubber is an elastomer generated by using chloroprene as a main raw material through alpha-polymerization. The environment-friendly low-smoke flame-retardant rubber cable material has the advantages that the cable material has the advantages of low smoke, flame retarding and weather proofing and is environment-friendly and safe, the prepared cable materials is good in physical and mechanical performance and machining manufacturability and easy to machine, the raw materials are more environment-friendly and is low in toxicity, and popularization strength is large.

Description

technical field [0001] The invention relates to a cable wire material and a preparation method thereof, in particular to an environment-friendly low-smoke flame-retardant rubber cable material and a preparation method thereof. Background technique [0002] With the rapid development of economy, cables are widely used in communication, electric power and other fields. However, since cables are combustible substances, with the frequent occurrence of electrical fire accidents, the flame retardant problem of cables has attracted the attention of countries all over the world. When the cable burns, it releases a large amount of smoke and toxic and corrosive gas, which is a dangerous factor in a fire. It hinders people's safe evacuation and fire fighting work during a fire, causing serious loss of life and property. In recent years, there are more and more fires caused by the aging of cables. Therefore, the improvement of the weather resistance of cables has become the focus of re...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L11/00C08L9/02C08K13/04C08K5/09C08K3/22C08K7/14C08K5/40C08K13/02H01B3/28
CPCC08L7/00B29C48/92B29C2948/92704C08L9/02C08L11/00C08L2201/02C08L2203/202C08L2205/03H01B3/28C08K13/04C08K7/14C08K5/09C08K2003/2296C08K2003/2227C08K2003/2224C08K13/02C08K3/2279
Inventor 梁忠顺
Owner 梁忠顺
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