Polyvinyl chloride (PVC) insulating plastics with wide temperature and high electrical performance

A high electrical performance, polyvinyl chloride technology, applied in the direction of organic insulators, plastic/resin/wax insulators, etc., can solve the problem of low temperature resistance performance degradation, achieve low cost, meet high performance requirements, and excellent electrical insulation performance Effect

Active Publication Date: 2010-03-03
TIANJIN 609 CABLE COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the electrical properties of insulating plastics, calcined kaolin (clay) was added to the original formula. The test results showed that while the electrical properties were improved, the low temperature resistance decreased.

Method used

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  • Polyvinyl chloride (PVC) insulating plastics with wide temperature and high electrical performance
  • Polyvinyl chloride (PVC) insulating plastics with wide temperature and high electrical performance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: The composition of the polyvinyl chloride insulating plastic with wide temperature and high electrical performance and the weight percentage of each component are:

[0032] Polyvinyl chloride resin 65% Dioctyl terephthalate 13.5%

[0033] Dioctyl Phthalate 13.5% Lead Sulfate Tribasic 1.8%

[0034] Lead dibasic phosphite 1.8% Bisphenol A 0.3%

[0035] Stearic acid 0.15% White wax 0.15%

[0036] Calcined Kaolin 3.8%.

Embodiment 2

[0037] Embodiment 2: The composition of the polyvinyl chloride insulating plastic with wide temperature and high electrical performance and the percentage by weight of each component are:

[0038] Polyvinyl chloride resin 65% Dioctyl terephthalate 27%

[0039] Lead Sulfate Tribasic 3.6% Bisphenol A 0.3%

[0040] Stearic Acid 0.3% Calcined Kaolin 3.8%.

Embodiment 3

[0041] Embodiment 3: The composition of the polyvinyl chloride insulating plastic with wide temperature and high electrical performance and the percentage by weight of each component are:

[0042] Polyvinyl Chloride Resin 65% Dioctyl Phthalate 27%

[0043] Calcium Zinc Composite Stabilizer 3.6% Bisphenol A 0.3%

[0044] White Wax 0.3% Calcined Kaolin 3.8%.

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Abstract

The invention relates to a polyvinyl chloride (PVC) insulating plastics with wide temperature and high electrical performance. The compositions and the weight percentage of each composition are as follows: 55-75% of PVS resin, 20-35% of plasticizer, 1.5-5% of stabilizer, 0.1-0.6% of antioxygen, 0.1-0.6% of lubricant, and 1-6% of functional fillers. The PVC insulating plastics has excellent electrical insulating property, good cold tolerance under low temperature, and is especially applied in outdoor exploration operation in cold regions with inclement condition. The cables produced by the plastic have no cracking phenomenon after being conducted winding test at the temperature of minus 40 DEG C for 24 hours under low-temperature environment. The plastics are not only applied in low temperature environment, but also used in the production and application of wires and cables with high electrical property requirement. The insulating plastics have low cost and good processing property, andare suitable for scale production, thereby meeting the requirement on high property of PVC insulating plastics in the market.

Description

technical field [0001] The invention relates to the formulation of insulating plastics, in particular to a polyvinyl chloride insulating plastic with wide temperature and high electrical performance. Background technique [0002] Generally, insulating plastics for wires and cables will have poor low temperature resistance when ensuring electrical performance. PVC insulating plastics for wires and cables are based on polyvinyl chloride resin, and a certain proportion of plasticizers, stabilizers and other additives are added to the polyvinyl chloride resin. In order to improve the electrical properties of insulating plastics, calcined kaolin (pottery clay) was added to the original formula. The test results showed that while the electrical properties were improved, the low temperature resistance decreased. After analysis, it is believed that the selection of its additives and the reasonable ratio between additives are the key to improving product performance indicators. In ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K13/02C08K3/34H01B3/44
Inventor 刘家栋朱丽超王媛敬孙文龙马砚杰侯潭斌关怀宇
Owner TIANJIN 609 CABLE COMPANY
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