CN107652650A - A kind of cable polycarbonate composite material and preparation method thereof - Google Patents

A kind of cable polycarbonate composite material and preparation method thereof Download PDF

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Publication number
CN107652650A
CN107652650A CN201710937286.XA CN201710937286A CN107652650A CN 107652650 A CN107652650 A CN 107652650A CN 201710937286 A CN201710937286 A CN 201710937286A CN 107652650 A CN107652650 A CN 107652650A
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China
Prior art keywords
parts
composite material
polycarbonate composite
material according
basalt fibre
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CN201710937286.XA
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Chinese (zh)
Inventor
舒春柳
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Sichuan Lizhi Jiuchuang Intellectual Property Operations Ltd
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Sichuan Lizhi Jiuchuang Intellectual Property Operations Ltd
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Priority to CN201710937286.XA priority Critical patent/CN107652650A/en
Publication of CN107652650A publication Critical patent/CN107652650A/en
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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
    • C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
    • 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
    • H01B3/42—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 polyesters; polyethers; polyacetals
    • H01B3/421—Polyesters
    • H01B3/426—Polycarbonates
    • 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
    • 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

Abstract

The invention discloses a kind of cable polycarbonate composite material and preparation method thereof, the polycarbonate composite material is prepared including following parts by weight raw material：12 25 parts of basalt fibre, 0.001 0.003 parts of graphene, 15 25 parts of polyoxy ethyl benzoate, 50 60 parts of makrolon, 8 12 parts of modifying agent, 15 parts of stabilizer；Described modifying agent includes the hydrogen peroxide and organic acid that mass ratio is 24 ︰ 13；The polycarbonate composite material has excellent resistance to ag(e)ing and Geng Gao breakdown strength, the insulating materials available for cable.

