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High temperature-resistant low-smoke flame-retardant rubber cable material and preparation method thereof

A low-smoke, flame-retardant, rubber cable technology, applied in rubber insulators, organic insulators, etc., can solve the problems of poor thermal stability of polyurethane elastomers, cable material flame Good aging performance, physical and mechanical properties and processing technology performance, and great promotional effect

Inactive Publication Date: 2015-10-28
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, resulting in unsatisfactory flame retardancy, weather resistance and thermal stability of the prepared cable materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A high-temperature-resistant, low-smoke, flame-retardant rubber cable material is composed of the following raw materials in parts by weight:

[0036] 60 pieces of Zou film glue

[0037] CR232 neoprene 60 parts

[0038] 30 parts of nitrile rubber

[0039] 4 parts stearic acid

[0040] Titanate coupling agent 4 parts

[0041] Zinc oxide 6 parts

[0042] Environment-friendly rare earth composite stabilizer 4 parts

[0043] Rubber accelerator TMTD 3 parts

[0044] Aluminum hydroxide 100 parts

[0045] Silica glass fiber 100 parts

[0046] The specific performance indicators of the obtained low-smoke flame-retardant rubber cable material are as follows:

[0047] Before aging: elongation at break 250%;

[0048] Tensile strength 10.1N / mm2;

[0049] After aging (120℃*240h), the elongation at break is 200%;

[0050] Tensile strength 11.1N / mm2;

[0051] The change rate of elongation at break is -8.0%, and the change rate of tensile strength is -7.1%;

[0052] Ozone ...

Embodiment 2

[0054] A high-temperature-resistant, low-smoke, flame-retardant rubber cable material is composed of the following raw materials in parts by weight:

[0055] Air-dried film 40 parts

[0056] CR232 neoprene 40 parts

[0057] Nitrile rubber 40 parts

[0058] Stearic acid 5 parts

[0059] Titanate coupling agent 5 parts

[0060] Zinc oxide 5 parts

[0061] Environment-friendly rare earth composite stabilizer 4 parts

[0062] Rubber accelerator TMTD 5 parts

[0063] Magnesium hydroxide 120 parts

[0064] Silica glass fiber 100 parts

[0065] The specific performance indicators of the obtained low-smoke flame-retardant rubber cable material are as follows:

[0066] Before aging: elongation at break 210%;

[0067] Tensile strength 11.1N / mm2;

[0068] After aging (120℃*240h), the elongation at break is 195%;

[0069] Tensile strength 11.5 N / mm2;

[0070] The change rate of elongation at break is -8.5%, and the change rate of tensile strength is -8.1%;

[0071] Ozone resist...

Embodiment 3

[0073] A high-temperature-resistant, low-smoke, flame-retardant rubber cable material is composed of the following raw materials in parts by weight:

[0074] Air-dried film 100 copies

[0075] CR232 neoprene 80 parts

[0076] 35 parts of nitrile rubber

[0077] 4 parts stearic acid

[0078] Titanate coupling agent 4 parts

[0079] Zinc oxide 5 parts

[0080] Environmental protection rare earth composite stabilizer 5 parts

[0081] Rubber accelerator TMTD 3 parts

[0082] Aluminum hydroxide 120 parts

[0083] Environmental protection antimony trioxide 100 parts

[0084] The specific performance indicators of the obtained low-smoke flame-retardant rubber cable material are as follows:

[0085] Before aging: elongation at break 210%;

[0086] Tensile strength 12.1N / mm2;

[0087] After aging (120℃*240h), the elongation at break is 205%;

[0088] Tensile strength 11.7 N / mm2;

[0089] The change rate of elongation at break is -9.0%, and the change rate of tensile strengt...

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Abstract

The invention relates to a cable material and a preparation method thereof and concretely relates to a high temperature-resistant low-smoke flame-retardant rubber cable material and a preparation method thereof. The high temperature-resistant low-smoke flame-retardant rubber cable material comprises, by weight, 40-100 parts of natural rubber, 40-80 parts of chloroprene rubber, 30-40 parts of nitrile rubber, 4-5 parts of stearic acid, 4-5 parts of a coupling agent, 5-6 parts of zinc oxide, 4-5 parts of a stabilizing agent, 3-5 parts of a promoter, 100-120 parts of a fire retardant and 60-100 parts of a filler. The natural rubber mainly comprises polyisoprene and is one of an air-dried rubber sheet and crepe. The promoter is a rubber promoter TMTD. The chloroprene rubber is an elastomer formed by alpha-polymerization of chloroprene as a main raw material. The cable material has the advantages of low smoke, flame resistance, weather resistance, environmental friendliness, safety, excellent physical and mechanical properties and processability, processing easiness, environmentally friendly raw materials, low toxicity and good generalization performance.

Description

technical field [0001] The invention relates to a cable wire material and a preparation method thereof, in particular to a high-temperature-resistant, 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 focu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L11/00C08L9/02C08K13/04C08K13/02C08K5/09C08K3/22C08K5/12C08K7/14H01B3/28B29C47/92B29C48/92
CPCC08L7/00B29C48/92B29C2948/92704C08L11/00C08L2201/02C08L2201/08C08L2203/202C08L2205/03H01B3/28C08L9/02C08K13/04C08K7/14C08K5/09C08K2003/2296C08K2003/2227C08K2003/2224C08K13/02C08K3/2279
Inventor 梁忠顺
Owner 梁忠顺
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