CN112063067A - Flexible heating cable PVC cladding, preparation method and application thereof, and flexible heating cable - Google Patents
Flexible heating cable PVC cladding, preparation method and application thereof, and flexible heating cable Download PDFInfo
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- 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
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- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
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- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
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Abstract
The invention relates to a flexible heating cable PVC cladding and a preparation method and application thereof.
Description
Technical Field
The invention relates to the technical field of electric heating equipment, in particular to a flexible heating cable PVC cladding and a preparation method and application thereof.
Background
The flexible heating cable is commonly used for flexible heating appliances due to good flexibility, for example, in an electric blanket, the common flexible heating cable comprises a spiral heating cable, a double-layer spiral heating cable and the like, and the principle is that an internal heating wire generates heat after being electrified, so that the electric blanket has a heating function.
However, the flexible heating cable generally has only a heating function, and the electromagnetic radiation generated by the flexible heating cable is harmful to human body.
Disclosure of Invention
The invention aims to provide a PVC (polyvinyl chloride) cladding for a flexible heating cable, which is used for cladding the outer side of the flexible heating cable, can shield electromagnetic radiation generated by the flexible heating cable and can release far infrared rays and negative oxygen ions beneficial to a human body.
In order to achieve the purpose, the invention provides a flexible heating cable PVC cladding which is prepared from graphene powder, anion powder, PVC resin and auxiliary materials.
Wherein, the auxiliary materials include: dioctyl ester, chlorinated paraffin, calcium carbonate, tribasic lead sulfate, dibasic lead stearate, stearic acid, calcium stearate and a dispersing agent, wherein the dispersing agent can be selected from polyvinyl alcohol dispersing agents, and the function of the dispersing agent is to enable all the components to be dispersed more uniformly.
The PVC cladding of the flexible heating cable comprises the following components in parts by weight: 100 parts of PVC resin, 0.1-10 parts of graphene powder, 0.1-10 parts of anion powder, 1-100 parts of dioctyl ester, 10 parts of chlorinated paraffin, 1-20 parts of calcium carbonate, 5 parts of tribasic lead sulfate, 3 parts of dibasic lead stearate, 1 part of stearic acid, 0.3 part of calcium stearate and 1.5 parts of dispersing agent.
The graphene powder comprises 2 parts by weight of graphene powder, 2 parts by weight of anion powder, 47 parts by weight of dioctyl ester and 5 parts by weight of calcium carbonate.
Wherein the negative oxygen ion powder is crystal tourmaline powder.
The invention also provides a preparation method of the PVC cladding of the flexible heating cable, which comprises the following steps:
s1, inputting the graphene powder, the anion powder, the PVC resin and the auxiliary materials into a PVC granulator according to the formula ratio, and heating and stirring the materials to prepare granules for later use;
s2, coating the granular material in the step S1 on the outer side of the flexible heating cable through an extruder.
Wherein, the heating temperature in step S1 is 170-210 ℃, the stirring time is 10-20 minutes, and the stirring speed is 300-800 rpm.
The invention also provides application of the PVC cladding of the flexible heating cable, namely the PVC cladding of the flexible heating cable is used for cladding the outer side of the insulating layer of the flexible heating cable, and the flexible heating cable can be a double-layer spiral heating cable.
And a flexible heating cable of the above-mentioned flexible heating cable PVC cladding of outside cladding.
The invention has the beneficial effects that:
1. through the flexible heating cable PVC cladding of making each component in proportion in the flexible heating cable outside, can release when the flexible heating cable circular telegram generates heat, the beneficial far infrared of human body, negative oxygen ion can also be shielded to the electromagnetic radiation that the heating cable released simultaneously, reduce the injury to the human body, in addition the thermal conductivity of the cable that generates heat of still can increasing.
2. By controlling the proportion of the total amount of the graphene powder, the negative oxygen ion powder and the calcium carbonate in the formula in the total material of the PVC cladding, the hardness of the PVC cladding of the prepared flexible heating cable can adapt to the traditional PVC extrusion cladding process, so that the conventional flexible heating cable can still keep good flexibility after being coated by the PVC cladding provided by the invention.
