CN109705498A - Heat-resistant antifriction PVC plastic - Google Patents
Heat-resistant antifriction PVC plastic Download PDFInfo
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- CN109705498A CN109705498A CN201910127092.2A CN201910127092A CN109705498A CN 109705498 A CN109705498 A CN 109705498A CN 201910127092 A CN201910127092 A CN 201910127092A CN 109705498 A CN109705498 A CN 109705498A
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Abstract
The invention discloses a kind of heat-resistant antifriction PVC plastic, the material including following parts by weight: 60~70 parts by weight of polyvinyl chloride；18~22 parts by weight of high molecular polymer；30~35 parts by weight of plasticizer；2~4 parts by weight of stabilizer；6~8 parts by weight of filler；3~5 parts by weight of antioxidant；1~3 parts by weight of lubricant；0.5~1 parts by weight of modifying agent.Heat-resistant antifriction PVC plastic of the invention improves the internal structure of PVC plastic, with excellent heat resistance and anti-wear property by optimizing to its chemical component in microcosmic degree.
Description
Technical field
The present invention relates to a kind of plastics, more particularly to a kind of heat-resistant antifriction PVC plastic.
Background technique
Pvc material is good with rigidity, intensity is high, fire-retardant, corrosion-resistant, electric insulating quality is good；And processing performance is good
It is good, cheap, thus have a wide range of applications in CABLE MATERIALS industry.Usual automobile electric wire is generally also with Corvic
For base-material, plasticizer, stabilizer and processing aid are added, is process through dedicated kneading device.Automobile electric wire cable is different
In general wire and cable, it is the needs exclusively for automobile and designs.Since automotive interior is a sufficiently complex small ring
Border, there are the various complex conditions such as vibration, friction, greasy dirt, high fever, cold and electromagnetic radiation, thus automobile electric wire is required to have
The various functions such as heat-resisting, cold-resistant, wear-resisting, tasteless and anti-interference.
One of the key technology of PVC automobile cable material is exactly the Improvement of wear-resisting property, and automotive line uses position due to it
It is special to set, and automobile not can avoid the rubs mutually between line and line in the process of running, once plastic sheath is worn out directly to lead
Short circuit is caused to cause hidden peril of accident, so electric wire for automobile requires there are enough wear-resisting properties.However in the prior art for PVC
The wearability of CABLE MATERIALS, common CABLE MATERIALS are far from satisfying requirement.EP0915485A1 discloses a kind of for car thin-wall
Composition formula is blended in the PVC of insulated electric conductor, improves the wearability of electric wire by the way that polyurethane is added.EP1209697A1 is described
A kind of unleaded PVC blend is used for car thin-wall insulated cable, and tool has good wearability and high temperature resistance.On however
It still needs further improvement for the CABLE MATERIALS wearability for stating in patent.In recent years, with the development of irradiation technique, crosslinking electricity is promoted
The development of cable material, cross-linking radiation PVC Insulation Material are remarkably improved the wear-resisting property of material, but complex process, higher cost.
Summary of the invention
In view of the above shortcomings, it is an object of the invention to develop a heat-resistant antifriction PVC plastic, with excellent
Heat resistance and abrasionproof performance.
Technical solution of the present invention is summarized as follows:
A kind of heat-resistant antifriction PVC plastic, wherein the material including following parts by weight:
Preferably, the heat-resistant antifriction PVC plastic, wherein the high molecular polymer includes in 30~40wt%
Density polyethylene and 60~70wt% polyethylene oxide.
Preferably, the heat-resistant antifriction PVC plastic, wherein the plasticizer is 17 fluorine pelargonic acid ethyl esters.
Preferably, the heat-resistant antifriction PVC plastic, wherein the stabilizer includes 60~70wt% magnesium stearate
With 30~40wt% heptadecafluorodecyl triethoxysilane.
Preferably, the heat-resistant antifriction PVC plastic, wherein the filler includes 30~40wt% barium sulfate and 60
~70wt% kaolinite.
Preferably, the heat-resistant antifriction PVC plastic, wherein the antioxidant includes 50~60wt% dialkyl group two
Thiocarbamic acid cadmium and 40~50wt% phenyl-α-naphthylamine.
Preferably, the heat-resistant antifriction PVC plastic, wherein the lubricant includes 30~40wt% oleic acid and 60
~70wt% rosin.
