CN113150447A - Heat-resistant insulating polymer composite material and preparation method thereof - Google Patents
Heat-resistant insulating polymer composite material and preparation method thereof Download PDFInfo
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- CN113150447A CN113150447A CN202110557249.2A CN202110557249A CN113150447A CN 113150447 A CN113150447 A CN 113150447A CN 202110557249 A CN202110557249 A CN 202110557249A CN 113150447 A CN113150447 A CN 113150447A
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- 239000002131 composite material Substances 0.000 title claims abstract description 28
- 229920000642 polymer Polymers 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 6
- 239000004743 Polypropylene Substances 0.000 claims abstract description 90
- 239000002245 particle Substances 0.000 claims abstract description 55
- 238000002156 mixing Methods 0.000 claims abstract description 41
- 229920002635 polyurethane Polymers 0.000 claims abstract description 29
- 239000004814 polyurethane Substances 0.000 claims abstract description 29
- 239000000853 adhesive Substances 0.000 claims abstract description 25
- 230000001070 adhesive effect Effects 0.000 claims abstract description 25
- 229920001971 elastomer Polymers 0.000 claims abstract description 23
- 239000005060 rubber Substances 0.000 claims abstract description 23
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 22
- 229910001845 yogo sapphire Inorganic materials 0.000 claims abstract description 22
- -1 polypropylene Polymers 0.000 claims abstract description 21
- 229920001155 polypropylene Polymers 0.000 claims abstract description 21
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 239000002114 nanocomposite Substances 0.000 claims description 24
- 238000006243 chemical reaction Methods 0.000 claims description 18
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 17
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 16
- 239000000945 filler Substances 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- 239000011230 binding agent Substances 0.000 claims description 4
- 238000007334 copolymerization reaction Methods 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 239000011231 conductive filler Substances 0.000 claims 1
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 239000013078 crystal Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 239000002667 nucleating agent Substances 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 229920006124 polyolefin elastomer Polymers 0.000 abstract 3
- BYFGZMCJNACEKR-UHFFFAOYSA-N aluminium(i) oxide Chemical compound [Al]O[Al] BYFGZMCJNACEKR-UHFFFAOYSA-N 0.000 abstract 2
- 238000000034 method Methods 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000005062 Polybutadiene Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/28—Nitrogen-containing compounds
- C08K2003/282—Binary compounds of nitrogen with aluminium
-
- 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
-
- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- 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
- C08L2205/24—Crystallisation aids
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Inorganic Insulating Materials (AREA)
Abstract
The invention relates to the technical field of polymer composite materials, in particular to a heat-resistant insulating polymer composite material and a preparation method thereof, wherein the heat-resistant insulating polymer composite material comprises polypropylene, insulating rubber, nano MgO, PP particles, POE particles, nano Al2O3, polyurethane and adhesive, and comprises the following raw materials in parts by weight: 60-80 parts of polypropylene, 20-40 parts of insulating rubber, 6-8 parts of nano MgO, 10-14 parts of PP (polypropylene), 10-14 parts of POE (polyolefin elastomer) particles, 34-6 parts of nano Al2O, 16-20 parts of polyurethane and 5-8 parts of adhesive, wherein in the ventilated nano PP composite material, the nano Mg0 plays a role of a heterogeneous nucleating agent, and can induce the formation of B crystals and improve the crystallinity by about 4 percent, so that the heat resistance of the material is improved, and the heat conductivity coefficient of the insulating rubber is increased along with the increase of the filling part of the micron Al0, the Al O mixed filling insulating rubber is beneficial to improving the stacking property and showing better heat conductivity, but the ideal heat resistance effect can be achieved by selecting a proper mixing proportion.
Description
Technical Field
The invention relates to the technical field of polymer composite materials, in particular to a heat-resistant insulating polymer composite material and a preparation method thereof.
Background
Most of the polymer materials are insulating materials, and have excellent chemical corrosion resistance and processing property, but most of the polymer materials are poor conductors of heat, and the overall heat resistance is poor, so that the heat-resistant insulating polymer composite material and the preparation method thereof are provided to improve the problems.
Disclosure of Invention
The present invention is directed to a heat-resistant insulating polymer composite and a method for preparing the same, which are used to solve the problems of the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
a heat-resistant insulating polymer composite material comprises polypropylene, insulating rubber, nano MgO, PP particles, POE particles, nano Al2O3, polyurethane and an adhesive, and comprises the following raw materials in parts by weight: 60-80 parts of polypropylene, 20-40 parts of insulating rubber, 6-8 parts of nano MgO, 10-14 parts of PP particles, 10-14 parts of POE particles and nano Al2O34-6 parts of polyurethane, 16-20 parts of adhesive and 5-8 parts of adhesive.