Description

A kind of cable polycarbonate composite material and preparation method thereof
Technical field
The present invention relates to cable material field, and in particular to a kind of cable polycarbonate composite material and its preparation side Method.
Background technology
Cable is to be fabricated to conductor thread core by twisted with one or more wire, then corresponding insulation is imposed on conductor Layer, the wire that outside is wrapped sealing sheath and formed, is mainly made up of core, insulating barrier, screen layer and restrictive coating.Cable has Take ground and space is few；Power supply safety is reliable, and electric shock possibility is small；Be advantageous to improve the power factor of power system；Operation, Maintenance work is simple and convenient；Be advantageous to beautifying city, there is many advantages, such as confidentiality, in being widely used in living and producing Every field.
The effect of insulating barrier is will to be electrically isolated from each other between core and the earth and out of phase core in cable, from And ensure not occurring when conveying electric energy relatively or alternate puncture short.By experiment and long-term use of empirical evidence, Gao Pin In the cable of matter, the material of insulating barrier needs have following performance：Compressive resistance is high；Dielectric loss angle tangent is low；Inverter fed motor Performance is good；Stable chemical performance；It is low temperature resistant；Heat resistance is good；Machining property is good；Service life is grown.Existing cable is exhausted Edge layer material is broadly divided into several major classes such as oil-paper, rubber, polyethylene, polyvinyl chloride and crosslinked polyethylene be multiple, although can expire The performance requirement of sufficient normal cable, but when for preparing the cable used under particular surroundings, its performance shows slightly deficiency.
Makrolon is the high molecular polymer containing carbonate group in strand, and makrolon material has preferably comprehensive Performance is closed, makrolon water white transparency, heat-resisting, shock resistance, good flame resistance, excellent insulation performance, dielectric constant is small, compact dimensions Stability is good, has many advantages, such as good mechanical performance in temperature in use；But due to ester group be present in makrolon, Meeting quick aging, performance quickly reduce under the conditions of ultraviolet, corona etc., thus, makrolon cannot be directly used to the exhausted of cable Edge material.
The content of the invention
It is an object of the invention to overcome the defects of corona resistance existing for makrolon material is poor, breakdown potential is forced down, carry For a kind of cable polycarbonate composite material and preparation method thereof；Basalt fibre is first modified processing by the present invention, and Very small amount graphene is loaded, it is finally mixed and modified with makrolon, significantly improve corona resistance and the breakdown of makrolon Voltage, the polycarbonate composite material can be used for cable insulation.
In order to realize foregoing invention purpose, the invention provides a kind of cable polycarbonate composite material, including it is following Parts by weight raw material are prepared：The basalt fibre, the graphene of 0.001-0.003 parts of 12-25 parts, the polyoxy of 15-25 parts Yl benzoic acid ethyl ester, the makrolon of 50-60 parts, the modifying agent of 8-12 parts, the stabilizer of 1-5 parts.
A kind of cable polycarbonate composite material of the present invention, not merely with the excellent electrical and Nai Gao of basalt fibre Warm nature, it is modified processing again to makrolon, improves makrolon multiple heat-resisting quantity and insulating properties；It is also that basalt is fine Dimension is roughened, and prevents fast-growth of the breakdown channel along basalt fibre interface, the breakdown to improving insulating materials Voltage has certain effect；Also, will be minimal amount of graphene-supported on basalt fibre surface, can effectively prevent interface corona and Electric discharge phenomena, the possibility of breakdown and electrical treeing is reduced, and then also there is positive role to the electrical property for improving insulating materials；Cause And the polycarbonate composite material has excellent corona resistance and resistance to sparking, available for cable insulation.
A kind of above-mentioned cable polycarbonate composite material, wherein, it is 2-4 ︰ 1-3's that described modifying agent, which includes mass ratio, Hydrogen peroxide and organic acid；The modifying agent quickly can carry out burn into activation to basalt fibre surface, form rough surface, and A large amount of active groups are grafted, not only increase load capacity of the basalt fibre to graphene, improve basalt fibre with gathering Chemical bonding and mechanical riveted ability between p-methoxybenzoic acid ethyl ester, moreover it is possible to prevent breakdown channel along basalt fibre interface Fast-growth, improve the breakdown voltage of insulating materials；Described mechanical riveted refers to that matrix material is packed tightly by shrinkage stress The fiber of rough surface and caused frictional engagement.
Wherein, described polyoxy ethyl benzoate is not only good with makrolon compatibility, and can effectively absorb activity Ion, increase the ageing resistace of makrolon, extend the service life of makrolon.
Wherein, the amount of graphene needs to control in prescribed limit, and dosage is excessive, and insulating materials resistivity is greatly reduced, Insulating properties reduces；Dosage is very few, small to insulating materials modifying function, action effect unobvious；Preferably, described graphene is used Measure as 0.002 part.
