CN106928611A - A kind of piezoresistor insulation cover of heatproof - Google Patents
A kind of piezoresistor insulation cover of heatproof Download PDFInfo
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- CN106928611A CN106928611A CN201710299466.XA CN201710299466A CN106928611A CN 106928611 A CN106928611 A CN 106928611A CN 201710299466 A CN201710299466 A CN 201710299466A CN 106928611 A CN106928611 A CN 106928611A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08L27/18—Homopolymers or copolymers or tetrafluoroethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- 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
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- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- 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
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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Abstract
The invention discloses a kind of piezoresistor insulation cover of heatproof, the piezoresistor insulation cover, by following material composition：ACM, polytetrafluoroethylene (PTFE), silicon rubber, polysulfide rubber, epoxy thickener, reinforcing fiber, precipitated calcium carbonate, ultraviolet screener, waterproofing agent, antioxidant, inorganic heat filling, accelerator, surfactant, fire retardant, it is main component that the good piezoresistor outer cover of temperature tolerance of the invention uses electro-insulating rubber, not only there is excellent insulating properties, also there is good waterproof and dampproof property and sealing, make it that also there is good heat conduction and heat radiation and high temperature resistant and anti-flammability by modified, resistor is avoided because of heating, meet the short circuit phenomenon that water burns and causes, extend the service life of piezoresistor.
Description
Technical field
The present invention relates to piezoresistor technical field, and in particular to a kind of piezoresistor insulation cover of heatproof.
Background technology
Piezo-resistance is a kind of resistance original paper of its resistance nonlinear change with added voltage change, i.e., electric when applying
When pressure value exceedes a certain threshold voltage, the vertiginous resistor of its resistance is a kind of self-resistance sensitive to applied voltage, and
Can with Reusability without damage electronic original part, also referred to as " surge absorber ", it be mainly used to protection electronic product or
Electronic original part is from switch or the influence being struck by lightning produced by hair.Piezo-resistance when not working, relative to protected electronics
For element, with impedance (several megohms) very high, and design circuit characteristic will not be changed, but when moment surge voltage goes out
Existing (when exceeding the breakdown voltage of piezo-resistance), the impedance of piezo-resistance will step-down, only several ohms cause circuit short
Road, so as to protect electronic product or electronic original part, piezo-resistance has that good non-thread characteristic, through-current capacity are big, residual voltage level is low,
Action is fast and the features such as without afterflow, in can be widely applied to electronic equipment, during it is image-sound systems, computer and communication equipment.
But, existing piezoresistor, its internal electric source caloric value is big, and big caloric value is continued in the course of the work will
Cause resistance value to become big, so that the temperature rise rate of change of power module steeply rises, and then have impact on the normal of piezoresistor
Work, additionally, when piezoresistor works in the too high air of humidity, it is easy to be short-circuited and cause piezoresistor to burn
Ruin, therefore, for piezoresistor, radiate, dehumidify it is particularly important.
The content of the invention
In view of the shortcomings of the prior art, the invention provides a kind of piezoresistor insulation cover, with excellent insulation
Property, waterproof and dampproof property, sealing, heat conduction and heat radiation, high temperature resistant and anti-flammability, it is to avoid resistor because of heating, meet water and burn and make
Into short circuit phenomenon, extend the service life of piezoresistor.
To realize object above, the present invention is achieved by the following technical programs：
The piezoresistor insulation cover of a kind of heatproof, by the material composition of following weight portion：ACM 40-
240 parts, polytetrafluoroethylene (PTFE) 40-100 parts, silicon rubber 40-100 parts, polysulfide rubber 20-30 parts, epoxy thickener 10-20 parts, increasing
Strong 15-28 parts of fiber, precipitated calcium carbonate 15-25 parts, ultraviolet screener 3-8 parts, waterproofing agent 3-8 parts, antioxidant 1-5 parts, nothing
15-25 parts, accelerator 1-3 parts, surfactant 5-10 parts, fire retardant 2-4 parts of machine heat filling.
