CN105400062A - Low friction coefficient and low smoke halogen-free cable material for optical cables, and preparation method thereof - Google Patents
Low friction coefficient and low smoke halogen-free cable material for optical cables, and preparation method thereof Download PDFInfo
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- CN105400062A CN105400062A CN201510997941.1A CN201510997941A CN105400062A CN 105400062 A CN105400062 A CN 105400062A CN 201510997941 A CN201510997941 A CN 201510997941A CN 105400062 A CN105400062 A CN 105400062A
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- low
- friction coefficient
- cable material
- optical cable
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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
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1835—Sheaths comprising abrasive charges
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/22—Halogen free composition
-
- 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
- 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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Insulated Conductors (AREA)
- Organic Insulating Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a low friction coefficient and low smoke halogen-free cable material for optical cables. The cow friction coefficient and low smoke halogen-free cable material for optical cables comprises, by weight, 35-55 parts of ethylene-vinyl acetate copolymer, 10-25 parts of linear low density polyethylene, 5-20 parts of ultrahigh molecular weight polyethylene, 5-15 parts of a compatilizer, 100-160 parts of a fire retardant, 0.8-2 parts of an antioxidant, 0.5-1.5 parts of a low friction agent and 0.5-3 parts of a coupling agent. The invention also discloses a preparation method of the low friction coefficient and low smoke halogen-free cable material for optical cables. The ultrahigh molecular weight polyethylene is added, so the hardness and the wear resistance of the cable material are improved; and ultrafine modified silicon powder is added to a system as the low friction agent, the low friction agent allows a surface to have a fine dimpling plane effect under a low dosage, and the friction coefficient and the contact area are simultaneously reduced to greatly reduce the friction coefficient of the integral cable material.
Description
Technical field
The present invention relates to a kind of optical cable low-friction coefficient electric cable material with low smoke and halogen free and preparation method thereof, particularly there is low-friction coefficient, the low-smoke non-halogen flame-retardant locomotive cable material of more excellent wear resisting property.
Background technology
FTTH is a kind of pattern of broadband access, FTTH network development needs to build inside cable in existing multitenant unit (MDU), and for existing subscriber unit, if adopt the scheme increasing new pipe-line, construction cost will certainly be made to increase, so generally all utilize existing raceway to realize the fiber cable laying added.For this reason novel covered wire cable arises at the historic moment, and it has and former inside cable identical characteristics, has excellent mounting characteristics simultaneously.
The low friction of the type covered wire cable sheath material is one of gordian technique, has also needed size little simultaneously, the advantages such as hardness is high, wear-resisting.In narrow and small pipeline space, directly optical cable can not be pushed in piping unit by the mode of traction, thus greatly reduce the time of laying and cost.
Have in prior art in order to avoid being added into as tetrafluoroethylene, the lubricants such as graphite cause overall mechanical properties decrease obvious, employing surface-coated one deck has the material compared with low-friction coefficient, as described in CN102956310A, but coating homogeneity can be there is in this technique, the problem of curtain coating stability, coating easily in use comes off simultaneously, causes frictional coefficient to increase.Matrix also will consider its hardness and wear resistance simultaneously, as: use styrenic elastomer as matrix resin in Japanese Unexamined Patent Publication 2001-031903 publication, then integral material hardness is lower, and wear resistance is poor, is not suitable with and constructs in the complex environment of poling.
Summary of the invention
An object of the present invention is to provide a kind of optical cable low-friction coefficient electric cable material with low smoke and halogen free, to solve defect of the prior art.
Two of object of the present invention is to provide the preparation method of the preparation method of this optical cable low-friction coefficient electric cable material with low smoke and halogen free.
The object of the invention is to be achieved through the following technical solutions.
A kind of optical cable low-friction coefficient electric cable material with low smoke and halogen free and preparation method thereof, is made up of the raw material of following parts by weight:
In a preferred embodiment of the invention, the vinyl acetate content in described ethylene-vinyl acetate copolymer is 28 ~ 40%; Its with GB/T3682-2000 method measure melt index for 2 ~ 6g/10min; Tensile strength is 25 ~ 30MPa, elongation 500 ~ 1000%.
