CN102108170B - Automatic temperature control cable material resin composition having positive temperature coefficient (PTC) characteristic and preparation method thereof - Google Patents

Automatic temperature control cable material resin composition having positive temperature coefficient (PTC) characteristic and preparation method thereof Download PDF

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Publication number
CN102108170B
CN102108170B CN2011100354233A CN201110035423A CN102108170B CN 102108170 B CN102108170 B CN 102108170B CN 2011100354233 A CN2011100354233 A CN 2011100354233A CN 201110035423 A CN201110035423 A CN 201110035423A CN 102108170 B CN102108170 B CN 102108170B
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China
Prior art keywords
resin composition
temperature control
control cable
material resin
cable material
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CN102108170A (en
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周洪良
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JIANGYIN SOUTHERN GRANULATION FACTORY CO Ltd
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JIANGYIN SOUTHERN GRANULATION FACTORY CO Ltd
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Abstract

The invention relates to an automatic temperature control cable material resin composition, which mainly comprises the following components in percentage by weight: 85 to 90 percent of modified polyvinyl chloride (PVC), 5 to 10 percent of PVC stabilizer, 3 to 8 percent of filler, 0.2 to 0.5 percent of BaTiO3, 0.2 to 0.5 percent of SrTiO3, 0.2 to 0.4 percent of Y2O3, 0.1 to 0.3 percent of Nb2O5, 0.1 to 0.5 percent of Nd2O3 and 0.1 to 0.5 percent of Ce2O3. The invention also relates to the preparation method of the automatic temperature control cable material resin composition. The automatic temperature control cable material resin composition has the advantages of high PTC strength, high temperature control performance, convenience for use, energy conservation and environment protection.

Description

Automatic temperature control cable material resin composition and preparation method with ptc characteristics
Technical field
The present invention relates to a kind of cable material resin composition, relate in particular to a kind of automatic temperature control cable material resin composition and preparation method with ptc characteristics.
Background technology
So-called PTC (Positive temperature coefficient) characteristic, i.e. positive temperature coefficient of resistance characteristic, along with temperature rises, heating element resistance increases, thus the outward current size is regulated in restriction or cut off electric current automatically, and temperature is kept constant.The heating cables of being processed by the resin with this specific character is referred to as temperature automatically controlled type heating cables.
Present automatic temperature control cable resin combination is a matrix with crystalline macromolecular compound generally; Conducting particless such as a large amount of blending carbon blacks, graphite and metal powder; The temperature automatically controlled type heating cables of processing by this resin combination; In successive energising or the circulation of break-make electricity, because resistance raises, surface temperature descends very big.This is that the difference of polarity and thermal expansion between macromolecule matrix and conduction current carrier causes carbon black particle displacement and reunion on the one hand, has produced to be separated and to cause; Be that the adaptation difference causes between heating element and electrode on the other hand.It is low that carbon black, the graphite of while in the automatic temperature control cable resin combination has PTC intensity, the shortcoming of temperature-control performance difference; Chinese patent CN101608044 discloses a kind of automatic temperature control cable material resin composition and preparation method thereof, and its main ingredient and weight percent are: modified PVC 85～90, PVC stablizer 5～10, filler 1～5, BaTiO 30.1～0.3, SrTiO 30.1～0.2, Y 2O 30.1～0.3, Nb 2O 50.1～0.3, SiO 50.1～0.2, MnO 20.1～0.2; Certainly the fluctuation of limitting temperature of the temperature automatically controlled type heating cables that the automatic temperature control cable material resin composition of this patent is processed is ± 10 ℃.
Summary of the invention
To above-mentioned shortcoming, the object of the present invention is to provide a kind of PTC intensity height, good temperature-control performance, limit the little automatic temperature control cable material resin composition of fluctuation of temperature certainly.
Technology contents of the present invention does, a kind of automatic temperature control cable material resin composition with ptc characteristics, and its main ingredient and weight percent are following:
Modified PVC 80～88
PVC stablizer 5～10
Filler 3～8
BaTiO 3 0.2～0.5
SrTiO 3 0.2～0.5
Y 2O 3 0.2～0.4
Nb 2O 5 0.1～0.3
Nd 2O 3 0.1～0.5
Ce 2O 3 0.1～0.5?。
BaTiO in above-mentioned automatic temperature control cable material resin composition with ptc characteristics 3, SrTiO 3, Y 2O 3, Nb 2O 5, Nd 2O 3And Ce 2O 3Fineness be 1500～2000 orders.
Filler is this area pearl filler commonly used in above-mentioned automatic temperature control cable material resin composition with ptc characteristics, and the PVC stablizer is this area barium zinc stabilizer commonly used.
Another object of the present invention is to provide above-mentioned preparation method with automatic temperature control cable material resin composition of ptc characteristics.
A kind of preparation method with automatic temperature control cable material resin composition of ptc characteristics, its step is following:
(1), each material is put into high-speed mixer as following weight percent:
Modified PVC 85～90, PVC stablizer 5～10, filler 3～8, BaTiO 30.2～0.5, SrTiO 30.2～0.5, Y 2O 30.2～0.4, Nb 2O 50.1～0.3, Nd 2O 30.1～0.5, Ce 2O 30.1～0.5;
(2), above-mentioned material heated in high-speed mixer mixed 20～40 minutes, Heating temperature is 90～110 ℃;
(3), mixed material in the step (2) is promptly got automatic temperature control cable material resin composition through the tablets press extruding pelletization.
The advantage that the present invention compared with prior art has is: do not contain carbon black or graphite in the automatic temperature control cable material resin composition of the present invention; Its PTC intensity height, good temperature-control performance and easy to use, energy-conserving and environment-protective thus, the fluctuation of limitting temperature certainly of the temperature automatically controlled type heating cables of processing is ± 5 ℃.
Embodiment
In following routine embodiment; Modified PVC is the WS1300 modified PVC that ShanghaiChlorine and Alkali Chemical Co Ltd produces; The PVC stablizer is the GZ-589BZ barium zinc stabilizer of Xiamen City with Allianz auspicious chemical industry ltd, and pearl filler is 1500 purpose water-ground limestones for the fineness that Omya ltd produces.
The example 1, with 85Kg modified PVC, 8Kg PVC stablizer, 5Kg pearl filler, 0.4Kg BaTiO 3, 0.3Kg SrTiO 3, 0.3Kg Y 2O 3, 0.3Kg Nb 2O 5, 0.4Kg Nd 2O 3, 0.3Kg Ce 2O 3Put into the high-speed mixer heating and mixed 30 minutes, Heating temperature is 105 ℃; BaTiO 3, SrTiO 3, Y 2O 3, Nb 2O 5, Nd 2O 3And Ce 2O 3Fineness be 2000 orders; Mixed material promptly gets automatic temperature control cable material resin composition through the tablets press extruding pelletization.Automatic temperature control cable material resin composition is used for heating cables production, processes temperature automatically controlled type heating cables, the temperature of limit certainly of this heating cables is 70 ± 5 ℃.
The example 2, with 87Kg modified PVC, 7Kg PVC stablizer, 4.5Kg pearl filler, 0.3Kg BaTiO 3, 0.2Kg SrTiO 3, 0.3Kg Y 2O 3, 0.2Kg Nb 2O 5, 0.3Kg Nd 2O 3, 0.2Kg Ce 2O 3Put into the high-speed mixer heating and mixed 30 minutes, Heating temperature is 105 ℃; BaTiO 3, SrTiO 3, Y 2O 3, Nb 2O 5, Nd 2O 3And Ce 2O 3Fineness be 2000 orders; Mixed material promptly gets automatic temperature control cable material resin composition through the tablets press extruding pelletization.Automatic temperature control cable material resin composition is used for heating cables production, processes temperature automatically controlled type heating cables, the temperature of limit certainly of this heating cables is 60 ± 5 ℃.

