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Antimony-free flame-retardant polyvinyl chloride cable material and preparation method thereof

A technology of flame-retardant polyvinyl chloride and polyvinyl chloride, applied in the field of antimony-free flame-retardant polyvinyl chloride cable material and its preparation, to achieve the effects of reducing production costs, improving production efficiency, and improving flame-retardant performance

Inactive Publication Date: 2014-08-27
ASAP TECH (JIANGXI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] PVC cable material is one of the main raw materials in wire and cable products. The current PVC cable material mainly adopts the traditional flame retardant method, that is, the purpose of flame retardant is achieved by adding antimony trioxide as a flame retardant, and antimony The compound itself has certain toxicity, and it coexists with highly toxic arsenic in nature. Therefore, many large companies have begun to restrict the content of antimony in their products, such as ASUS, Canon, Lenovo and other international large companies have begun to require that their products contain no antimony. Contains antimony; At the same time, the country has included antimony in the policy of restricting resource exploitation in 2009.

Method used

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Examples

Experimental program
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preparation example Construction

[0019] The invention provides a preparation method of antimony-free flame-retardant polyvinyl chloride cable material, which comprises the following steps:

[0020] a. take various raw materials by weighing one of them weight ratio in embodiment 1-4;

[0021] b. Put the prepared mixture into a 300L high-mixing pot, mix it in a high-speed mixer for 10-15 minutes, and set the temperature for high-speed mixing at 130-150 o C;

[0022] c. Discharge the mixed raw materials into a 75L internal mixer for internal mixing and plasticization, and the internal mixing temperature is 145-160 o C;

[0023] d. Send the mixed rubber material to the double-cone machine through the elevator, and then feed it into a single screw with a diameter of 180mm for extrusion, hot-cut granulation, air cooling, vibration screening and packaging. The single-screw extrusion temperature is 145 -165 o c.

[0024] For the convenience of further understanding of the present invention, now in conjunction wi...

Embodiment 1

[0026] Embodiment 1: 100 parts by weight of polyvinyl chloride, 30 parts by weight of plasticizer, 15 parts by weight of calcium carbonate, 15 parts by weight of flame retardant, 6 parts by weight of stabilizer, and 0.5 parts by weight of lubricant are mixed at high speed in a high mixer 15 minutes, high mix setting temperature is 150 o C, discharge to 75L internal mixer internal mixing plasticization, internal mixing temperature 160 o C, then extrude and granulate with a single screw with a diameter of 180mm, and the processing temperature of the single screw is 155-165 o C;

Embodiment 2

[0027] Embodiment 2: 100 parts by weight of polyvinyl chloride, 45 parts by weight of plasticizer, 30 parts by weight of calcium carbonate, 24 parts by weight of flame retardant, 5 parts by weight of stabilizer, and 2 parts by weight of lubricant are mixed at high speed in a high mixer 15 minutes, high mix setting temperature is 145 o C, discharge the material to 75L internal mixer for internal mixing and plasticization, and the internal mixing temperature is 155 o C, and then extrude and granulate with a single screw with a diameter of 180mm, and the processing temperature of the single screw is 150-160 o C;

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PUM

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Abstract

The invention discloses an antimony-free flame-retardant polyvinyl chloride cable material and a preparation method thereof. The cable material contains polyvinyl chloride, calcium carbonate, a flame retardant agent, a plasticizer, a stabilizer, a lubricant and the like; the raw materials are subjected to mixed granulation in a proper weight ratio, and the preparation method comprises the following preparation flow: firstly, carrying out high-speed mixing of the raw materials for 10-15 minutes in a high-speed mixer, then carrying out internal mixing plasticizing in an internal mixer, carrying out single-screw extrusion, carrying out hot grain-sized dicing, carrying out vibration screening, carrying out windy cooling, and packaging. The cable material prepared by the formula and the method has the efficiencies of convenient manufacturing, stable quality, high production efficiency and the like.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to an antimony-free flame-retardant polyvinyl chloride cable material and a preparation method thereof. Background technique [0002] With the increasingly stringent fire safety standards at home and abroad, the requirements for flame retardancy in plastics and rubber applications are also getting higher and higher. Wire and cable products work in a high-voltage heating environment for a long time, and the flame retardancy of wire and cable products Performance requirements are more stringent. [0003] PVC cable material is one of the main raw materials in wire and cable products. The current PVC cable material mainly adopts the traditional flame retardant method, that is, the purpose of flame retardant is achieved by adding antimony trioxide as a flame retardant, and antimony The compound itself has certain toxicity, and it coexists with highly toxic arsenic in nature. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K13/02C08K3/26C08K5/12C08K5/1515C08K3/22C08K3/32
Inventor 田建军肖崇
Owner ASAP TECH (JIANGXI) CO LTD
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