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Environment-friendly flame-retardant polyvinyl chloride cable insulating material and preparation method thereof

A technology for flame-retardant polyvinyl chloride and cable insulation, which is applied in the direction of organic insulators, plastic/resin/wax insulators, etc., and can solve problems such as toxic and corrosive fumes, fire fighting, and loss of people's lives and property

Inactive Publication Date: 2012-09-19
江苏凯诺电缆集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, due to the burning of cables, a large amount of toxic and corrosive smoke will be released. Once a fire occurs, it will cause huge losses to fire fighting and people's lives and properties.

Method used

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  • Environment-friendly flame-retardant polyvinyl chloride cable insulating material and preparation method thereof
  • Environment-friendly flame-retardant polyvinyl chloride cable insulating material and preparation method thereof
  • Environment-friendly flame-retardant polyvinyl chloride cable insulating material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] First put (the following are parts by weight) 100 parts of polyvinyl chloride and 6 parts of stabilizer into a high-speed mixer for high-speed mixing. When the temperature rises to 60°C, add 40 parts of plasticizer UN488, 6 parts of long-chain chlorine Chemical paraffin and 4 parts of epoxidized soybean oil, when the temperature reaches 80°C, add 5 parts of antimony trioxide, 8 parts of hydrated zinc borate, and 12 parts of activated aluminum hydroxide, when the temperature reaches 90°C, add 10 parts of calcined Kaolin, 15 parts of heavy calcium carbonate and 20 parts of nano calcium carbonate, when the temperature reaches 100 ° C, add 0.6 parts of stearic acid and 0.6 parts of butyl stearate, when the temperature reaches 110 ° C, stop high-speed mixing. Unload the material into the low-speed mixer for low-speed mixing and cooling, unload the cooled material into the hopper elevator, add it to the twin-screw extruder for mixing, extrude, granulate and pack.

Embodiment 2

[0024] First put (the following are parts by weight) 100 parts of polyvinyl chloride and 5 parts of stabilizer into a high-speed mixer for high-speed mixing. When the temperature rises to 60°C, add 35 parts of plasticizer UN488, 4 parts of long-chain chlorine Chemical paraffin and 3 parts of epoxidized soybean oil, when the temperature reaches 80°C, add 6 parts of antimony trioxide, 10 parts of hydrated zinc borate and 14 parts of activated aluminum hydroxide, when the temperature reaches 90°C, add 15 parts of calcined kaolin 10 parts of heavy calcium carbonate and 25 parts of nano-calcium carbonate, when the temperature reaches 100 ° C, add 0.5 parts of stearic acid and 0.5 parts of butyl stearate, when the temperature reaches 110 ° C, stop high-speed mixing. Unload the material into the low-speed mixer for low-speed mixing and cooling, unload the cooled material into the hopper elevator, add it to the twin-screw extruder for mixing, extrude, granulate and pack.

Embodiment 3

[0026] First put (the following are parts by weight) 100 parts of polyvinyl chloride and 7 parts of stabilizer into a high-speed mixer for high-speed mixing. When the temperature rises to 60 ° C, add 45 parts of plasticizer UN488, 10 parts of long-chain chlorine Chemical paraffin and 5 parts of epoxidized soybean oil, when the temperature reaches 80°C, add 4 parts of antimony trioxide, 6 parts of hydrated zinc borate and 10 parts of activated aluminum hydroxide, when the temperature reaches 90°C, add 20 parts of calcined kaolin 10 parts of heavy calcium carbonate and 20 parts of nano calcium carbonate, when the temperature reaches 100 ° C, add 0.7 parts of stearic acid and 0.7 parts of butyl stearate, when the temperature reaches 110 ° C, stop high-speed mixing. Unload the material into the low-speed mixer for low-speed mixing and cooling, unload the cooled material into the hopper elevator, add it to the twin-screw extruder for mixing, extrude, granulate and pack.

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Abstract

The invention discloses an environment-friendly flame-retardant polyvinyl chloride cable insulating material and a preparation method thereof. The cable insulating material comprises the following components in parts by weight: 100 parts of polyvinyl chloride, 35-40 parts of a plasticizing agent, 5-8 parts of a stabilizing agent, 6-10 parts of long-chain chlorinated paraffin, 3-5 parts of epoxy soybean oil, 4-8 parts of antimonous oxide, 10-15 parts of active aluminum hydroxide, 5-10 parts of hydrated zinc borate, 1-1.4 parts of a lubricating agent, 10-20 parts of calcined kaolin and 30-45 parts of a filler, wherein the filler is a composition of active ground limestone and nano calcium carbonate; and the lubricating agent is a composition of stearic acid and butyl stearate. The oxygen index of the insulating material can be over 33, and is accordant with RoSH and REACH regulations. The preparation method of the insulating material comprises the following steps of: mixing raw materials in a high-speed mixing machine; and extruding and pelletizing with a dual-step screw extruder.

Description

technical field [0001] The invention relates to a cable insulation material and a preparation method thereof, in particular to an environment-friendly flame-retardant polyvinyl chloride cable insulation material and a preparation method thereof in compliance with environmental protection RoHS regulations and REACH regulations. Background technique [0002] PVC cable material is cheap and has excellent mechanical properties, and occupies an important position in the wire and cable industry. However, ordinary cable materials contain harmful substances such as heavy metal elements, which are harmful to the environment and human body. Therefore, it has become an important factor restricting its application in electrical equipment, infrastructure and other occasions. At present, it is the general trend to replace ordinary PVC cable materials with environment-friendly PVC. Simultaneously because the burning of cable can emit a large amount of poisonous, corrosive smog, once catc...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08K13/02C08K5/1515C08K3/22C08K3/38C08K3/34C08K3/26H01B3/44
Inventor 赵俊恒薛家喜王卫东
Owner 江苏凯诺电缆集团有限公司
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