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Cold-resistant low-smoke halogen-free flame-retardant cable material and preparation method thereof

A flame retardant cable, inorganic flame retardant technology, applied in circuits, electrical components, plastic/resin/wax insulators, etc., can solve problems such as unsatisfactory low temperature resistance, no experimental data or instructions, and long-term use. Achieve the effect of improving low temperature resistance, excellent flame retardant and other properties, and excellent processing performance

Active Publication Date: 2020-12-04
和昌电业(肇庆)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The flame retardant performance of the cable material is excellent, but the low temperature resistance is not ideal, and it cannot be used for a long time at a temperature of -40°C
[0005] Chinese patent application CN 103524868A discloses a low-temperature oil-resistant low-smoke halogen-free flame-retardant polyolefin cable material, including metallocene linear low-density polyethylene, POE, maleic anhydride grafted polyethylene, low-temperature resistant silicone rubber, N, N Components such as '-m-phenylene bismaleimide and aluminum hydroxide have good oil resistance, and can also pass the low-temperature embrittlement impact test at -30°C, but can they pass the low temperature of -40°C or even lower? Embrittlement impact test, unknown, no experimental data or description provided in the literature

Method used

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  • Cold-resistant low-smoke halogen-free flame-retardant cable material and preparation method thereof
  • Cold-resistant low-smoke halogen-free flame-retardant cable material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Example 1 Low-smoke halogen-free flame-retardant cable material with low temperature resistance

[0027] Low-temperature-resistant low-smoke halogen-free flame-retardant cable material, including the following components and their weight percentages: ethylene-vinyl acetate copolymer 20.2%, polyethylene 2.5%, POE 3.6%, polyvinylidene fluoride 1.8%, compatibilizer 6.5% %, inorganic flame retardant 62%, metal oxide 1.6%, modifier 0.3%, silicone powder 1.2%, ethylene bisstearamide 0.2% and antioxidant 0.1%; compatibilizer is POE maleic anhydride graft; the inorganic flame retardant is magnesium hydroxide; the metal oxide consists of zinc oxide and magnesium oxide in a weight ratio of 5:3; the modifier consists of trimethylolpropane trimethacrylate and bismaleyl The imine-modified epoxy resin is composed at a weight ratio of 4:3; the antioxidant is 4,4'-thiobis(6-tert-butyl-3-methylphenol).

[0028] A preparation method for a low-temperature-resistant low-smoke halogen-free...

Embodiment 2

[0030] Example 2 Low-smoke halogen-free flame-retardant cable material with low temperature resistance

[0031] Low-temperature-resistant low-smoke halogen-free flame-retardant cable material, including the following components and their weight percentages: ethylene-vinyl acetate copolymer 22%, polyethylene 2.1%, POE 3.0%, polyvinylidene fluoride 1.5%, compatibilizer 6.2% %, inorganic flame retardant 61.5%, metal oxide 2%, modifier 0.5%, silicone powder 0.6%, ethylene bisstearamide 0.5% and antioxidant 0.1%; compatibilizer is POE maleic anhydride graft; the inorganic flame retardant is magnesium hydroxide; the metal oxide consists of zinc oxide and magnesium oxide in a weight ratio of 5:3; the modifier consists of trimethylolpropane trimethacrylate and bismaleyl The imine-modified epoxy resin is composed at a weight ratio of 3:2; the antioxidant is 4,4'-thiobis(6-tert-butyl-3-methylphenol).

[0032] The preparation method of the low-temperature-resistant low-smoke halogen-fre...

Embodiment 3

[0033] Example 3 Low-smoke halogen-free flame-retardant cable material with low temperature resistance

[0034]Low-temperature-resistant low-smoke halogen-free flame-retardant cable material, including the following components and their weight percentages: ethylene-vinyl acetate copolymer 19.8%, polyethylene 3%, POE 4.2%, polyvinylidene fluoride 2.1%, compatibilizer 4.8% %, inorganic flame retardant 61%, metal oxide 2.4%, modifier 0.8%, silicone powder 1.0%, ethylene bis stearamide 0.8% and antioxidant 0.1%; compatibilizer is POE maleic anhydride graft; the inorganic flame retardant is magnesium hydroxide; the metal oxide consists of zinc oxide and magnesium oxide in a weight ratio of 5:3; the modifier consists of trimethylolpropane trimethacrylate and bismaleyl The imine-modified epoxy resin is composed at a weight ratio of 4:3; the antioxidant is 4,4'-thiobis(6-tert-butyl-3-methylphenol).

[0035] The preparation method of the low-temperature-resistant low-smoke halogen-fre...

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Abstract

The invention provides a frigostable low-smoke halogen-free flame-retardant cable material. The frigostable low-smoke halogen-free flame-retardant cable material is prepared from, in percent by weight, 18.5-23.5% of ethylene-vinyl acetate copolymer, 2.0-5.2% of polyethylene, 3-5% of POE, 1-3% of polyvinylidene fluoride, 3.0-9.6% of a compatibilizer, 58-65% of inorganic flame retardant, 0.8-3.5% ofmetal oxides, 0.2-1.5% of a modifier, 0.2-1.5% of silicone powder, 0.1-2.5% of ethylene bis stearamide and 0.05-0.2% of an antioxidant. The invention belongs to the technical field of cable materials; through the frigostable low-smoke halogen-free flame-retardant cable material, the low-temperature resistance performance of the cable material can be improved significantly, the flexibility of thematerial is enhanced, and meanwhile excellent flame-retardant performance and other performance can be maintained; therefore, the frigostable low-smoke halogen-free flame-retardant cable material is applicable to cold climate.

Description

technical field [0001] The invention belongs to the technical field of cable materials, and in particular relates to a cold-resistant low-smoke halogen-free flame-retardant cable material and a preparation method thereof. Background technique [0002] my country is the largest producer of wire and cable. The wire and cable industry occupies a very important position in my country's national economy and has an important impact on daily life. For the wires and cables specially used for the transmission of electric energy and communication signals, it is not only required to prevent the spread of flames, but also to maintain the cable to continue to transmit electric energy and communication signals, and it should also have low smoke generation and low gas corrosiveness when burning. , which is conducive to the safe evacuation of the staff from the scene. Therefore, properties such as halogen-free, low-smoke, and flame-retardant have become important indicators for the evaluat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08L23/06C08L27/16C08L83/04C08L51/06C08L63/00C08K13/02C08K3/22C08K5/103H01B3/44
CPCC08K2003/222C08K2003/2224C08K2003/2296C08L23/0853C08L2201/02C08L2201/22C08L2203/202C08L2205/035H01B3/441C08L23/06C08L23/0815C08L27/16C08L83/04C08L51/06C08L63/00C08K13/02C08K3/22C08K5/103
Inventor 熊建斌罗军民李欣珍杨成武王亚新
Owner 和昌电业(肇庆)有限公司