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

A fuel-resistant and cold-resistant technology, used in plastic/resin/wax insulators, organic insulators, electrical components, etc., can solve the problem of insufficient cold-resistant performance of signal cables, improve mechanical properties and flame-retardant performance, simple steps, environmental protection low pollution effect

Inactive Publication Date: 2019-01-04
SUZHOU HENGLI COMM MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to provide a cold-resistant low-smoke halogen-free flame-retardant material and its preparation method and application, which are used to solve the technical problem of insufficient cold-resistant performance of signal cables in severe cold environments in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The cold-resistant low-smoke halogen-free flame-retardant material of this embodiment includes the following components by weight:

[0030] 20 parts of POE resin, 5 parts of POP resin, 10 parts of metallocene-catalyzed linear low-density polyethylene, 7 parts of maleic anhydride grafted POE, 0.5 parts of antioxidant, 40 parts of aluminum hydroxide, 8 parts of char-forming agent, silicone barrier Fuel agent 10 parts.

[0031] Among them, the POP resin adopts Dow 1900 model, its tensile strength is 70Mpa, and its elongation at break is 700%; the comonomer of POE resin is octene, which is purchased from Japan Mitsui Chemicals TAFMER TM A-20090 model, its tensile strength is 40Mpa, and its elongation at break is 850%. Aluminum hydroxide is a chemically synthesized superfine powder.

[0032] The preparation method of the cold-resistant low-smoke halogen-free flame retardant fuel of the present embodiment comprises the following steps:

[0033] S1: Weigh POE resin, POP res...

Embodiment 2

[0037] The cold-resistant low-smoke halogen-free flame-retardant material of this embodiment includes the following components by weight:

[0038] 23 parts of POE resin, 4 parts of POP resin, 7 parts of metallocene catalyzed linear low density polyethylene, 6 parts of maleic anhydride grafted POE, 0.4 parts of antioxidant, 35 parts of aluminum hydroxide, 6 parts of carbon forming agent, organic silicon barrier Fuel 8 parts. Wherein, the performance and model of POE resin, POP resin and aluminum hydroxide are the same as in Example 1.

[0039] The preparation method of the cold-resistant, low-smoke, halogen-free flame-retardant fuel in this embodiment is the same as that in Embodiment 1, and will not be repeated here.

Embodiment 3

[0041] The cold-resistant low-smoke halogen-free flame-retardant material of this embodiment includes the following components in parts by weight: 25 parts of POE resin, 3 parts of POP resin, 5 parts of metallocene-catalyzed linear low-density polyethylene, 5 parts of maleic anhydride grafted POE parts, 0.3 parts of antioxidant, 30 parts of aluminum hydroxide, 5 parts of char-forming agent, and 5 parts of organosilicon flame retardant.

[0042] Wherein, the performance and model of POE resin, POP resin and aluminum hydroxide are the same as in Example 1.

[0043] The preparation method of the cold-resistant, low-smoke, halogen-free flame-retardant fuel in this embodiment is the same as that in Embodiment 1, and will not be repeated here.

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Abstract

The invention provides a cold-resistant, low-smoke and halogen-free flame retardant material. The material is prepared from, by weight, 20-25 parts of POE resin, 3-5 parts of POP resin, 5-10 parts ofmetallocene-catalyzed linear low-density polyethylene, 5-7 parts of maleic anhydride grafted POE, 0.3-0.5 part of antioxidant, 30-40 parts of aluminum hydroxide, 5-8 parts of carbon forming agent and5-10 parts of organosilicone flame retardant. The invention further provides a preparation method of the cold-resistant, low-smoke and halogen-free flame retardant material. The method comprises the following steps of S1, separately weighing all the raw materials according to the weight values of the formula respectively, and adding the raw materials into a high mixing machine for mixing and plasticizing; S2, transferring the mixture into a twin-screw granulation machine for extrusion processing, and conveying the mixture to a single-screw extrusion granulation machine for extrusion granulation; S3, conducting air-cooled conveying and packaging. Cables made of the cold-resistant, low-smoke and halogen-free flame retardant material can be used in a freezing environment and have the characteristics of cold resistance, pressure resistance, corrosion resistance, tensile strength and the like, and meanwhile the mechanical properties and flame retardant properties of the products can be improved.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a cold-resistant low-smoke halogen-free flame-retardant material and a preparation method and application thereof. Background technique [0002] With the development of rail transit railway construction at home and abroad, the demand for its supporting products rail transit signal cables continues to increase. Due to the differences in the laying environment conditions, the product must meet the requirements of different regional environments. At present, the cold resistance level of ordinary signal cable products at home and abroad can only reach -20°C. Therefore, the ambient temperature in some severe cold regions such as Kazakhstan and Russia reaches -55°C. Ordinary signal cables cannot meet the laying and use under this environmental condition. Various manufacturers at home and abroad have invested in the research and development of products that meet this condition. The dev...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L51/06C08L23/00C08K3/22H01B3/44
CPCC08K2003/2227C08L23/0815C08L2201/02C08L2201/08C08L2201/10C08L2201/22C08L2203/202C08L2205/025C08L2205/035H01B3/441C08L51/06C08L23/00C08K3/22
Inventor 王传威徐文强孙玉萍计瑶佳
Owner SUZHOU HENGLI COMM MATERIAL
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