Wherein, described organic acid is the one or more in formic acid, acetic acid, ethanedioic acid, butene dioic acid, acrylic acid.
A kind of above-mentioned cable polycarbonate composite material, wherein, described basalt fibre length≤2mm is a diameter of 1-5μm。
A kind of above-mentioned cable polycarbonate composite material, wherein, include weight percent in described basalt fibre Number is 0.1-1.5% nano aluminium oxide, and nano aluminium oxide can stop the development of breakdown channel, improve hitting for basalt fibre Wear intensity；The content of described nano aluminium oxide must be controlled in prescribed limit, and its dosage is excessive, can cause nano aluminium oxide Being played a leading role in electric field action, reduce the breakdown strength of basalt fibre on the contrary, dosage is very few, and role is small, It is small to the breakdown strength increasing action of basalt fibre；Preferably, the percentage by weight of described nano aluminium oxide is 0.5- 1.2%.Wherein, it is preferred that a diameter of 2-10nm of described nano aluminium oxide；Diameter is excessive, and compatibility reduces, logical to puncturing The barrier effect in road reduces, and diameter is too small, is unfavorable for disperseing.
Wherein, it is preferred that described nano aluminium oxide is the alumina whisker that draw ratio is 1.5-3 ︰ 1；Whisker can be embedded in It is more preferable to the barrier effect of breakdown channel in different crystal phase structures；Draw ratio is too small, poor to the barrier effect of breakdown channel, Draw ratio is excessive, and winding or fracture easily occurs, is unfavorable for the modification to basalt fibre.
A kind of above-mentioned cable polycarbonate composite material, wherein, 0.6-2.8% is also included in described basalt fibre Nano silicon, nano silicon can influence in basalt fibre crystalline phase distribution and size, make brilliant in basalt fibre Evenly, difference in size is smaller for distributed mutually, make basalt fibre Inverter fed motor and electrical treeing performance it is more preferable；Described nanometer The content of silica must be controlled in prescribed limit, and content is excessive, and nano silicon easily gathers, on the contrary to basalt The distribution of crystalline phase impacts in fiber, makes the reduction of the performance of its Inverter fed motor and electrical treeing, content is too small, to basalt fibre Uniformity influence is small；Preferably, the percentage by weight of described nano silicon is 1.2-2.1%.
Wherein, it is preferred that the particle diameter of described nano silicon is 5-20nm；Particle diameter is excessive, brilliant in basalt fibre Phase diameter is big, and Inverter fed motor and electrical treeing humidification are reduced；Particle diameter is too small, is unfavorable for disperseing.
Wherein, described stabilizer is fatty acid zinc；Stabilizer can improve the chemical stability of makrolon, reduce aging Speed, increase service life.
In order to realize foregoing invention purpose, further, the invention provides a kind of cable polycarbonate composite material Preparation method, comprise the following steps：
（1）Basalt fibre is handled with modifying agent, obtains treated basalt fiber；
（2）By graphene-supported on treated basalt fiber；
（3）Polyoxy ethyl benzoate is mixed into extrusion with being loaded with the treated basalt fiber of graphene and obtains intermediate；
（4）Extruded after intermediate is well mixed with makrolon, stabilizer with extruder, obtain makrolon composite wood Material.
A kind of preparation method of cable polycarbonate composite material of the present invention, surface first is carried out to basalt fibre and changed Property, the load capacity of basalt fibre and interface characteristics is improved, then graphene will be loaded, effectively prevent interface corona and electric discharge existing As；Finally by compound with polyoxy ethyl benzoate, make its compatibility multiple with makrolon more preferable, so that being prepared into To insulating materials there is more preferable Inverter fed motor and resistance to sparking, available for cable insulation material；The preparation method is simple and reliable, It is suitable for extensive, the industrialized production of polycarbonate composite material.
Compared with prior art, beneficial effects of the present invention：
1st, the basalt fibre in polycarbonate composite material of the present invention has rough surface, prevents breakdown channel fine along basalt The fast-growth at interface is tieed up, improves the breakdown voltage of insulating materials.
2nd, the basalt fibre in polycarbonate composite material of the present invention is loaded with graphene, can effectively prevent interface corona And electric discharge phenomena, reduce that material is breakdown and the possibility of electrical treeing
3rd, the basalt fibre in polycarbonate composite material of the present invention contains nano aluminium oxide and nano silicon, and its is electrical Can be more preferable.
4th, contain stabilizer in polycarbonate composite material of the present invention, the chemical stability of makrolon can be improved, reduce Aging speed, increase service life.
5th, preparation method of the present invention is simple, reliable, is adapted to extensive, the industrialized production of polycarbonate composite material.
Embodiment
With reference to test example and embodiment, the present invention is described in further detail.But this should not be understood Following embodiment is only limitted to for the scope of the above-mentioned theme of the present invention, it is all that this is belonged to based on the technology that present invention is realized The scope of invention.
Embodiment 1
（1）By 20 parts containing percetage by weight be 0.8% draw ratio be 2 ︰ 1, a diameter of 5nm alumina whisker and 1.6% grain Footpath is that the basalt fibre of 10nm nano silicons with 10 parts is at 3 ︰ 2 hydrogen peroxide and acetic acid including mass ratio Reason, obtains treated basalt fiber；
