CN108264714A - High-weatherability cable cover(ing) and preparation method thereof - Google Patents
High-weatherability cable cover(ing) and preparation method thereof Download PDFInfo
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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
- C08L27/12—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 fluorine atoms
- C08L27/18—Homopolymers or copolymers or tetrafluoroethene
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- 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
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- 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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- 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
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- 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
- C08K2201/011—Nanostructured additives
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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
- 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
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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
- 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
-
- 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
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
Abstract
The invention discloses a kind of high-weatherability cable cover(ing) and preparation method thereof, which is included modified polytetrafluoroethylresin resin, ethylene-vinyl acetate copolymer, butadiene rubber, ethyl acetate, acrylate, dibutyl phthalate, dimethyl silicone polymer, epoxidation triglyceride, citrate, vulcanization accelerator TMTD and styrene according to 100：20‑30：5‑10：30‑40：10‑15：25‑35：3‑5：6‑10：1‑5：3‑5：5 15 weight ratio carries out mixing, mediates obtained mixture M 1, by 1 extruding pelletization of mixture M, processing；Wherein, the modified polytetrafluoroethylresin resin by zinc oxide, aramid fiber, asbestos fibre, nano-titanium dioxide and it is carbon black modified be made.The high-weatherability cable cover(ing) has excellent wear-resisting and ageing-resistant performance.
Description
Technical field
The present invention relates to cable production arts, and in particular, to a kind of high-weatherability cable cover(ing) and preparation method thereof.
Background technology
It is exactly to be made of the conductor and outsourcing insulating protective layer of one or more mutually insulated for cable is popular, by electric power
Or information is transferred to the conducting wire at another place at one.With the rapid development of economy, more and more places need cable to transmit
Electric power or other information, therefore also have tightened up requirement to the manufacture of cable.Protective coverings of cable is the indispensable knot of cable
Structure part plays a part of protecting cable, ensures the energization safety of cable, the isolation of the media such as cable core and water, air is allowed to avoid
There is leaky.
The especially outdoors cable such as field, military is higher to its wear-resisting property and weatherability requirement, it is desirable that cable
Outer jacket has good low temperature resistant, high temperature and wear-resisting property and ageing-resistant performance.
Invention content
The object of the present invention is to provide a kind of high-weatherability cable cover(ing) and preparation method thereof, the high-weatherability cable cover(ing)s
Preparation method it is simple for process, and cable cover(ing) obtained have excellent wear-resisting and ageing-resistant performance.
To achieve these goals, the present invention provides a kind of that modified polytetrafluoroethylresin resin, ethene-vinyl acetate is common
Polymers, butadiene rubber, ethyl acetate, acrylate, dibutyl phthalate, dimethyl silicone polymer, epoxidation glycerine three
Acid esters, citrate, vulcanization accelerator TMTD and styrene are according to 100：20-30：5-10：30-40：10-15：25-35：3-5：
6-10：1-5：3-5：The weight ratio of 5-15 carries out mixing, mediates obtained mixture M 1, by 1 extruding pelletization of mixture M, adds
Work；
Wherein, the modified polytetrafluoroethylresin resin by zinc oxide, aramid fiber, asbestos fibre, nano-titanium dioxide and
It is carbon black modified to be made.
The present invention also provides high-weatherability cable cover(ing)s made from a kind of above-mentioned preparation method.
Through the above technical solutions, the present invention is by using zinc oxide, aramid fiber, asbestos fibre, nano-titanium dioxide
Processing is modified to polytetrafluoroethylene (PTFE) with carbon black, further improves the wear-resisting property and weather resistance of obtained cable cover(ing).
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Specific embodiment
The specific embodiment of the present invention is described in detail below.It is it should be understood that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
The endpoint of disclosed range and any value are not limited to the accurate range or value herein, these ranges or
Value should be understood to comprising the value close to these ranges or value.For numberical range, between the endpoint value of each range, respectively
It between the endpoint value of a range and individual point value and can be individually combined with each other between point value and obtain one or more
New numberical range, these numberical ranges should be considered as specific open herein.
