CN106280365A - The critesistor of a kind of quick response and application thereof - Google Patents

The critesistor of a kind of quick response and application thereof Download PDF

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Publication number
CN106280365A
CN106280365A CN201610649737.5A CN201610649737A CN106280365A CN 106280365 A CN106280365 A CN 106280365A CN 201610649737 A CN201610649737 A CN 201610649737A CN 106280365 A CN106280365 A CN 106280365A
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China
Prior art keywords
parts
critesistor
carbon
response
quickly
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CN201610649737.5A
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Chinese (zh)
Inventor
汪洋
陈启志
李国春
江盈
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ANHUI NINGGUO TIANCHENG ELECTRICAL APPLIANCES Co Ltd
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ANHUI NINGGUO TIANCHENG ELECTRICAL APPLIANCES Co Ltd
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Priority to CN201610649737.5A priority Critical patent/CN106280365A/en
Publication of CN106280365A publication Critical patent/CN106280365A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/02—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/20—Applications use in electrical or conductive gadgets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention discloses critesistor and the application thereof of a kind of quick response, relate to PTC themistor and applied technical field thereof, the critesistor of described quick response is by polysiloxane, Merlon, epoxy resin, PVP, carbon-based material, metallic fiber, silicon dioxide, fire retardant, antioxidant, ultraviolet (UV) resistant agent, lubricant forms, PVP is made lamellar xerogel, obtain running through the carbon skeleton of whole critesistor after carbonization, it effectively shortens movement time, can respond rapidly to, reduce aftercurrent, improve the safety of critesistor, and there is excellent mechanical property and corrosion resistance, applied widely.

