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

A technology of flame retardant PVC and cable sheathing materials, applied in the direction of insulated cables, cables, circuits, etc., can solve problems such as toxic and corrosive smoke, fire fighting and loss of people's lives and properties

Inactive Publication Date: 2012-08-15
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 sheath material and preparation method thereof
  • Environment-friendly flame-retardant polyvinyl chloride cable sheath material and preparation method thereof
  • Environment-friendly flame-retardant polyvinyl chloride cable sheath 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 Paraffin wax and 4 parts of epoxidized soybean oil, when the temperature reaches 80°C, add 5 parts of antimony trioxide, 8 parts of zinc borate hydrate and 12 parts of active aluminum hydroxide, when the temperature reaches 90°C, add 20 parts of active weight High quality calcium carbonate and 20 parts of nano calcium carbonate, when the temperature reaches 100°C, add 0.6 part of stearic acid and 0.6 part 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 Paraffin wax and 3 parts of epoxy soybean oil, when the temperature reaches 80 ℃, add 6 parts of antimony trioxide, 10 parts of hydrated zinc borate and 14 parts of active aluminum hydroxide, when the temperature reaches 90 ℃, add 15 parts of active weight High quality calcium carbonate and 25 parts of nano calcium carbonate, when the temperature reaches 100°C, add 0.5 part of stearic acid and 0.5 part 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 Paraffin wax and 5 parts of epoxidized soybean oil, when the temperature reaches 80°C, add 4 parts of antimony trioxide, 6 parts of zinc borate hydrate and 10 parts of active aluminum hydroxide, when the temperature reaches 90°C, add 25 parts of active weight High-quality calcium carbonate and 30 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 provides environment-friendly flame-retardant polyvinyl chloride cable sheath material and a preparation method thereof. The environment-friendly flame-retardant polyvinyl chloride cable sheath material comprises the following components: by weight, 100 parts of polyvinyl chloride, 35-40 parts of plasticizer, 5-8 parts of stabilizer, 6-10 parts of long-chain chlorinated paraffin, 3-5 parts of epoxidized soybean oil, 4-8 parts of antimony trioxide, 10-15 parts of active aluminum hydroxide, 5-10 parts of hydrated zinc borate, 1-1.4 parts of lubricant and 40-55 parts of filler, wherein the filler is composition of active heavy-weight calcium carbonate and nano calcium carbonate, and the lubricant is composition of stearic acid and butyl stearate. Oxygen index of the cable sheath material can reach 33 or above, and accords with RoSH and REACH regulations. The preparation method of the cable sheath material includes mixing the components in a high-speed mixer and then extruding and pelleting in a double-step screw extruder.

Description

technical field [0001] The invention relates to a cable sheathing material and a preparation method thereof, in particular to an environment-friendly flame-retardant polyvinyl chloride cable sheathing material complying with environmental protection RoHS regulations and REACH regulations and a preparation method thereof. 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 catch a fi...

Claims

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Application Information

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IPC IPC(8): C08L27/06H01B3/44H01B7/295C08K13/02C08K5/1515C08K3/22C08K3/38
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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