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Semi-hard low-temperature resistant PVC cable material and preparation method and application thereof

A technology of low temperature resistance and cable material, which is applied in the field of semi-rigid low temperature resistant PVC cable material and its preparation, can solve the problems of low temperature resistance and high hardness, and achieve high production efficiency, low production cost, and excellent low temperature resistance. Effect

Inactive Publication Date: 2019-03-01
SUZHOU HENGLI COMM MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to provide a semi-hard low temperature resistant PVC cable material and its preparation method and application, which is used to solve the technical problem that PVC cable products in the prior art cannot take into account both low temperature resistance and high hardness.

Method used

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  • Semi-hard low-temperature resistant PVC cable material and preparation method and application thereof

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Experimental program
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Effect test

Embodiment 1

[0028] The semi-rigid low temperature resistant PVC cable material of the present embodiment comprises the following components in parts by weight:

[0029] 100 parts of PVC resin, 7 parts of dioctyl phthalate, 5 parts of terpolymer, 25 parts of calcium carbonate, 0.2 parts of polyethylene wax, 0.2 parts of stearic acid, 2 parts of calcium zinc composite stabilizer, high density oxidation 0.2 parts of polyethylene wax.

[0030] Among them, the selected PVC resin has a polymerization degree of 1300; the terpolymer is a vinyl acetate / butyl acrylate / carbonyl copolymer material, and the melt index (MI value) of the terpolymer is 12g / 10min; the selected calcium carbonate mesh number is 2500 .

[0031] The preparation method of the semi-rigid low temperature resistant PVC cable material of the present embodiment comprises the following steps:

[0032] S1: Weigh PVC resin, dioctyl phthalate, terpolymer, calcium carbonate, polyethylene wax, stearic acid, calcium-zinc composite stabi...

Embodiment 2

[0036] The semi-rigid low temperature resistant PVC cable material of the present embodiment comprises the following components in parts by weight:

[0037] 100 parts of PVC resin, 6 parts of dioctyl phthalate, 15 parts of terpolymer, 20 parts of calcium carbonate, 0.15 parts of polyethylene wax, 0.2 parts of stearic acid, 5 parts of calcium-zinc composite stabilizer, high-density oxidation 0.4 parts of polyethylene wax.

[0038] Wherein, the performance and model of PVC resin, terpolymer, high-density oxidized polyethylene wax and calcium carbonate are with embodiment 1.

[0039] The preparation method of the semi-rigid low-temperature resistant PVC cable material in this embodiment is the same as that in Embodiment 1, and will not be repeated here.

Embodiment 3

[0041] The semi-rigid low temperature resistant PVC cable material of the present embodiment comprises the following components in parts by weight:

[0042] 100 parts of PVC resin, 5 parts of dioctyl phthalate, 20 parts of terpolymer, 20 parts of calcium carbonate, 0.15 parts of polyethylene wax, 0.2 parts of stearic acid, 3 parts of calcium zinc composite stabilizer, high density oxidation 0.6 parts of polyethylene wax.

[0043] Wherein, the performance and model of PVC resin, terpolymer, high-density oxidized polyethylene wax and calcium carbonate are with embodiment 1.

[0044] The preparation method of the semi-rigid low-temperature resistant PVC cable material in this embodiment is the same as that in Embodiment 1, and will not be repeated here.

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Abstract

The invention provides a semi-hard low-temperature resistant PVC cable material. The semi-hard low-temperature resistant PVC cable material is prepared from the following components in parts by weight: 100 parts of a PVC resin, 0-10 parts of dioctyl phthalate, 1-30 parts of terpolymer, 0-30 parts of calcium carbonate, 0.1-0.2 part of polyethylene wax, 0.1-0.2 part of stearic acid, 2-5 parts of a calcium-zinc composite stabilizer and 0.01-1 part of high-density oxidized polyethylene wax. The invention further provides a preparation method of the semi-hard low-temperature resistant PVC cable material. The preparation method of the semi-hard low-temperature resistant PVC cable material comprises the following steps that S1, each raw material is weighed according to the weight value of the formula, and the raw materials are added into a high-speed mixer for mixing and plasticizing; S2, the mixture is transferred to a double-screw extruder for extrusion processing, and extruding and granulating are carried out through a single-screw extrusion granulator; and S3, air-cooled conveying and packaging is carried out. The semi-hard low-temperature resistant PVC cable material can be used formanufacturing wire and cable sheathing layers and insulating layers with high product flexibility requirements, such as wind energy cables, photoelectric composite cables, elevator cables, and built-in wires of refrigeration equipment, and has good low-temperature resistance and high hardness.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a semi-rigid low-temperature resistant PVC cable material and a preparation method and application thereof. Background technique [0002] Traditional PVC cable materials use polyvinyl chloride as the base material. Plasticizers are added to reduce the resin processing temperature and product softening point. Add stabilizers to improve product heat resistance, delay PVC degradation, and add lubricants to improve product processing performance. , to make the material easier to demould and flow, etc., a product that mixes appropriate cable materials through screw extrusion and plasticization. With the advantages of low price and excellent performance, it has occupied an important position in the insulation and protection materials of wire and cable for a long time. At present, it is mainly used to improve the cold resistance of cable products by adding corresponding cold-resistant p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L31/04C08K5/12C08K3/26H01B3/44
CPCC08K2003/265C08L27/06C08L2203/202H01B3/443C08L31/04C08K5/12C08K3/26
Inventor 于德宝程晓松
Owner SUZHOU HENGLI COMM MATERIAL
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