CN104582028B - A kind of composite high-molecular self limiting temperature accompanying-heat cable - Google Patents
A kind of composite high-molecular self limiting temperature accompanying-heat cable Download PDFInfo
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- CN104582028B CN104582028B CN201310483085.9A CN201310483085A CN104582028B CN 104582028 B CN104582028 B CN 104582028B CN 201310483085 A CN201310483085 A CN 201310483085A CN 104582028 B CN104582028 B CN 104582028B
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Abstract
The invention discloses a kind of composite high-molecular self limiting temperature accompanying-heat cable, its ptc material adopts high molecular based PTC composite, described high molecular based PTC composite is by epoxy resin, low structural conductive carbon black, nickel foil, carbon fiber, titanium carbonitride, polyamide, ethylenediamine is made, wherein, low structural conductive carbon black addition in the epoxy is 16-25%wt, nickel foil addition in the epoxy is 7-10%wt, carbon fiber addition in the epoxy is 13-24%wt, titanium carbonitride addition in the epoxy is 12-16%wt, the weight ratio of polyamide and low structural conductive carbon black is 0.05-0.1, the weight ratio of ethylenediamine and titanium carbonitride is 0.08-0.15, low structural conductive carbon black, nickel foil, carbon fiber, titanium carbonitride total addition level in the epoxy is 50-65%wt。The present invention proposes a kind of composite high-molecular self limiting temperature accompanying-heat cable, it is achieved that the performance boost to accompanying-heat cable, and its simple in construction, good stability, PTC intensity are high。
Description
Technical field
The present invention relates to accompanying-heat cable technical field, particularly relate to a kind of composite high-molecular self limiting temperature accompanying-heat cable。
Background technology
Accompanying-heat cable is widely used in many fields, need, in oil, chemical industry, steam power plant etc., the place that prevents the liquid substance solidification/flowing velocity in pipeline or tank slow as mainly utilized in industrial aspect, in communal facility, be mainly used in the heat tracing of fire protection pipeline, can be used in civilian heating of house and winter yard piping antifreeze in。The core of accompanying-heat cable is in that its structure and makes the PTC(PositiveTemperatureCoefficient of its electrothermal part) material。Ptc material refers to a kind of thermo-sensitive material that the resistance value of material rises with the rising of temperature, namely the resistance of material or resistivity in a certain specific temperature range time be held essentially constant or only have the change of small quantity, and when temperature reaches near certain specific knee pointy temperature of material, the resistivity of material can be undergone mutation in the narrow temperature range of several years or tens degree, and resistivity increases rapidly 103-109The order of magnitude。
Ptc material is broadly divided into ceramic base ptc material and high molecular based PTC material two types。Wherein, high molecular based PTC material demonstrates huge using value owing to having the advantages such as easy processing, manufacturing cost is relatively low, conductive extensions is big, room temperature resistivity is low。But, in prior art, high molecular based PTC material and macromolecule accompanying-heat cable there is also the defects such as stability is poor, PTC intensity is relatively low。
Summary of the invention
In order to solve the technical problem existed in background technology, the present invention proposes a kind of composite high-molecular self limiting temperature accompanying-heat cable, it is achieved that the performance boost to accompanying-heat cable, and its simple in construction, good stability, PTC intensity are high。
A kind of composite high-molecular self limiting temperature accompanying-heat cable that the present invention proposes, including PTC core ribbon, PTC core ribbon is by two heating-wires being arranged in parallel and is coated on its outer ptc layer and constitutes, coated insulation layer, metal screen layer and wear-resistance protective sleeve layer successively outside PTC core ribbon；Described ptc material adopts high molecular based PTC composite, described high molecular based PTC composite is by epoxy resin, low structural conductive carbon black, nickel foil, carbon fiber, titanium carbonitride, polyamide, ethylenediamine is made, wherein, low structural conductive carbon black addition in the epoxy is 16-25%wt, nickel foil addition in the epoxy is 7-10%wt, carbon fiber addition in the epoxy is 13-24%wt, titanium carbonitride addition in the epoxy is 12-16%wt, the weight ratio of polyamide and low structural conductive carbon black is 0.05-0.1, the weight ratio of ethylenediamine and titanium carbonitride is 0.08-0.15, low structural conductive carbon black, nickel foil, carbon fiber, titanium carbonitride total addition level in the epoxy is 50-65%wt。
