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Thermoplastic elastomer halogen-free flame retardant cable material for external use and preparation method thereof

A technology of thermoplastic elastomers and thermoplastic polyurethanes, applied in the direction of plastic/resin/wax insulators, insulators, organic insulators, etc., can solve problems such as short service life, decreased material flexibility, and weakened thermoplasticity and elasticity of filling materials. Improve the effect of thermoplasticity, strict ratio and scientific formula

Inactive Publication Date: 2018-10-12
ANHUI NIKOLA ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems in the prior art that due to the mixing of a large amount of inorganic flame retardants, the thermoplasticity and elasticity of the filling material are weakened, the flexibility of the material is reduced, and the service life is not long. Bulk halogen-free flame-retardant cable external material and preparation method thereof

Method used

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  • Thermoplastic elastomer halogen-free flame retardant cable material for external use and preparation method thereof
  • Thermoplastic elastomer halogen-free flame retardant cable material for external use and preparation method thereof

Examples

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Effect test

Embodiment 1

[0015] A thermoplastic elastomer halogen-free flame-retardant cable external material proposed by the present invention includes the following raw materials in parts by weight: 20 parts of thermoplastic polyurethane, 15 parts of polyethylene resin, 1 part of sodium dihydrogen phosphate, 1.5 parts of expanded vermiculite, palm 2 parts of ethyl acetate, 0.2 parts of anti-aging agent, and 0.2 parts of heat stabilizer.

[0016] Its preparation method comprises the following steps:

[0017] S1, adding the sodium dihydrogen phosphate and expanded vermiculite of the specific gravity into the grinder, and fully grind for 5 minutes to obtain the mixture A;

[0018] S2. Add the polyethylene resin with the specific gravity into the resin softening tank, heat at a high temperature of 160°C for 30 minutes, then raise the temperature to 200°C, add thermoplastic polyurethane, and mix and stir for 20 minutes to obtain a mixture B;

[0019] S3. Add the mixture A in step 1, the mixture B in st...

Embodiment 2

[0021] A thermoplastic elastomer halogen-free flame-retardant cable external-use material proposed by the present invention includes the following raw materials in parts by weight: 25 parts of thermoplastic polyurethane, 23 parts of polyethylene resin, 1.8 parts of sodium dihydrogen phosphate, 2.5 parts of expanded vermiculite, palm 2.6 parts of ethyl acetate, 0.27 parts of anti-aging agent, and 0.3 parts of heat stabilizer.

[0022] Its preparation method comprises the following steps:

[0023] S1, adding the sodium dihydrogen phosphate and expanded vermiculite of the specific gravity into a grinder, and fully grind for 10 minutes to obtain a mixture A;

[0024] S2. Add the polyethylene resin with the specific gravity into the resin softening tank, heat at a high temperature of 180°C for 45min, then raise the temperature to 230°C, add thermoplastic polyurethane, and mix and stir for 25min to obtain a mixture B;

[0025] S3. Add the mixture A in step 1, the mixture B in step ...

Embodiment 3

[0027] A thermoplastic elastomer halogen-free flame-retardant cable external material proposed by the present invention includes the following raw materials in parts by weight: 30 parts of thermoplastic polyurethane, 35 parts of polyethylene resin, 2.5 parts of sodium dihydrogen phosphate, 5 parts of expanded vermiculite, palm 3 parts of ethyl acetate, 0.3 parts of anti-aging agent, and 0.5 parts of heat stabilizer.

[0028] Its preparation method comprises the following steps:

[0029] S1, adding the sodium dihydrogen phosphate and expanded vermiculite of the specific gravity into the grinder, and fully grind for 15 minutes to obtain the mixture A;

[0030] S2. Add the polyethylene resin of the specific gravity into the resin softening tank, heat at a high temperature of 200°C for 60 minutes, then raise the temperature to 250°C, add thermoplastic polyurethane, and mix and stir for 30 minutes to obtain a mixture B;

[0031] S3. Add the mixture A in step 1, the mixture B in st...

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Abstract

The invention belongs to the technical field of cable materials for external use and particularly discloses a thermoplastic elastomer halogen-free flame retardant cable material for external use and apreparation method thereof. The problems are solved that due to mixing of a large number of inorganic flame retardants, the thermoplasticity and elasticity of filling materials in the prior art are weakened, the flexibility performance of the materials declines, and the service life is short. The thermoplastic elastomer halogen-free flame retardant cable material for external use is prepared from20-30 parts of thermoplastic polyurethane, 15-35 parts of polyethylene resin, 1-2.5 parts of sodium dihydrogen phosphate, 1.5-5 parts of expanded vermiculite, 2-3 parts of ethyl palmitate, 0.2-0.3 part of anti-aging agent and 0.2-0.5 part of heat stabilizer. The cable material has excellent thermoplasticity, elasticity, fire resistance, anti-aging performance and thermostability. Adopted raw materials are safe and environmentally friendly, a formula is scientific, the proportion is rigorous, the preparation method is simple, reaction conditions are mild, industrial production is easily achieved, and the thermoplastic elastomer halogen-free flame retardant cable material is worthy of popularization.

Description

technical field [0001] The invention relates to the technical field of external materials for cables, in particular to a thermoplastic elastomer halogen-free flame-retardant external material for cables and a preparation method thereof. Background technique [0002] With the rapid development of my country's social economy, the use of cables throughout the country has greatly increased. However, during use, it is very easy to catch fire due to excessive heat generation of the line and cause a fire. In order to reduce fire accidents caused by cable heating and burning, the use of flame-retardant cables is becoming more and more common. Traditional flame retardant cables are mainly halogen flame retardant. When a fire occurs, a large amount of smoke will be generated, and toxic, irritating and corrosive hydrogen halide gas will be produced. When burning, a large amount of toxic gas and smoke will be produced, which will seriously endanger people's life and property safety. S...

Claims

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Application Information

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IPC IPC(8): C08L75/04C08L23/06C08K13/04C08K7/26C08K3/32C08K5/101H01B3/30
CPCC08K2003/324C08L75/04C08L2201/02C08L2201/08C08L2201/22C08L2203/202H01B3/302C08L23/06C08K13/04C08K7/26C08K3/32C08K5/101
Inventor 夏森陈大龙黄耀操瑞谢荣婷
Owner ANHUI NIKOLA ELECTRONICS TECH CO LTD
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