3. By controlling the dosage of the graphene powder, the negative oxygen ion powder and the calcium carbonate in the formula, the content of the graphene and the negative oxygen ions in the PVC cladding of the manufactured flexible heating cable is in a proper range, and the effects of releasing sufficient negative oxygen ion powder, far infrared rays and the like can be achieved through the least dosage of the negative oxygen ion powder and the graphene powder, so that the consumption of raw materials is reduced, and meanwhile, the potential problem that the resistance of the PVC cladding is reduced due to too much added graphene, the surface layer is electrified, and the danger of electric shock of personnel is easily caused is also overcome.
4. The production process is simple and has wide adaptability, and one set of production process can be used for various heating cables and flexible heating appliances using the heating cables, so that the flexible heating appliances can release negative oxygen ions, far infrared rays and the like.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a flow chart of the manufacturing process of the PVC cladding for flexible heating cables provided by the invention.
Detailed Description
The technical solution in the embodiments of the present invention is clearly and completely described below with reference to the drawings in the embodiments of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
The PVC cladding for the flexible heating cable is formed by heating, stirring and granulating graphene powder, anion powder, PVC resin and auxiliary materials, and then extruding, wherein the graphene powder and the anion powder are added on the basis of the existing PVC cladding, so that the effects of releasing far infrared rays, shielding electromagnetic radiation of the flexible heating cable and increasing heat transfer efficiency can be achieved by adding the graphene powder, and the PVC cladding has an antibacterial effect and can release negative oxygen ions beneficial to a human body by adding the anion powder and can more efficiently release various substances under the action of heat generated by the flexible heating cable during working after being coated on the outer layer of the flexible heating cable;
wherein the auxiliary materials comprise dioctyl ester, chlorinated paraffin, calcium carbonate, tribasic lead sulfate, dibasic lead stearate, stearic acid, calcium stearate and a dispersing agent.
The components by weight are as follows: 100 parts of PVC resin, 0.1-10 parts of graphene powder, 0.1-10 parts of anion powder, 1-100 parts of dioctyl ester, 10 parts of chlorinated paraffin, 1-20 parts of calcium carbonate, 5 parts of tribasic lead sulfate, 3 parts of dibasic lead stearate, 1 part of stearic acid, 0.3 part of calcium stearate and 1.5 parts of dispersing agent.
Wherein, the dispersant can be polyvinyl alcohol dispersant, and the function of the dispersant is to make the components disperse more uniformly.
The above-mentioned component materials except graphene powder, anion powder and dispersant are conventional production components for PVC production, but the inventor finds out through simple granulation after mixing conventional materials with graphene, anion powder and dispersant in a conventional proportion, that the flexibility of the prepared PVC cladding is reduced, the hardness is increased, and the problem of PVC cladding fracture is easy to occur when bending is carried out (see comparative example 1), so the inventor finds out through experiments that the use amount of calcium carbonate needs to be reduced, and finds out that the problem can be avoided by controlling the total weight of calcium carbonate, graphene powder and anion powder to be 3-6% of the weight of all the components.
Meanwhile, as shown in fig. 1, the invention also provides a preparation method of the flexible heating cable PVC cladding, which comprises the following steps:
s1, inputting the graphene powder, the anion powder, the PVC resin and the auxiliary material into a PVC granulator according to the formula ratio, and preparing granules for later use by heating and stirring, wherein the heating temperature is 170-210 ℃, the stirring time is 10-20 minutes, and the stirring speed is 300-800 revolutions per minute.
S2, coating the PVC granules obtained in the step S1 on the outer side of the flexible heating cable through an extruder, and the preparation process is simple.
The PVC cladding of the flexible heating cable provided by the invention is applied to the heating wire in the flexible heating appliance, namely the PVC cladding is coated on the outer side of the flexible heating cable, for example, the outer side of a double-layer spiral heating cable coated in an electric blanket.
The invention also provides a flexible heating cable coated with the PVC coating, namely, the flexible heating cable PVC coating is coated on the outer side of the existing heating cable to form a heating cable with the functions of releasing negative ions, far infrared rays, shielding electromagnetic radiation and the like.
Example 1
A flexible heating cable PVC cladding comprises the following components in parts by weight: 100 parts of PVC resin, 2 parts of graphene powder, 2 parts of anion powder, 47 parts of dioctyl ester, 10 parts of chlorinated paraffin, 5 parts of calcium carbonate, 5 parts of tribasic lead sulfate, 3 parts of dibasic lead stearate, 1 part of stearic acid, 0.3 part of calcium stearate and 1.5 parts of dispersing agent.