Description

The critesistor of a kind of quick response and application thereof
Technical field
The present invention relates to PTC themistor and applied technical field thereof, be specifically related to the temperature-sensitive electricity of a kind of quick response Resistance and application thereof.
Background technology
At present, the household electrical appliance such as air-conditioning, humidifier, electric heater generally use the electric heater of band blower fan and heat.But Be, when blower fan stall, inefficacy or because of running voltage on the low side when cause rotating speed to reduce or when shutting down, if electricity adds Hot device can not disconnect in time, and heating element heater can persistently carry out dry combustion method, may cause household electrical appliance complete machine overheating deforming, even Fire.
Thermal resistor is the resistor that a kind of resistance value on temperature is extremely sensitive, its most basic characteristic be its resistance with The change of temperature and change.High molecular PTC thermistor is to be manufactured by the polymeric material being filled with carbon black pellet Thermal resistor, it is widely used in post and telecommunications, computer, automobile and motorcycle electronics, battery of mobile phone, communications satellite, takes shelter from the thunder In the electronic circuits such as device, carrier rocket, aircraft, tank, Medical Instruments, grain depot, fire alarm, household electrical appliance, rose Stream protection or the effect of overheat protector.Compared to common thermal resistor, the resistance of high molecular PTC thermistor can be extensive Multiple, have the advantages that to can be repeated several times use, so that the research of high molecular PTC thermistor is more and more closed Note.It is known that for high molecular PTC thermistor, movement time is the shortest, it more can rapidly and effectively play Stream protection or the effect of overheat protector.It is said that in general, the electric current flowing through circuit is the biggest, or operating ambient temperature is the highest, macromolecule The movement time of PTC themistor is the shortest.Therefore, in the case of the electric current flowing through circuit is consistent, high molecular PTC temperature-sensitive electricity Resistance device has shorter movement time and a less aftercurrent when ambient temperature is higher, and ambient temperature (T) and macromolecule The resistance value (R) of PTC themistor is closely related.Up to the present, in order to reduce the remnants of high molecular PTC thermistor Electric current, reduces response time, and the relatively common method that people use has adds metallic particles in raw material, such as silver, tungsten, Copper, nickel, ferrum etc. do conductive agent, or improve the addition of conductive black in raw material, but these methods are the most not ideal enough, its All cannot realize the time under reach, reduce the purpose of aftercurrent.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of very sensitive to temperature, that response time is short macromolecule Thermal resistor, the present invention also aims to provide the macromolecular thermosensitive resistor material of described quick response on the heaters Application.
For realizing object above, the present invention is achieved by the following technical programs:
The critesistor of a kind of quick response, is made up of the raw material of following weight portion: polysiloxane 50～60 parts, poly- Carbonic ester 100～150 parts, epoxy resin 30～50 parts, PVP 150～200 parts, material with carbon element 15～30 parts, metallic fiber 5～15 Part, silicon dioxide 3～12 parts, fire retardant 0.1～0.8 part, antioxidant 0.1～0.3 part, ultraviolet (UV) resistant agent 0.1～0.3 part, Lubricant 0.3～0.5 part.
Preferably, the critesistor of described quick response, it is made up of the raw material of following weight portion: polysiloxane 50 Part, Merlon 120 parts, epoxy resin 32 parts, PVP 180 parts, material with carbon element 20 parts, metallic fiber 8 parts, silicon dioxide 6 parts, resistance Combustion agent 0.3 part, antioxidant 0.3 part, ultraviolet (UV) resistant agent 0.1 part, lubricant 0.3 part.
Preferably, described material with carbon element is CNT, graphite, Graphene, graphene oxide, carbon fibre, Nano carbon balls, acetylene One in black, white carbon black, activated carbon, porous carbon.
Preferably, the preparation method of the critesistor of described quick response, comprise the following steps:
(1) by chemical crosslink technique, PVP is prepared as sheet-like hydrous gel, after sheet-like hydrous gel dry solidification, in inertia Calcining 3～5h in gas, calcining heat is 400～600 DEG C, obtains carbon skeleton；
(2) organosiloxane, Merlon, epoxy resin are dissolved in organic solvent, at 90～100 DEG C, are incubated 0.5 ～2h, it is cooled to 50～60 DEG C, is then sequentially added into material with carbon element, metallic fiber, silicon dioxide, ball milling 1～2h, adds fire-retardant Agent, antioxidant, ultraviolet (UV) resistant agent and lubricant, ball milling 20～30min, obtain mixed resin；
(3) carbon skeleton is completely immersed in mixed resin, ultrasonic 5～10min, then stands 30～60min, take out carbon bone Frame, then irradiation 60～100kGy under conditions of radiation dose rate is 200Gy/s～500Gy/s, the heat quickly responded Quick resistance.
Preferably, described organic solvent is ethanol, N,N-dimethylacetamide, DMF, dimethyl Asia One or more in sulfone, oxolane, methyltetrahydrofuran, methyl isopropyl ketone.
The application of the critesistor of a kind of quick response, the critesistor of described quick response is on electric heater of air conditioner Application.
Beneficial effects of the present invention: the invention provides a kind of flat board critesistor containing carbon skeleton, by by gel Carbonization obtains carbon skeleton, and fills thermistor material in carbon skeleton, owing to carbon skeleton has excellent heat conductivity and conduction Property so that critesistor has uniform electric conductivity and heat conductivity, thus realizes the time under reach, reduces the mesh of aftercurrent , effective performance overcurrent protection or the effect of overheat protector；Merlon has good mechanical property, dimensional stability, Polysiloxane has good corrosion resistance；Material with carbon element not only has reinforcing effect to conducting polymer, strengthens temperature-sensitive electricity The mechanical strength of resistance, also has excellent heat conductivity and electric conductivity, promotes the safety of critesistor further.The heat of the present invention Sensitive resistor, with carbon as skeleton, runs through whole critesistor, the effective movement time shortened, and response rapidly, reduces remnants Electric current, improves the safety of critesistor, and has excellent mechanical property and corrosion resistance, applied widely.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention, Technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is the present invention one Divide embodiment rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making The every other embodiment obtained under creative work premise, broadly falls into the scope of protection of the invention.