As the preferable scheme of the invention, the insulating rubber is styrene butadiene rubber and adopts nano Al2O3Mixed with filled styrene butadiene rubber.
As a preferable scheme of the invention, the polyurethane adopts nano Al with the volume fraction of 20 percent2O3And (5) mixing and filling the filler.
As the preferable scheme of the invention, the adhesive adopts a graft copolymerization method, the prepared organic silicon modified epoxy resin is the masterbatch, and AIN is the heat-conducting filler.
A heat-resistant insulating polymer composite material is prepared by the following steps:
s1, 60-80 parts of polypropylene, 20-40 parts of insulating rubber, 6-8 parts of nano MgO, 10-14 parts of PP particles, 10-14 parts of POE particles and nano Al2O34-6 parts of polyurethane, 16-20 parts of adhesive and 5-8 parts of binder;
s2, preparing a PP nano composite, namely firstly putting nano Mg0, PP particles and POE particles into a vacuum oven, drying at the temperature of 60 ℃ to remove moisture, then putting isotactic PP and nano Mg0 into a double-screw extruder according to the mass ratio of 82 for mixing, extruding and granulating to prepare a PP master batch containing Mg0 with the mass fraction of 20%, drying, then mixing the PP master batch, POE and PP by using the double-screw extruder again to prepare the PP nano composite particles of POE, and finally extruding and molding the PP nano composite particles in the single-screw extruder, and cooling the particles on a conveyor belt in air;
s2, using nano Al2O3Mixed with styrene butadiene rubber, and the polyurethane adopts nano Al with the volume fraction of 20 percent2O3Mixing and filling the filler;
and S3, finally, feeding the polypropylene, the PP nano composite, the styrene-butadiene rubber and the polyurethane into a reaction kettle for mixing reaction, and finally, feeding the mixture into a double-screw extruder for mixing, extruding and granulating to obtain the heat-resistant insulating polymer composite material.
As a preferable scheme of the invention, the heating temperature of the S3 reaction kettle is 200-250 ℃, and the mixing speed is 150-200 r/min.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, in the nano PP composite material, the nano Mg0 plays a role of a heterogeneous nucleating agent, B crystal can be induced to form, and the crystallinity is improved by about 4%, so that the heat resistance of the material is improved, the heat conductivity coefficient of the insulating rubber is increased along with the increase of the filling part of the micron Al0, the AlO mixed filling insulating rubber is beneficial to improving the accumulation property and showing better heat conductivity, but a proper mixing proportion is required to be selected to achieve a more ideal heat-resistant effect, the adhesive adopts a graft copolymerization method, the organosilicon modified epoxy resin is prepared as a master batch (the adhesive has higher heat resistance and bonding property), the heat-conducting filler and a curing system are analyzed through an optimization test, and finally AIN is adopted as the heat-conducting filler to prepare the insulating heat-conducting adhesive, so that the overall insulating property can be improved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.
The invention provides a technical scheme that:
a heat-resistant insulating polymer composite material comprises polypropylene, insulating rubber, nano MgO, PP particles, POE particles, nano Al2O3, polyurethane and an adhesive, and comprises the following raw materials in parts by weight: 60-80 parts of polypropylene, 20-40 parts of insulating rubber, 6-8 parts of nano MgO, 10-14 parts of PP particles, 10-14 parts of POE particles and nano Al2O34-6 parts of polyurethane, 16-20 parts of adhesive and 5-8 parts of adhesive.
The insulating rubber is styrene butadiene rubber and adopts nano Al2O3Mixed with filled styrene butadiene rubber.
The polyurethane adopts nano Al with the volume fraction of 20%2O3And (5) mixing and filling the filler.
The adhesive adopts a graft copolymerization method to prepare the organic silicon modified epoxy resin as a masterbatch, and adopts AIN as a heat-conducting filler.
A heat-resistant insulating polymer composite material is prepared by the following steps:
s1, 60-80 parts of polypropylene, 20-40 parts of insulating rubber, 6-8 parts of nano MgO, 10-14 parts of PP particles, 10-14 parts of POE particles and nano Al2O34-6 parts of polyurethane, 16-20 parts of adhesive and 5-8 parts of binder;
s2, preparing a PP nano composite, namely firstly putting nano Mg0, PP particles and POE particles into a vacuum oven, drying at the temperature of 60 ℃ to remove moisture, then putting isotactic PP and nano Mg0 into a double-screw extruder according to the mass ratio of 82 for mixing, extruding and granulating to prepare a PP master batch containing Mg0 with the mass fraction of 20%, drying, then mixing the PP master batch, POE and PP by using the double-screw extruder again to prepare the PP nano composite particles of POE, and finally extruding and molding the PP nano composite particles in the single-screw extruder, and cooling the particles on a conveyor belt in air;
s2, using nano Al2O3Hybrid fillStyrene butadiene rubber, polyurethane adopts 20% volume fraction nano Al2O3Mixing and filling the filler;
and S3, finally, feeding the polypropylene, the PP nano composite, the styrene-butadiene rubber and the polyurethane into a reaction kettle for mixing reaction, and finally, feeding the mixture into a double-screw extruder for mixing, extruding and granulating to obtain the heat-resistant insulating polymer composite material.