The preparation method comprises the following steps:
s1, inputting the graphene powder, the anion powder, the PVC resin and the auxiliary materials into a PVC granulator according to the formula ratio, heating at 200 ℃, stirring for 20 minutes, and preparing into granules for later use, wherein the stirring speed is 800 revolutions per minute;
s2, coating the granular material in the step S1 on the outer side of the double-layer spiral heating cable through an extruder.
The heating cable prepared by the preparation method is sent to Beijing Zhongkou optical analysis chemical technology research institute (materials laboratory), a proper amount of effective parts of the sample are taken to be tested on a Raman spectrometer, and the detection results of the negative ions and the far infrared release rate in the heating state are shown in the following table:
| test item (heating state) | Test results | Unit of |
| Concentration of negative ions | 34500 | Per cubic centimeter |
| Far infrared normal emissivity | 0.91 | --- |
The PVC cladding of the flexible heating cable manufactured by the components of the embodiment in proportion has a PVC resistance value of 70K omega, a proper resistance value, an expected electromagnetic radiation shielding effect, a thermal conductivity increased by more than 60 percent (compared with a common double-layer spiral heating cable), high negative ion release concentration, high far infrared normal emissivity, good flexibility and no fracture during bending.
Example 2
A flexible heating cable PVC cladding comprises the following components in parts by weight: 100 parts of PVC resin, 1.5 parts of graphene powder, 1.5 parts of anion powder, 45 parts of dioctyl ester, 10 parts of chlorinated paraffin, 8 parts of calcium carbonate, 5 parts of tribasic lead sulfate, 3 parts of dibasic lead stearate, 1 part of stearic acid, 0.3 part of calcium stearate and 1.5 parts of dispersing agent.
The preparation method comprises the following steps:
s1, inputting the graphene powder, the anion powder, the PVC resin and the auxiliary materials into a PVC granulator according to the formula ratio, heating at 200 ℃, stirring for 20 minutes, and preparing into granules for later use, wherein the stirring speed is 700 revolutions per minute;
s2, coating the granular material in the step S1 on the outer side of the double-layer spiral heating cable through an extruder.
The heating cable prepared by the preparation method is sent to Beijing Zhongkou optical analysis chemical technology research institute (materials laboratory), a proper amount of effective parts of the sample are taken to be tested on a Raman spectrometer, and the detection results of the negative ions and the far infrared release rate in the heating state are shown in the following table:
the PVC cladding of the flexible heating cable manufactured by the components of the embodiment has the advantages that the PVC resistance value is 60K omega, the resistance value is lower, the shielding effect on electromagnetic radiation reaches the expected value, the thermal conductivity is increased by 50 percent (compared with the common double-layer spiral heating cable), the anion release concentration is high, the far infrared normal emissivity is high, the flexibility is good, and the fracture condition can not be generated during bending.
Example 3
A flexible heating cable PVC cladding comprises the following components in parts by weight: 100 parts of PVC resin, 2.5 parts of graphene powder, 2.3 parts of anion powder, 50 parts of dioctyl ester, 10 parts of chlorinated paraffin, 4 parts of calcium carbonate, 5 parts of tribasic lead sulfate, 3 parts of dibasic lead stearate, 1 part of stearic acid, 0.3 part of calcium stearate and 1.5 parts of dispersing agent.
The preparation method comprises the following steps:
s1, inputting the graphene powder, the anion powder, the PVC resin and the auxiliary materials into a PVC granulator according to the formula ratio, heating at 210 ℃, stirring for 15 minutes, and preparing into granules for later use, wherein the stirring speed is 700 revolutions per minute;
s2, coating the granular material in the step S1 on the outer side of the double-layer spiral heating cable through an extruder.
The heating cable prepared by the preparation method is sent to Beijing Zhongkou optical analysis chemical technology research institute (materials laboratory), a proper amount of effective parts of the sample are taken to be tested on a Raman spectrometer, and the detection results of the negative ions and the far infrared release rate in the heating state are shown in the following table:
the PVC cladding of the flexible heating cable manufactured by the components of the embodiment has a PVC resistance value of 55K omega and a lower resistance value, the shielding effect on electromagnetic radiation reaches an expected value, the thermal conductivity is increased by about 55 percent (compared with the common double-layer spiral heating cable), the anion release concentration is high, the far infrared normal emissivity is high, the PVC cladding has good flexibility, and the PVC cladding cannot break when being bent.