Embodiment 1:
The preparation method of a kind of quickly critesistor of response being applied on electric heater of air conditioner, comprises the following steps:
(1) by chemical crosslink technique, 150 parts of PVP are prepared as sheet-like hydrous gel, after sheet-like hydrous gel dry solidification, Calcining 3h in protection gas argon, calcining heat is 600 DEG C, obtains carbon skeleton；
(2) 50 parts of organosiloxanes, 150 parts of Merlon, 30 parts of epoxy resin are dissolved in ethanol, N, N-dimethylacetamide In the mixed solution of amine, at 100 DEG C, it is incubated 0.5h, is cooled to 50～60 DEG C, is then sequentially added into 25 parts of Graphenes, 10 parts of silver Fiber, 12 parts of silicon dioxide, ball milling 1.5h, add 0.8 part of fire retardant, 0.1 part of antioxidant, 0.1 part of ultraviolet (UV) resistant agent and 0.5 part of lubricant, ball milling 20～30min, obtain mixed resin；
(3) carbon skeleton is completely immersed in mixed resin, ultrasonic 5～10min, then stands 30～60min, take out carbon bone Frame, then irradiation 60kGy under conditions of radiation dose rate is 200Gy/s, the critesistor quickly responded.
Embodiment 2:
The preparation method of a kind of quickly critesistor of response being applied on electric heater of air conditioner, comprises the following steps:
(1) by chemical crosslink technique, 180 parts of PVP are prepared as sheet-like hydrous gel, after sheet-like hydrous gel dry solidification, Calcining 4h in protection gas argon, calcining heat is 450 DEG C, obtains carbon skeleton；
(2) 50 parts of organosiloxanes, 120 parts of Merlon, 32 parts of epoxy resin are dissolved in dimethyl sulfoxide, at 90 DEG C Lower insulation 1h, is cooled to 50～60 DEG C, is then sequentially added into 20 parts of multi-walled carbon nano-tubes, 8 parts of nickel fibers, 6 parts of silicon dioxide, ball Mill 1.5h, adds 0.3 part of fire retardant, 0.3 part of antioxidant, 0.1 part of ultraviolet (UV) resistant agent and 0.3 part of lubricant, ball milling 20～ 30min, obtains mixed resin；
(3) carbon skeleton is completely immersed in mixed resin, ultrasonic 8min, then stands 30min, take out carbon skeleton, then exist Radiation dose rate is irradiation 80kGy under conditions of 400Gy/s, the critesistor quickly responded.
Embodiment 3:
The preparation method of a kind of quickly critesistor of response being applied on electric heater of air conditioner, comprises the following steps:
(1) by chemical crosslink technique, 180 parts of PVP are prepared as sheet-like hydrous gel, after sheet-like hydrous gel dry solidification, Calcining 4h in protection gas argon, calcining heat is 500 DEG C, obtains carbon skeleton；
(2) 60 parts of organosiloxanes, 100 parts of Merlon, 40 parts of epoxy resin are dissolved in dimethyl sulfoxide, oxolane Mixed solution in, at 90 DEG C, be incubated 2h, be cooled to 50～60 DEG C, be then sequentially added into 30 parts of carbon fibers, 5 parts of iron fibers, 3 Part silicon dioxide, ball milling 1h, add 0.1 part of fire retardant, 0.3 part of antioxidant, 0.3 part of ultraviolet (UV) resistant agent and 0.5 part of lubrication Agent, ball milling 20～30min, obtain mixed resin；
(3) carbon skeleton is completely immersed in mixed resin, ultrasonic 5～10min, then stands 30～60min, take out carbon bone Frame, then irradiation 100kGy under conditions of radiation dose rate is 500Gy/s, the critesistor quickly responded.
Embodiment 4:
The preparation method of a kind of quickly critesistor of response being applied on electric heater of air conditioner, comprises the following steps:
(1) by chemical crosslink technique, 200 parts of PVP are prepared as sheet-like hydrous gel, after sheet-like hydrous gel dry solidification, Calcining 5h in protection gas nitrogen, calcining heat is 400 DEG C, obtains carbon skeleton；
(2) 60 parts of organosiloxanes, 120 parts of Merlon, 50 parts of epoxy resin are dissolved in N,N-dimethylformamide and In the mixed solution of methyl isopropyl ketone, at 100 DEG C, it is incubated 1h, is cooled to 50～60 DEG C, is then sequentially added into 15 parts of copper nanometers Ball, 15 parts of metallic fibers, 5 parts of silicon dioxide, ball milling～2h, add 0.6 part of fire retardant, 0.3 part of antioxidant, 0.1 part resist Ultraviolet agent and 0.3 part of lubricant, ball milling 20～30min, obtain mixed resin；
(3) carbon skeleton is completely immersed in mixed resin, ultrasonic 5～10min, then stands 30～60min, take out carbon bone Frame, then irradiation 90kGy under conditions of radiation dose rate is 300Gy/s, the critesistor quickly responded.
To sum up, the embodiment of the present invention has the advantages that the thermal resistor of the present invention, with carbon as skeleton, runs through whole Individual critesistor, effectively shortens movement time, and response rapidly, reduces aftercurrent, improves the safety of critesistor Property, and there is excellent mechanical property and corrosion resistance, applied widely.
It should be noted that in this article, the relational terms of such as first and second or the like is used merely to a reality Body or operation separate with another entity or operating space, and deposit between not necessarily requiring or imply these entities or operating Relation or order in any this reality.And, term " includes ", " comprising " or its any other variant are intended to Comprising of nonexcludability, so that include that the process of a series of key element, method, article or equipment not only include that those are wanted Element, but also include other key elements being not expressly set out, or also include for this process, method, article or equipment Intrinsic key element.In the case of there is no more restriction, statement " including ... " key element limited, it is not excluded that Including process, method, article or the equipment of described key element there is also other identical element.
Above example only in order to technical scheme to be described, is not intended to limit；Although with reference to previous embodiment The present invention is described in detail, it will be understood by those within the art that: it still can be to aforementioned each enforcement Technical scheme described in example is modified, or wherein portion of techniques feature is carried out equivalent；And these amendment or Replace, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (6)