（2）0.002 part of graphene uniform is supported on treated basalt fiber；
（3）20 parts of polyoxy ethyl benzoates are mixed into extrusion with being loaded with the treated basalt fiber of graphene and obtain centre Body；
（4）Extruded after intermediate is well mixed with 55 parts of makrolon, 3 parts of fatty acid zincs with extruder, obtain poly- carbon Acid esters composite.
Embodiment 2
（1）20 parts of parabasalt fibers are handled with 10 parts of the mass ratio that includes for 2 ︰ 1 hydrogen peroxide and formic acid, obtained Treated basalt fiber；
（2）0.002 part of graphene uniform is supported on treated basalt fiber；
（3）20 parts of polyoxy ethyl benzoates are mixed into extrusion with being loaded with the treated basalt fiber of graphene and obtain centre Body；
（4）Extruded after intermediate is well mixed with 60 parts of makrolon, 3 parts of fatty acid zincs with extruder, obtain poly- carbon Acid esters composite.
Embodiment 3
（1）Containing percetage by weight it is alumina whisker and 2.8% that 0.1% draw ratio is 1.5 ︰ 1, a diameter of 10nm by 12 parts Particle diameter is that the basalt fibre of 2nm nano silicons includes the hydrogen peroxide and ethanedioic acid, carry out that mass ratio is 4 ︰ 1 with 8 parts Processing, obtains treated basalt fiber；
（2）0.001 part of graphene uniform is supported on treated basalt fiber；
（3）25 parts of polyoxy ethyl benzoates are mixed into extrusion with being loaded with the treated basalt fiber of graphene and obtain centre Body；
（4）Extruded after intermediate is well mixed with 60 parts of makrolon, 1 part of fatty acid zinc with extruder, obtain poly- carbon Acid esters composite.
Embodiment 4
（1）By 25 parts containing percetage by weight be 1.5% draw ratio be 3 ︰ 1, a diameter of 2nm alumina whisker and 0.6% grain Footpath is that the basalt fibre of 20nm nano silicons with 12 parts is that 2 ︰ 3 hydrogen peroxide and butene dioic acid are carried out including mass ratio Processing, obtains treated basalt fiber；
（2）0.003 part of graphene uniform is supported on treated basalt fiber；
（3）15 parts of polyoxy ethyl benzoates are mixed into extrusion with being loaded with the treated basalt fiber of graphene and obtain centre Body；
（4）Extruded after intermediate is well mixed with 50 parts of makrolon, 5 parts of fatty acid zincs with extruder, obtain poly- carbon Acid esters composite.
Comparative example 1
（1）It is that 0.8% draw ratio is 2 ︰ 1, a diameter of 5nm that 0.002 part of graphene uniform is supported on into 15 parts containing percetage by weight Alumina whisker and 1.6% particle diameter for 10nm nano silicons basalt fibre on；
（2）20 parts of polyoxy ethyl benzoates are mixed into extrusion with being loaded with the basalt fibre of graphene and obtain intermediate；
（3）Extruded after intermediate is well mixed with 55 parts of makrolon, 3 parts of fatty acid zincs with extruder, obtain poly- carbon Acid esters composite.
Comparative example 2
（1）By 20 parts containing percetage by weight be 0.8% draw ratio be 2 ︰ 1, a diameter of 5nm alumina whisker and 1.6% grain Footpath is that the basalt fibre of 10nm nano silicons with 10 parts is at 3 ︰ 2 hydrogen peroxide and acetic acid including mass ratio Reason, obtains treated basalt fiber；
（2）20 parts of polyoxy ethyl benzoates are mixed into extrusion with treated basalt fiber and obtain intermediate；
（3）Extruded after intermediate is well mixed with 55 parts of makrolon, 3 parts of fatty acid zincs with extruder, obtain poly- carbon Acid esters composite.
Comparative example 3
（1）By 20 parts containing percetage by weight be 0.8% draw ratio be 2 ︰ 1, a diameter of 5nm alumina whisker and 1.6% grain Footpath is that the basalt fibre of 10nm nano silicons with 10 parts is at 3 ︰ 2 hydrogen peroxide and acetic acid including mass ratio Reason, obtains treated basalt fiber；
（2）0.005 part of graphene uniform is supported on treated basalt fiber；
（3）20 parts of polyoxy ethyl benzoates are mixed into extrusion with being loaded with the treated basalt fiber of graphene and obtain centre Body；
（4）Extruded after intermediate is well mixed with 55 parts of makrolon, 3 parts of fatty acid zincs with extruder, obtain poly- carbon Acid esters composite.
Comparative example 4
（1）By 20 parts containing percetage by weight be 0.8% draw ratio be 2 ︰ 1, a diameter of 5nm alumina whisker and 1.6% grain Footpath is that the basalt fibre of 10nm nano silicons with 10 parts is at 3 ︰ 2 hydrogen peroxide and acetic acid including mass ratio Reason, obtains treated basalt fiber；
（2）0.002 part of graphene uniform is supported on treated basalt fiber；
（3）20 parts of polyoxy ethyl benzoates are mixed into extrusion with being loaded with the treated basalt fiber of graphene and obtain centre Body；
（4）Extruded after intermediate is well mixed with 55 parts of makrolon with extruder, obtain polycarbonate composite material.
By the polycarbonate composite material in above-described embodiment 1-4 and comparative example 1-4, performance detection, record data are carried out It is as follows：
Numbering Breakdown strength（KV/mm） Resistance to ag(e)ing
Embodiment 1 ≥68 ++++
Embodiment 2 ≥62 ++++
Embodiment 3 ≥65 ++++
Embodiment 4 ≥66 ++++
Comparative example 1 ≥53 ++++
Comparative example 2 ≥48 ++++
Comparative example 3 ≥16 ++++
Comparative example 4 ≥60 +
Note："+" is more, represents that performance is better.
The polycarbonate composite material of the present invention being prepared in embodiment 1-4 is resistance to be understood to above-mentioned analysis of experimental data High-temperature behavior is good, good flame resistance, and breakdown voltage is high；And in comparative example 1-4, the poly- carbonic acid that is not obtained using technical solution of the present invention Ester composite property significantly reduces.

