CN107778718A - A kind of PVC modified cable material of high temperature resistant and preparation method thereof - Google Patents
A kind of PVC modified cable material of high temperature resistant and preparation method thereof Download PDFInfo
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- CN107778718A CN107778718A CN201711044709.1A CN201711044709A CN107778718A CN 107778718 A CN107778718 A CN 107778718A CN 201711044709 A CN201711044709 A CN 201711044709A CN 107778718 A CN107778718 A CN 107778718A
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- high temperature
- temperature resistant
- polyvinyl chloride
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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
- C08L27/04—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 chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- 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
- H01B3/443—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 from vinylhalogenides or other halogenoethylenic compounds
-
- 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
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
-
- 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
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2312/00—Crosslinking
Abstract
The invention discloses PVC modified cable material of a kind of high temperature resistant and preparation method thereof, the material is prepared including following parts by weight raw material：12 15 parts of filler, 0.3 0.8 parts of composite thermal stabilizer, 12 18 parts of polytrifluorostyrene, 35 55 parts of polyvinyl chloride, 0.3 0.8 parts of coupling agent, 0.1 0.3 parts of crosslinking agent；Composite thermal stabilizer is added in polyvinyl chloride and carried out under conditions of polyvinyl chloride polymerization degree is controlled cross-linking modified, the significant resistance to elevated temperatures for improving polyvinyl chloride, and preferable processability is remained, the pvc material is used for cable, the resistance to elevated temperatures of cable can be dramatically increased.
Description
Technical field
The present invention relates to cable material field, and in particular to a kind of PVC modified cable material of high temperature resistant and its preparation
Method.
Background technology
Cable is to be fabricated to conductor thread core by twisted with one or more wire, then corresponding insulation is imposed on conductor
Layer, the wire that outside is wrapped sealing sheath and formed, is mainly made up of core, insulating barrier, screen layer and restrictive coating.Cable has
Take ground and space is few；Power supply safety is reliable, and electric shock possibility is small；Be advantageous to improve the power factor of power system；Operation,
Maintenance work is simple and convenient；Be advantageous to beautifying city, there is many advantages, such as confidentiality, in being widely used in living and producing
Every field.The effect of the coat layer of power cable is intrusion of the sealing protection cable from introduced contaminants and moisture, prevents that external force is straight
Connect damage cable insulation.Cable cover(ing) layer material not only requires good airproof performance, anti-corrosive properties height, high mechanical strength, good flame resistance,
Should also have certain resistance to elevated temperatures.
Polyvinyl chloride be VCM the initiators such as peroxide, azo-compound or under light, heat effect by from
The polymer being polymerized by base polymerization reaction mechanism, have it is fire-retardant, chemical proofing is high, mechanical strength and electrical insulating property are good
The advantages of good, pvc material are one of main materials of cable cover(ing) layer material.With cable answering in more areas
With, the application environment of cable also becomes increasingly complex, thus, requirement to the properties of cable also more and more higher, with single
The cable performance that pvc material is prepared can not meet the requirement of cable performance, and cable is entered with pvc material
Row modification necessitates.
Resistance to elevated temperatures is one of property that cable needs to have, and is continuously increased with the scope of cable application, electricity
Cable is also applied in more hot environments, thus, also more and more higher is required to the resistance to elevated temperatures of cable, cable used poly-
The resistance to elevated temperatures of vinyl chloride material requires also more and more higher.A variety of methods are also used in the prior art to improve polyvinyl chloride
The heat-resisting quantity of material, such as：Addition inorganic filler and the method being crosslinked to polyvinyl chloride, but due to the pin of raw material selection
Influence that is poor to property or the factor such as not being controlled to polyvinyl chloride polymerization degree, the obtained resistance to height of modified polyvinyl chloride material
Warm nature can not reach the requirement of anticipation, otherwise processability is good but heat-resisting quantity is poor, otherwise well but processability becomes heat-resisting quantity
Difference, so as to have a strong impact on the production of cable and application.
The content of the invention
The defects of it is an object of the invention to overcome existing cable pvc material heat-resisting quantity deficiency, there is provided a kind of
PVC modified cable material of high temperature resistant and preparation method thereof；Composite thermal stabilizer is added in polyvinyl chloride simultaneously by the present invention
Carried out under conditions of polyvinyl chloride polymerization degree is controlled cross-linking modified, significantly improve the resistance to elevated temperatures of polyvinyl chloride, and
Preferable processability is remained, the pvc material is used for cable, the resistance to elevated temperatures of cable can be dramatically increased.
