CN107805975A - A kind of cable composite fibre paper and preparation method thereof - Google Patents

A kind of cable composite fibre paper and preparation method thereof Download PDF

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Publication number
CN107805975A
CN107805975A CN201710937287.4A CN201710937287A CN107805975A CN 107805975 A CN107805975 A CN 107805975A CN 201710937287 A CN201710937287 A CN 201710937287A CN 107805975 A CN107805975 A CN 107805975A
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China
Prior art keywords
paper
fibre
composite fibre
cable
weight
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Withdrawn
Application number
CN201710937287.4A
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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 CN201710937287.4A priority Critical patent/CN107805975A/en
Publication of CN107805975A publication Critical patent/CN107805975A/en
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/36—Inorganic fibres or flakes
    • D21H13/38—Inorganic fibres or flakes siliceous
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • 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
    • H01B7/02—Disposition of insulation
    • 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
    • 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

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)

Abstract

The invention discloses a kind of cable composite fibre paper and preparation method thereof, the cable includes the basalt fibre and 50 80% wood fibre of percentage by weight 16.5 35.8% with composite fibre paper；A diameter of 15 μm of described basalt fibre, length are≤3mm；Contain the nano aluminium oxide and 0.6 2.8% nano silicon that percetage by weight is 0.1 1.5% in the basalt fibre；The original wood fibre in part is substituted using basalt fibre as the raw material of paper, the composite fibre paper for making to obtain has higher breakdown strength, the performance of Inverter fed motor and electrical treeing is more preferable, make its as oil-paper be used for cable insulating barrier, be remarkably improved cable in high- and low-temperature resistance and the performance of fire-retardant aspect.