Preferably, low structural conductive carbon black addition in the epoxy is 20%wt。
Preferably, nickel foil addition in the epoxy is 8%wt。
Preferably, carbon fiber addition in the epoxy is 16%wt。
Preferably, titanium carbonitride addition in the epoxy is 16%wt。
Preferably, low structural conductive carbon black, nickel foil, carbon fiber, titanium carbonitride total addition level in the epoxy are 60%wt。
Preferably, polyamide is 0.07 with the weight ratio of low structural conductive carbon black。
Preferably, ethylenediamine is 0.1 with the weight ratio of titanium carbonitride。
A kind of prepare the method for high molecular based PTC composite in composite high-molecular self limiting temperature accompanying-heat cable, comprise the following steps:
S1 weighs a certain amount of epoxy resin, and with reference to the epoxy resin amount of weighing, weighs low structural conductive carbon black, nickel foil, carbon fiber, titanium carbonitride by addition, weighed above-mentioned each component raw material is put into and carries out mixing 10-15 minute in batch mixer；
S2, with reference to structural conductive carbon black low in step S1, the titanium carbonitride amount of weighing, weighs polyamide, ethylenediamine by weight；
S3 is by the polyamide weighed in the epoxy resin mixed in step S1, low structural conductive carbon black, nickel foil, carbon fiber, the mixture of titanium carbonitride and step S2, ethylenediamine, jointly put into mixing roll carries out mixing, melting temperature is 170-180 DEG C, mixing time is 10-15min, cooling, pelletizing after mixing。
In the present invention, adding on the basis that low structural conductive carbon black gives thing as conduction, be also added with nickel foil, carbon fiber, titanium carbonitride as conducting particles in epoxy resin-base, come from different backgrounds and possess different abilities system, thus utilizing the additivity that material has, improving performance；In this system, carbon fiber forms conductive network in the base, remote conductive ability is provided, carbon black particle provides short range conductive capability and can play bridge joint effect for the overlap joint of adjacent carbons fiber, nickel foil, titanium carbonitride has the good travelling performance in matrix, overcome the defect of the conduction inhomogeneities that carbon fiber orientation arrangement brings, nickel foil simultaneously, titanium carbonitride overcomes low structural conductive carbon black and is prone to the defect of cohesion, prevent the fluctuation of conductivity, improve the stability of performance, and when reaching PTC conversion temperature, the thermal expansion of epoxy resin makes low structural conductive carbon black, nickel foil, carbon fiber, titanium carbonitride all loses conductive capability, thus causing strong PTC effect, it is obviously improved PTC intensity；Polyamide, ethylenediamine are as the firming agent of low structural conductive carbon black, titanium carbonitride, it is possible to put forward high performance stability further。
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of composite high-molecular self limiting temperature accompanying-heat cable that the present invention proposes；
What Fig. 2 was that the present invention proposes a kind of prepares the schematic flow sheet of the method for high molecular based PTC composite in composite high-molecular self limiting temperature accompanying-heat cable。
Detailed description of the invention
As it is shown in figure 1, the structural representation of a kind of composite high-molecular self limiting temperature accompanying-heat cable that Fig. 1 is the present invention to be proposed。
With reference to Fig. 1, a kind of composite high-molecular self limiting temperature accompanying-heat cable that the present invention proposes, PTC core ribbon including flat type banding, PTC core ribbon is by two heating-wires being arranged in parallel 1 and is coated on its outer ptc layer 2 and constitutes, coated insulation layer 3, metal screen layer 4 and wear-resistance protective sleeve layer 5 successively outside PTC core ribbon；Described ptc material adopts high molecular based PTC composite。
In one embodiment, high molecular based PTC composite is by epoxy resin, low structural conductive carbon black, nickel foil, carbon fiber, titanium carbonitride, polyamide, ethylenediamine is made, wherein, low structural conductive carbon black addition in the epoxy is 20%wt, nickel foil addition in the epoxy is 8%wt, carbon fiber addition in the epoxy is 16%wt, titanium carbonitride addition in the epoxy is 16%wt, the weight ratio of polyamide and low structural conductive carbon black is 0.07, the weight ratio of ethylenediamine and titanium carbonitride is 0.1, low structural conductive carbon black, nickel foil, carbon fiber, titanium carbonitride total addition level in the epoxy is 60%wt。