In order to realize foregoing invention purpose, the invention provides a kind of PVC modified cable material of high temperature resistant, including
Following parts by weight raw material are prepared：The filler of 12-15 parts, the composite thermal stabilizer of 0.3-0.8 parts, poly- the three of 12-18 parts
Fluorobenzene ethene, the polyvinyl chloride of 35-55 parts, the coupling agent of 0.3-0.8 parts, the crosslinking agent of 0.1-0.3 parts.
A kind of PVC modified cable material of high temperature resistant of the present invention, it can be increased according to filler, heat stabilizer and crosslinking poly-
The resistant to elevated temperatures general principle of vinyl chloride, not only by targetedly screening composite thermal stabilizer, filler and the species of crosslinking agent, come
The compatibility between each raw material is improved, makes filler and heat stabilizer more preferable to the resistance to elevated temperatures humidification of polyvinyl chloride, also
Modified pvc material is set to be reached between heat-resisting quantity and processability by controlling the degree of polymerization of pvc material
To optimum balance relation, the pvc material so as to make to obtain also meets under conditions of with excellent resistance to elevated temperatures
The processability required for cable is prepared, so as to largely produce the good cable of heat-resisting quantity.
A kind of above-mentioned PVC modified cable material of high temperature resistant, wherein, described filler is mica powder and diatomaceous
Mixture；Filler can not only influence the resistance to elevated temperatures of polyvinyl chloride, also directly affect polyvinyl chloride processability, be made by compound
With can at utmost increase the heat-resisting quantity of polyvinyl chloride, the influence to processability reduces；Preferably, described filler medium cloud
The ratio between female powder and the amount of diatomaceous material are 2 ︰ 1；Wherein, described packing material size is 0.01-0.5 μm；Packing material size and length
Spend smaller, dispersiveness is poorer, and the humidification of polyvinyl chloride resistance to elevated temperatures is reduced, and packing material size and length are bigger, poly-
Compatibility is poorer in vinyl chloride phase, interfacial separation easily occurs, influences the performance of pvc material；Preferably, it is described to fill out
It is 0.05-0.2 μm to expect particle diameter；Most preferably, described packing material size is 0.1 μm.
A kind of above-mentioned PVC modified cable material of high temperature resistant, wherein, described composite thermal stabilizer is calcium stearate
With the mixture of acrinyl thioether composition；Synergistic function is formed between described composite thermal stabilizer, can be significantly improved poly-
The resistance to elevated temperatures of vinyl chloride material；Preferably, the material of calcium stearate and acrinyl thioether in described composite thermal stabilizer
The ratio between amount be 2 ︰ 1.
A kind of above-mentioned PVC modified cable material of high temperature resistant, wherein, the degree of polymerization of polyvinyl chloride is bigger, resistance to after crosslinking
High-temperature behavior is poorer, and processability is better, and the polymer of polyvinyl chloride is smaller, then resistance to elevated temperatures is better after being crosslinked, and processability is got over
Difference, therefore, rational polyvinyl chloride polymerization degree is selected, be the important means for balancing resistance to elevated temperatures and processability.Described is poly-
The trifluorostyrene degree of polymerization is 180-280；Preferably, the degree of polymerization of described polytrifluorostyrene is 200-250；Optimal,
The degree of polymerization of described polytrifluorostyrene is 230；By preferred, obtained polyvinyl chloride both has excellent heat-resisting quantity
Can, it may have preferable processability, be suitable for preparing the coat layer of power cable.
Wherein, described polyvinyl chloride polymerization degree is 1200-200；Preferably, the degree of polymerization of the polyvinyl chloride is
1400-1800；Most preferably, the degree of polymerization of described polyvinyl chloride is 1600；By preferred, obtained polyvinyl chloride both had
Excellent resistance to elevated temperatures, it may have preferable processability, be suitable for preparing the coat layer of power cable.
A kind of above-mentioned PVC modified cable material of high temperature resistant, wherein, described coupling agent is coupled for vinyl silanes
Agent；Vinyl silicane coupling agent can increase the compatibility between filler and pvc material, improve the property of pvc material
Energy.