Preferably, the heat-resistant antifriction PVC plastic, wherein the modifying agent is cis- Isosorbide-5-Nitrae-polyisoprene rubber
Glue.
Preferably, the heat-resistant antifriction PVC plastic, wherein the barium sulfate and kaolinic partial size be 80~
100nm。
Preferably, the heat-resistant antifriction PVC plastic, wherein the number-average molecular weight of the polyvinyl chloride be 52000~
56000g/mol。
The beneficial effects of the present invention are:
(1) heat-resistant antifriction PVC plastic of the invention is improved in microcosmic degree by optimizing to its chemical component
The internal structure of PVC plastic, with excellent heat resistance and anti-wear property.
(2) for the present invention using polyvinyl chloride as main body, this case is introduced into the middle density good with toughness light resistance in main material
Polyethylene and the excellent polyethylene oxide of thermal stability wear-resisting property；Magnesium stearate and heptadecafluorodecyl triethoxysilane collaboration
Effect, can be improved its weather resistance and thermal stability；Cadmium diamyldithiocarbamate and phenyl-α-naphthylamine and PVC plastic
Material has good compatibility and compatibility, so that the antioxygen property of PVC plastic reaches best；Gathered by the cis- Isosorbide-5-Nitrae-of addition different
Pentadiene rubber and PVC are crosslinked, and gel content increases, to improve the thermal stability of PVC, heat resistance and keep its thermoplasticity.
Specific embodiment
The present invention will be further described in detail below with reference to the embodiments, to enable those skilled in the art referring to specification
Text can be implemented accordingly.
This case proposes a kind of heat-resistant antifriction PVC plastic, the material including following parts by weight:
Polyvinyl chloride has fire-retardant, chemical resistance high (sulfuric acid that resistance to concentrated hydrochloric acid, concentration are 90%, concentration 60%
Nitric acid and concentration 20% sodium hydroxide), mechanical strength the advantages of, thermal stability of polyvinyl chloride and light resistance are poor；In order to
These defects are made up, this case introduces the medium density polyethylene and thermal stability wear-resisting property good with toughness light resistance in main material
Excellent polyethylene oxide.
As the another embodiment of this case, crystal type high molecular polymer include 30~40wt% linear high-density polyethylene,
20~30wt% Kynoar and 40~50wt% polyethylene terephthalate.Linear high-density polyethylene gathers inclined fluorine
Ethylene and polyethylene terephthalate improve stability, the light fastness of PVC plastic by synergistic effect.
As the another embodiment of this case, high molecular polymer includes 30~40wt% medium density polyethylene and 60~70wt%
Polyethylene oxide.Medium density polyethylene and polyethylene oxide improve stability, the light resistance of PVC plastic by synergistic effect
Energy.
As the another embodiment of this case, plasticizer is 17 fluorine pelargonic acid ethyl esters.The main function of plasticizer is to weaken to gather
Secondary valence between adduct molecule is strong, increase the mobility of polymer molecular chain, reduces the crystallinity of polymer molecular chain, i.e.,
The plasticity for increasing polymer, hardness, modulus, softening temperature and the brittle temperature for showing as polymer decline, and elongation, song
Flexible and flexibility, the preferred plasticizer of this case are 17 fluorine pelargonic acid ethyl esters.
As the another embodiment of this case, stabilizer includes 17 fluorine decyl of 60~70wt% magnesium stearate and 30~40wt%
Triethoxysilane.Magnesium stearate and heptadecafluorodecyl triethoxysilane synergistic effect, can be improved its weather resistance and heat are steady
Qualitative energy.
As the another embodiment of this case, filler includes 30~40wt% barium sulfate and 60~70wt% kaolinite.In order to obtain
There must be the PVC plastic of more high heat resistance, wear-resisting property, corrosion resistance, this case introduces again has collaboration performance heat-resisting
Performance, wear-resisting property, corrosion resistance barium sulfate and kaolinite, wherein barium sulfate have outstanding corrosion-resistant and heat resistance
Can, kaolinite has excellent high temperature resistance and abrasion resistance properties.
As the another embodiment of this case, antioxidant include 50~60wt% cadmium diamyldithiocarbamate and 40~
50wt% phenyl-α-naphthylamine.Cadmium diamyldithiocarbamate can eliminate peroxy radical and alkoxy free group, and can inhibit
Light degradation；The antioxygenic property and corrosion resistance of PVC plastic, dialkyldithiocarbamacompositions can be improved in phenyl-α-naphthylamine
Cadmium and phenyl-α-naphthylamine and PVC plastic have good compatibility and compatibility, so that the antioxygen property of PVC plastic reaches most
It is good.