In a preferred embodiment of the invention, the melt index that described linear low density polyethylene (LLDPE) measures with GB/T3682-2000 method is for 0.2 ~ 10g/10min; Tensile strength is 18 ~ 30MPa, elongation 650 ~ 1000%.
In a preferred embodiment of the invention, the viscosity-average molecular weight of described ultrahigh molecular weight polyethylene(UHMWPE) (UHMWPE) is 1,000,000 ~ 3,000,000; Tensile strength is 18 ~ 35MPa, elongation 350 ~ 600%.
In a preferred embodiment of the invention, described compatilizer comprises maleic anhydride graft PE (MAH-g-PE) or maleic anhydride graft EVA (MAH-g-EVA), the percentage of grafting of described maleic anhydride graft PE (MAH-g-PE) is 0.5 ~ 2%, and the melt index measured with GB/T3682-2000 method is for 0.5 ~ 3g/10min; The percentage of grafting of described maleic anhydride graft EVA (MAH-g-EVA) is 0.8-2.5%, and the melt index measured with GB/T3682-2000 method is for 0.5-3g/10min.
In a preferred embodiment of the invention, described fire retardant is that one or both in magnesium hydroxide and aluminium hydroxide are composite, and its median size is 0.8-3 μm.Described magnesium hydroxide and aluminium hydroxide can be long time without surface modification, also can be through surface modification, and the properties-correcting agent for magnesium hydroxide and Modified by Aluminum Hydroxide comprises (1) longer chain fatty acid and its esters: as stearic acid (sodium, zinc); (2) silane coupling agent: its general formula is RSiX3, in formula, R representative and polymer have the active function groups (as: oxygen base, vinyl, aminopropyl etc.) of avidity or response capacity; X represents the alkoxyl group (as: halogen, acyloxy etc.) that can be hydrolyzed.(3) titanate coupling agent.
In a preferred embodiment of the invention, described oxidation inhibitor is four (β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester or Tyox Bs.
In a preferred embodiment of the invention, described friction reducer is superfine modified silicon powder, its order number is 3000 order-8000 orders, and the properties-correcting agent for super-fine silicon micro-powder modification comprises (1) longer chain fatty acid and its esters: as stearic acid (sodium, zinc); (2) silane coupling agent: its general formula is RSiX3, in formula, R representative and polymer have the active function groups (as: oxygen base, vinyl, aminopropyl etc.) of avidity or response capacity; X represents the alkoxyl group (as: halogen, acyloxy etc.) that can be hydrolyzed.(3) titanate coupling agent.
In a preferred embodiment of the invention, described coupling agent is A-171 (vinyltrimethoxy silane) or L-6376 (γ-aminopropyl triethoxysilane).
The preparation process of above-mentioned optical cable low-friction coefficient electric cable material with low smoke and halogen free is:
(1) each raw material is weighed by said ratio;
(2) load weighted each raw material is placed in high-speed mixer mixing and obtains mixture in 4-8 minute;
(3) mixture step (2) prepared is sent into plasticizing in twin screw and is mediated, then enters single screw extrusion machine granulation; Wherein the processing temperature of twin screw is: transportation section 145-155 DEG C, melt zone 140-155 DEG C, mixing section 150-155 DEG C, exhaust section 145-155 DEG C, homogenizing zone 160-170 DEG C, head 160-165 DEG C; Singe screw temperature is: the first district 160-170 DEG C, the second district 160-170 DEG C, the 3rd district 160-170 DEG C, head 165-175 DEG C, the air-cooled rear packaging of pelletizing.
The present invention has following beneficial effect:
The present invention can improve hardness and the wear resistance of CABLE MATERIALS by adding ultrahigh molecular weight polyethylene(UHMWPE); Add in system using superfine modified silicon powder as friction reducer simultaneously, adding massfraction does not need too much, but the effect of surperficial tiny dimpling plane can be formed, reduce contact area by reduction frictional coefficient simultaneously and reach the greatly lower effect of Integral cable material frictional coefficient.