Wherein, described crosslinking agent is the methylimidazole of 2- ethyls -4, and the crosslinking agent can not only be by two kinds of different polymerization degrees
Polyvinyl chloride is suitably crosslinked, and improves the resistance to elevated temperatures of pvc material, can be improved and the compatibility of filler, increase filler pair
The modifying function of polyvinyl chloride, synergistic function is formed with filler.
A kind of above-mentioned PVC modified cable material of high temperature resistant, wherein, its raw material also include dispersant, plasticizer,
One or more in antistatic additive, coloring agent, brightener；Above-mentioned auxiliary agent can improve the PVC modified cable material of high temperature resistant
The processability of material, increase the effect such as its feature, so as to improve its applicability.
In order to realize foregoing invention purpose, further, the invention provides a kind of PVC modified cable of high temperature resistant
The preparation method of material, comprises the following steps：
（1）Filler is handled with coupling agent；
（2）Filler Jing Guo coupling processing is mixed with composite thermal stabilizer, polytrifluorostyrene, polyvinyl chloride, crosslinking agent
Extruded after even with extruder, obtain the PVC modified cable material of high temperature resistant.
A kind of preparation method of the PVC modified cable material of high temperature resistant of the present invention, first carries out coupling processing to filler,
Increase its compatibility with high polymer material, then mixed with raw materials such as polyvinyl chloride, filler is dispersed in crosslinking polychlorostyrene second
In alkene, the modified polyvinyl chloride material that stability is good, resistance to elevated temperatures is good, processability is good is formed；The preparation method is simple and reliable,
It is suitable for extensive, the industrialized production of the PVC modified cable material of high temperature resistant.
Compared with prior art, beneficial effects of the present invention：
1st, the PVC modified cable material of high temperature resistant of the present invention targetedly screen composite thermal stabilizer, filler, coupling agent and
The species of crosslinking agent, to improve the compatibility between filler and polyvinyl chloride, filler is set to increase the resistance to elevated temperatures of polyvinyl chloride
Pretend with more preferable.
2nd, the PVC modified cable material of high temperature resistant of the present invention is made modified by controlling the degree of polymerization of polyvinyl chloride
Pvc material reach optimum balance relation between resistance to elevated temperatures and processability, so as to get pvc material exist
Under conditions of excellent resistance to elevated temperatures, the processability prepared required for the coat layer of power cable is also complied with.
3rd, preparation method of the present invention is simple, reliable, is adapted to the extensive, industrial of the PVC modified cable material of high temperature resistant
Metaplasia is produced.
Embodiment
With reference to test example and embodiment, the present invention is described in further detail.But this should not be understood
Following embodiment is only limitted to for the scope of the above-mentioned theme of the present invention, it is all that this is belonged to based on the technology that present invention is realized
The scope of invention.
Embodiment 1
（1）By 8 parts, particle diameter be 0.1 μm of mica powder and 4 parts, particle diameter be 0.1 μm of diatomite, 0.5 part of vinyl silanes idol
Connection agent is handled；
（2）By the mica powder Jing Guo coupling processing, diatomite and 0.4 part of calcium stearate, 0.2 part of acrinyl thioether, 15 parts
Polytrifluorostyrene that the degree of polymerization is 230, the polyvinyl chloride that 45 parts of the degree of polymerization is 1400,0.2 part of the methyl miaow of 2- ethyls -4
Extruded after azoles is well mixed with extruder, obtain the PVC modified cable material of high temperature resistant.
Embodiment 2
（1）By 6 parts, particle diameter be 0.5 μm of mica powder and 6 parts, particle diameter be 0.01 μm of diatomite, 0.3 part of vinyl silanes idol
Connection agent is handled；
（2）By the mica powder Jing Guo coupling processing, diatomite and 0.2 part of calcium stearate, 0.1 part of acrinyl thioether, 12 parts
Polytrifluorostyrene that the degree of polymerization is 180, the polyvinyl chloride that 55 parts of the degree of polymerization is 2000,0.1 part of the methyl miaow of 2- ethyls -4
Extruded after azoles is well mixed with extruder, obtain the PVC modified cable material of high temperature resistant.
Embodiment 3
（1）By 10 parts, particle diameter be 0.01 μm of mica powder and 5 parts, particle diameter be 0.2 μm of diatomite, 0.8 part of vinyl silanes
Coupling agent is handled；
（2）It is 280 by the filler Jing Guo coupling processing and 0.6 part of calcium stearate and 0.2 part of acrinyl thioether, 18 parts of the degree of polymerization
Polytrifluorostyrene, the polyvinyl chloride that 35 parts of the degree of polymerization is 1200,0.3 part of the methylimidazole of 2- ethyls -4 it is well mixed after
Extruded with extruder, obtain the PVC modified cable material of high temperature resistant.
