CN107141663A - Corrosion-resistant composite cable insulating materials in field and preparation method thereof - Google Patents
Corrosion-resistant composite cable insulating materials in field and preparation method thereof Download PDFInfo
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- CN107141663A CN107141663A CN201710484642.7A CN201710484642A CN107141663A CN 107141663 A CN107141663 A CN 107141663A CN 201710484642 A CN201710484642 A CN 201710484642A CN 107141663 A CN107141663 A CN 107141663A
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/22—Component parts, details or accessories; Auxiliary operations
- B29B7/28—Component parts, details or accessories; Auxiliary operations for measuring, controlling or regulating, e.g. viscosity control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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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
- H01B3/445—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 from vinylfluorides or other fluoroethylenic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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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
- C08K2003/221—Oxides; Hydroxides of metals of rare earth metal
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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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- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
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- Organic Insulating Materials (AREA)
Abstract
The invention discloses a kind of preparation method of the corrosion-resistant composite cable insulating materials in field, it is characterised in that comprises the following steps：(1) fluorubber, carbon black, tetraethyl orthosilicate, dimethicone, polyvinyl alcohol, carbon fiber are subjected to a banburying, obtain a banburying thing；(2) banburying thing, white carbon, rare earth oxide and zinc oxide are subjected to secondary banburying, obtain secondary banburying thing；(3) secondary banburying thing is extruded in extruder；Wherein, the temperature of secondary banburying is higher than the temperature of a banburying 20 70 DEG C.The present invention is by banburying twice and once extrudes, especially in the case of high 20 70 DEG C of the mixing temperature of secondary mixing temperature than one time, the composite cable insulating materials intensity and corrosion resistance of preparation are preferable, moreover, the preparation method of the composite cable insulating materials is simple, it is easy to spread, with higher application value.
Description
Technical field
The present invention relates to composite cable insulating materials, in particular it relates to a kind of corrosion-resistant composite cable insulating materials in field
And preparation method thereof.
Background technology
At present, with the development of science and technology, either industry or the daily life of the mankind, towards electrified side
To development, cable is then in industry and power domain, and its status is also gradually increased.Cable have power cable, control cable,
Compensating cable, shielded cable, high-temperature cable, computer cable, signal cable, coaxial cable, fire-resisting cable, cable for ship, aluminium
Alloy cable etc..Cable is typically by several or the cable of at least two stranded similar ropes of several groups of every group of wires,
Mutually insulated between every group of wire, and be often twisted into around a center, whole outside is surrounded by the sealing sheath of high-insulation, uses
To connect circuit, electrical equipment etc..
For the cable in field, because instrument line can be used out of doors, and often movement is needed, the intensity to cable will
Ask high.In particular with the appearance of haze phenomenon in recent years, the variation of air ambient, no matter overhead cable or buried cable it is equal
Influenceed by certain, the harmful substance in air ambient increases, overhead cable is in surface in such air for a long time
Some mottlings that are corroded occur, the life-span for shortening cable largely, therefore improve the intensity of cable insulation material
And corrosion resistance, it is current urgent problem to be solved.
The content of the invention
The invention aims to solve the composite cable insulating materials low intensity, not corrosion-resistant etc. of prior art presence
Technical problem, and a kind of high intensity provided and corrosion resistant composite cable insulating materials and preparation method thereof.
To achieve these goals, the present invention provides a kind of preparation side of the corrosion-resistant composite cable insulating materials in field
Method, comprises the following steps：(1) fluorubber, carbon black, tetraethyl orthosilicate, dimethicone, polyvinyl alcohol, carbon fiber are carried out one
Secondary banburying, obtains a banburying thing；(2) banburying thing, white carbon, rare earth oxide and zinc oxide are subjected to secondary banburying, obtained
Secondary banburying thing；(3) secondary banburying thing is extruded in extruder；Wherein, temperature of the temperature of secondary banburying than a banburying
It is high 20-70 DEG C.
The present invention also provides a kind of field corrosion-resistant composite cable insulating materials, is prepared according to previously described preparation method
Obtain.
By above-mentioned technical proposal, the present invention by control the corrosion-resistant composite cable insulating materials in field processing step and
Raw material is constituted, and a kind of corrosion-resistant composite cable insulating materials in field is prepared for using the technique of secondary banburying and extrusion.In routine
Among understanding, multiple banburying and extrusion are likely to result in the molecular chain rupture of the macromolecular raw material such as rubber, cause the intensity of finished product
Decline, at the same time, multiple banburying and extrusion may result in the cracking of material, generate small-molecule substance, make the intensity of material
With corrosion resistance reduction.And in the present invention, it was discovered that the composite cable insulating materials dispensing of the present invention is through banburying twice and once
Extrusion, especially in the case of than one time high 20-70 DEG C of mixing temperature of secondary mixing temperature, the composite cable insulation material of preparation
Not only material intensity and corrosion resistance are not reduced, on the contrary with being obviously improved.Moreover, the system of the composite cable insulating materials
Preparation Method is simple, it is easy to promote, with higher application value.