As the another embodiment of this case, lubricant includes 30~40wt% oleic acid and 60~70wt% rosin.Lubricant it
The addition because of it so lubricating action can be played, reduce the friction of plastic melt, oleic acid and rosin and polymer have it is good
Compatibility, its cohesive force between polymeric inner plays a part of reduction polymer molecule, so as to improve rubbing in plastic melt
The mobility of heat and melt is wiped, frictional force is reduced.
As the another embodiment of this case, modifying agent is cis- Isosorbide-5-Nitrae-polyisoprene rubber.Gathered by the cis- Isosorbide-5-Nitrae-of addition different
Pentadiene rubber and PVC are crosslinked, and gel content increases, to improve the thermal stability of PVC, heat resistance and keep its thermoplasticity.
As the another embodiment of this case, barium sulfate and kaolinic partial size are 80~100nm.Barium sulfate and kaolinite partial size
Range can make PVC plastic heat resistance, wear-resisting property, be balanced between corrosion resistance well.Therefore, particle size range
It should be restricted.
As the another embodiment of this case, the number-average molecular weight of polyvinyl chloride is 52000~56000g/mol.Polyvinyl chloride
Number-average molecular weight can influence the mechanical strength of PVC, and therefore, the number-average molecular weight of polyvinyl chloride should be restricted.
The specific embodiment and comparative example being listed below:
Embodiment 1:
A kind of heat-resistant antifriction PVC plastic, the material including following parts by weight:
Barium sulfate and kaolinic partial size are 80nm；The number-average molecular weight of polyvinyl chloride is 52000g/mol.
The preparation method of heat-resistant antifriction PVC plastic:
1) by polyvinyl chloride, magnesium stearate, heptadecafluorodecyl triethoxysilane, oleic acid, rosin, dialkyl dithio ammonia
Base formic acid cadmium, phenyl-α-naphthylamine are placed in heating in high-speed kneading machine and carry out mixed on low speed, and the temperature control of high-speed kneading machine exists
100-105 DEG C, while 17 fluorine pelargonic acid ethyl esters are added, start mixed at high speed；
2) when mixed at high speed to material temperature reaches 90 DEG C, it is again started up mixed on low speed, is first added in the case where mixed on low speed
Barium sulfate and kaolinite are uniformly mixed, and medium density polyethylene, polyethylene oxide, cis- Isosorbide-5-Nitrae-polyisoprene rubber is then added,
Continue mixed on low speed 60 seconds, can discharge when material temperature reaches 100 DEG C, obtains mixture；
3) raw material that step 2) is uniformly mixed is directlyed adopt into double screw extruder squeeze out and make material, control extrusion temperature
It is 140 DEG C, obtains heat-resistant antifriction PVC plastic after the particle drying of extrusion.
Embodiment 2:
A kind of heat-resistant antifriction PVC plastic, the material including following parts by weight:
Barium sulfate and kaolinic partial size are 90nm；The number-average molecular weight of polyvinyl chloride is 53000g/mol.
The preparation method of heat-resistant antifriction PVC plastic:
1) by polyvinyl chloride, magnesium stearate, heptadecafluorodecyl triethoxysilane, oleic acid, rosin, dialkyl dithio ammonia
Base formic acid cadmium, phenyl-α-naphthylamine are placed in heating in high-speed kneading machine and carry out mixed on low speed, and the temperature control of high-speed kneading machine exists
100-105 DEG C, while 17 fluorine pelargonic acid ethyl esters are added, start mixed at high speed；
2) when mixed at high speed to material temperature reaches 90 DEG C, it is again started up mixed on low speed, is first added in the case where mixed on low speed
Barium sulfate and kaolinite are uniformly mixed, and medium density polyethylene, polyethylene oxide, cis- Isosorbide-5-Nitrae-polyisoprene rubber is then added,
Continue mixed on low speed 60 seconds, can discharge when material temperature reaches 100 DEG C, obtains mixture；
3) raw material that step 2) is uniformly mixed is directlyed adopt into double screw extruder squeeze out and make material, control extrusion temperature
It is 140 DEG C, obtains heat-resistant antifriction PVC plastic after the particle drying of extrusion.