Comparative example 1
（1）By 12 parts, particle diameter be 0.1 μm of mica powder handled with 0.5 part of vinyl silicane coupling agent；
（2）By the mica powder Jing Guo coupling processing, diatomite and 0.4 part of calcium stearate, 0.2 part of acrinyl thioether, 15 parts
Polytrifluorostyrene that the degree of polymerization is 230, the polyvinyl chloride that 45 parts of the degree of polymerization is 1400,0.2 part of the methyl miaow of 2- ethyls -4
Extruded after azoles is well mixed with extruder, obtain PVC modified cable material.
Comparative example 2
（1）By 8 parts, particle diameter be 0.1 μm of mica powder and 4 parts, particle diameter be 0.1 μm of diatomite, 0.5 part of vinyl silanes idol
Connection agent is handled；
（2）By the mica powder Jing Guo coupling processing, diatomite and 0.6 part of acrinyl thioether, 15 parts of the degree of polymerization be 230 it is poly-
With crowded after trifluorostyrene, the polyvinyl chloride that 45 parts of the degree of polymerization is 1400,0.2 part of the methylimidazole of 2- ethyls -4 are well mixed
Go out machine to be extruded, obtain PVC modified cable material.
Comparative example 3
（1）By 8 parts, particle diameter be 0.1 μm of mica powder and 4 parts, particle diameter be 0.1 μm of diatomite, 0.5 part of vinyl silanes idol
Connection agent is handled；
（2）By the mica powder Jing Guo coupling processing, diatomite and 0.6 part of calcium stearate, the poly- trifluoro that 15 parts of the degree of polymerization is 230
Extruder is used after styrene, the polyvinyl chloride that 45 parts of the degree of polymerization is 1400,0.2 part of the methylimidazole of 2- ethyls -4 are well mixed
Extruded, obtain PVC modified cable material.
Comparative example 4
（1）By 8 parts, particle diameter be 0.1 μm of mica powder and 4 parts, particle diameter be 0.1 μm of diatomite, 0.5 part of vinyl silanes idol
Connection agent is handled；
（2）By the mica powder Jing Guo coupling processing, diatomite and 0.4 part of calcium stearate, 0.2 part of acrinyl thioether, 15 parts
Polytrifluorostyrene that the degree of polymerization is 300, the polyvinyl chloride that 45 parts of the degree of polymerization is 2200,0.2 part of the methyl miaow of 2- ethyls -4
Extruded after azoles is well mixed with extruder, obtain PVC modified cable material.
Comparative example 5
（1）By 8 parts, particle diameter be 0.1 μm of mica powder and 4 parts, particle diameter be 0.1 μm of diatomite, 0.5 part of vinyl silanes idol
Connection agent is handled；
（2）By the mica powder Jing Guo coupling processing, diatomite and 0.4 part of calcium stearate, 0.2 part of acrinyl thioether, 15 parts
Polytrifluorostyrene that the degree of polymerization is 160, the polyvinyl chloride that 45 parts of the degree of polymerization is 1000,0.2 part of the methyl miaow of 2- ethyls -4
Extruded after azoles is well mixed with extruder, obtain PVC modified cable material.
By the PVC modified cable material in above-described embodiment 1-3 and comparative example 1-5, performance detection, record data are carried out
It is as follows：
| Performance | Softening temperature（℃） | Processability |
| Embodiment 1 | 108 | +++ |
| Embodiment 2 | 107 | +++ |
| Embodiment 3 | 107 | +++ |
| Comparative example 1 | 102 | ++ |
| Comparative example 2 | 97 | +++ |
| Comparative example 3 | 98 | +++ |
| Comparative example 4 | 95 | ++++ |
| Comparative example 5 | 108 | + |
Note："+" is more, illustrates that performance is better.