Other features and advantages of the present invention will be described in detail in subsequent embodiment part.
Embodiment
The embodiment to the present invention is described in detail below.It should be appreciated that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to limit the invention.
The end points and any value of disclosed scope are not limited to the accurate scope or value herein, these scopes or
Value should be understood to comprising the value close to these scopes or value.For number range, between the endpoint value of each scope, respectively
It can be combined with each other between the endpoint value of individual scope and single point value, and individually between point value and obtain one or more
New number range, these number ranges should be considered as specific open herein.
The present invention provides a kind of preparation method of the corrosion-resistant composite cable insulating materials in field, comprises the following steps：(1) will
Fluorubber, carbon black, tetraethyl orthosilicate, dimethicone, polyvinyl alcohol, carbon fiber carry out a banburying, obtain a banburying thing；
(2) banburying thing, white carbon, rare earth oxide and zinc oxide are subjected to secondary banburying, obtain secondary banburying thing；(3) will be secondary
Banburying thing is extruded in extruder；Wherein, the temperature of secondary banburying is higher than the temperature of a banburying 20-70 DEG C.
By above-mentioned technical proposal, the present invention by control the corrosion-resistant composite cable insulating materials in field processing step and
Raw material is constituted, and a kind of corrosion-resistant composite cable insulating materials in field is prepared for using the technique of secondary banburying and extrusion.In routine
Among understanding, multiple banburying and extrusion are likely to result in the molecular chain rupture of the macromolecular raw material such as rubber, cause the intensity of finished product
Decline, at the same time, multiple banburying and extrusion may result in the cracking of material, generate small-molecule substance, make the intensity of material
With corrosion resistance reduction.And in the present invention, it was discovered that the composite cable insulating materials dispensing of the present invention is through banburying twice and once
Extrusion, especially in the case of than one time high 20-70 DEG C of mixing temperature of secondary mixing temperature, the composite cable insulation material of preparation
Not only material intensity and corrosion resistance are not reduced, on the contrary with being obviously improved.Moreover, the system of the composite cable insulating materials
Preparation Method is simple, it is easy to promote, with higher application value.
In the above-mentioned technical solutions, fluorubber can have multiple choices, such as selection model fluororubber 23, fluororubber 26,
Fluororubber 246, fluorubber TP etc., be can be achieved in the present invention, embodiment later, and selection fluororubber 26 is illustrated.
Individual in the above-mentioned technical solutions, polyvinyl alcohol can have multiple choices, and such as alcoholysis degree is 78%, 88%, 98%, is gathered
It is right for the superelevation degree of polymerization (molecular weight 25~300,000), high polymerization degree (molecular weight 17-22 ten thousand), the middle degree of polymerization (molecular weight 12~
15 polyvinyl alcohol ten thousand) with low polymerization degree (2.5~3.5 ten thousand).In order that composite cable insulating materials have higher intensity and
Preferable corrosion resistance, it is preferable that preferably, polyvinyl alcohol is that mean molecule quantity is 17-22 ten thousand, and alcoholysis degree is 78-88%'s
Polyvinyl alcohol of high degree of polymerization.
In the above-mentioned technical solutions, carbon fiber can have multiple choices, for example, select universal, high-strength, middle mould high-strength
Type, high model and superelevation model carbon fiber, can be achieved in the present invention, embodiment later, select universal polypropylene nitrile
Carbon fiber is illustrated.
In order that obtained composite cable insulating materials has higher intensity and preferable corrosion resistance, it is highly preferred that
The temperature of secondary banburying is higher than the temperature of a banburying 30-50 DEG C.
In the above-mentioned technical solutions, the temperature of a banburying can be selected in relative broad range, in order that obtained compound electric
Cable insulating materials has higher intensity and preferable corrosion resistance, it is preferable that the temperature of a banburying is 120~140 DEG C.
In the above-mentioned technical solutions, the temperature of secondary banburying can be selected in relative broad range, in order that obtained compound electric
Cable insulating materials has higher intensity and preferable corrosion resistance, it is preferable that the temperature of secondary banburying is 160~190 DEG C.