Comparative example 1
A flexible heating cable PVC cladding comprises the following components in parts by weight: 100 parts of PVC resin, 0.15 part of graphene powder, 0.5 part of anion powder, 20 parts of dioctyl ester, 10 parts of chlorinated paraffin, 20 parts of calcium carbonate, 5 parts of tribasic lead sulfate, 3 parts of dibasic lead stearate, 1 part of stearic acid, 0.3 part of calcium stearate and 1.5 parts of dispersing agent.
The preparation method comprises the following steps:
s1, inputting the graphene powder, the anion powder, the PVC resin and the auxiliary materials into a PVC granulator according to the formula ratio, heating at 200 ℃, stirring for 10 minutes, and preparing into granules for later use, wherein the stirring speed is 500 revolutions per minute;
s2, coating the granular material in the step S1 on the outer side of the double-layer spiral heating cable through an extruder.
The heating cable prepared by the preparation method is sent to Beijing Zhongkou optical analysis chemical technology research institute (materials laboratory), a proper amount of effective parts of the sample are taken to be subjected to a Raman spectrometer on-machine test, and the detection results of the negative ions and the far infrared release rate in the heating state are shown in table 1:
| test item (heating state) | Test results | Unit of |
| Concentration of negative ions | 1100 | Per cubic centimeter |
| Far infrared normal emissivity | 0.05 | --- |
The PVC cladding of the flexible heating cable in the comparative example has low resistance value, does not have the function of effectively shielding electromagnetic radiation, has low release amount of negative oxygen ions, low far infrared emission normal refractive index and insignificant increase of thermal conductivity, and easily generates the problem of electric shock caused by fracture because the total dosage of calcium carbonate, graphene powder and negative ion powder is too high (12.7%).
Comparative example 2
A flexible heating cable PVC cladding comprises the following components in parts by weight: 100 parts of PVC resin, 0.3 part of graphene powder, 0.5 part of anion powder, 20 parts of dioctyl ester, 10 parts of chlorinated paraffin, 15 parts of calcium carbonate, 5 parts of tribasic lead sulfate, 3 parts of dibasic lead stearate, 1 part of stearic acid, 0.3 part of calcium stearate and 1.5 parts of dispersing agent.
The preparation method comprises the following steps:
s1, inputting the graphene powder, the anion powder, the PVC resin and the auxiliary materials into a PVC granulator according to the formula ratio, heating at 200 ℃, stirring for 15 minutes, and preparing into granules for later use, wherein the stirring speed is 400 revolutions per minute;
s2, coating the granular material in the step S1 on the outer side of the double-layer spiral heating cable through an extruder.
The heating cable prepared by the preparation method is sent to Beijing Zhongkou optical analysis chemical technology research institute (materials laboratory), a proper amount of effective parts of the sample are taken to be subjected to a Raman spectrometer on-machine test, and the detection results of the negative ions and the far infrared release rate in the heating state are shown in table 1:
| test item (heating state) | Test results | Unit of |
| Concentration of negative ions | 300 | Per cubic centimeter |
| Far infrared normal emissivity | 0.1 | --- |
In the comparative example, the resistance value of the PVC cladding of the flexible heating cable is 150 MOmega, the resistance value is overlarge, the electromagnetic radiation shielding effect is limited, the thermal conductivity is not obviously increased, and the release amount of negative oxygen ions is very little.
Comparative example 3
A flexible heating cable PVC cladding comprises the following components in parts by weight: 100 parts of PVC resin, 5 parts of graphene powder, 1 part of anion powder, 50 parts of dioctyl ester, 10 parts of chlorinated paraffin, 10 parts of calcium carbonate, 5 parts of tribasic lead sulfate, 3 parts of dibasic lead stearate, 1 part of stearic acid, 0.3 part of calcium stearate and 1.5 parts of dispersing agent.
The preparation method comprises the following steps:
s1, inputting the graphene powder, the anion powder, the PVC resin and the auxiliary materials into a PVC granulator according to the formula ratio, heating at 210 ℃, and stirring for 10 minutes to prepare granules for later use, wherein the stirring speed is 600 revolutions per minute;
s2, coating the granular material in the step S1 on the outer side of the double-layer spiral heating cable through an extruder.