In another kind of embodiment, high molecular based PTC composite is by epoxy resin, low structural conductive carbon black, nickel foil, carbon fiber, titanium carbonitride, polyamide, ethylenediamine is made, wherein, low structural conductive carbon black addition in the epoxy is 25%wt, nickel foil addition in the epoxy is 10%wt, carbon fiber addition in the epoxy is 13%wt, titanium carbonitride addition in the epoxy is 15%wt, the weight ratio of polyamide and low structural conductive carbon black is 0.05, the weight ratio of ethylenediamine and titanium carbonitride is 0.15, low structural conductive carbon black, nickel foil, carbon fiber, titanium carbonitride total addition level in the epoxy is 63%wt。
In another embodiment, high molecular based PTC composite is by epoxy resin, low structural conductive carbon black, nickel foil, carbon fiber, titanium carbonitride, polyamide, ethylenediamine is made, wherein, low structural conductive carbon black addition in the epoxy is 16%wt, nickel foil addition in the epoxy is 7%wt, carbon fiber addition in the epoxy is 20%wt, titanium carbonitride addition in the epoxy is 12%wt, the weight ratio of polyamide and low structural conductive carbon black is 0.1, the weight ratio of ethylenediamine and titanium carbonitride is 0.08, low structural conductive carbon black, nickel foil, carbon fiber, titanium carbonitride total addition level in the epoxy is 55%wt。
In the present invention, adding on the basis that low structural conductive carbon black gives thing as conduction, be also added with nickel foil, carbon fiber, titanium carbonitride as conducting particles in epoxy resin-base, come from different backgrounds and possess different abilities system, thus utilizing the additivity that material has, improving performance；In this system, carbon fiber forms conductive network in the base, remote conductive ability is provided, carbon black particle provides short range conductive capability and can play bridge joint effect for the overlap joint of adjacent carbons fiber, nickel foil, titanium carbonitride has the good travelling performance in matrix, overcome the defect of the conduction inhomogeneities that carbon fiber orientation arrangement brings, nickel foil simultaneously, titanium carbonitride overcomes low structural conductive carbon black and is prone to the defect of cohesion, prevent the fluctuation of conductivity, improve the stability of performance, and when reaching PTC conversion temperature, the thermal expansion of epoxy resin makes low structural conductive carbon black, nickel foil, carbon fiber, titanium carbonitride all loses conductive capability, thus causing strong PTC effect, it is obviously improved PTC intensity；Polyamide, ethylenediamine are as the firming agent of low structural conductive carbon black, titanium carbonitride, it is possible to put forward high performance stability further。
As in figure 2 it is shown, Fig. 2 be that the present invention proposes a kind of prepare the schematic flow sheet of the method for high molecular based PTC composite in composite high-molecular self limiting temperature accompanying-heat cable。
With reference to Fig. 2, the invention allows for and a kind of prepare the method for high molecular based PTC composite in composite high-molecular self limiting temperature accompanying-heat cable, comprise the following steps:
S1, weigh a certain amount of epoxy resin, and with reference to the epoxy resin amount of weighing, weigh low structural conductive carbon black, nickel foil, carbon fiber, titanium carbonitride by addition, weighed above-mentioned each component raw material is put into batch mixer carries out mixing 10 minutes；
S2, with reference to structural conductive carbon black low in step S1, the titanium carbonitride amount of weighing, weigh polyamide, ethylenediamine by weight；
S3, the polyamide by weighing in the epoxy resin mixed in step S1, low structural conductive carbon black, nickel foil, carbon fiber, the mixture of titanium carbonitride and step S2, ethylenediamine, jointly put into mixing roll carries out mixing, melting temperature is 170 DEG C, mixing time is 15min, cooling, pelletizing after mixing。
The above; it is only the present invention preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; any those familiar with the art is in the technical scope that the invention discloses; it is equal to replacement according to technical scheme and inventive concept thereof or is changed, all should be encompassed within protection scope of the present invention。
Claims (9)