The heating temperature of the S3 reaction kettle is 200-250 ℃, and the mixing speed is 150-200 r/min.
Example 1: 60 parts of polypropylene, 20 parts of insulating rubber, 6 parts of nano MgO, 10 parts of PP particles, 10 parts of POE particles and nano Al2O34 parts of polyurethane, 16 parts of adhesive and 5 parts of adhesive; preparing a PP nano composite, firstly putting nano Mg0, PP particles and POE particles into a vacuum oven, drying at the temperature of 60 ℃ to remove moisture, then putting isotactic PP and nano Mg0 into a double-screw extruder according to the mass ratio of 82 for mixing, extruding and granulating to prepare a PP master batch containing 20 mass percent of Mg0, mixing the PP master batch, the POE and the PP by using the double-screw extruder again after drying, finally extruding and molding the PP nano composite particles into the POE nano composite particles in the single-screw extruder, carrying out air cooling on a conveyor belt, and adopting nano Al2O3Mixed with styrene butadiene rubber, and the polyurethane adopts nano Al with the volume fraction of 20 percent2O3And mixing and filling fillers, finally putting the polypropylene, the PP nano composite, the styrene-butadiene rubber and the polyurethane into a reaction kettle for mixing reaction, wherein the heating temperature of the reaction kettle is 200-250 ℃, the mixing speed is 150-200 r/min, and finally putting the mixture into a double-screw extruder for mixing, extruding and granulating to obtain the heat-resistant insulating polymer composite material.
Example 2: 70 parts of polypropylene, 30 parts of insulating rubber, 7 parts of nano MgO, 12 parts of PP particles, 12 parts of POE particles and nano Al2O35 parts of polyurethane, 18 parts of adhesive and 6 parts of adhesive; preparing the PP nano composite, firstly putting nano Mg0, PP particles and POE particles into a vacuum oven, drying at the temperature of 60 ℃, removing moisture, and then putting isotactic PP and nano Mg0 into a double-screw extruder according to the mass ratio of 82Mixing, extruding and granulating to obtain PP master batch containing 20 mass percent of Mg0, drying, mixing the PP master batch, POE and PP by using a double-screw extruder again to obtain PP nano composite particles of the POE, finally extruding and molding the PP nano composite particles in a single-screw extruder, cooling the particles on a conveyor belt by using air, and adopting nano Al2O3Mixed with styrene butadiene rubber, and the polyurethane adopts nano Al with the volume fraction of 20 percent2O3And mixing and filling fillers, finally putting the polypropylene, the PP nano composite, the styrene-butadiene rubber and the polyurethane into a reaction kettle for mixing reaction, wherein the heating temperature of the reaction kettle is 200-250 ℃, the mixing speed is 150-200 r/min, and finally putting the mixture into a double-screw extruder for mixing, extruding and granulating to obtain the heat-resistant insulating polymer composite material.
Example 3: 80 parts of polypropylene, 40 parts of insulating rubber, 8 parts of nano MgO, 14 parts of PP particles, 14 parts of POE particles and nano Al2O36 parts of polyurethane, 20 parts of adhesive and 8 parts of binder; preparing a PP nano composite, firstly putting nano Mg0, PP particles and POE particles into a vacuum oven, drying at the temperature of 60 ℃ to remove moisture, then putting isotactic PP and nano Mg0 into a double-screw extruder according to the mass ratio of 82 for mixing, extruding and granulating to prepare a PP master batch containing 20 mass percent of Mg0, mixing the PP master batch, the POE and the PP by using the double-screw extruder again after drying, finally extruding and molding the PP nano composite particles into the POE nano composite particles in the single-screw extruder, carrying out air cooling on a conveyor belt, and adopting nano Al2O3Mixed with styrene butadiene rubber, and the polyurethane adopts nano Al with the volume fraction of 20 percent2O3And mixing and filling fillers, finally putting the polypropylene, the PP nano composite, the styrene-butadiene rubber and the polyurethane into a reaction kettle for mixing reaction, wherein the heating temperature of the reaction kettle is 200-250 ℃, the mixing speed is 150-200 r/min, and finally putting the mixture into a double-screw extruder for mixing, extruding and granulating to obtain the heat-resistant insulating polymer composite material.