Preferably, the piezoresistor insulation cover of the heatproof, by the material composition of following weight portion：Acrylate rubber
Glue 90-160 parts, polytetrafluoroethylene (PTFE) 60-80 parts, silicon rubber 60-80 parts, polysulfide rubber 22-28 parts, epoxy thickener 15-18 parts,
Reinforcing fiber 20-25 parts, precipitated calcium carbonate 18-24 parts, ultraviolet screener 3-5 parts, waterproofing agent 3-5 parts, antioxidant 1-3 parts,
Inorganic heat filling 18-20 parts, accelerator 1-3 parts, surfactant 6-8 parts, fire retardant 2-4 parts.
Preferably, the piezoresistor insulation cover of the heatproof, by the material composition of following weight portion：Acrylate rubber
It is 108 parts of glue, 60 parts of polytetrafluoroethylene (PTFE), 60 parts of silicon rubber, 25 parts of polysulfide rubber, 18 parts of epoxy thickener, 25 parts of reinforcing fiber, light
22 parts of matter calcium carbonate, 5 parts of ultraviolet screener, 5 parts of waterproofing agent, 3 parts of antioxidant, 20 parts of inorganic heat filling, 1 part of accelerator,
6 parts of surfactant, 4 parts of fire retardant.
Preferably, the ACM, polytetrafluoroethylene (PTFE), the weight ratio of silicon rubber are 1:1:1:~2:1:1.
Preferably, the epoxy thickener is the mixture of bisphenol-type epoxy resin and aliphatic epoxy resin.
Preferably, the inorganic heat filling is in zinc oxide, aluminum oxide, magnesia, carborundum, calcium carbide, titanium carbide
One or more.
Preferably, the particle diameter of the inorganic heat filling is 8-10 microns.
Preferably, the reinforcing fiber is glass fibre, asbestos fibre, ceramic fibre, polyurethane fiber, polyacrylic acid fourth
One or more in ester-styrene whisker, PHB whiskers.
Beneficial effects of the present invention：The invention provides a kind of good piezoresistor outer cover of temperature tolerance, the present invention is with rubber
Glue is main raw material(s), and rubber used has excellent insulating properties and water and oil-resistant；Inorganic heat conduction is added to fill out in rubber
Material increases the thermal conductivity factor of rubber, rubber is had electrical insulating property and the rapid function of heat conduction, also with resistance to well
High temperature and anti-flammability, while the also effect with damping, prevents aging；Reinforcing fiber increases exponentially the intensity of insulating boot,
Enhance intensity, the toughness of insulating boot；Epoxy thickener can improve the compatibility of heat filling and rubber, so as to improve rubber
Thermal conductivity and processing characteristics.It is main component that the good piezoresistor outer cover of temperature tolerance of the invention uses electro-insulating rubber, no
Only there is excellent insulating properties, also with good waterproof and dampproof property and sealing, make it that also there is good leading by modified
Hot thermal diffusivity and high temperature resistant and anti-flammability, it is to avoid resistor because of heating, meet short circuit phenomenon caused by water burns, extend pressure
The service life of sensitive resistor.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention 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 the premise of creative work, belongs to the scope of protection of the invention.
Embodiment 1：
A kind of piezoresistor insulation cover of heatproof, its preparation method is comprised the following steps：
(1) by 108 parts of ACM, 60 parts of polytetrafluoroethylene (PTFE), 60 parts of silicon rubber, 25 parts of addition banburyings of polysulfide rubber
In machine, then again by 20 parts of glass fibre, 5 parts of PHB whiskers, 22 parts of precipitated calcium carbonate, 10 parts of carborundum, 10 parts of mixing of titanium carbide
Added after uniform in banbury, knead 5-8min, then again by 15 parts of bisphenol-type epoxy resin, 3 parts of aliphatic epoxy resin, anti-
5 parts of ultraviolet agent, 5 parts of waterproofing agent, 3 parts of antioxidant, 1 part of accelerator, 6 parts of surfactant, 4 parts of fire retardant are well mixed,
Add in banbury, continue to knead 10-12min, then place 5 hours；
(2) rubber in step (1) is put into double screw extruder, extrusion molding obtains the piezoresistor of heatproof
Insulation cover.