The heating cable prepared by the preparation method is sent to Beijing Zhongkou optical analysis chemical technology research institute (materials laboratory), a proper amount of effective parts of the sample are taken to be subjected to a Raman spectrometer on-machine test, and the detection results of the negative ions and the far infrared release rate in the heating state are shown in table 1:
| test item (heating state) | Test results | Unit of |
| Concentration of negative ions | 700 | Per cubic centimeter |
| Far infrared normal emissivity | 2.1 | --- |
In the comparative example, the resistance value of the PVC measured by increasing the amount of graphene powder was 300 Ω, the resistance value was extremely low, the electromagnetic radiation shielding effect was good, and the thermal conductivity was significantly increased, but the electric shock hazard was likely to occur due to the extremely low resistance value, and the anion emission concentration was extremely low due to the reduced amount of anion powder.
Comparative example 4
A flexible heating cable PVC cladding comprises the following components in parts by weight: 100 parts of PVC resin, 2 parts of graphene powder, 5 parts of anion powder, 47 parts of dioctyl ester, 10 parts of chlorinated paraffin, 15 parts of calcium carbonate, 5 parts of tribasic lead sulfate, 3 parts of dibasic lead stearate, 1 part of stearic acid, 0.3 part of calcium stearate and 1.5 parts of dispersing agent.
The preparation method comprises the following steps:
s1, inputting the graphene powder, the anion powder, the PVC resin and the auxiliary materials into a PVC granulator according to the formula ratio, heating at 200 ℃, stirring for 20 minutes, and preparing into granules for later use, wherein the stirring speed is 800 revolutions per minute;
s2, coating the granular material in the step S1 on the outer side of the double-layer spiral heating cable through an extruder.
The heating cable prepared by the preparation method is sent to Beijing Zhongkou optical analysis chemical technology research institute (materials laboratory), a proper amount of effective parts of the sample are taken to be tested on a Raman spectrometer, and the detection results of the negative ions and the far infrared release rate in the heating state are shown in the following table:
| test item (heating state) | Test results | Unit of |
| Concentration of negative ions | 3200 | Per cubic centimeter |
| Far infrared normal emissivity | 0.89 | --- |
The comparative example obviously increases the dosage of the anion powder on the basis of the example 1, simultaneously increases the dosage of the calcium carbonate, and the other components and the production flow are consistent with the example 1, but the release concentration of the anions is obviously reduced in contrast to the release concentration of the anions in the example 1, and the higher calcium chloride content is considered to prevent the effective release of the anion powder.
In summary, the PVC claddings for flexible heating cables made by the formulations of examples 1 to 3 have suitable resistance values, can effectively release far infrared rays and negative oxygen ions, and can increase thermal conductivity, and at the same time, can not be broken by bending, i.e. the total weight of calcium carbonate, graphene powder and negative ion powder is controlled to be 3-6% of the total weight of all components, and the ratio of calcium carbonate, graphene powder and negative ion powder is 1-2: 1-2: 1.5-6.
In contrast, in comparative example 4, if the content of calcium chloride is high, the flexibility of the PVC cladding is reduced, and the PVC cladding is easy to break, and meanwhile, the high content of calcium chloride can prevent the negative oxygen ions from being effectively released.
It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides a flexible heating cable PVC covering which characterized in that, flexible heating cable PVC covering is made by graphite alkene powder, anion powder, PVC resin and auxiliary material.
2. The flexible heat-generating cable PVC cladding as claimed in claim 1, wherein said auxiliary material comprises: dioctyl ester, chlorinated paraffin, calcium carbonate, tribasic lead sulfate, dibasic lead stearate, stearic acid and calcium stearate, and a dispersing agent.
3. The flexible heating cable PVC cladding according to claim 2, wherein the flexible heating cable PVC cladding comprises the following components in parts by weight: 100 parts of PVC resin, 0.1-10 parts of graphene powder, 0.1-10 parts of anion powder, 1-100 parts of dioctyl ester, 10 parts of chlorinated paraffin, 1-20 parts of calcium carbonate, 5 parts of tribasic lead sulfate, 3 parts of dibasic lead stearate, 1 part of stearic acid, 0.3 part of calcium stearate and 1.5 parts of dispersing agent.