Embodiment 3:
A kind of heat-resistant antifriction PVC plastic, the material including following parts by weight:
Barium sulfate and kaolinic partial size are 100nm；The number-average molecular weight of polyvinyl chloride is 56000g/mol.
The preparation method of heat-resistant antifriction PVC plastic:
1) by polyvinyl chloride, magnesium stearate, heptadecafluorodecyl triethoxysilane, oleic acid, rosin, dialkyl dithio ammonia
Base formic acid cadmium, phenyl-α-naphthylamine are placed in heating in high-speed kneading machine and carry out mixed on low speed, and the temperature control of high-speed kneading machine exists
100-105 DEG C, while 17 fluorine pelargonic acid ethyl esters are added, start mixed at high speed；
2) when mixed at high speed to material temperature reaches 90 DEG C, it is again started up mixed on low speed, is first added in the case where mixed on low speed
Barium sulfate and kaolinite are uniformly mixed, and medium density polyethylene, polyethylene oxide, cis- Isosorbide-5-Nitrae-polyisoprene rubber is then added,
Continue mixed on low speed 60 seconds, can discharge when material temperature reaches 100 DEG C, obtains mixture；
3) raw material that step 2) is uniformly mixed is directlyed adopt into double screw extruder squeeze out and make material, control extrusion temperature
It is 140 DEG C, obtains heat-resistant antifriction PVC plastic after the particle drying of extrusion.
Comparative example 1:
A kind of heat-resistant antifriction PVC plastic, the material including following parts by weight:
Barium sulfate and kaolinic partial size are 80nm；The number-average molecular weight of polyvinyl chloride is 52000g/mol.
The preparation method of heat-resistant antifriction PVC plastic:
1) by polyvinyl chloride, magnesium stearate, heptadecafluorodecyl triethoxysilane, oleic acid, rosin, dialkyl dithio ammonia
Base formic acid cadmium, phenyl-α-naphthylamine are placed in heating in high-speed kneading machine and carry out mixed on low speed, and the temperature control of high-speed kneading machine exists
100-105 DEG C, while 17 fluorine pelargonic acid ethyl esters are added, start mixed at high speed；
2) when mixed at high speed to material temperature reaches 90 DEG C, it is again started up mixed on low speed, is first added in the case where mixed on low speed
Barium sulfate and kaolinite are uniformly mixed, and polyethylene oxide, cis- Isosorbide-5-Nitrae-polyisoprene rubber is then added, and continue mixed on low speed
It 60 seconds, can discharge when material temperature reaches 100 DEG C, obtain mixture；
3) raw material that step 2) is uniformly mixed is directlyed adopt into double screw extruder squeeze out and make material, control extrusion temperature
It is 140 DEG C, obtains heat-resistant antifriction PVC plastic after the particle drying of extrusion.
Comparative example 2:
A kind of heat-resistant antifriction PVC plastic, the material including following parts by weight:
Barium sulfate and kaolinic partial size are 80nm；The number-average molecular weight of polyvinyl chloride is 52000g/mol.
The preparation method of heat-resistant antifriction PVC plastic:
1) by polyvinyl chloride, magnesium stearate, heptadecafluorodecyl triethoxysilane, oleic acid, rosin, dialkyl dithio ammonia
Base formic acid cadmium, phenyl-α-naphthylamine are placed in heating in high-speed kneading machine and carry out mixed on low speed, and the temperature control of high-speed kneading machine exists
100-105 DEG C, while 17 fluorine pelargonic acid ethyl esters are added, start mixed at high speed；
2) when mixed at high speed to material temperature reaches 90 DEG C, it is again started up mixed on low speed, is first added in the case where mixed on low speed
Barium sulfate and kaolinite are uniformly mixed, and medium density polyethylene, polyethylene oxide, cis- Isosorbide-5-Nitrae-polyisoprene rubber is then added,
Continue mixed on low speed 60 seconds, can discharge when material temperature reaches 100 DEG C, obtains mixture；
3) raw material that step 2) is uniformly mixed is directlyed adopt into double screw extruder squeeze out and make material, control extrusion temperature
It is 140 DEG C, obtains heat-resistant antifriction PVC plastic after the particle drying of extrusion.
Comparative example 3:
A kind of heat-resistant antifriction PVC plastic, the material including following parts by weight:
Barium sulfate and kaolinic partial size are 90nm；The number-average molecular weight of polyvinyl chloride is 53000g/mol.