1. a composite high-molecular self limiting temperature accompanying-heat cable, including PTC core ribbon, PTC core ribbon is by two heating-wires being arranged in parallel and is coated on its outer ptc layer and constitutes, coated insulation layer, metal screen layer and wear-resistance protective sleeve layer successively outside PTC core ribbon；It is characterized in that, described ptc material adopts high molecular based PTC composite, described high molecular based PTC composite is by epoxy resin, low structural conductive carbon black, nickel foil, carbon fiber, titanium carbonitride, polyamide and ethylenediamine are made, wherein, low structural conductive carbon black addition in the epoxy is 16-25%wt, nickel foil addition in the epoxy is 7-10%wt, carbon fiber addition in the epoxy is 13-24%wt, titanium carbonitride addition in the epoxy is 12-16%wt, the weight ratio of polyamide and low structural conductive carbon black is 0.05-0.1, the weight ratio of ethylenediamine and titanium carbonitride is 0.08-0.15, low structural conductive carbon black, nickel foil, carbon fiber and titanium carbonitride total addition level in the epoxy is 50-65%wt。
2. composite high-molecular self limiting temperature accompanying-heat cable according to claim 1, it is characterised in that low structural conductive carbon black addition in the epoxy is 20%wt。
3. composite high-molecular self limiting temperature accompanying-heat cable according to claim 1, it is characterised in that nickel foil addition in the epoxy is 8%wt。
4. composite high-molecular self limiting temperature accompanying-heat cable according to claim 1, it is characterised in that carbon fiber addition in the epoxy is 16%wt。
5. composite high-molecular self limiting temperature accompanying-heat cable according to claim 1, it is characterised in that titanium carbonitride addition in the epoxy is 16%wt。
6. the composite high-molecular self limiting temperature accompanying-heat cable according to any one of claim 1-5, it is characterised in that low structural conductive carbon black, nickel foil, carbon fiber and titanium carbonitride total addition level in the epoxy are 60%wt。
7. composite high-molecular self limiting temperature accompanying-heat cable according to claim 6, it is characterised in that the weight ratio of polyamide and low structural conductive carbon black is 0.07。
8. composite high-molecular self limiting temperature accompanying-heat cable according to claim 6, it is characterised in that the weight ratio of ethylenediamine and titanium carbonitride is 0.1。
9. the method for high molecular based PTC composite in the composite high-molecular self limiting temperature accompanying-heat cable that a kind is prepared as described in any one of claim 1-8, it is characterised in that comprise the following steps:
S1, weigh a certain amount of epoxy resin, and with reference to the epoxy resin amount of weighing, weigh low structural conductive carbon black, nickel foil, carbon fiber and titanium carbonitride by addition, weighed above-mentioned each component raw material is put into batch mixer carries out mixing 10-15 minute；
S2, with reference to structural conductive carbon black low in step S1 and the titanium carbonitride amount of weighing, weigh polyamide and ethylenediamine by weight；
S3, by the polyamide weighed in the mixture of the epoxy resin mixed in step S1, low structural conductive carbon black, nickel foil, carbon fiber and titanium carbonitride and step S2 and ethylenediamine, jointly put into mixing roll carries out mixing, melting temperature is 170-180 DEG C, mixing time is 10-15min, cooling, pelletizing after mixing。
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4966729A (en) * | 1987-04-15 | 1990-10-30 | Le Carbone-Lorraine | Material having a resistivity with a positive temperature coefficient |
| CN1379415A (en) * | 2001-04-06 | 2002-11-13 | 宝电通科技股份有限公司 | Composite structural material for thermosensitive resistor with positive temp coefficient and its preparing process |
| CN102573154A (en) * | 2012-02-02 | 2012-07-11 | 西安盖沃热能科技有限公司 | Self temperature limiting heat tracing strip of PTC (positive temperature coefficient) high polymer conductive composite material and preparation method thereof |
| CN103304872A (en) * | 2013-05-24 | 2013-09-18 | 安邦电气集团有限公司 | High-density polyvinyl PTC high molecular exothermic material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100597448B1 (en) * | 2000-02-16 | 2006-07-05 | 삼성토탈 주식회사 | Incombustible polyolefin resin composition |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4966729A (en) * | 1987-04-15 | 1990-10-30 | Le Carbone-Lorraine | Material having a resistivity with a positive temperature coefficient |
| CN1379415A (en) * | 2001-04-06 | 2002-11-13 | 宝电通科技股份有限公司 | Composite structural material for thermosensitive resistor with positive temp coefficient and its preparing process |
| CN102573154A (en) * | 2012-02-02 | 2012-07-11 | 西安盖沃热能科技有限公司 | Self temperature limiting heat tracing strip of PTC (positive temperature coefficient) high polymer conductive composite material and preparation method thereof |
| CN103304872A (en) * | 2013-05-24 | 2013-09-18 | 安邦电气集团有限公司 | High-density polyvinyl PTC high molecular exothermic material and preparation method thereof |
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Address after: 239300 Anhui city of Chuzhou province Tianchang Tianye Road No. 288 Patentee after: Anbang Electric Co., Ltd. Address before: 239300 Anhui city of Chuzhou province Tianchang Tianye Road No. 288 Patentee before: Anbang Electrical Group Co., Ltd. |