A kind of preparation method of high-weatherability cable cover(ing) is provided in the present invention, the preparation method includes：
By modified polytetrafluoroethylresin resin, ethylene-vinyl acetate copolymer, butadiene rubber, ethyl acetate, acrylate,
Dibutyl phthalate, dimethyl silicone polymer, epoxidation triglyceride, citrate, vulcanization accelerator TMTD and benzene
Ethylene is according to 100：20-30：5-10：30-40：10-15：25-35：3-5：6-10：1-5：3-5：The weight ratio of 5-15 is mixed
Mixture M 1 is made in even, kneading, by 1 extruding pelletization of mixture M, processing；
Wherein, the modified polytetrafluoroethylresin resin by zinc oxide, aramid fiber, asbestos fibre, nano-titanium dioxide and
It is carbon black modified to be made.
In above-mentioned technical proposal, the condition of the kneading can select in wide range, but in order to further improve
The weather resistance of high-weatherability cable cover(ing) obtained, it is preferable that the kneading meets the following conditions：The temperature of kneading is 160-
180 DEG C, the time of kneading is 30-40min.
In above-mentioned technical proposal, the condition of the extruding pelletization can select in wide range, but in order to further
The weather resistance of high-weatherability cable cover(ing) made from raising, it is preferable that the temperature of the extruding pelletization is 195-200 DEG C.
In above-mentioned technical proposal, the preparation method of modified polytetrafluoroethylresin resin can there are many selecting, but in order into
The weather resistance of cable cover(ing) made from the raising of one step, it is preferable that the modified polytetrafluoroethylresin resin is made by following methods：
1) by zinc oxide, aramid fiber, asbestos fibre, nano-titanium dioxide and carbon black it is agitated, mixing, add poly- four
Vinyl fluoride ball milling obtains batch mixing；
2) the batch mixing cold moudling, sintering curing postcooling to room temperature, polishing processing are obtained into the cable with changing
Property polytetrafluoroethylene (PTFE).
In above-mentioned preparation method, the condition of the cold moudling can select in wide range, but in order to improve system
Obtain the weather resistance of modified Teflon, it is preferable that the cold moudling meets the following conditions：Pressure is 40-50MPa, temperature
It is 20-30 DEG C to spend, time 40-60min.
In above-mentioned technical proposal, the condition of the sintering curing can select in wide range, but in order to improve system
Obtain the weather resistance of modified Teflon, it is preferable that the sintering curing meets the following conditions：From at room temperature with 50-60 DEG C/
The heating rate of h is warming up to 180 DEG C, is then warming up to 350-360 DEG C and at 350-360 DEG C with the heating rate of 20-30 DEG C/h
Keep the temperature 2-4h；Finally, it is cooled to 30-40 DEG C with 50-60 DEG C/h rate of temperature fall.
In above-mentioned technical proposal, the condition of the stirring can select in wide range, but change to improve to be made
The efficiency of property polytetrafluoroethylene (PTFE), it is preferable that the condition of the stirring is：Rotating speed is 3000-5000rpm, time 30-50min.
In above-mentioned technical proposal, in order to further improve the weatherability of modified Teflon obtained, it is preferable that into
Before the row step 1), the asbestos fibre needs to carry out following pre-process：
The asbestos fibre is placed in Silane coupling reagent KH-570 solution, heat after 1-2h, drying is impregnated at 25-30 DEG C
Processing activation 1-2h.
During being pre-processed to asbestos fibre, the condition of the drying can select in wide range, but
It is the efficiency in order to improve pretreatment, it is preferable that the condition of the drying is：Temperature is 50-70 DEG C, time 3-4h.
During being pre-processed to asbestos fibre, the temperature of the heat treatment activation can be selected in wide range
It selects, but in order to improve the weather resistance of the efficiency of pretreatment and asbestos fibre, it is preferable that the temperature of the heat treatment activation
It is 110-120 DEG C.
In the above-mentioned technical solutions, the specific dosage of each raw material can select in wide range, but in order to further
The weatherability and wear-resisting property of modified Teflon made from raising, it is preferable that the polytetrafluoroethylene (PTFE), zinc oxide, aramid fiber
Fiber, asbestos fibre, nano-titanium dioxide and carbon black weight proportion be 100：5-10：3-6：5-10：10-15：3-8.
High-weatherability cable cover(ing) made from a kind of above-mentioned preparation method is additionally provided in the present invention.
The present invention will be described in detail by way of examples below.