Claims (10)

1. a kind of cable polycarbonate composite material, it is characterised in that be prepared including following parts by weight raw material：12- 25 parts of basalt fibre, the graphene of 0.001-0.003 parts, the polyoxy ethyl benzoate of 15-25 parts, 50-60 parts it is poly- Carbonic ester, the modifying agent of 8-12 parts, the stabilizer of 1-5 parts；Described modifying agent include mass ratio be 2-4 ︰ 1-3 hydrogen peroxide and Organic acid.
2. polycarbonate composite material according to claim 1, it is characterised in that described organic acid be formic acid, acetic acid, One or more in ethanedioic acid, butene dioic acid, acrylic acid.
3. polycarbonate composite material according to claim 1, it is characterised in that include in described basalt fibre Percetage by weight is 0.1-1.5% nano aluminium oxide.
4. polycarbonate composite material according to claim 3, it is characterised in that described nano aluminium oxide it is a diameter of 2-10nm。
5. polycarbonate composite material according to claim 3, it is characterised in that described nano aluminium oxide is draw ratio For 1.5-3 ︰ 1 alumina whisker.
6. polycarbonate composite material according to claim 1, it is characterised in that also include in described basalt fibre 0.6-2.8% nano silicon.
7. polycarbonate composite material according to claim 6, it is characterised in that the weight of described nano silicon Percentage is 1.2-2.1%.
8. polycarbonate composite material according to claim 6, it is characterised in that the particle diameter of described nano silicon For 5-20nm.
9. polycarbonate composite material according to claim 1, it is characterised in that described stabilizer is fatty acid zinc.
A kind of 10. preparation method of any one of the claim 1-9 polycarbonate composite material, it is characterised in that including with Lower step：
（1）Basalt fibre is handled with modifying agent, obtains treated basalt fiber；
（2）By graphene-supported on treated basalt fiber；
（3）Polyoxy ethyl benzoate is mixed into extrusion with being loaded with the treated basalt fiber of graphene and obtains intermediate；
（4）It will be extruded with extruder after intermediate and makrolon be multiple, stabilizer is well mixed, it is compound to obtain makrolon Material.
CN201710937286.XA 2017-09-30 2017-09-30 A kind of cable polycarbonate composite material and preparation method thereof Withdrawn CN107652650A (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114466898A (en) * 2019-08-22 2022-05-10 高新特殊工程塑料全球技术有限公司 Composition with improved dielectric strength

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114466898A (en) * 2019-08-22 2022-05-10 高新特殊工程塑料全球技术有限公司 Composition with improved dielectric strength

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