In the above-mentioned technical solutions, the temperature of a banburying can be selected in relative broad range, in order that obtained compound electric
Cable insulating materials has higher intensity and preferable corrosion resistance, it is highly preferred that the temperature of a banburying is 125~135 DEG C.
In the above-mentioned technical solutions, the temperature of secondary banburying can be selected in relative broad range, in order that obtained compound electric
Cable insulating materials has higher intensity and preferable corrosion resistance, further, and the temperature of secondary banburying is 165~175 DEG C.
Wherein, the time of banburying can adjust in relative broad range, in order that obtained composite cable insulating materials have compared with
High intensity and preferable corrosion resistance, while in order to improve operating efficiency, it is preferable that the time of a banburying is 20-
30min。
Moreover, the time of secondary banburying can adjust in relative broad range, in order that obtained composite cable insulation material
Material has higher intensity and preferable corrosion resistance, while in order to improve operating efficiency, it is highly preferred that the time of secondary banburying
For 32-42min.
In the above-mentioned technical solutions, the order of addition of material can be selected in relative broad range, in order that the obtained field
Corrosion-resistant composite cable insulating materials intensity is high and corrosion-resistant, it is preferable that the order of addition of material is successively in step (1)：Fluorine
Rubber, carbon black, tetraethyl orthosilicate, polyvinyl alcohol, dimethicone, carbon fiber.
Further, in order that the obtained corrosion-resistant composite cable insulating materials intensity in field is high and corrosion-resistant, more
Preferably, in step (1), from being started banburying, carbon is added after polyvinyl alcohol, banburying 14-18min are added after banburying 8-10min
Fiber.
In the above-mentioned technical solutions, the amount of each component can be selected in relative broad range, in order that the obtained field corrosion resistant
Lose composite cable insulating materials intensity high and corrosion-resistant, it is preferable that in parts by weight, in parts by weight, 100 parts of fluorubber, charcoal
It is black 10-20 parts, 2-3 parts of tetraethyl orthosilicate, 3-4 parts of dimethicone, 10-15 parts of carbon fiber, 20-30 parts of polyvinyl alcohol, hard charcoal
It is black 5-8 parts, 0.5-0.8 parts of rare earth oxide, 3-5 parts of zinc oxide.
In the above-mentioned technical solutions, rare earth oxide can have multiple choices, in order to which the high and corrosion resistant open country of intensity is made
Outer corrosion-resistant composite cable insulating materials, it is preferable that the rare earth oxide be cerium oxide, praseodymium oxide, gadolinium oxide, dysprosia and
In one or more in erbium oxide, embodiment later, illustrated with cerium oxide.
In the above-mentioned technical solutions, extrusion condition can be selected in relative broad range, in order that the obtained field is corrosion-resistant
Composite cable insulating materials intensity is high and corrosion-resistant, it is preferable that extrusion temperature is 190~240 DEG C, and revolution is 25-35r/min.
The present invention also provides a kind of field corrosion-resistant composite cable insulating materials, is prepared according to previously described preparation method
Obtain.
By above-mentioned technical proposal, the present invention by control the corrosion-resistant composite cable insulating materials in field processing step and
Raw material is constituted, and a kind of corrosion-resistant composite cable insulating materials in field is prepared for using the technique of secondary banburying and extrusion.In routine
Among understanding, multiple banburying and extrusion are likely to result in the molecular chain rupture of the macromolecular raw material such as rubber, cause the intensity of finished product
Decline, at the same time, multiple banburying and extrusion may result in the cracking of material, generate small-molecule substance, make the intensity of material
With corrosion resistance reduction.And in the present invention, it was discovered that the composite cable insulating materials dispensing of the present invention is through banburying twice and once
Extrusion, especially in the case of than one time high 20-70 DEG C of mixing temperature of secondary mixing temperature, the composite cable insulation material of preparation
Not only material intensity and corrosion resistance are not reduced, on the contrary with being obviously improved.Moreover, the system of the composite cable insulating materials
Preparation Method is simple, it is easy to promote, with higher application value.
The present invention will be described in detail by way of examples below.In following examples, banbury is convertible for strength
Banbury, is in universe Machinery Co., Ltd. purchased from Shanghai；Extruder is 90 type Rubber Extruders, is had purchased from the big source rubber and plastic equipment in Hebei
Limit company；The mean molecule quantity of polyvinyl alcohol is 200,000, and alcoholysis degree is 88%；Carbon fiber is polyacrylonitrile carbon fiber, is general
Type polyacrylonitrile carbon fiber, purchased from Henan coal fiber Co., Ltd forever；Fluorubber is fluororubber 26；Rare earth oxide is oxidation
Cerium；Other are conventional commercial product.