Preparation example 1
1) zinc oxide, aramid fiber, asbestos fibre, nano-titanium dioxide and carbon black mixed, stirred in 3000rpm
50min adds polytetrafluoroethylene (PTFE) ball milling and obtains batch mixing；Polytetrafluoroethylene (PTFE) used, aramid fiber, asbestos fibre, is received zinc oxide
The weight ratio of rice titanium dioxide and carbon black is 100：5：3：5：10：3；
2) by the batch mixing pressure for 40MPa, cold moudling 60min at 20 DEG C；Then, from 20 DEG C of room temperature with 50
DEG C/heating rate of h is warming up to 180 DEG C, then 350 DEG C are warming up to the heating rate of 20 DEG C/h and keep the temperature 2h at 350 DEG C；Most
Afterwards, 30 DEG C of sintering curing postcooling to 20 DEG C of room temperature, polishing processing is cooled to 50 DEG C/h rate of temperature fall and obtains the electricity
Cable modified Teflon, is denoted as W1；
Wherein, before the step 1) is carried out, the asbestos fibre needs to carry out following pre-process：
The asbestos fibre (10 μm) is placed in Silane coupling reagent KH-570 solution, at 50 DEG C after immersion 2h at 25 DEG C
Dry 4h, then in 110 DEG C of heat treatment activation 2h.
Preparation example 2
1) zinc oxide, aramid fiber, asbestos fibre, nano-titanium dioxide and carbon black mixed, stirred in 4000rpm
40min adds polytetrafluoroethylene (PTFE) ball milling and obtains batch mixing；Polytetrafluoroethylene (PTFE) used, aramid fiber, asbestos fibre, is received zinc oxide
The weight ratio of rice titanium dioxide and carbon black is 100：8：5：8：13：6；
2) by the batch mixing pressure for 45MPa, cold moudling 50min at 25 DEG C；Then, from 25 DEG C of room temperature with 55
DEG C/heating rate of h is warming up to 180 DEG C, then 350 DEG C are warming up to the heating rate of 25 DEG C/h and keep the temperature 3h at 350 DEG C；Most
Afterwards, 40 DEG C of sintering curing postcooling to 30 DEG C of room temperature, polishing processing is cooled to 55 DEG C/h rate of temperature fall and obtains the electricity
Cable modified Teflon, is denoted as W2；
Wherein, before the step 1) is carried out, the asbestos fibre needs to carry out following pre-process：
The asbestos fibre (15 μm) is placed in Silane coupling reagent KH-570 solution, at 60 DEG C after immersion 1h at 30 DEG C
Dry 4h, then in 120 DEG C of heat treatment activation 1h.
Preparation example 3
1) zinc oxide, aramid fiber, asbestos fibre, nano-titanium dioxide and carbon black mixed, stirred in 5000rpm
30min adds polytetrafluoroethylene (PTFE) ball milling and obtains batch mixing；Polytetrafluoroethylene (PTFE) used, aramid fiber, asbestos fibre, is received zinc oxide
The weight ratio of rice titanium dioxide and carbon black is 100：10：6：10：15：8；
2) by the batch mixing pressure for 50MPa, cold moudling 40min at 30 DEG C；Then, from 30 DEG C of room temperature with 60
DEG C/heating rate of h is warming up to 180 DEG C, then 350 DEG C are warming up to the heating rate of 30 DEG C/h and keep the temperature 2h at 350 DEG C；Most
Afterwards, 40 DEG C of sintering curing postcooling to 30 DEG C of room temperature, polishing processing is cooled to 60 DEG C/h rate of temperature fall and obtains the electricity
Cable modified Teflon, is denoted as W3；
Wherein, before the step 1) is carried out, the asbestos fibre needs to carry out following pre-process：
The asbestos fibre (15 μm) is placed in Silane coupling reagent KH-570 solution, at 70 DEG C after immersion 1h at 30 DEG C
Dry 3h, then in 120 DEG C of heat treatment activation 1h.
Preparation example 4
Cable modified Teflon is made in method according to preparation example 1, is denoted as W4；The difference is that before step 1)
Asbestos fibre is not pre-processed.
Preparation example 5
Cable modified Teflon is made in method according to preparation example 1, is denoted as W5；The difference is that described in step 2)
The heating rate of batch mixing from direct 50 DEG C/h at 20 DEG C of room temperature are warming up to 350 DEG C of heat preservation 2h.
Preparation example 6
Cable modified Teflon is made in method according to preparation example 1, is denoted as W6；The difference is that do not add in step 1)
Enter zinc oxide.