Description

A kind of cable composite fibre paper and preparation method thereof
Technical field
The present invention relates to cable material field, and in particular to a kind of cable composite fibre paper and preparation method thereof.
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, although can meet The performance requirement of normal cable, but when for preparing the cable used under particular surroundings, its performance shows slightly deficiency.
The oil-paper used in existing cable is mostly wood fibre paper, although having the advantages of cost is low, and processability is good, There is also poor heat resistance, water imbibition is strong, mechanical strength is low, inflammable the shortcomings that, thus, using the cable of such oil-paper in height It is difficult to apply under the particular surroundings such as temperature, high intensity.
Basalt fibre is a kind of emerging novel inorganic environment-friendly and green high performance fibre material, be by silica, The basalt building stones of the oxides such as aluminum oxide, calcium oxide, iron oxide and titanium dioxide composition pass through spinning work after high-temperature fusion What skill was prepared, discarded object caused by production technology is few, and environmental pollution is small, and ecological environment can be directly transferred to after product abandonment In, without any harm, thus it is a kind of qualified green, environment-friendly materials.Also, basalt fibre chemical stability is good, Electrical insulating property is good, dielectric constant is small, and dielectric loss is small, anticorrosive, do not burn, high temperature resistant, fully meets cable to insulating barrier material Expect the requirement of basic performance, thus, substituted existing cable wood fibre insulating materials and be used for application and preparation in particular surroundings Under cable be feasible.
The content of the invention
It is an object of the invention to overcome, poor heat resistance, water imbibition existing for existing lignocellulose oil-paper be strong, mechanics Poor performance, it is inflammable the defects of, there is provided a kind of cable composite fibre paper and preparation method thereof；The present invention using basalt fibre as The raw material of paper substitute the original wood fibre in part, so as to get composite fibre paper there is higher breakdown strength, resistance to electricity Dizzy and electrical treeing performance is more preferable, it is used for the insulating barrier of cable as oil-paper, be remarkably improved cable resistance to height, The performance of low temperature and fire-retardant aspect.
In order to realize foregoing invention purpose, the invention provides a kind of cable composite fibre paper, including percentage by weight 16.5-35.8% basalt fibre and 50-80% wood fibre；A diameter of 1-5 μm of described basalt fibre, length for≤ 3mm；Contain the nano aluminium oxide that percetage by weight is 0.1-1.5% and 0.6-2.8% nano-silica in the basalt fibre SiClx.
A kind of cable composite fibre paper of the present invention, by the nano aluminium oxide containing the development that can stop breakdown channel and Can influence crystalline phase distribution, size nano silicon basalt fibre substitute traditional paper in part wood fibre, obtain The composite fibre paper arrived has a higher breakdown strength, and the performance of Inverter fed motor and electrical treeing is more preferable, it is used as oil-paper In the insulating barrier of cable, be remarkably improved cable in high- and low-temperature resistance and the performance of fire-retardant aspect, cable is can apply to more In special environment condition.
A kind of above-mentioned cable with composite fibre paper, wherein, the percentage composition of described basalt fibre need to provide In the range of, content is very few, and the improvement effect to paper is small, is not suitable for cable oil-paper, content is excessive, is unfavorable for paper Shaping, and obtained paper hardness is big, poor toughness, is unfavorable for producing and processing；Preferably, basalt fibre percentage by weight contains Measure as 21.0-28.5%.
Preferably, a diameter of 2-3 μm of described basalt fibre, length are≤1mm.
A kind of above-mentioned cable with composite fibre paper, wherein, the content of described nano aluminium oxide, which must control, to be provided In the range of, its dosage is excessive, nano aluminium oxide can be caused to be played a leading role in electric field action, reduce basalt fibre on the contrary Breakdown strength, dosage is very few, and role is small, small to the breakdown strength increasing action of basalt fibre；Preferably, it is described The percentage by weight of nano aluminium oxide be 0.5-1.2%.Wherein, it is preferred that a diameter of 2- of described nano aluminium oxide 10nm；Diameter is excessive, and compatibility reduces, and the barrier effect of breakdown channel is reduced, 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 composite fibre paper, wherein, the content of described nano silicon, which must control, to be provided In the range of, content is excessive, and nano silicon easily gathers, and the distribution to crystalline phase in basalt fibre on the contrary impacts, and makes The performance of its Inverter fed motor and electrical treeing reduces, and content is too small, small to basalt fibre uniformity influence；Preferably, institute The percentage by weight for the nano silicon stated 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.
In order to realize foregoing invention purpose, further, the preparation the invention provides a kind of cable with composite fibre paper Method, comprise the following steps：Dispensing slurrying, shaping of manufacturing paper with pulp, dehydration, drying, trimming shaping；Wherein, dispensing slurrying includes：Will be profound Military rock fiber is dispersed in papermaking slurry by 0.8-1.5% weight concentrations with ultrasonic assistant, forms mixed slurry.
A kind of preparation method of cable composite fibre paper of the present invention, basalt fibre is disperseed with ultrasonic wave, made It is uniformly dispersed in paper making pulp, so as to be advantageous to the shaping of manufacturing paper with pulp of composite fibre paper, obtained composite fibre papery Uniformly, stable performance, mechanical strength is high, for the insulating barrier in oil immersion paper cable, has excellent electrical property and mechanical property, And it is improved cable high temperature resistant, corrosion-resistant and fire resistance；The preparation method is simple, reliable, is adapted to the compound fibre of cable Tie up extensive, the industrialized production of paper.
A kind of preparation method of above-mentioned cable composite fibre paper, wherein, it is preferred that described ultrasonic frequency is 120- 180KHz, power density 0.3-0.5W/cm2。
Compared with prior art, beneficial effects of the present invention：
1st, cable composite fibre paper of the present invention has excellent electrical property, mechanical property and processability, can replace existing wood Matter fibrous paper is used in the oil immersion insulating materials of cable, and then significantly improves the heat resistance, mechanical property and anti-flammability of cable, makes Cable can apply in more special environment conditions.
2nd, the composite fibre paper that preparation method of the present invention is prepared is homogeneous, stable performance, and mechanical strength is high, and side Method is simple, reliable, is adapted to extensive, industrialized production of the cable with composite fibre paper.
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
1st, dispensing first is carried out with the dispensing proportioning of paper according to existing oil-paper, and paper making pulp is prepared；Again by a diameter of 2 μm, length be 1mm be 0.1% containing percetage by weight, a diameter of 10nm nano aluminium oxide and 2.8%, particle diameter be receiving for 5nm The basalt fibre of rice silica is 50KHz, power density 0.3W/cm with frequency by 0.8% weight concentration2Ultrasonic wave Aid dispersion forms mixed slurry in papermaking slurry；