Embodiment 1
The preparation method of the corrosion-resistant composite cable insulating materials in field, comprises the following steps：
(1) by 100 parts of fluorubber, 10 parts of carbon black, 2 parts of tetraethyl orthosilicate, 3 parts of dimethicone, 10 parts of carbon fiber, poly- second
20 parts of enol, a banburying is carried out in 120 DEG C, and banburying 20min obtains a banburying thing；Wherein, the order of addition of material is successively
It is：Fluorubber, carbon black, tetraethyl orthosilicate, polyvinyl alcohol, dimethicone, carbon fiber；From being started banburying, after banburying 8min
Carbon fiber is added after adding polyvinyl alcohol, banburying 14min；
(2) by a banburying thing, 5 parts of white carbon, 0.5 part of rare earth oxide, 3 parts of zinc oxide is secondary close in 160 DEG C of progress
Refining, the time of secondary banburying is 32min, obtains secondary banburying thing；
(3) secondary banburying thing is extruded in extruder, extrusion temperature is 190 DEG C, and revolution is 25r/min.
Embodiment 2
The preparation method of the corrosion-resistant composite cable insulating materials in field, comprises the following steps：
(1) by 100 parts of fluorubber, 20 parts of carbon black, 3 parts of tetraethyl orthosilicate, 4 parts of dimethicone, 15 parts of carbon fiber, poly- second
30 parts of enol, a banburying is carried out in 140 DEG C, and banburying 30min obtains a banburying thing；Wherein, the order of addition of material is successively
It is：Fluorubber, carbon black, tetraethyl orthosilicate, polyvinyl alcohol, dimethicone, carbon fiber；From being started banburying, after banburying 10min
Carbon fiber is added after adding polyvinyl alcohol, banburying 18min；
(2) by a banburying thing, 8 parts of white carbon, 0.8 part of rare earth oxide, 5 parts of zinc oxide is secondary close in 190 DEG C of progress
Refining, the time of secondary banburying is 42min, obtains secondary banburying thing；
(3) secondary banburying thing is extruded in extruder, extrusion temperature is 240 DEG C, and revolution is 35r/min.
Embodiment 3
The preparation method of the corrosion-resistant composite cable insulating materials in field, comprises the following steps：
(1) by 100 parts of fluorubber, 15 parts of carbon black, 2.5 parts of tetraethyl orthosilicate, 3.5 parts of dimethicone, carbon fiber 12.5
Part, 25 parts of polyvinyl alcohol carries out a banburying in 130 DEG C, and banburying 25min obtains a banburying thing；Wherein, the addition of material is suitable
Sequence is successively：Fluorubber, carbon black, tetraethyl orthosilicate, polyvinyl alcohol, dimethicone, carbon fiber；From being started banburying, banburying
Carbon fiber is added after polyvinyl alcohol, banburying 16min are added after 9min；
(2) by a banburying thing, 6.5 parts of white carbon, 0.65 part of rare earth oxide, 4 parts of zinc oxide is secondary in 175 DEG C of progress
Banburying, the time of secondary banburying is 37min, obtains secondary banburying thing；
(3) secondary banburying thing is extruded in extruder, extrusion temperature is 225 DEG C, and revolution is 30r/min.
Comparative example 1
The corrosion-resistant composite cable insulating materials in field is prepared according to the method for embodiment 3, unlike, by embodiment 3
All materials only according to the banburying condition banburying in step (1) once, mixing time is 62min.
Comparative example 2
The corrosion-resistant composite cable insulating materials in field is prepared according to the method for embodiment 3, unlike, by embodiment 3
All materials only according to the banburying condition banburying in step (2) once, mixing time is 62min.
Comparative example 3
The corrosion-resistant composite cable insulating materials in field is prepared according to the method for embodiment 3, unlike, in step (2)
Mixing temperature is 150 DEG C.
Comparative example 4
The corrosion-resistant composite cable insulating materials in field is prepared according to the method for embodiment 3, unlike, in step (2)
Mixing temperature is 195 DEG C.
Comparative example 5
The corrosion-resistant composite cable insulating materials in field is prepared according to the method for embodiment 3, unlike, without polyethylene
Alcohol.
Comparative example 6
The corrosion-resistant composite cable insulating materials in field is prepared according to the method for embodiment 3, unlike, it is fine without carbon
Dimension.
Comparative example 7
The corrosion-resistant composite cable insulating materials in field is prepared according to the method for embodiment 3, unlike, without rare earth oxygen
Compound.
Detect example 1
It is strong that the corrosion proof cable insulating materials that the present invention is obtained tests anti-tensile according to wires and cables industry universal testing method
Degree, elongation at break.Test result is shown in Table 1.