Preparation example 7
Cable modified Teflon is made in method according to preparation example 1, is denoted as W7；The difference is that do not add in step 1)
Enter aramid fiber.
Preparation example 8
Cable modified Teflon is made in method according to preparation example 1, is denoted as W8；The difference is that do not add in step 1)
Enter asbestos fibre.
Preparation example 9
Cable modified Teflon is made in method according to preparation example 1, is denoted as W9；The difference is that do not add in step 1)
Enter carbon black.
Embodiment 1
By modified polytetrafluoroethylresin resin W1, ethylene-vinyl acetate copolymer, butadiene rubber, ethyl acetate, acrylic acid
Ester, dibutyl phthalate, dimethyl silicone polymer, epoxidation triglyceride, citrate, vulcanization accelerator TMTD and
Styrene is according to 100：20：5：30：10：25：3：6：1：3：5 weight ratio carries out mixing, is made mixed in 160 DEG C of kneading 40min
Object M1 is closed, high-weatherability cable cover(ing) is made in 195 DEG C of extruding pelletizations, processing in the mixture M 1；It is denoted as A1.
Embodiment 2
By modified polytetrafluoroethylresin resin W2, ethylene-vinyl acetate copolymer, butadiene rubber, ethyl acetate, acrylic acid
Ester, dibutyl phthalate, dimethyl silicone polymer, epoxidation triglyceride, citrate, vulcanization accelerator TMTD and
Styrene is according to 100：25：8：35：12：30：4：8：3：4：10 weight ratio carries out mixing, is made mixed in 170 DEG C of kneading 35min
Object M1 is closed, high-weatherability cable cover(ing) is made in 200 DEG C of extruding pelletizations, processing in the mixture M 1；It is denoted as A2.
Embodiment 3
By modified polytetrafluoroethylresin resin W3, ethylene-vinyl acetate copolymer, butadiene rubber, ethyl acetate, acrylic acid
Ester, dibutyl phthalate, dimethyl silicone polymer, epoxidation triglyceride, citrate, vulcanization accelerator TMTD and
Styrene is according to 100：30：10：40：15：35：5：10：5：5：15 weight ratio carries out mixing, is made in 180 DEG C of kneading 30min
High-weatherability cable cover(ing) is made in 200 DEG C of extruding pelletizations, processing in the mixture M 1 by mixture M 1；It is denoted as A3.
Embodiment 4
High-weatherability cable cover(ing) is prepared Following the procedure of Example 1, is denoted as A4, the difference is that using modified polytetrafluoroethyl-ne
Olefine resin W4 replaces W1.
Embodiment 5
High-weatherability cable cover(ing) is prepared Following the procedure of Example 1；A5 is denoted as, the difference is that using modified polytetrafluoroethyl-ne
Olefine resin W5 replaces W1.
Comparative example 1
High-weatherability cable cover(ing) is prepared Following the procedure of Example 1, is denoted as D1；The difference is that use modified polytetrafluoroethyl-ne
Olefine resin W6 replaces W1.
Comparative example 2
High-weatherability cable cover(ing) is prepared Following the procedure of Example 1, is denoted as D2；The difference is that use modified polytetrafluoroethyl-ne
Olefine resin W7 replaces W1.
Comparative example 3
High-weatherability cable cover(ing) is prepared Following the procedure of Example 1, is denoted as D3；The difference is that use modified polytetrafluoroethyl-ne
Olefine resin W8 replaces W1.
Comparative example 4
High-weatherability cable cover(ing) is prepared Following the procedure of Example 1, is denoted as D4；The difference is that use modified polytetrafluoroethyl-ne
Olefine resin W9 replaces W1.
Detect example 1
It is electric with high-weatherability by the high temperature deformation temperature (DEG C) of above-mentioned A1-A5 and D1-D4 and low temperature deformation temperature (DEG C)
On the basis of compression strength during 25 DEG C of oversheath of cable sheath, its compression strength then is detected in the conditionity of high temperature and low temperature,
Once the difference in change of compression strength, to reach temperature if 10% at this time be high temperature deformation temperature (DEG C) or low temperature deformation temperature (DEG C).
