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Low temperature-resistant PVC (Polyvinyl Chloride) cable material

A cable material, low temperature resistance technology, applied in plastic/resin/wax insulators, organic insulators, etc., can solve the problems of inability to quantitatively determine the low temperature resistance limit, insufficient low temperature resistance performance, complex formula components, etc., and achieve the viscosity temperature coefficient. Small, low surface tension, the effect of improving mechanical properties

Inactive Publication Date: 2018-10-26
ZHEJIANG WELLSCOM PLASTIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to overcome the defects of insufficient low-temperature resistance of PVC cable materials in the prior art, the inability to quantitatively determine the low-temperature resistance limit, complex formula components and high costs, and provides an effective way to improve the low-temperature resistance of PVC cable materials with simple formula , a kind of low-temperature resistant PVC cable material with low cost and simple process steps

Method used

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  • Low temperature-resistant PVC (Polyvinyl Chloride) cable material
  • Low temperature-resistant PVC (Polyvinyl Chloride) cable material

Examples

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Effect test

Embodiment 1

[0039] A low-temperature-resistant PVC cable material, said cable material comprising the following components in parts by weight:

[0040] The PVC resin is 100 parts of a mixture of three different PVC resins with a polymerization degree of 1800-1650, 1650-1500 and 1500-1350 in a mass ratio of 3:5:2; the phenyl content is 350%, and the number-average mole 20 parts of silicone resin with a mass of 1500g / mol; viscosity of 1000mm 2 30 parts of simethicone oil per s; 15 parts of hydrophobic superfine precipitated white carbon black with a particle size of 500nm; 20 parts of nano-calcium carbonate; 3 parts of acid-binding ammonium polyphosphate; 1 part of lubricant magnesium stearate ;Antioxidant bisphenol A 1 part.

Embodiment 2

[0042] A low-temperature-resistant PVC cable material, said cable material comprising the following components in parts by weight:

[0043] The PVC resin is 100 parts of a mixture of three different PVC resins with a polymerization degree of 1800-1650, 1650-1500 and 1500-1350 in a mass ratio of 3:5:2; the phenyl content is 50%, and the number-average mole Quality is 35 parts of silicone resin of 3500g / mol; Viscosity is 1500mm 2 45 parts of long-chain alkyl modified silicone oil per s; 30 parts of hydrophobic superfine precipitated white carbon black with a particle size of 1500nm; 45 parts of nano-calcium carbonate; 8 parts of acid-binding agent diammonium hydrogen phosphate; lubricant stearin Calcium acid 3 parts; Antioxidant CA, 3 parts.

Embodiment 3

[0045] A low-temperature-resistant PVC cable material, said cable material comprising the following components in parts by weight:

[0046] The PVC resin is 100 parts of a mixture of three different PVC resins with a polymerization degree of 1800-1650, 1650-1500 and 1500-1350 in a mass ratio of 3:5:2; the phenyl content is 40%, and the number-average mole Quality is 2500g / mol silicone resin 30 parts; Viscosity is 1200mm 2 35 parts of aminoalkyl silicone oil per s; 20 parts of hydrophobic superfine precipitated white carbon black with a particle size of 1000nm; 30 parts of nanometer calcium carbonate; 4 parts of acid-binding ammonium dihydrogen phosphate; 2 parts of paraffin; 264 parts of antioxidant 2 servings.

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Abstract

The invention relates to a cable material, in particular to a low temperature-resistant PVC (Polyvinyl Chloride) cable material and a preparation method thereof. The low temperature-resistant PVC cable material is prepared from the following components in parts by weight: 100 parts of PVC resin, 20 to 35 parts of organosilicone resin, 30 to 45 parts of silicone oil, 15 to 30 parts of white carbonblack, 20 to 45 parts of nano calcium carbonate, 3 to 8 parts of acid-binding agent, 1 to 3 parts of lubricating agent and 1 to 3 parts of antioxidant. The low temperature-resistant PVC cable materialdisclosed by the invention has the following beneficial effects that (1) through a plasticizing effect of the organosilicone resin and the silicone oil, low temperature resistance of the low temperature-resistant PVC cable material can be effectively improved; (2) a formula and a preparation technology of the low temperature-resistant PVC cable material are simple, are low in cost, are capable ofproducing without changing existing equipment and are suitable for large-scale production; (3) the obtained low temperature-resistant PVC cable material also is good in mechanical property, weather fastness and flame resistance.

Description

technical field [0001] The invention relates to a cable material, in particular to a low temperature resistant PVC cable material. Background technique [0002] PVC cable material is based on polyvinyl chloride, adding stabilizers, dioctyl phthalate, diisodecyl phthalate, dioctyl terephthalate, trioctyl trimellitate, etc. Plasticizers and inorganic fillers such as calcium carbonate, additives such as additives and lubricants, are particles prepared by mixing, kneading and extruding. [0003] The area of ​​alpine regions in my country accounts for about 27.9% of the total land area. Most of the energy-rich Northeast, Inner Mongolia, and Northwest regions are located in alpine regions, and the temperature in winter is often lower than -50°C. How to improve the low-temperature reliability of cables has become an urgent problem to be solved. A major technical issue. The low-temperature impact embrittlement temperature of traditional PVC cable materials is between -15°C and -20°...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L83/04C08K13/02C08K3/36C08K3/26C08K3/32H01B3/44
CPCC08L27/06C08K2003/265C08K2003/322C08K2003/323C08K2003/324C08K2201/011C08L2201/02C08L2203/202C08L2205/025C08L2205/035H01B3/443C08L83/04C08K13/02C08K3/36C08K3/26C08K3/32
Inventor 赵亚琼
Owner ZHEJIANG WELLSCOM PLASTIC CO LTD
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