The high temperature resistant of the present invention being prepared in embodiment 1-3 is PVC modified to be understood to above-mentioned analysis of experimental data
Cable material, resistance to elevated temperatures is good, and processability is good；And in comparative example 1, diatomite is not added with, filler synergistic function disappears,
The resistance to elevated temperatures of pvc material significantly reduces, and processability reduces；Calcium stearate heat stabilizer is not added with comparative example 2,
The synergistic function of compound stabilizer is disappeared, and the resistance to elevated temperatures humidification of polyvinyl chloride is significantly reduced；In comparative example 3
Acrinyl thioether heat stabilizer is not added with, the synergistic function of compound stabilizer disappears, to the resistance to elevated temperatures of polyvinyl chloride
Humidification significantly reduces；The degree of polymerization of polyvinyl chloride is excessive in comparative example 4, although processability improves, resistance to elevated temperatures shows
Writing reduces；The degree of polymerization of polyvinyl chloride is too small in comparative example 5, and modified polyvinyl chloride resistance to elevated temperatures is good, but processability significantly drops
It is low.
Claims (10)
1. a kind of PVC modified cable material of high temperature resistant, it is characterised in that be prepared including following parts by weight raw material：
The filler of 12-15 parts, the composite thermal stabilizer of 0.3-0.8 parts, the polytrifluorostyrene of 12-18 parts, the polychlorostyrene second of 35-55 parts
Alkene, the coupling agent of 0.3-0.8 parts, the crosslinking agent of 0.1-0.3 parts；Described filler is mica powder and diatomaceous mixture；Institute
The composite thermal stabilizer stated is the mixture of calcium stearate and acrinyl thioether composition；The described polytrifluorostyrene degree of polymerization is
180-280；Described polyvinyl chloride polymerization degree is 1200-2000；Described coupling agent is vinyl silicane coupling agent；Described
Crosslinking agent is the methylimidazole of 2- ethyls -4.
2. the PVC modified cable material of high temperature resistant according to claim 1, it is characterised in that described filler medium cloud
The ratio between female powder and the amount of diatomaceous material are 2 ︰ 1.
3. the PVC modified cable material of high temperature resistant according to claim 1, it is characterised in that described packing material size
For 0.01-0.5 μm.
4. the PVC modified cable material of high temperature resistant according to claim 3, it is characterised in that described packing material size
For 0.05-0.2 μm.
5. the PVC modified cable material of high temperature resistant according to claim 1, it is characterised in that described compound thermal is steady
It is 2 ︰ 1 to determine the ratio between amount of material of calcium stearate and acrinyl thioether in agent.
6. the PVC modified cable material of high temperature resistant according to claim 1, it is characterised in that described poly- trifluoro-benzene
The degree of polymerization of ethene is 200-250.
7. the PVC modified cable material of high temperature resistant according to claim 6, it is characterised in that described poly- trifluoro-benzene
The degree of polymerization of ethene is 230.
8. the PVC modified cable material of high temperature resistant according to claim 1, it is characterised in that the polyvinyl chloride
The degree of polymerization is 1400-1800.
9. the PVC modified cable material of high temperature resistant according to claim 8, it is characterised in that the polyvinyl chloride
The degree of polymerization is 1600.
10. a kind of preparation method of the PVC modified cable material of any one of claim 1-9 high temperature resistants, its feature exist
In comprising the following steps：
（1）Filler is handled with coupling agent；
（2）Filler Jing Guo coupling processing is mixed with composite thermal stabilizer, polytrifluorostyrene, polyvinyl chloride, crosslinking agent
Extruded after even with extruder, obtain the PVC modified cable material of high temperature resistant.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711044709.1A CN107778718A (en) | 2017-10-31 | 2017-10-31 | A kind of PVC modified cable material of high temperature resistant and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711044709.1A CN107778718A (en) | 2017-10-31 | 2017-10-31 | A kind of PVC modified cable material of high temperature resistant and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111499984A (en) * | 2019-01-30 | 2020-08-07 | 扬州力泰管业有限公司 | High-strength pipe based on HPVC (high pressure polyvinyl chloride) and preparation method thereof |
-
2017
- 2017-10-31 CN CN201711044709.1A patent/CN107778718A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111499984A (en) * | 2019-01-30 | 2020-08-07 | 扬州力泰管业有限公司 | High-strength pipe based on HPVC (high pressure polyvinyl chloride) and preparation method thereof |
| CN111499984B (en) * | 2019-01-30 | 2022-04-19 | 扬州力泰管业有限公司 | High-strength pipe based on HPVC (high pressure polyvinyl chloride) and preparation method thereof |
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Application publication date: 20180309 |