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Automatic temperature control cable material resin composition and preparation method thereof

A cable material resin and composition technology, applied in the field of automatic temperature control cable material resin composition and its preparation, can solve the problems of poor temperature control performance and low PTC strength, and achieve high PTC strength, good temperature control performance, and use handy effect

Inactive Publication Date: 2009-12-23
JIANGYIN NANFANG GRANULATION FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the carbon black and graphite in the automatic temperature control cable resin composition have the disadvantages of low PTC strength and poor temperature control performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0025] Example 1, 89Kg modified PVC, 8Kg PVC stabilizer, 2Kg calcium carbonate filler, 0.2Kg BaTiO 3 , 0.15Kg SrTiO 3 , 0.2Kg Y 2 o 3 , 0.2Kg Nb 2 o 5 , 0.15Kg SiO 5 , 0.1Kg MnO 2 Put it into a high-speed mixer and heat and mix for 30 minutes at a heating temperature of 105°C; BaTiO 3 , SrTiO 3 , Y 2 o 3 , Nb 2 o 5 , SiO 5 and MnO 2 The fineness is 2000 mesh; the mixed material is extruded and granulated by a granulator to obtain an automatic temperature control cable material resin composition. The automatic temperature control cable material resin composition is used in the production of heating cables to produce automatic temperature control heating cables, and the self-limiting temperature of the heating cables is 80°C.

example 2

[0026] Example 2, 88.7Kg modified PVC, 8Kg PVC stabilizer, 2Kg calcium carbonate filler, 0.3Kg BaTiO 3 , 0.2Kg SrTiO 3 , 0.2Kg Y 2 o 3 , 0.3Kg Nb 2 o 5 , 0.2Kg SiO 5 , 0.1Kg MnO 2 Put it into a high-speed mixer and heat and mix for 30 minutes at a heating temperature of 105°C; BaTiO 3 , SrTiO 3 , Y 2 o 3 , Nb 2 o 5 , SiO 5 and MnO 2 The fineness is 2000 mesh; the mixed material is extruded and granulated by a granulator to obtain an automatic temperature control cable material resin composition. The automatic temperature control cable material resin composition is used in the production of heating cables to produce automatic temperature control heating cables, and the self-limiting temperature of the heating cables is 50°C.

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PUM

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Abstract

The invention relates to an automatic temperature control cable material resin composition comprising the following main components by weight percent: 85 to 90% of modified PVC, 5 to 10% of PVC stabilizing agent, 1 to 5% of filler, 0.1 to 0.3% of BaTiO3, 0.1 to 0.2% of SrTiO3, 0.1 to 0.3% of Y2O3, 0.1 to 0.3% of Nb2O5, 0.1 to 0.2% of SiO5 and 0.1 to 0.2% of MnO2. The invention also relates to a preparation method of the automatic temperature control cable material resin composition. The invention has the advantages of high PTC strength, good temperature-control performance, convenient use, energy saving and environmental protection.

Description

1. Technical field [0001] The invention relates to a cable material resin composition, in particular to an automatic temperature control cable material resin composition with PTC characteristics and a preparation method thereof. 2. Background technology [0002] The so-called PTC (Positive temperature coefficient) characteristic, that is, the positive temperature coefficient characteristic of resistance, as the temperature rises, the resistance of the heating element increases, thereby limiting or cutting off the current, automatically adjusting the output current, and keeping the temperature constant. Heating cables made of resins with this characteristic are called automatic temperature-control heating cables. [0003] The current automatic temperature control cable resin composition is generally based on a crystalline polymer compound, mixed with a large amount of conductive particles such as carbon black, graphite and metal powder, and the automatic temperature control t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/22C08L27/06C08K13/02C08K3/22C08K3/24H01B3/44
Inventor 周洪良
Owner JIANGYIN NANFANG GRANULATION FACTORY
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