The preparation method of heat-resistant antifriction PVC plastic:
1) by polyvinyl chloride, magnesium stearate, heptadecafluorodecyl triethoxysilane, oleic acid, rosin, dialkyl dithio ammonia
Base formic acid cadmium, phenyl-α-naphthylamine are placed in heating in high-speed kneading machine and carry out mixed on low speed, and the temperature control of high-speed kneading machine exists
100-105 DEG C, while 17 fluorine pelargonic acid ethyl esters are added, start mixed at high speed；
2) when mixed at high speed to material temperature reaches 90 DEG C, it is again started up mixed on low speed, is first added in the case where mixed on low speed
Kaolinite is uniformly mixed, and medium density polyethylene, polyethylene oxide, cis- Isosorbide-5-Nitrae-polyisoprene rubber is then added, and continues low speed
Mixing 60 seconds, can discharge when material temperature reaches 100 DEG C, obtain mixture；
3) raw material that step 2) is uniformly mixed is directlyed adopt into double screw extruder squeeze out and make material, control extrusion temperature
It is 140 DEG C, obtains heat-resistant antifriction PVC plastic after the particle drying of extrusion.
Comparative example 4:
A kind of heat-resistant antifriction PVC plastic, the material including following parts by weight:
Barium sulfate and kaolinic partial size are 90nm；The number-average molecular weight of polyvinyl chloride is 53000g/mol.
The preparation method of heat-resistant antifriction PVC plastic:
1) by polyvinyl chloride, magnesium stearate, heptadecafluorodecyl triethoxysilane, oleic acid, rosin, dialkyl dithio ammonia
Base formic acid cadmium, phenyl-α-naphthylamine are placed in heating in high-speed kneading machine and carry out mixed on low speed, and the temperature control of high-speed kneading machine exists
100-105 DEG C, while 17 fluorine pelargonic acid ethyl esters are added, start mixed at high speed；
2) when mixed at high speed to material temperature reaches 90 DEG C, it is again started up mixed on low speed, is first added in the case where mixed on low speed
Barium sulfate and kaolinite are uniformly mixed, and medium density polyethylene, polyethylene oxide, cis- Isosorbide-5-Nitrae-polyisoprene rubber is then added,
Continue mixed on low speed 60 seconds, can discharge when material temperature reaches 100 DEG C, obtains mixture；
3) raw material that step 2) is uniformly mixed is directlyed adopt into double screw extruder squeeze out and make material, control extrusion temperature
It is 140 DEG C, obtains heat-resistant antifriction PVC plastic after the particle drying of extrusion.
Comparative example 5:
A kind of heat-resistant antifriction PVC plastic, the material including following parts by weight:
Barium sulfate and kaolinic partial size are 100nm；The number-average molecular weight of polyvinyl chloride is 56000g/mol.
The preparation method of heat-resistant antifriction PVC plastic:
1) by polyvinyl chloride, magnesium stearate, heptadecafluorodecyl triethoxysilane, oleic acid, dialkyl dithio amino first
Sour cadmium, phenyl-α-naphthylamine are placed in heating in high-speed kneading machine and carry out mixed on low speed, and the temperature of high-speed kneading machine is controlled in 100-
105 DEG C, while 17 fluorine pelargonic acid ethyl esters are added, start mixed at high speed；
2) when mixed at high speed to material temperature reaches 90 DEG C, it is again started up mixed on low speed, is first added in the case where mixed on low speed
Barium sulfate and kaolinite are uniformly mixed, and medium density polyethylene, polyethylene oxide, cis- Isosorbide-5-Nitrae-polyisoprene rubber is then added,
Continue mixed on low speed 60 seconds, can discharge when material temperature reaches 100 DEG C, obtains mixture；
3) raw material that step 2) is uniformly mixed is directlyed adopt into double screw extruder squeeze out and make material, control extrusion temperature
It is 140 DEG C, obtains heat-resistant antifriction PVC plastic after the particle drying of extrusion.
Comparative example 6:
A kind of heat-resistant antifriction PVC plastic, the material including following parts by weight:
Barium sulfate and kaolinic partial size are 100nm；The number-average molecular weight of polyvinyl chloride is 56000g/mol.