Detect example 2
The detection of soda acid weight-loss ratio will be soaked in 30% mass with reference to GB/T 1690-2010 under each cable insulation material normal temperature
Each 10 days in the sodium hydroxide solution of the hydrochloric acid of fraction and 40% mass fraction, weight-loss ratio is calculated, weight-loss ratio is smaller to show resistance to
Soda acid performance is stronger.Test result is shown in Table 1.
Table 1
The preferred embodiment of the present invention described in detail above, still, the present invention are not limited in above-mentioned embodiment
Detail, in the range of the technology design of the present invention, a variety of simple variants can be carried out to technical scheme, this
A little simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, 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 equally be considered as content disclosed in this invention.
Claims (10)
1. a kind of preparation method of the corrosion-resistant composite cable insulating materials in field, it is characterised in that comprise the following steps：
(1) fluorubber, carbon black, tetraethyl orthosilicate, dimethicone, polyvinyl alcohol, carbon fiber are subjected to a banburying, obtained once
Banburying thing；
(2) banburying thing, white carbon, rare earth oxide and zinc oxide are subjected to secondary banburying, obtain secondary banburying thing；
(3) secondary banburying thing is extruded in extruder；
Wherein, the temperature of secondary banburying is higher than the temperature of a banburying 20-70 DEG C.
2. preparation method according to claim 1, wherein, temperature high 30-50 of the temperature than a banburying of secondary banburying
℃。
3. preparation method according to claim 1, wherein, the temperature of a banburying is 120~140 DEG C；And/or, it is secondary
The temperature of banburying is 160~190 DEG C.
4. according to any described preparation method in claim 1-3, wherein, the temperature of a banburying is 125~135 DEG C；With/
Or, the temperature of secondary banburying is 165~175 DEG C.
5. according to any described preparation methods of claim 1-3, wherein, the time of a banburying is 20-30min；And/or,
The time of secondary banburying is 32-42min.
6. preparation method according to claim 1, wherein, the order of addition of material is successively in step (1)：Fluorubber,
Carbon black, tetraethyl orthosilicate, polyvinyl alcohol, dimethicone, carbon fiber.
7. preparation method according to claim 6, wherein, in step (1), from being started banburying, add after banburying 8-10min
Carbon fiber is added after Polyvinyl alcohol, banburying 14-18min.
8. preparation method according to claim 1, wherein, in parts by weight, 100 parts of fluorubber, 10-20 parts of carbon black, just
2-3 parts of silester, 3-4 parts of dimethicone, 10-15 parts of carbon fiber, 20-30 parts of polyvinyl alcohol, 5-8 parts of white carbon, rare earth
0.5-0.8 parts of oxide, 3-5 parts of zinc oxide；
Preferably, the rare earth oxide is the one or more in cerium oxide, praseodymium oxide, gadolinium oxide, dysprosia and erbium oxide；
And/or, polyvinyl alcohol is that mean molecule quantity is 17-22 ten thousand, and alcoholysis degree is 78-88% polyvinyl alcohol of high degree of polymerization.
9. preparation method according to claim 1, wherein, extrusion condition includes：Extrusion temperature is 190~240 DEG C, revolution
For 25-35r/min.
10. a kind of corrosion-resistant composite cable insulating materials in field, it is characterised in that according to any described systems of claim 1-9
Preparation Method is prepared.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107815115A (en) * | 2017-10-24 | 2018-03-20 | 芜湖航天特种电缆厂股份有限公司 | Underground laying tear-proof composite jacket and preparation method thereof |
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| CN105504399A (en) * | 2015-12-30 | 2016-04-20 | 余姚市云环东方电子有限公司 | Insulated waterproof corrosion-resistant cable laid in water body and preparation method of insulated waterproof corrosion-resistant cable |
| CN106128624A (en) * | 2016-06-03 | 2016-11-16 | 罗浩 | Resistant to elevated temperatures below 35kV cross linked insulation tinned copper wire power cable |
| CN106710710A (en) * | 2016-12-23 | 2017-05-24 | 绵阳市长信电线电缆有限公司 | Photoelectric hybrid cable and preparation method thereof |
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| CN107815115A (en) * | 2017-10-24 | 2018-03-20 | 芜湖航天特种电缆厂股份有限公司 | Underground laying tear-proof composite jacket and preparation method thereof |
| CN110564082A (en) * | 2019-08-24 | 2019-12-13 | 江苏兴缘高温线缆有限公司 | Fluororubber for high-temperature cable insulating layer |
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Application publication date: 20170908 |