4. The flexible heating cable PVC cladding as claimed in claim 3, wherein the graphene powder is used in an amount of 2 parts by weight, the negative ion powder is used in an amount of 2 parts by weight, the dioctyl ester is used in an amount of 47 parts by weight, and the calcium carbonate is used in an amount of 5 parts by weight.
5. The PVC cladding for flexible heating cables as claimed in any one of claims 1 to 4, wherein the negative oxygen ion powder is crystalline tourmaline powder.
6. The method for preparing a flexible heating cable PVC cladding as claimed in any one of claims 1 to 5, comprising the following steps:
s1, inputting the graphene powder, the anion powder, the PVC resin and the auxiliary materials into a PVC granulator according to the formula ratio, and heating and stirring the materials to prepare granules for later use;
s2, coating the granular material in the step S1 on the outer side of the flexible heating cable through an extruder.
7. The method as claimed in claim 6, wherein the heating temperature in step S1 is 170 ℃ to 210 ℃, the stirring time is 10-20 minutes, and the stirring speed is 300 rpm to 800 rpm.
8. Use of a flexible heat-generating cable PVC coating as claimed in any one of claims 1 to 5, for coating the outside of the insulation layer of a flexible heat-generating cable.
9. Use of a flexible heat generating cable PVC cladding according to claim 8, characterized in that the flexible heat generating cable is a double layer spiral heat generating cable.
10. A flexible heat-generating cable, characterized in that the flexible heat-generating cable is externally coated with the PVC coating of any one of claims 1 to 5.
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| CN202010744850.8A CN112063067B (en) | 2020-07-29 | 2020-07-29 | Flexible heating cable PVC cladding, preparation method and application thereof, and flexible heating cable |
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| CN202010744850.8A CN112063067B (en) | 2020-07-29 | 2020-07-29 | Flexible heating cable PVC cladding, preparation method and application thereof, and flexible heating cable |
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| CN112063067B CN112063067B (en) | 2022-04-26 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101550243A (en) * | 2008-04-03 | 2009-10-07 | 张进 | Additive combination used for manufacturing wire sheath and wire made from additive combination and electric mattress comprising wire |
| CA3002614A1 (en) * | 2015-10-23 | 2017-04-27 | Chemson Polymer-Additive Ag | Vinyl chloride polymers and compositions for additive manufacturing |
| CN108192327A (en) * | 2018-02-05 | 2018-06-22 | 杭州白熊科技有限公司 | Anion Flexible graphene composite electrothermal material, anion Flexible graphene electric heating composite membrane and preparation method and application |
| CN108250629A (en) * | 2018-02-08 | 2018-07-06 | 合肥市大卓电力有限责任公司 | It is a kind of for insulating radiation material of electric heater housing and preparation method thereof |
| CN110242446A (en) * | 2019-05-30 | 2019-09-17 | 辽宁兰晶科技有限公司 | A kind of quantum graphene fuel oil energizer and preparation method thereof |
| CN110283448A (en) * | 2019-05-30 | 2019-09-27 | 辽宁兰晶科技有限公司 | A kind of quantum graphene air filter synergistic device and preparation method thereof |
-
2020
- 2020-07-29 CN CN202010744850.8A patent/CN112063067B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101550243A (en) * | 2008-04-03 | 2009-10-07 | 张进 | Additive combination used for manufacturing wire sheath and wire made from additive combination and electric mattress comprising wire |
| CA3002614A1 (en) * | 2015-10-23 | 2017-04-27 | Chemson Polymer-Additive Ag | Vinyl chloride polymers and compositions for additive manufacturing |
| CN108192327A (en) * | 2018-02-05 | 2018-06-22 | 杭州白熊科技有限公司 | Anion Flexible graphene composite electrothermal material, anion Flexible graphene electric heating composite membrane and preparation method and application |
| CN108250629A (en) * | 2018-02-08 | 2018-07-06 | 合肥市大卓电力有限责任公司 | It is a kind of for insulating radiation material of electric heater housing and preparation method thereof |
| CN110242446A (en) * | 2019-05-30 | 2019-09-17 | 辽宁兰晶科技有限公司 | A kind of quantum graphene fuel oil energizer and preparation method thereof |
| CN110283448A (en) * | 2019-05-30 | 2019-09-27 | 辽宁兰晶科技有限公司 | A kind of quantum graphene air filter synergistic device and preparation method thereof |
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