The preparation method of heat-resistant antifriction PVC plastic:
1) by polyvinyl chloride, magnesium stearate, heptadecafluorodecyl triethoxysilane, oleic acid, rosin, dialkyl dithio ammonia
Base formic acid cadmium, phenyl-α-naphthylamine are placed in heating in high-speed kneading machine and carry out mixed on low speed, and the temperature control of high-speed kneading machine exists
100-105 DEG C, while 17 fluorine pelargonic acid ethyl esters are added, start mixed at high speed；
2) when mixed at high speed to material temperature reaches 90 DEG C, it is again started up mixed on low speed, is first added in the case where mixed on low speed
Barium sulfate and kaolinite are uniformly mixed, and medium density polyethylene, polyethylene oxide is then added, and are continued mixed on low speed 60 seconds, material temperature
It can discharge when reaching 100 DEG C, obtain mixture；
3) raw material that step 2) is uniformly mixed is directlyed adopt into double screw extruder squeeze out and make material, control extrusion temperature
It is 140 DEG C, obtains heat-resistant antifriction PVC plastic after the particle drying of extrusion.
The performance test results of embodiment and comparative example are listed below:
It can be seen that by examples detailed above, the material obtained not only has excellent high-temperature behavior, but also wear-resistant fluidity can be
More general material is good.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details.
Claims (10)
1. a kind of heat-resistant antifriction PVC plastic, which is characterized in that the material including following parts by weight:
2. heat-resistant antifriction PVC plastic according to claim 1, which is characterized in that the high molecular polymer include 30~
40wt% medium density polyethylene and 60~70wt% polyethylene oxide.
3. heat-resistant antifriction PVC plastic according to claim 1, which is characterized in that the plasticizer is 17 fluorine pelargonic acids
Ethyl ester.
4. heat-resistant antifriction PVC plastic according to claim 1 or 3, which is characterized in that the stabilizer include 60~
70wt% magnesium stearate and 30~40wt% heptadecafluorodecyl triethoxysilane.
5. heat-resistant antifriction PVC plastic according to claim 4, which is characterized in that the filler includes 30~40wt% sulphur
Sour barium and 60~70wt% kaolinite.
6. heat-resistant antifriction PVC plastic according to claim 1, which is characterized in that the antioxidant includes 50~60wt%
Cadmium diamyldithiocarbamate and 40~50wt% phenyl-α-naphthylamine.
7. heat-resistant antifriction PVC plastic according to claim 1 or 6, which is characterized in that the lubricant include 30~
40wt% oleic acid and 60~70wt% rosin.
8. heat-resistant antifriction PVC plastic according to claim 1, which is characterized in that the modifying agent is the poly- isoamyl of cis- Isosorbide-5-Nitrae-
Diene rubber.
9. heat-resistant antifriction PVC plastic according to claim 5, which is characterized in that the barium sulfate and kaolinic partial size
For 80~100nm.
10. heat-resistant antifriction PVC plastic according to claim 1, which is characterized in that the number-average molecular weight of the polyvinyl chloride
For 52000~56000g/mol.
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| CN201910127092.2A CN109705498A (en) | 2019-02-20 | 2019-02-20 | Heat-resistant antifriction PVC plastic |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910127092.2A CN109705498A (en) | 2019-02-20 | 2019-02-20 | Heat-resistant antifriction PVC plastic |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006132452A1 (en) * | 2005-06-08 | 2006-12-14 | Ls Cable Ltd. | Halogen-free flame retardant composition for cable covering material and cable for railway vehicles using the same |
| CN103128945A (en) * | 2013-03-19 | 2013-06-05 | 佛山顾地塑胶有限公司 | Preparation method of heat-resistant PVC (polyvinyl chloride) casing pipe for buried high-voltage power cable |
| CN103524946A (en) * | 2013-10-17 | 2014-01-22 | 宁波一舟塑胶有限公司 | High-temperature-resistant thermoplastic polyvinyl chloride cable material and preparation method thereof |
-
2019
- 2019-02-20 CN CN201910127092.2A patent/CN109705498A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006132452A1 (en) * | 2005-06-08 | 2006-12-14 | Ls Cable Ltd. | Halogen-free flame retardant composition for cable covering material and cable for railway vehicles using the same |
| CN103128945A (en) * | 2013-03-19 | 2013-06-05 | 佛山顾地塑胶有限公司 | Preparation method of heat-resistant PVC (polyvinyl chloride) casing pipe for buried high-voltage power cable |
| CN103524946A (en) * | 2013-10-17 | 2014-01-22 | 宁波一舟塑胶有限公司 | High-temperature-resistant thermoplastic polyvinyl chloride cable material and preparation method thereof |
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Application publication date: 20190503 |