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Halogen-free low-smoke flame-retardant cold resistant rubber sheath material and preparation method thereof

A low-smoke, flame-retardant, rubber sheath technology, which is applied to rubber insulators, plastic/resin/wax insulators, organic insulators, etc., can solve problems such as affecting escape and fire extinguishing, causing death, and losing flame-retardant properties, and achieves overcoming The effect of easy cracking at low temperature

Active Publication Date: 2015-09-16
BAOSHENG SCI & TECH INNOVATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In traditional wind energy cables, due to its excellent weather resistance, ozone resistance, chemical resistance and aging resistance, it has good oil resistance, flame retardancy and coloring performance, and good toughness (still flexible at -30°C), It has good compatibility with other polymer materials and high decomposition temperature. Chlorinated polyethylene is generally used as the sheath material of wind energy cables in China, and the shortcomings of this traditional cable sheath are also very obvious.
[0004] Due to the high chlorine content of chlorinated polyvinyl chloride, it will release high-concentration toxic fumes when burning, hindering sight, affecting escape and fire fighting, and even directly causing death. A large number of plasticizers lose their flame-retardant properties and even become flammable materials. The generation of toxic and harmful gases is even more serious. They have been eliminated in developed countries such as the United States and Japan.

Method used

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  • Halogen-free low-smoke flame-retardant cold resistant rubber sheath material and preparation method thereof
  • Halogen-free low-smoke flame-retardant cold resistant rubber sheath material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A halogen-free low-smoke flame-retardant low-temperature resistant rubber sheathing material is prepared from the following components by weight:

[0047] 60-80 parts of ethylene-vinyl acetate copolymer, 10-20 parts of ethylene acrylate rubber, 5-20 parts of EPDM rubber, 10-20 parts of superfine magnesium hydroxide, 80-100 parts of aluminum hydroxide, compound 10-20 parts of flame retardant, 5-10 parts of paraffin, 2-5 parts of lubricant, 1-2 parts of dispersant, 1-2 parts of anti-ultraviolet agent, 5-10 parts of cold-resistant plasticizer, 1-2 parts of coupling agent 2 parts, 3~5 parts of auxiliary plasticizer, 3~6 parts of vulcanizing agent, 1~2 parts of accelerator.

[0048] The vulcanizing agent is ethoxylated trimethylolpropane triacrylate (PL400-EO), the accelerator is trimethylolpropane trimethacrylate (XL-60), and the cold-resistant plasticizer is ether ester plasticizer Adipate bis(butoxyethoxyethyl) ester plasticizer, auxiliary plasticizer is linear alkyl pol...

Embodiment 2

[0060] A method for preparing a halogen-free, low-smoke, flame-retardant, and low-temperature resistant rubber sheath material, comprising the following steps:

[0061] (1) Take raw materials by weight proportioning:

[0062] 60-80 parts of ethylene-vinyl acetate copolymer, 10-20 parts of ethylene acrylate rubber, 10-20 parts of EPDM rubber, 10-20 parts of superfine magnesium hydroxide, 80-100 parts of aluminum hydroxide, compound 10-20 parts of flame retardant, 5-10 parts of paraffin, 2-5 parts of lubricant, 1-2 parts of dispersant, cold-resistant plasticizer (ether ester type plasticizer adipic acid bis(butoxyethoxy) B) ester) 5~10 parts, coupling agent 1~2 parts, ethoxylated trimethylolpropane triacrylate 3~5 parts, trimethylolpropane trimethacrylate 1~2 parts;

[0063] The melting point of the lubricant is 50°C, and it is one or more of polyethylene wax, zinc stearate, and stearic acid; the vinyl acetate of the ethylene-vinyl acetate copolymer accounts for the total weigh...

Embodiment 3

[0070] Three groups of formulas in table 1 are made according to the following steps respectively after being prepared by weight:

[0071] (1) Add ethylene-vinyl acetate copolymer, EPDM rubber, ethylene acrylate rubber, paraffin wax, lubricant, dispersant, and accelerator to the internal mixer in the auxiliary machine and mix for 1 to 3 minutes to obtain Mixture A, lubricant is zinc stearate, stearic acid mixture;

[0072] (2) Then add magnesium hydroxide, aluminum hydroxide, composite flame retardant, coupling agent, and cold-resistant plasticizer to the internal mixer in the lower auxiliary machine for 1-3 minutes of mixing, and the temperature in the internal mixer is controlled at 70- 90°C, 30 seconds before the end of mixing, add vulcanizing agent into the internal mixer to obtain mixture B;

[0073] (3) Mixture A and B obtained by steps (1) and (2) are unloaded to the open mill after mixing;

[0074] (5) Mixtures A and B are put into triangular bags for 3 to 4 times on...

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Abstract

The invention discloses a halogen-free low-smoke flame-retardant cold resistant rubber sheath material and a preparation method thereof, belonging to the technical field of cables. The halogen-free low-smoke flame-retardant cold resistant rubber sheath material comprises the following components: an ethylene-vinyl acetate copolymer, ethylene-acrylic ester rubber, an ethylene-propylene-diene monomer, superfine magnesium hydroxide, aluminum hydroxide, a composite flame retardant, paraffin, a lubricant, a dispersing agent, a cold resistant plasticizer, a coupling agent, a vulcanizing agent and an accelerant. The sheath material disclosed by the invention has the characteristics of good flexibility, cold resistance, environmental protection, no halogen, low toxicity, flame retardance, low smoke emission in combustion, no or little generation of corrosive gases and halogen-containing gases, no heavy metals such as lead, no soil pollution, high temperature resistance, recycling of waste wire materials, and the like.

Description

technical field [0001] The invention relates to a halogen-free, low-smoke, flame-retardant, low-temperature resistant rubber sheath material and a preparation method thereof, belonging to the technical field of electric cables. Background technique [0002] The wind power industry is developing in full swing, giving rise to the demand for cables for wind power generation. Due to the harsh environment of wind power generation, the service life of the wind turbines is long, and the cables are constantly rotating with the wind turbines, the performance requirements for the cables are also very high. In the past, they relied on imports and were expensive. [0003] In recent years, a number of domestic cable manufacturers have carried out research and development, and have produced wind power cables with low temperature resistance, UV resistance, oil resistance, and torsion resistance, which have become a new economic growth point for enterprises. In recent years, all walks of l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/16C08L91/06C08K13/06C08K9/04C08K9/02C08K3/22C08K5/11C08K5/103H01B3/44H01B3/28
CPCC08K2201/014C08L23/0853C08L2201/02C08L2201/08C08L2201/22C08L2203/202C08L2205/02C08L2205/035H01B3/28H01B3/44C08L23/0869C08L23/16C08L91/06C08K13/06C08K9/04C08K9/02C08K2003/2224C08K2003/2227C08K5/103C08K5/11
Inventor 房权生甘胤嗣何玉明李茁实杨飞王永徐云海
Owner BAOSHENG SCI & TECH INNOVATION
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