Embodiment 2：
A kind of piezoresistor insulation cover of heatproof, its preparation method is comprised the following steps：
(1) by 40 ACMs part, 40 polytetrafluoroethylene (PTFE) part, 40 silicon rubber part, 22 parts of addition banburyings of polysulfide rubber
In machine, then again by 10 parts of glass fibre, 5 parts of polyurethane fiber, 13 parts of ceramic fibre, 24 parts of precipitated calcium carbonate, zinc oxide 10
Part, 5 parts of aluminum oxide, it is well mixed after add banbury, 5-8min is kneaded, then again by 10 parts of bisphenol-type epoxy resin, fat
5 parts of fat race epoxy resin, 3 parts of ultraviolet screener, 5 parts of waterproofing agent, 1 part of antioxidant, 3 parts of accelerator, 8 parts of surfactant,
2 parts of fire retardant is well mixed, and adds in banbury, continues to knead 10-12min, then places 5 hours；
(2) rubber in step (1) is put into double screw extruder, extrusion molding obtains the piezoresistor of heatproof
Insulation cover.
Embodiment 3：
A kind of piezoresistor insulation cover of heatproof, its preparation method is comprised the following steps：
(1) by 90 parts of ACM, 60 parts of polytetrafluoroethylene (PTFE), 60 parts of silicon rubber, 20 parts of addition banburyings of polysulfide rubber
In machine, 10 parts of PHB whiskers, 8 parts of ceramic fibre, 7 parts of asbestos fibre, 15 parts of precipitated calcium carbonate, 18 parts of aluminum oxide are mixed again then
Close it is uniform after add banbury, knead 5-8min, then again by 15 parts of bisphenol-type epoxy resin, 5 parts of aliphatic epoxy resin,
3 parts of ultraviolet screener, 8 parts of waterproofing agent, 3 parts of antioxidant, 1 part of accelerator, 5 parts of surfactant, 2 parts of mixing of fire retardant are equal
It is even, add in banbury, continue to knead 10-12min, then place 5 hours；
(2) rubber in step (1) is put into double screw extruder, extrusion molding obtains the piezoresistor of heatproof
Insulation cover.
Embodiment 4：
A kind of piezoresistor insulation cover of heatproof, its preparation method is comprised the following steps：
(1) by 160 parts of ACM, 80 parts of polytetrafluoroethylene (PTFE), 80 parts of silicon rubber, 30 parts of addition banburyings of polysulfide rubber
In machine, then again by 15 parts of glass fibre, butyl polyacrylate -5 parts of styrene whisker, 18 parts of precipitated calcium carbonate, carborundum 10
Added after part, 10 parts of titanium carbide are well mixed in banbury, knead 5-8min, then again by 7 parts of bisphenol-type epoxy resin, fat
3 parts of race's epoxy resin, 5 parts of ultraviolet screener, 3 parts of waterproofing agent, 5 parts of antioxidant, 3 parts of accelerator, 6 parts of surfactant, resistance
4 parts of combustion agent is well mixed, and adds in banbury, continues to knead 10-12min, then places 5 hours；
(2) rubber in step (1) is put into double screw extruder, extrusion molding obtains the piezoresistor of heatproof
Insulation cover.
Embodiment 5：
A kind of piezoresistor insulation cover of heatproof, its preparation method is comprised the following steps：
(1) it is 240 parts of ACM, 100 parts of polytetrafluoroethylene (PTFE), 100 parts of silicon rubber, 28 parts of additions of polysulfide rubber are close
In mill, then again by 5 parts of glass fibre, 5 parts of asbestos fibre, 5 parts of ceramic fibre, 25 parts of precipitated calcium carbonate, 10 parts of carborundum,
Added after 5 parts of calcium carbide, 10 parts of titanium carbide are well mixed in banbury, 5-8min is kneaded, then again by bisphenol-type epoxy resin
15 parts, 3 parts of aliphatic epoxy resin, 8 parts of ultraviolet screener, 5 parts of waterproofing agent, 1 part of antioxidant, 1 part of accelerator, surface-active
10 parts of agent, 4 parts of fire retardant are well mixed, and add in banbury, continue to knead 10-12min, then place 5 hours；
(2) rubber in step (1) is put into double screw extruder, extrusion molding obtains the piezoresistor of heatproof
Insulation cover.