2nd, obtained mixed slurry is carried out to the techniques such as copy paper shaping, dehydration, drying, trimming shaping successively to obtain containing weight hundred Divide the cable of the present invention composite fibre paper than 24.6% basalt fibre.
Embodiment 2
1st, dispensing first is carried out with the dispensing proportioning of paper according to existing oil-paper, and paper making pulp is prepared；Again by a diameter of 3 μm, length be 0.5mm be 0.5% containing percetage by weight, a diameter of 5nm nano aluminium oxide and 1.6%, particle diameter be 10nm's The basalt fibre of nano silicon is 140KHz, power density 0.4W/cm with frequency by 1.2% weight concentration2Ultrasound Ripple aid dispersion forms mixed slurry in papermaking slurry；
2nd, obtained mixed slurry is carried out to the techniques such as copy paper shaping, dehydration, drying, trimming shaping successively to obtain containing weight hundred Divide the cable of the present invention composite fibre paper than 21.8% basalt fibre.
Embodiment 3
1st, dispensing first is carried out with the dispensing proportioning of paper according to existing oil-paper, and paper making pulp is prepared；Again by a diameter of 1 μm, length be 3mm be 1.5% containing percetage by weight, a diameter of 2nm nano aluminium oxide and 0.6%, particle diameter be receiving for 5nm The basalt fibre of rice silica is 180KHz, power density 0.5W/cm with frequency by 1.5% weight concentration2Ultrasonic wave Aid dispersion forms mixed slurry in papermaking slurry；
2nd, obtained mixed slurry is carried out to the techniques such as copy paper shaping, dehydration, drying, trimming shaping successively to obtain containing weight hundred Divide the cable of the present invention composite fibre paper than 35.8% basalt fibre.
Embodiment 4
1st, dispensing first is carried out with the dispensing of paper according to existing oil-paper, and paper making pulp is prepared；Again by a diameter of 5 μm, Length be 0.1mm be 1.2% containing percetage by weight, a diameter of 6nm nano aluminium oxide and 2.2%, particle diameter be receiving for 15nm The basalt fibre of rice silica is 180KHz, power density 0.5W/cm with frequency by 0.8% weight concentration2Ultrasonic wave Aid dispersion forms mixed slurry in papermaking slurry；
2nd, obtained mixed slurry is carried out to the techniques such as copy paper shaping, dehydration, drying, trimming shaping successively to obtain containing weight hundred Divide the cable of the present invention composite fibre paper than 16.5% basalt fibre.
Comparative example 1
1st, dispensing first is carried out with the dispensing proportioning of paper according to existing oil-paper, and paper making pulp is prepared；Again by a diameter of 3 μm, the basalt fibre containing the nano silicon that percetage by weight is 1.6%, particle diameter is 10nm that length is 0.5mm by 1.2% weight concentration is 140KHz, power density 0.4W/cm with frequency2Ultrasonic assistant be dispersed in papermaking slurry, shape Into mixed slurry；
2nd, obtained mixed slurry is carried out to the techniques such as copy paper shaping, dehydration, drying, trimming shaping successively to obtain containing weight hundred Divide the composite fibre paper than 21.8% basalt fibre.
Comparative example 2
1st, dispensing first is carried out with the dispensing proportioning of paper according to existing oil-paper, and paper making pulp is prepared；Again by a diameter of 3 μm, length be 0.5mm be 0.5% containing percetage by weight, the basalt fibre of a diameter of 5nm nano aluminium oxide is by 1.2% Weight concentration is 140KHz, power density 0.4W/cm with frequency2Ultrasonic assistant be dispersed in papermaking slurry, formed mixed Close slurry；
2nd, obtained mixed slurry is carried out to the techniques such as copy paper shaping, dehydration, drying, trimming shaping successively to obtain containing weight hundred Divide the composite fibre paper than 21.8% basalt fibre.
Comparative example 3
1st, dispensing first is carried out with the dispensing proportioning of paper according to existing oil-paper, and paper making pulp is prepared；Again by a diameter of 3 μm, length be 0.5mm be 0.5% containing percetage by weight, a diameter of 5nm nano aluminium oxide and 1.6%, particle diameter be 10nm's The basalt fibre of nano silicon is 140KHz, power density 0.4W/cm with frequency by 1.2% weight concentration2Ultrasound Ripple aid dispersion forms mixed slurry in papermaking slurry；
2nd, obtained mixed slurry is carried out to the techniques such as copy paper shaping, dehydration, drying, trimming shaping successively to obtain containing weight hundred Divide the composite fibre paper than 14.5% basalt fibre.
Comparative example 4
1st, dispensing first is carried out with the dispensing proportioning of paper according to existing oil-paper, and paper making pulp is prepared；Again by a diameter of 3 μm, length be 0.5mm be 0.5% containing percetage by weight, a diameter of 5nm nano aluminium oxide and 1.6%, particle diameter be 10nm's Nano silicon basalt fibre is 140KHz, power density 0.4W/cm with frequency by 1.2% weight concentration2Ultrasonic wave Aid dispersion forms mixed slurry in papermaking slurry；
2nd, obtained mixed slurry is carried out to the techniques such as copy paper shaping, dehydration, drying, trimming shaping successively to obtain containing weight hundred Divide the composite fibre paper than 36.8% basalt fibre.
Comparative example 5
1st, dispensing first is carried out with the dispensing proportioning of paper according to existing oil-paper, and paper making pulp is prepared；Again by a diameter of 3 μm, length be 0.5mm be 0.5% containing percetage by weight, a diameter of 5nm nano aluminium oxide and 1.6%, particle diameter be 10nm's Nano silicon basalt fibre is dispersed in papermaking slurry by 1.2% weight concentration, forms mixed slurry；
2nd, obtained mixed slurry is carried out to the techniques such as copy paper shaping, dehydration, drying, trimming shaping successively to obtain containing weight hundred Divide the composite fibre paper than 21.8% basalt fibre.
Comparative example 6
1st, dispensing first is carried out with the dispensing proportioning of paper according to existing oil-paper, and paper making pulp is prepared；
2nd, obtained paper making pulp is carried out to the techniques such as copy paper shaping, dehydration, drying, trimming shaping successively and obtains wood fibre Paper.
Composite fibre paper in above-described embodiment 1-4 and comparative example 1-5 and the wood fibre paper one in comparative example 6 are reinstated After silicone oil infiltration, performance detection is carried out, record data is as follows：
Numbering Breakdown strength（KV/mm） Anti- corona Anti- electrical treeing Anti-flammability High temperature resistant（℃）
Embodiment 1 ≥35 +++++ +++++ ++++ ≤160
Embodiment 2 ≥35 +++++ +++++ ++++ ≤160
Embodiment 3 ≥35 +++++ +++++ ++++ ≤160
Embodiment 4 ≥35 +++++ +++++ ++++ ≤160
Comparative example 1 ≥20 ++++ ++++ ++++ ≤160
Comparative example 2 ≥25 ++ ++ ++++ ≤160
Comparative example 3 ≥20 +++++ +++++ +++ ≤130
Comparative example 4 ≥30 ++++ ++++ ++++++ ≤180
Comparative example 5 ≥25 ++++ ++++ ++++ ≤150
Comparative example 6 ≥18 +++++ +++++ ++ ≤80
Note："+" is more, represents that performance is better.
Above-mentioned analysis of experimental data is understood, the composite fibre paper of the present invention being prepared in embodiment 1-4, obtained oil Impregnated paper good electrical property, anti-flammability and resistance to elevated temperatures are good；And in comparative example 1-5, not using in technical solution of the present invention to compound The restriction of fibrous paper, obtained oil-paper electric energy significantly reduce；And in comparative example 6 it is conventional wood fibre oil-paper, it punctures Intensity, anti-flammability and resistance to elevated temperatures are substantially less than basalt fiber cloth oil-paper.

