Low-smoke halogen-free polyolefin cable material and preparation method thereof

A polyolefin cable material, metallocene polyethylene technology, used in circuits, electrical components, plastic/resin/wax insulators and other directions, can solve the problems of large smoke volume and high smoke toxicity, and achieve low and high smoke toxicity The light transmittance is small and the amount of flue gas is small, and the effect of reducing the heat of combustion

Pending Publication Date: 2020-08-21
中广核高新核材科技(苏州)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the traditional low-smoke halogen-free polyolefin cable material is burned, it produces a large amount of smoke and high smoke toxicity. There is an urgent need for a low-smoke halogen-free polyolefin cable with a small smoke amount and low smoke toxicity during combustion. material

Method used

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  • Low-smoke halogen-free polyolefin cable material and preparation method thereof
  • Low-smoke halogen-free polyolefin cable material and preparation method thereof

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[0039] The present invention also provides a method for preparing a low-smoke halogen-free polyolefin cable material, which includes the following steps: mixing the formulation components described in any one of the present invention, banburying, extruding and granulating, and drying to obtain Low-smoke halogen-free polyolefin cable compound.

[0040] In one of the examples, all the components measured by weight in the above formula are mixed evenly and banburyed to 150°C, and then granulated by twin-screw extrusion at a melt extrusion temperature of 120-150°C. After drying, the high Low light transmittance low toxicity low smoke halogen free polyolefin cable compound.

Embodiment 1-4

[0043] The formulation composition of the low-smoke halogen-free polyolefin cable material in Examples 1-4 of the present invention is shown in Table 1, and the consumption of each component in the table is in parts by weight.

[0044] Table 1 The formula composition of different low-smoke halogen-free polyolefin cable materials

[0045]

[0046] Raw material performance in the present invention:

[0047] The melt index of polyethylene butyl acrylate is 4g / 10min;

[0048] The melt index of metallocene polyethylene is 5g / 10min;

[0049] Ethylene and octene copolymer melt index 1g / 10min;

[0050] The graft rate of maleic anhydride grafted polyethylene is 0.8%;

[0051] The antioxidant is tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester;

[0052] After compounding aluminum hydroxide and magnesium hydroxide, the particle size is 0.8μm;

[0053] The relative molecular mass of methyl vinyl silicone rubber is 1.2 million;

[0054] Nano zirconi...

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Abstract

The invention discloses a low-smoke halogen-free polyolefin cable material and a preparation method thereof. A formula for the low-smoke halogen-free polyolefin cable material comprises the followingcomponents in parts by weight: 40 to 65 parts of polyethylene butyl acrylate, 8 to 15 parts of maleic anhydride grafted polyethylene, 160 to 200 parts of a flame retardant, 8 to 10 parts of silicone rubber, 5 to 10 parts of nanometer zirconium dioxide, 5 to 15 parts of zinc borate, 2 to 5 parts of silicone master batch, 2 to 5 parts of a silane coupling agent, 1 to 3 parts of 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, 10 to 20 parts of metallocene polyethylene, 5 to 15 parts of an ethylene-octene copolymer and 1 to 3 parts of an oxidant. The low-smoke halogen-free polyolefin cable material has the advantages of high light transmittance, small smoke amount and low smoke toxicity.

Description

technical field [0001] The invention relates to the technical field of cable materials, in particular to a low-smoke halogen-free polyolefin cable material and a preparation method thereof. Background technique [0002] With the vigorous development of my country's cable industry, exporting cables has become an important development strategy for domestic cable companies to go abroad. How to meet the standards of foreign cables, especially the standards of developed countries in Europe and the United States, is the first step for domestic cables to go global. After July 1, 2017, the EU building regulations require all electricity, communication, and control cables exported to the EU to meet the requirements of the EU's construction product regulations. Performance indicators, and the fire resistance of cables are divided into seven grades. With the deepening of theoretical research on combustion around the world and the wide application of physical fire simulation tests, Chi...

Claims

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Application Information

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IPC IPC(8): C08L23/26C08L23/06C08L51/06C08L83/04C08L23/08C08K13/02C08K3/22C08K3/38C08K5/5313C08K5/5425H01B3/44
CPCC08L23/26H01B3/441C08K2201/011C08K2003/2244C08K2003/387C08K2003/2227C08K2003/2224C08L2201/02C08L2201/22C08L2205/035C08L2205/02C08L2205/025C08L2203/202C08L2201/10
Inventor 张露费楚然
Owner 中广核高新核材科技(苏州)有限公司
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