Table 1：The performance test parameter of the piezoresistor insulation cover of embodiment 1~5
To sum up, the embodiment of the present invention has the advantages that：The good piezoresistor outer cover of temperature tolerance of the invention is adopted
It is main component with electro-insulating rubber, not only with excellent insulating properties, also with good waterproof and dampproof property and sealing, passes through
It is modified to make it that also there is good heat conduction and heat radiation and high temperature resistant and anti-flammability, it is to avoid resistor because of heating, meet water and burn
And the short circuit phenomenon for causing, extend the service life of piezoresistor.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or deposited between operating
In any this actual relation or order.And, term " including ", "comprising" or its any other variant be intended to
Nonexcludability is included, so that process, method, article or equipment including a series of key elements not only will including those
Element, but also other key elements including being not expressly set out, or also include being this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Also there is other identical element in process, method, article or equipment including the key element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention has been described in detail, it will be understood by those within the art that：It still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent to which part technical characteristic；And these modification or
Replace, do not make the spirit and scope of the essence disengaging various embodiments of the present invention technical scheme of appropriate technical solution.
Claims (8)
1. the overvoltage protection device insulation cover of a kind of heatproof, it is characterised in that by the material composition of following weight portion：Acrylic acid
40-240 parts of ester rubber, polytetrafluoroethylene (PTFE) 40-100 parts, silicon rubber 40-100 parts, polysulfide rubber 20-30 parts, epoxy thickener
10-20 parts, reinforcing fiber 15-28 parts, precipitated calcium carbonate 15-25 parts, ultraviolet screener 3-8 parts, waterproofing agent 3-8 parts, it is anti-oxidant
Agent 1-5 parts, inorganic heat filling 15-25 parts, accelerator 1-3 parts, surfactant 5-10 parts, fire retardant 2-4 parts.
2. the overvoltage protection device insulation cover of heatproof as claimed in claim 1, it is characterised in that by the thing of following weight portion
Matter is constituted：ACM 90-160 parts, polytetrafluoroethylene (PTFE) 60-80 parts, silicon rubber 60-80 parts, polysulfide rubber 22-28 parts,
Epoxy thickener 15-18 parts, reinforcing fiber 20-25 parts, precipitated calcium carbonate 18-24 parts, ultraviolet screener 3-5 parts, waterproofing agent 3-5
Part, antioxidant 1-3 parts, inorganic heat filling 18-20 parts, accelerator 1-3 parts, surfactant 6-8 parts, fire retardant 2-4 parts.
3. the overvoltage protection device insulation cover of heatproof as claimed in claim 2, it is characterised in that by the thing of following weight portion
Matter is constituted：108 parts of ACM, 60 parts of polytetrafluoroethylene (PTFE), 60 parts of silicon rubber, 25 parts of polysulfide rubber, epoxy thickener 18
Part, 25 parts of reinforcing fiber, 22 parts of precipitated calcium carbonate, 5 parts of ultraviolet screener, 5 parts of waterproofing agent, 3 parts of antioxidant, inorganic heat conduction are filled out
20 parts of material, 1 part of accelerator, 6 parts of surfactant, 4 parts of fire retardant.
4. the overvoltage protection device insulation cover of heatproof as claimed in claim 3, it is characterised in that the overvoltage of the heatproof
Protector insulation cover, the material composition by following weight portion is preferred, the ACM, polytetrafluoroethylene (PTFE), silicon rubber
The weight ratio of glue is 1:1:1:~2.4:1:1.
