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Low-density flame-retardant polyethylene cable material

A flame retardant polyethylene and cable material technology, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of secondary pollution and large quantities, and achieve the effects of less environmental pollution, good heat resistance, and excellent flame retardant performance.

Inactive Publication Date: 2013-10-30
鲍联
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to avoid the frequent occurrence of fires caused by cables, countries all over the world are competing to develop flame-retardant wire and cable products. For this reason, people have developed halogen-type flame retardants. The occurrence of fires has made wires and cables based on PVC and other materials popular among users. However, with the enhancement of people's awareness of environmental protection, it has been found that halogen-containing systems will produce a large amount of black smoke and acid mist during combustion, causing secondary pollution. Secondary pollution, the smoke is enough to suffocate people to death, so how to design halogen-free flame-retardant wire and cable products that meet low smoke, low toxicity, and low corrosion has become a top priority for the whole society

Method used

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Embodiment Construction

[0013] Implementation column

[0014] A low-density flame-retardant polyethylene cable material, the raw material formula of which is as follows by weight:

[0015] 22 parts of polyethylene, 72 parts of modified magnesium hydroxide, 0.6 parts of antioxidant, and 1.2 parts of lubricant.

[0016] Preparation:

[0017] According to the weight of 50 kg, put the polyethylene into the high-speed mixer, then put in the magnesium hydroxide flame retardant, then put in the oxidant and lubricant, stir at a low speed for 3 minutes at room temperature, until the raw materials are mixed evenly, and then mix the mixture It is lowered to the twin-screw feeding tank and granulated by the twin-screw. The temperature of the heating section of the twin-screw feeding tank is 110 degrees, the temperature of the conveying section is 125 degrees, the temperature of the melting section is 135 degrees, and the temperature of the machine head is 140 degrees. Cut, then dry, the drying temperature is 7...

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Abstract

The invention relates to a low-density flame-retardant polyethylene cable material. The low-density flame-retardant polyethylene cable material is characterized by being prepared from the following ingredients in parts by weight: 20-25 parts of polyethylene, 70-75 parts of modified magnesium hydroxide, 0.5-1 part of antioxidant and 1-1.5 parts of lubricant. According to the low-density flame-retardant polyethylene cable material, the modified magnesium hydroxide is selected as a flame retardant; and after the modified magnesium hydroxide is added, the material can have excellent flame retardance, the material can be effectively prevented from being subjected to a lowering phenomenon during burning, and fire can not be spread even if electric wire cables are in a bunched laying state.

Description

technical field [0001] The invention relates to a cable material with improved flame-retardant performance, in particular to a low-density flame-retardant polyethylene cable material. Background technique [0002] With the rapid development of the national economy, wires and cables have been widely used in various industries of the national economy, and they are also the source of fire. In order to avoid the frequent occurrence of fires caused by cables, countries all over the world are competing to develop flame-retardant wire and cable products. For this reason, people have developed halogen-type flame retardants. The occurrence of fires has made wires and cables based on PVC and other materials popular among users. However, with the enhancement of people's awareness of environmental protection, it has been found that halogen-containing systems will produce a large amount of black smoke and acid mist during combustion, causing secondary pollution. Secondary pollution, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L83/04C08K9/00C08K3/22C08K5/526C08K5/375C08K5/098H01B7/295
Inventor 鲍联
Owner 鲍联
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