1. the critesistor of a quick response, it is characterised in that be made up of the raw material of following weight portion: polysiloxane 50 ～60 parts, Merlon 100～150 parts, epoxy resin 30～50 parts, PVP 150～200 parts, carbon-based material 15～30 parts, gold Belong to fiber 5～15 parts, silicon dioxide 3～12 parts, fire retardant 0.1～0.8 part, antioxidant 0.1～0.3 part, ultraviolet (UV) resistant agent 0.1～0.3 part, lubricant 0.3～0.5 part.
2. the critesistor of quickly response as claimed in claim 1, it is characterised in that be made up of the raw material of following weight portion: Polysiloxane 50 parts, Merlon 120 parts, epoxy resin 32 parts, PVP 180 parts, carbon-based material 20 parts, metallic fiber 8 Part, silicon dioxide 6 parts, fire retardant 0.3 part, antioxidant 0.3 part, ultraviolet (UV) resistant agent 0.1 part, lubricant 0.3 part.
3. the critesistor of quickly response as claimed in claim 2, it is characterised in that described carbon-based material be CNT, One in graphite, Graphene, graphene oxide, carbon fibre, Nano carbon balls, acetylene black, white carbon black, activated carbon, porous carbon.
4. the critesistor of quickly response as claimed in claim 3, it is characterised in that the critesistor of described quick response Preparation method, comprises the following steps:
(1) by chemical crosslink technique, PVP is prepared as sheet-like hydrous gel, after sheet-like hydrous gel dry solidification, at noble gas Middle calcining 3～5h, calcining heat is 400～600 DEG C, obtains carbon skeleton；
(2) organosiloxane, Merlon, epoxy resin are dissolved in organic solvent, at 90～100 DEG C, are incubated 0.5～2h, Be cooled to 50～60 DEG C, be then sequentially added into carbon-based material, metallic fiber, silicon dioxide, ball milling 1～2h, add fire retardant, Antioxidation just, ultraviolet (UV) resistant agent and lubricant, ball milling 20～30min, obtain mixed resin；
(3) carbon skeleton is completely immersed in mixed resin, ultrasonic 5～10min, then stands 30～60min, take out carbon skeleton, so After under conditions of radiation dose rate is 200Gy/s～500Gy/s irradiation 60～100kGy, the temperature-sensitive quickly responded electricity Resistance.
5. the critesistor of quickly response as claimed in claim 4, it is characterised in that described organic solvent is ethanol, N, N- In dimethyl acetylamide, N,N-dimethylformamide, dimethyl sulfoxide, oxolane, methyltetrahydrofuran, methyl isopropyl ketone One or more.
6. the application of the quickly critesistor of response as described in Claims 1 to 5 is arbitrary, it is characterised in that described soon The application on electric heater of air conditioner of the critesistor of speed response.
CN201610649737.5A 2016-08-09 2016-08-09 The critesistor of a kind of quick response and application thereof Pending CN106280365A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101038816A (en) * 2007-04-20 2007-09-19 哈尔滨工程大学 Method for preparing porous carbon/nano metal oxide composite material
CN104681222A (en) * 2015-02-04 2015-06-03 上海长园维安电子线路保护有限公司 Novel PTC thermosensitive element

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101038816A (en) * 2007-04-20 2007-09-19 哈尔滨工程大学 Method for preparing porous carbon/nano metal oxide composite material
CN104681222A (en) * 2015-02-04 2015-06-03 上海长园维安电子线路保护有限公司 Novel PTC thermosensitive element

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Application publication date: 20170104