Embodiment
Technical characterstic of the present invention is set forth further below in conjunction with embodiment:
It is as follows that optical cable low-friction coefficient electric cable material with low smoke and halogen free of the present invention obtains mode:
In following preferred each embodiment, take starting components by table 1 proportioning respectively, be placed in high-speed mixer mixing 4-8 minute, secondly mixture is put into twin screw plasticizing and mediate, then enter single screw extrusion machine granulation.Wherein the processing temperature of twin screw is: transportation section 145-155 DEG C, melt zone 140-155 DEG C, mixing section 150-155 DEG C, exhaust section 145-155 DEG C, homogenizing zone 160-170 DEG C, head 160-165 DEG C; Singe screw temperature is: the first district 160-170 DEG C, the second district 160-170 DEG C, the 3rd district 160-170 DEG C, head 165-175 DEG C, the air-cooled rear packaging of pelletizing.
Table 1 is Example formulations: (unit for gram)
EVA (VA28%) purchased from American E.I.Du Pont Company 265 type product in table 1, EVA (VA40%) purchased from American E.I.Du Pont Company 40L-03 type product;
Linear low density polyethylene (LLDPE) is purchased from 7042 products of Sinopec Yangzi Petrochemical Co;
Ultrahigh molecular weight polyethylene(UHMWPE) (UHMWPE) is purchased from Shanghai chemical institute;
EVA-g-MAH purchased from American E.I.Du Pont Company C250 type product; PE-g-MAH is purchased from French Arkema 18319 type product;
Unmodified magnesium hydroxide purchased from American Ya Bao company H5 type product; Unmodified aluminium hydroxide purchased from American Ya Bao company 104-LEO type product; γ-aminopropyl triethoxysilane modified magnesium hydroxide purchased from American company H5IV type product; Stearic acid modified aluminium hydroxide is purchased from Henan Ke Wei flame-retarding new material company limited;
Titanic acid ester modification 7000 order silicon powder is purchased from Guangzhou Tong Da chemical engineering company limited; The silane-modified 5000 order silicon powders of vinyl three ('beta '-methoxy oxyethyl group) are purchased from Guangzhou Tong Da chemical engineering company limited;
Antioxidant 1010, anti-oxidant DLTP, coupling agent A-171, coupling agent L-6376 are commercially available
Table 2 is the test result of embodiment
Abrasion resistance test carries out testing according to the standard of GB/T3960-83 and calculates wear scar width and frictional coefficient, draws from embodiment: optical cable low-friction coefficient electric cable material with low smoke and halogen free provided by the invention has the low and feature that wear resisting property is superior of frictional coefficient.
Claims (18)
1. an optical cable low-friction coefficient electric cable material with low smoke and halogen free, is characterized in that: be made up of the raw material of following parts by weight:
2. a kind of optical cable low-friction coefficient electric cable material with low smoke and halogen free according to claim 1, is characterized in that: the vinyl acetate content in described ethylene-vinyl acetate copolymer is 28 ~ 40%; Its with GB/T3682-2000 method measure melt index for 2 ~ 6g/10min; Tensile strength is 25 ~ 30MPa, elongation 500 ~ 1000%.
3. a kind of optical cable low-friction coefficient electric cable material with low smoke and halogen free according to claim 1, is characterized in that: the melt index that described linear low density polyethylene (LLDPE) measures with GB/T3682-2000 method is for 0.2 ~ 10g/10min; Tensile strength is 18 ~ 30MPa, elongation 650 ~ 1000%.
4. a kind of optical cable low-friction coefficient electric cable material with low smoke and halogen free according to claim 1, is characterized in that: the viscosity-average molecular weight of described ultrahigh molecular weight polyethylene(UHMWPE) is 1,000,000 ~ 3,000,000; Tensile strength is 18 ~ 35MPa, elongation 350 ~ 600%.
5. optical cable low-friction coefficient electric cable material with low smoke and halogen free according to claim 1, is characterized in that: described compatilizer comprises maleic anhydride graft PE or maleic anhydride graft EVA.
6. optical cable low-friction coefficient electric cable material with low smoke and halogen free according to claim 5, is characterized in that: the percentage of grafting of described maleic anhydride graft PE is 0.5 ~ 2%, and the melt index measured with GB/T3682-2000 method is for 0.5 ~ 3g/10min.
7. optical cable low-friction coefficient electric cable material with low smoke and halogen free according to claim 5, is characterized in that: the percentage of grafting of described maleic anhydride graft EVA is 0.8-2.5%, and the melt index measured with GB/T3682-2000 method is for 0.5-3g/10min.
