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Cold-resistant PVC cable material and preparation method thereof

A cable material, cold-resistant technology, applied in plastic/resin/wax insulators, organic insulators, etc., can solve the problems of poor PVC process performance, high price of TPU, poor compatibility, etc., and achieve the effect of low manufacturing cost

Active Publication Date: 2013-01-30
HANGZHOU GAOXIN RUBBER & PLASTIC MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The third way to improve the cold resistance of PVC is to add EVA. EVA has good low temperature performance, and the extreme low temperature can reach -70 degrees, but the compatibility between EVA and PVC is poor.
[0006] The fourth way to improve the cold resistance of PVC is to add thermoplastic polyurethane (TPU). Although TPU has good low-temperature performance, and PVC and TPU can be dissolved in any proportion, TPU can be used as a non-volatile and anti-migration plasticizer for PVC. Use, the modified PVC embrittlement temperature can reach -60 degrees, but TPU is expensive, and the PVC process performance after TPU modification is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1: a kind of cold-resistant PVC cable material, it comprises PVC cable material, the cold-resistant temperature of the cable material gained after adding the copolymer of vinyl chloride and vinyl acetate to described PVC cable material reaches minus 50 degrees, its vinyl chloride and The copolymer of vinyl acetate is the copolymerization of vinyl chloride monomer and vinyl acetate under the action of an initiator to obtain vinyl acetate resin. The content of vinyl acetate in the vinyl acetate resin is between 10 and 25 and includes the end value. Add 5 to 8 parts of vinyl chloride resin to 100 parts of PVC cable material and prepare it to obtain a cable material that can withstand cold temperatures up to minus 50 degrees. (K value 60, VA content 10% or 15% or 20% or 25%) any value in the range including the end value, the value unit is weight.

Embodiment 2

[0013] Example 2: On the basis of Example 1, 5 parts of vinyl acetate resin is added to 100 parts of PVC cable material, and the cable material capable of cold-resistant temperature of minus 50 degrees can be obtained through preparation.

Embodiment 3

[0014] Example 3: On the basis of Example 1, 6 parts of vinyl acetate resin is added to 100 parts of PVC cable material and the cable material capable of cold resistance up to minus 50 degrees can be obtained through preparation.

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PUM

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Abstract

The invention relates to a cold-resistant PVC cable material which can resist the cold of minus 50DEG C, and a preparation method thereof; the material comprises PVC cable material; and after being added with the multipolymer of vinyl chloride and vinyl acetate, the cold resistant temperature of the cable material reaches minus 50DEG C. The invention has the advantages that: 1. the low-temperature impact brittleness temperature of the prepared low temperature resistant cable material can reaches minus 50DEG C; and 2. not only the process performance of PVC is not changed but also the manufacturing cost is low.

Description

technical field [0001] The invention relates to a cold-resistant PVC cable material with cold resistance reaching minus 50 degrees and a preparation method thereof, belonging to the field of cable material and cable material preparation method manufacturing field. Background technique [0002] PVC plastic is one of the five general-purpose synthetic plastics, and it is the second largest plastic variety in the world after polyethylene. Due to its good physical and mechanical properties, polyvinyl chloride resin can be used in the production of building materials, packaging materials, electronic materials, daily consumer goods, etc., and is widely used in various fields such as industry, agriculture, construction, transportation, power telecommunications, and packaging. However, PVC has poor cold resistance and low temperature impact resistance, which limits its application in low temperature conditions. [0003] One of the ways to improve the cold resistance of PVC soft pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06H01B3/44B29B9/06
Inventor 吴畏
Owner HANGZHOU GAOXIN RUBBER & PLASTIC MATERIALS CO LTD
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