Claims (10)

  1. A kind of 1. cable composite fibre paper, it is characterised in that basalt fibre including percentage by weight 16.5-35.8% and 50-80% wood fibre；A diameter of 1-5 μm of described basalt fibre, length are≤3mm；Contain in the basalt fibre Percetage by weight is 0.1-1.5% nano aluminium oxide and 0.6-2.8% nano silicon.
  2. 2. composite fibre paper according to claim 1, it is characterised in that the percentage by weight of described nano aluminium oxide is 0.5-1.2%。
  3. 3. composite fibre paper according to claim 1, it is characterised in that a diameter of 2- of described nano aluminium oxide 10nm。
  4. 4. composite fibre paper according to claim 1, it is characterised in that described nano aluminium oxide is that draw ratio is 1.5- 3 ︰ 1 alumina whisker.
  5. 5. composite fibre paper according to claim 1, it is characterised in that the percentage by weight of described nano silicon For 1.2-2.1%.
  6. 6. composite fibre paper according to claim 1, it is characterised in that the particle diameter of described nano silicon is 5- 20nm。
  7. 7. composite fibre paper according to claim 1, it is characterised in that a diameter of 2-3 μm of described basalt fibre, it is long Spend for≤1mm.
  8. 8. composite fibre paper according to claim 1, it is characterised in that basalt fibre weight percent content is 21.0-28.5%。
  9. 9. a kind of preparation method of any one of claim 1-8 composite fibre paper, comprises the following steps：Dispensing slurrying, copy Cause type, dehydration, drying, trimming shaping；Characterized in that, the dispensing slurrying includes：Basalt fibre is pressed into 0.8-1.5% Weight concentration is dispersed in papermaking slurry with ultrasonic assistant, forms mixed slurry.
  10. 10. preparation method according to claim 9, it is characterised in that described ultrasonic frequency is 120-180KHz, work( Rate density is 0.3-0.5W/cm2。
CN201710937287.4A 2017-09-30 2017-09-30 A kind of cable composite fibre paper and preparation method thereof Withdrawn CN107805975A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710937287.4A CN107805975A (en) 2017-09-30 2017-09-30 A kind of cable composite fibre paper and preparation method thereof

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Application Number Priority Date Filing Date Title
CN201710937287.4A CN107805975A (en) 2017-09-30 2017-09-30 A kind of cable composite fibre paper and preparation method thereof

Publications (1)

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CN107805975A true CN107805975A (en) 2018-03-16

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111235958A (en) * 2020-02-20 2020-06-05 陕西科技大学 Method for dispersing basalt fibers and manufacturing insulating paper by adopting basalt fibers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111235958A (en) * 2020-02-20 2020-06-05 陕西科技大学 Method for dispersing basalt fibers and manufacturing insulating paper by adopting basalt fibers

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