| Data item | Heat resistance | Coefficient of thermal conductivity | Insulation property |
| Example 1 | 268℃ | 160W/(m·K) | 200MΩ/km |
| Example 2 | 230℃ | 100W/(m·K) | 150MΩ/km |
| Example 3 | 248℃ | 120W/(m·K) | 160MΩ/km |
In conclusion, in example 1, in the nano PP composite material, the nano Mg0 functions as a heterogeneous nucleating agent, which induces the formation of B crystal, and increases the crystallinity by about 4%, thereby improving the heat resistance of the material, and as the filling fraction of the micron Al0 increases, the thermal conductivity of the insulating rubber increases, the AlO mixed filled insulating rubber is beneficial to improving the stacking property and showing better thermal conductivity, but a proper mixing ratio needs to be selected to achieve a more ideal heat-resistant effect.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. A heat-resistant insulating polymer composite material comprises polypropylene, insulating rubber, nanometer MgO, PP particles, POE particles and nanometer Al2O3The polyurethane adhesive is characterized by comprising the following raw materials in parts by weight: 60-80 parts of polypropylene, 20-40 parts of insulating rubber, 6-8 parts of nano MgO, 10-14 parts of PP particles, 10-14 parts of POE particles and nano Al2O34-6 parts of polyurethane, 16-20 parts of adhesive and 5-8 parts of adhesive.
2. The heat-resistant insulating polymer composite material as claimed in claim 1, wherein the insulating rubber is styrene butadiene rubber, and nano Al is adopted2O3Mixed with filled styrene butadiene rubber.
3. The heat-resistant insulating polymer composite material as claimed in claim 1, wherein the polyurethane is 20% nano Al by volume fraction2O3And (5) mixing and filling the filler.
4. The heat-resistant insulating polymer composite material as claimed in claim 1, wherein the adhesive is prepared by graft copolymerization using silicone modified epoxy resin as a masterbatch and AIN as a thermally conductive filler.
5. A heat resistant insulating polymer composite according to any of claims 1 to 4, characterized in that the preparation method comprises the following steps:
s1, 60-80 parts of polypropylene, 20-40 parts of insulating rubber, 6-8 parts of nano MgO, 10-14 parts of PP particles, 10-14 parts of POE particles and nano Al2O34-6 parts of polyurethane, 16-20 parts of adhesive and 5-8 parts of binder;
s2, preparing a PP nano composite, namely firstly putting nano Mg0, PP particles and POE particles into a vacuum oven, drying at the temperature of 60 ℃ to remove moisture, then putting isotactic PP and nano Mg0 into a double-screw extruder according to the mass ratio of 82 for mixing, extruding and granulating to prepare a PP master batch containing Mg0 with the mass fraction of 20%, drying, then mixing the PP master batch, POE and PP by using the double-screw extruder again to prepare the PP nano composite particles of POE, and finally extruding and molding the PP nano composite particles in the single-screw extruder, and cooling the particles on a conveyor belt in air;
s2, filling nano Al2O3 into styrene butadiene rubber in a mixed mode, wherein the nano Al is used when the volume fraction of polyurethane is 20%2O3Mixing and filling the filler;
and S3, finally, feeding the polypropylene, the PP nano composite, the styrene-butadiene rubber and the polyurethane into a reaction kettle for mixing reaction, and finally, feeding the mixture into a double-screw extruder for mixing, extruding and granulating to obtain the heat-resistant insulating polymer composite material.
6. The heat-resistant insulating polymer composite material as claimed in claim 5, wherein the heating temperature of the S3 reaction kettle is 200-250 ℃, and the mixing speed is 150-200 r/min.
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Citations (5)
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| CN104151706A (en) * | 2014-08-12 | 2014-11-19 | 佛山市日丰企业有限公司 | Polypropylene composite material and preparation method thereof |
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| CN109503958A (en) * | 2018-11-02 | 2019-03-22 | 江苏亨通电子线缆科技有限公司 | A kind of Particular thermoplastic's vulcanized rubber material of high temperature resistant crack resistence vehicular cable |
| CN112251000A (en) * | 2020-11-05 | 2021-01-22 | 西安石油大学 | Low-temperature-resistant polymer insulating and heat-conducting composite material and processing technology |
-
2021
- 2021-05-21 CN CN202110557249.2A patent/CN113150447A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104974418A (en) * | 2014-04-14 | 2015-10-14 | 中国石化扬子石油化工有限公司 | Polyropylene composite material and preparation method thereof |
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Non-Patent Citations (1)
| Title |
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| 宋红艳: ""纳米MgO聚烯烃复合绝缘材料的制备及其电气性能的研究"", 《中国优秀硕士学位论文全文数据库（电子期刊）工程科技I辑》 * |
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Application publication date: 20210723 |