8. optical cable low-friction coefficient electric cable material with low smoke and halogen free according to claim 1, is characterized in that: described fire retardant is that one or both in magnesium hydroxide and aluminium hydroxide are composite, and its median size is 0.8-3 μm.
9. magnesium hydroxide according to claim 8 and aluminium hydroxide, it is characterized in that: described magnesium hydroxide and aluminium hydroxide are through surface modification, and the properties-correcting agent for magnesium hydroxide and Modified by Aluminum Hydroxide comprises longer chain fatty acid and its esters, silane coupling agent or titanate coupling agent.
10. magnesium hydroxide according to claim 9 and aluminium hydroxide, is characterized in that: described longer chain fatty acid and its esters comprise stearic acid, sodium stearate or Zinic stearas.
11. magnesium hydroxide according to claim 9 and aluminium hydroxides, is characterized in that: the general formula of described silane coupling agent is RSiX3, and R oxygen base, vinyl or aminopropyl in formula, X is halogen or acyloxy.
12. a kind of optical cable low-friction coefficient electric cable material with low smoke and halogen free according to claim 1, it is characterized in that: described oxidation inhibitor is four (β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester or Tyox Bs.
13. a kind of optical cable low-friction coefficient electric cable material with low smoke and halogen free according to claim 1, is characterized in that: described friction reducer is superfine modified silicon powder, its order number is 3000 order-8000 orders.
14. a kind of optical cable low-friction coefficient electric cable material with low smoke and halogen free according to claim 14, is characterized in that: the properties-correcting agent for super-fine silicon micro-powder modification comprises longer chain fatty acid and its esters, silane coupling agent or titanate coupling agent.
15. a kind of optical cable low-friction coefficient electric cable material with low smoke and halogen free according to claim 14, is characterized in that: described longer chain fatty acid and its esters comprise stearic acid, sodium stearate or Zinic stearas.
16. a kind of optical cable low-friction coefficient electric cable material with low smoke and halogen free according to claim 14, it is characterized in that: the general formula of described silane coupling agent is RSiX3, R oxygen base, vinyl or aminopropyl in formula, X is halogen or acyloxy.
17. a kind of optical cable low-friction coefficient electric cable material with low smoke and halogen free according to claim 1, is characterized in that: described coupling agent is A-171 or L-6376.
18. 1 kinds of methods preparing the optical cable low-friction coefficient electric cable material with low smoke and halogen free described in any one of claim 1 to 17 claim, is characterized in that: comprise the steps:
(1) each raw material is weighed by said ratio;
(2) load weighted each raw material is placed in high-speed mixer mixing and obtains mixture in 4-8 minute;
(3) mixture step (2) prepared is sent into plasticizing in twin screw and is mediated, then enters single screw extrusion machine granulation; Wherein the processing temperature of twin screw is: transportation section 145-155 DEG C, melt zone 140-155 DEG C, mixing section 150-155 DEG C, exhaust section 145-155 DEG C, homogenizing zone 160-170 DEG C, head 160-165 DEG C; Singe screw temperature is: the first district 160-170 DEG C, the second district 160-170 DEG C, the 3rd district 160-170 DEG C, head 165-175 DEG C, the air-cooled rear packaging of pelletizing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510997941.1A CN105400062A (en) | 2015-12-25 | 2015-12-25 | Low friction coefficient and low smoke halogen-free cable material for optical cables, and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510997941.1A CN105400062A (en) | 2015-12-25 | 2015-12-25 | Low friction coefficient and low smoke halogen-free cable material for optical cables, and preparation method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106146983A (en) * | 2016-08-02 | 2016-11-23 | 合肥文武信息技术有限公司 | A kind of communications cable material with excellent toughness |