Claims (3)

1. the automatic temperature control cable material resin composition that has ptc characteristics, its main ingredient and weight percent are following:
Modified PVC 80～88
PVC stablizer 5～10
Filler 3～8
BaTiO 3 0.2～0.5
SrTiO 3 0.2～0.5
Y 2O 3 0.2～0.4
Nb 2O 5 0.1～0.3
Nd 2O 3 0.1～0.5
Ce 2O 3 0.1～0.5?。
2. the automatic temperature control cable material resin composition with ptc characteristics according to claim 1 is characterized in that BaTiO 3, SrTiO 3, Y 2O 3, Nb 2O 5, Nd 2O 3And Ce 2O 3Fineness be 1500～2000 orders.
3. the preparation method with automatic temperature control cable material resin composition of ptc characteristics according to claim 1, its step is following:
(1), each material is put into high-speed mixer as following weight percent:
Modified PVC 80～88, PVC stablizer 5～10, filler 3～8, BaTiO 30.2～0.5, SrTiO 30.2～0.5, Y 2O 30.2～0.4, Nb 2O 50.1～0.3, Nd 2O 30.1～0.5, Ce 2O 30.1～0.5;
(2), above-mentioned material heated in high-speed mixer mixed 20～40 minutes, Heating temperature is 90～110 ℃;
(3), mixed material in the step (2) is promptly got automatic temperature control cable material resin composition through the tablets press extruding pelletization.
CN2011100354233A 2011-02-10 2011-02-10 Automatic temperature control cable material resin composition having positive temperature coefficient (PTC) characteristic and preparation method thereof Expired - Fee Related CN102108170B (en)

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CN2011100354233A CN102108170B (en) 2011-02-10 2011-02-10 Automatic temperature control cable material resin composition having positive temperature coefficient (PTC) characteristic and preparation method thereof

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Application Number Priority Date Filing Date Title
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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101608044A (en) * 2009-07-14 2009-12-23 江阴市南方造粒厂有限公司 A kind of automatic temperature control cable material resin composition and preparation method thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100722518B1 (en) * 2006-03-16 2007-05-28 경남대학교 산학협력단 Compositions of rigid pvc foam sheet

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101608044A (en) * 2009-07-14 2009-12-23 江阴市南方造粒厂有限公司 A kind of automatic temperature control cable material resin composition and preparation method thereof

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