5. the overvoltage protection device insulation cover of heatproof as claimed in claim 4, it is characterised in that the epoxy thickener is
The mixture of bisphenol-type epoxy resin and aliphatic epoxy resin.
6. the overvoltage protection device insulation cover of heatproof as claimed in claim 5, it is characterised in that the inorganic heat filling
It is one or more in zinc oxide, aluminum oxide, magnesia, carborundum, calcium carbide, titanium carbide.
7. the overvoltage protection device insulation cover of heatproof as claimed in claim 6, it is characterised in that the inorganic heat filling
Particle diameter be 8-10 microns.
8. the overvoltage protection device insulation cover of heatproof as claimed in claim 7, it is characterised in that the reinforcing fiber is glass
One kind in glass fiber, asbestos fibre, ceramic fibre, polyurethane fiber, butyl polyacrylate-styrene whisker, PHB whiskers or
It is various.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710299466.XA CN106928611A (en) | 2017-04-30 | 2017-04-30 | A kind of piezoresistor insulation cover of heatproof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710299466.XA CN106928611A (en) | 2017-04-30 | 2017-04-30 | A kind of piezoresistor insulation cover of heatproof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109265890A (en) * | 2018-09-05 | 2019-01-25 | 安徽来福电子科技有限公司 | A kind of high-cooling property resistor inner filling material |
| CN109385066A (en) * | 2018-09-05 | 2019-02-26 | 安徽来福电子科技有限公司 | A kind of resistor inner filling material being effectively isolated electric radiation |
| CN109437833A (en) * | 2018-10-10 | 2019-03-08 | 安徽科比电子科技有限公司 | One kind being used for impact resistance aluminum-housed resistor inner filling material |
| CN109438890A (en) * | 2018-10-10 | 2019-03-08 | 安徽科比电子科技有限公司 | A kind of resistor inner filling material being effectively isolated electric radiation |
| CN109851986A (en) * | 2018-12-27 | 2019-06-07 | 宁波英泰克照明有限公司 | A kind of thermally conductive phenolic resin and preparation method thereof and its manufactured lampshade |
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| CN1254248A (en) * | 1999-11-19 | 2000-05-24 | 北京化工大学 | Flexible rubber-plastic planar heating body and its preparation method |
| CN105001646A (en) * | 2015-07-06 | 2015-10-28 | 安徽创宇电力设备有限公司 | Heat-resistant, thermally-conductive and insulating shield |
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| CN106633427A (en) * | 2016-11-23 | 2017-05-10 | 华北科技学院 | Insulating outer cover for current transformer secondary over-voltage protector |
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| CN1254248A (en) * | 1999-11-19 | 2000-05-24 | 北京化工大学 | Flexible rubber-plastic planar heating body and its preparation method |
| CN105001646A (en) * | 2015-07-06 | 2015-10-28 | 安徽创宇电力设备有限公司 | Heat-resistant, thermally-conductive and insulating shield |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109265890A (en) * | 2018-09-05 | 2019-01-25 | 安徽来福电子科技有限公司 | A kind of high-cooling property resistor inner filling material |
| CN109385066A (en) * | 2018-09-05 | 2019-02-26 | 安徽来福电子科技有限公司 | A kind of resistor inner filling material being effectively isolated electric radiation |
| CN109437833A (en) * | 2018-10-10 | 2019-03-08 | 安徽科比电子科技有限公司 | One kind being used for impact resistance aluminum-housed resistor inner filling material |
| CN109438890A (en) * | 2018-10-10 | 2019-03-08 | 安徽科比电子科技有限公司 | A kind of resistor inner filling material being effectively isolated electric radiation |
| CN109851986A (en) * | 2018-12-27 | 2019-06-07 | 宁波英泰克照明有限公司 | A kind of thermally conductive phenolic resin and preparation method thereof and its manufactured lampshade |
| CN109851986B (en) * | 2018-12-27 | 2021-10-29 | 宁波英泰克照明有限公司 | Heat-conducting phenolic resin, preparation method thereof and lampshade made of heat-conducting phenolic resin |
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Application publication date: 20170707 |