Table 1
| High temperature deformation temperature (DEG C) | Low temperature deformation temperature (DEG C) | |
| A1 | 264 | -17 |
| A2 | 262 | -16 |
| A3 | 268 | -16 |
| A4 | 242 | -10 |
| A5 | 245 | -11 |
| D1 | 241 | -9 |
| D2 | 185 | -8 |
| D3 | 180 | -3 |
| D4 | 188 | -2 |
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above
Detail, within the scope of the technical concept of the present invention, a variety of simple variants can be carried out to technical scheme of the present invention, this
A little simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (10)
1. a kind of preparation method of high-weatherability cable cover(ing), which is characterized in that the preparation method includes：
By modified polytetrafluoroethylresin resin, ethylene-vinyl acetate copolymer, butadiene rubber, ethyl acetate, acrylate, adjacent benzene
Dibutyl carboxylic acid, dimethyl silicone polymer, epoxidation triglyceride, citrate, vulcanization accelerator TMTD and styrene
According to 100：20-30：5-10：30-40：10-15：25-35：3-5：6-10：1-5：3-5：The weight ratio of 5-15 carries out mixing, pinches
It closes and mixture M 1 is made, by 1 extruding pelletization of mixture M, processing；
Wherein, the modified polytetrafluoroethylresin resin is by zinc oxide, aramid fiber, asbestos fibre, nano-titanium dioxide and carbon black
It is modified to be made.
2. preparation method according to claim 1, wherein, the kneading meets the following conditions：The temperature of kneading is 160-
180 DEG C, the time of kneading is 30-40min.
3. preparation method according to claim 1, wherein, the temperature of the extruding pelletization is 195-200 DEG C.
4. preparation method according to claim 1, wherein, the modified polytetrafluoroethylresin resin is made by following methods：
1) by zinc oxide, aramid fiber, asbestos fibre, nano-titanium dioxide and carbon black it is agitated, mixing, add polytetrafluoroethyl-ne
Alkene ball milling obtains batch mixing；
2) the batch mixing cold moudling, sintering curing postcooling to room temperature, polishing processing are obtained the cable and is modified and gathered
Tetrafluoroethene.
5. preparation method according to claim 4, wherein, the cold moudling meets the following conditions：Pressure is 40-
50MPa, temperature are 20-30 DEG C, time 40-60min.
6. preparation method according to claim 4, wherein, the sintering curing meets the following conditions：From at room temperature with 50-
The heating rate of 60 DEG C/h is warming up to 180 DEG C, is then warming up to 350 DEG C and in 350 DEG C of heat preservations with the heating rate of 20-30 DEG C/h
2-4h；Finally, it is cooled to 30-40 DEG C with 50-60 DEG C/h rate of temperature fall.
7. preparation method according to claim 4, wherein, the condition of the stirring is：Rotating speed is 3000-5000rpm, when
Between be 30-50min.
8. preparation method according to claim 4, wherein, before the step 1) is carried out, the asbestos fibre need into
Row is following to be pre-processed：
The asbestos fibre is placed in Silane coupling reagent KH-570 solution, is heat-treated after 1-2h, drying are stirred at 25-30 DEG C
Activate 1-2h；
Preferably, the condition of the drying is：Temperature is 50-70 DEG C, time 3-4h；
It is further preferred that the temperature of the heat treatment activation is 110-120 DEG C.
9. preparation method according to claim 8, wherein, the polytetrafluoroethylene (PTFE), zinc oxide, aramid fiber, asbestos are fine
The weight proportion of dimension, nano-titanium dioxide and carbon black is 100：5-10：3-6：5-10：10-15：3-8.
10. a kind of high-weatherability cable cover(ing) is made as the preparation method described in any one in claim 1-9.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117612777A (en) * | 2023-11-28 | 2024-02-27 | 亿驰电线电缆有限公司 | Wear-resistant pressure-resistant cable and preparation method thereof |
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- 2018-01-15 CN CN201810035007.5A patent/CN108264714A/en active Pending
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|---|---|---|---|---|
| CN103275448A (en) * | 2013-06-25 | 2013-09-04 | 孟红琳 | Preparation method of modified packing ion enhanced polytetrafluoroethylene composite |
| CN107254097A (en) * | 2017-06-22 | 2017-10-17 | 芜湖航天特种电缆厂股份有限公司 | High-weatherability outdoor cable oversheath and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117612777A (en) * | 2023-11-28 | 2024-02-27 | 亿驰电线电缆有限公司 | Wear-resistant pressure-resistant cable and preparation method thereof |
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Application publication date: 20180710 |