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A Composite Polymer Thermistor

A thermistor and polymer technology, applied in thermistors, resistors, non-adjustable metal resistors, etc., can solve the problems of resistance rise, easy oxidation, and poor resistance reproducibility, so as to reduce impedance, The effect of stabilizing the change rate of temperature resistance and enhancing electron conductivity

Active Publication Date: 2016-08-17
THINKING ELECTRONIC IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, if nickel is not tightly protected and insulated from air, it will be easily oxidized after a period of time, resulting in an increase in resistance.
In addition, after the conductive composite material is tripped, its resistance reproducibility is not good

Method used

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  • A Composite Polymer Thermistor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A composite polymer thermistor, comprising a PTC composite material as an intermediate layer and a composite copper-plated foil coated on the surface of the PTC composite material, the PTC composite material includes at least one crystalline polymer; the At least one TiC highly conductive nanoparticle powder with a particle size of 40nm and a TiC conductive microparticle powder with a particle size of 5 μm are evenly distributed in the crystalline polymer; the TiC highly conductive nanoparticle with a particle size of 40nm The mass ratio of the powder to the TiC conductive micro-particle powder with a particle size of 5 μm is 0.1:9.9. Wherein the crystalline polymer is one of high-density polyethylene or low-density polyethylene or a combination thereof.

[0014] The composite copper-plated foil is a TiC / Ni composite copper-plated foil; it includes a TiC coating; the TiC coating is formed by electroplating; the TiC particle size in the TiC coating is 40nm. The TiC / Ni c...

Embodiment 2

[0017] A composite polymer thermistor, comprising a PTC composite material as an intermediate layer and a composite copper-plated foil coated on the surface of the PTC composite material, the PTC composite material includes at least one crystalline polymer; the At least one TiC highly conductive nanoparticle powder with a particle size of 40nm and a TiC conductive microparticle powder with a particle size of 5 μm are evenly distributed in the crystalline polymer; the TiC highly conductive nanoparticle with a particle size of 40nm The mass ratio of the powder to the TiC conductive micro-particle powder with a particle size of 5 is 0.5:9.5. Wherein the crystalline polymer is one of high-density polyethylene or low-density polyethylene or a combination thereof.

[0018] The composite copper-plated foil is a TiC / Ni composite copper-plated foil; it includes a TiC coating; the TiC coating is formed by electroplating; the TiC particle size in the TiC coating is 40nm. The TiC / Ni comp...

Embodiment 3

[0021] A composite polymer thermistor, comprising a PTC composite material as an intermediate layer and a composite copper-plated foil coated on the surface of the PTC composite material, the PTC composite material includes at least one crystalline polymer; the At least one TiC highly conductive nanoparticle powder with a particle size of 40nm and a TiC conductive microparticle powder with a particle size of 5 μm are evenly distributed in the crystalline polymer; the TiC highly conductive nanoparticle with a particle size of 40nm The mass ratio of the powder to the TiC conductive micro-particle powder with a particle size of 5 is 1:9. Wherein the crystalline polymer is one of high-density polyethylene or low-density polyethylene or a combination thereof.

[0022] The composite copper-plated foil is a TiC / Ni composite copper-plated foil; it includes a TiC coating; the TiC coating is formed by electroplating; the TiC particle size in the TiC coating is 40nm. The TiC / Ni composit...

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Abstract

The invention relates to a composite polymer thermistor, comprising a PTC composite material as an intermediate layer and a composite copper-plated foil coated on the surface of the PTC composite material, and the PTC composite material includes at least one crystalline high molecular polymer ; The crystalline polymer is uniformly distributed with at least one TiC highly conductive nano-particle powder with a particle size of 1-50 nm and a TiC conductive micro-particle powder with a particle size of 0.1-10 μm; the particle size is between The mass ratio of the TiC highly conductive nano particle powder of 1-50 nm to the TiC conductive micro particle powder with a particle diameter of 0.1-10 μm is 0.1-1:9-9.9. The invention adds TiC nanoparticles with a size of 1-50nm into the crystalline high molecular polymer, which can enhance the electronic conduction ability between TIC micro-particles with a size of 0.1-10μm; and has excellent high-temperature cycle stability.

Description

technical field [0001] The invention relates to a thermistor, in particular to a compound polymer thermistor made of polymer base / nanometer TiC reinforced filling PTC composite material and TiC / Ni composite copper-plated foil. Background technique [0002] TIC powder-filled polymer-based PTC composite material has become one of the preferred base materials for developing ultra-low resistance eddy current protection components because of its low resistance, high temperature resistance and excellent aging resistance. [0003] The data show that polymer-based inorganic nanocomposites not only have the surface effect and quantum size effect of nanomaterials, but also can combine the rigidity, dimensional stability and thermal stability of inorganic materials with the toughness, processability and dielectric properties of polymers. The properties are blended together to produce many specific properties. At present, organic-based nanocomposites composed of nanomaterials as disper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01C7/02C08L23/06C08K3/14
CPCH01C7/027H01C7/008Y10T428/256
Inventor 王海峰
Owner THINKING ELECTRONIC IND CO LTD