| CN106220952A (en) * | 2016-08-02 | 2016-12-14 | 合肥文武信息技术有限公司 | A kind of polyethylene communications cable with absorption affinity and light stability |
| CN106373641A (en) * | 2016-11-12 | 2017-02-01 | 河南开启电力实业有限公司 | Double-capacity electric cable and manufacture method therefor |
| CN106750866A (en) * | 2016-12-22 | 2017-05-31 | 廊坊崔氏电缆材料有限公司 | A kind of high-elastic type low smoke halogen-free fire retardant polyolefin cable material and preparation method thereof |
| CN107254099A (en) * | 2017-08-02 | 2017-10-17 | 合肥安力电力工程有限公司 | A kind of heat-resistant fireproof cable sheath material and preparation method thereof |
| CN107652685A (en) * | 2017-11-21 | 2018-02-02 | 阚晓洁 | A kind of heat-resisting age inhibiting cable protective case and preparation method thereof |
| CN108359171A (en) * | 2018-03-01 | 2018-08-03 | 江苏中天科技股份有限公司 | A kind of low friction low-smoke non-halogen flame-retardant protecting sleeve of optical cable |
| CN109705510A (en) * | 2018-12-26 | 2019-05-03 | 上海至正道化高分子材料股份有限公司 | A kind of scratch resistance mill thin-wall locomotive fireproofing cable material without halide and preparation method thereof |
| CN112961424A (en) * | 2021-01-16 | 2021-06-15 | 江西江缆科技有限公司 | Halogen-free flame-retardant fireproof cable and preparation method thereof |
| CN114213743A (en) * | 2022-01-05 | 2022-03-22 | 四川安费尔高分子材料科技有限公司 | Production process of low-smoke halogen-free flame-retardant cable material |
| CN116925457A (en) * | 2023-04-23 | 2023-10-24 | 金发科技股份有限公司 | Low-friction polyolefin material and preparation method and application thereof |
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| CN102731897A (en) * | 2012-07-16 | 2012-10-17 | 江苏达胜高聚物有限公司 | High wear-resistant low-smoke halogen-free irradiation crosslinking sheathing material and preparation method thereof |
| CN104893089A (en) * | 2015-06-18 | 2015-09-09 | 上海至正道化高分子材料股份有限公司 | Low-smoke and halogen-free flame retardant material for optical cable covered with rubber and preparation method of low-smoke and halogen-free flame retardant material |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106146983A (en) * | 2016-08-02 | 2016-11-23 | 合肥文武信息技术有限公司 | A kind of communications cable material with excellent toughness |
| CN106220952A (en) * | 2016-08-02 | 2016-12-14 | 合肥文武信息技术有限公司 | A kind of polyethylene communications cable with absorption affinity and light stability |
| CN106373641A (en) * | 2016-11-12 | 2017-02-01 | 河南开启电力实业有限公司 | Double-capacity electric cable and manufacture method therefor |
| CN106373641B (en) * | 2016-11-12 | 2017-12-05 | 河南开启电力实业有限公司 | Times bulky cables and preparation method thereof |
| CN106750866A (en) * | 2016-12-22 | 2017-05-31 | 廊坊崔氏电缆材料有限公司 | A kind of high-elastic type low smoke halogen-free fire retardant polyolefin cable material and preparation method thereof |
| CN107254099A (en) * | 2017-08-02 | 2017-10-17 | 合肥安力电力工程有限公司 | A kind of heat-resistant fireproof cable sheath material and preparation method thereof |
| CN107652685A (en) * | 2017-11-21 | 2018-02-02 | 阚晓洁 | A kind of heat-resisting age inhibiting cable protective case and preparation method thereof |
| CN108359171A (en) * | 2018-03-01 | 2018-08-03 | 江苏中天科技股份有限公司 | A kind of low friction low-smoke non-halogen flame-retardant protecting sleeve of optical cable |
| CN109705510A (en) * | 2018-12-26 | 2019-05-03 | 上海至正道化高分子材料股份有限公司 | A kind of scratch resistance mill thin-wall locomotive fireproofing cable material without halide and preparation method thereof |
| CN109705510B (en) * | 2018-12-26 | 2021-09-21 | 上海至正新材料有限公司 | Scratch-resistant and abrasion-resistant low-smoke halogen-free flame-retardant cable material for thin-wall locomotive and preparation method thereof |
| CN112961424A (en) * | 2021-01-16 | 2021-06-15 | 江西江缆科技有限公司 | Halogen-free flame-retardant fireproof cable and preparation method thereof |
| CN114213743A (en) * | 2022-01-05 | 2022-03-22 | 四川安费尔高分子材料科技有限公司 | Production process of low-smoke halogen-free flame-retardant cable material |
| CN116925457A (en) * | 2023-04-23 | 2023-10-24 | 金发科技股份有限公司 | Low-friction polyolefin material and preparation method and application thereof |
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Application publication date: 20160316 |