CN102516694A - Preparation method for semiconductive waterproofing tape of high-voltage direct-current cable - Google Patents
Preparation method for semiconductive waterproofing tape of high-voltage direct-current cable Download PDFInfo
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- CN102516694A CN102516694A CN2011103784801A CN201110378480A CN102516694A CN 102516694 A CN102516694 A CN 102516694A CN 2011103784801 A CN2011103784801 A CN 2011103784801A CN 201110378480 A CN201110378480 A CN 201110378480A CN 102516694 A CN102516694 A CN 102516694A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a preparation method for a semiconductive waterproofing tape of a high-voltage direct-current cable. The preparation method comprises the following processes of: washing and dyeing a fiber tape in a semiconductive shielding dye, and then adding waterproofing powder, wherein the semiconductive shielding dye comprises the following components according to a mass ratio: 1-10% of polyvinyl alcohol, 8-25% of tackifying resin, 1-4% of conductive carbon black, 1-3% of zeolite, 1-4% of fatty alcohol polyoxyethylene ether and the balance of water. The semiconductive waterproofing tape processed by the dye has a firm dye coating which is difficult to fall. The semiconductive waterproofing tape processed by the method can neutralize generated space charges and prevent space charges from migrating to insulators, so as to achieve the purpose of effectively eliminating the space charges. The level dyeing effect is good, and the dyed semiconductive waterproofing tape is stable in performance.
Description
Technical field
The present invention relates to a kind of preparation of cable material, specifically is a kind of preparation method of high voltage direct current cable semiconduction waterstop.
Background technology
Along with the continuous expansion of power system, the continuous increase of transmitted power, transmission distance increases gradually, and alternating current transmission runs into some technical difficulties, and direct-current transmission is to solve one of direction of technology of transmission of electricity difficulty.Direct-current transmission than alternating current transmission have transport efficiency height, line loss little, regulate electric current and change that the power direction of transfer is convenient, investment cost is few, length do not receive capacitive current restriction, can be used as two kinds of electrical networks tie, can reduce advantages such as short-circuit current, corona wireless interference between trunk main and electrical network is little.There is multinomial research to confirm that the space charge in the crosslinked polyethylene is the major cause that causes the early stage failure of insulation of cable.Space charge injects in the dielectric medium, causes the material internal electric field distortion, and finally causes the puncture of material, and insulating material lost efficacy.Problems with space charge in the dielectric has become the restriction power cable to one of principal element of high electric field development.
It is the structure that the high-voltage alternating of generally acknowledging or direct current cables must have that insulation screen is set outside insulation; Insulation screen has multilayer, and wherein wrapped semiconduction waterstop is the normal structure that adopts outside out semiconductor layer, and the semiconduction waterstop can play radially resistance effect; And play buffering between ability and the out semiconductor layer; Uniform electric field prevents that electric field from converging, and can avoid also that high temperature in the metal covering extrusion is scalded and the mechanical force damage during gauffer.The preparation process of semiconduction waterstop is after fiber band is placed the semi-conductive screen dyestuff to wash to dye; Adding water-proofing powder again is prepared from; But there is defective in existing semiconduction waterstop in the preparation process, and after using for some time, semiconductive shieldin material is prone to from fiber band, come off; Perhaps even dyeing effect is bad, causes the degradation or the instability of semiconduction waterstop.
Summary of the invention
Technical problem to be solved by this invention provides a kind of preparation method with high voltage direct current cable semiconduction waterstop; Semiconduction waterstop with this method processing not only can radially block water; Effective derived current; Neutralize space charge stops it to shift to isolator, and each item stable performance, lasting.
The preparation method of high voltage direct current cable semiconduction waterstop of the present invention, its process is: after fiber band is placed the semi-conductive screen dyestuff to wash to dye, add water-proofing powder again and be prepared from, wherein the semi-conductive screen dyestuff comprises following component and quality proportioning:
Z 150PH 1-10%
Tackifying resin 8-25%
Graphitized carbon black 1-4%
Zeolite 1-3%
AEO 1-4%
Water surplus.
Said tackifying resin is staybelite, modified terpene resin or petroleum resin.
Said graphitized carbon black can be selected Shawinigan black or superconduction carbon black for use, and when selecting the superconduction carbon black for use, its addition is 1-2%, and when selecting Shawinigan black for use, its addition is 3-4%.
Said zeolite is preferably the ultra micro low silica-alumina ratio zeolite of grain-size less than 0.1 μ m.
Beneficial effect of the present invention:
1, with the semiconduction waterstop of this method processing, dye coatings is firm, difficult drop-off.
2, the space charge that the semiconduction waterstop of processing with this method can neutralize and produce stops space charge to shift to isolator, reaches the purpose of effective elimination space charge.
3, even dyeing effect is good, dyes semiconduction waterstop each item stable performance of system, and persistence is good.
Embodiment
Below in conjunction with specific embodiment the present invention is described further.
Embodiment 1
A kind of preparation method of high voltage direct current cable semiconduction waterstop, its process is: after fiber band is placed the semi-conductive screen dyestuff to wash to dye, add water-proofing powder again and be prepared from, wherein the semi-conductive screen dyestuff comprises following component and quality proportioning:
Z 150PH 1%
Staybelite 8%
Superconduction carbon black 1%
Zeolite 1%
AEO 1%
Water 88%
Embodiment 2
A kind of preparation method of high voltage direct current cable semiconduction waterstop, its process is: after fiber band is placed the semi-conductive screen dyestuff to wash to dye, add water-proofing powder again and be prepared from, wherein the semi-conductive screen dyestuff comprises following component and quality proportioning:
Z 150PH 10%
Modified terpene resin 25%
Shawinigan black 4%
Zeolite 3%
AEO 4%
Water 54%
Embodiment 3
A kind of preparation method of high voltage direct current cable semiconduction waterstop, its process is: after fiber band is placed the semi-conductive screen dyestuff to wash to dye, add water-proofing powder again and be prepared from, wherein the semi-conductive screen dyestuff comprises following component and quality proportioning:
Z 150PH 5%
Modified terpene resin 12%
Superconduction carbon black 2%
Zeolite 2%
AEO 2%
Water 74%
Embodiment 4
A kind of preparation method of high voltage direct current cable semiconduction waterstop, its process is: after fiber band is placed the semi-conductive screen dyestuff to wash to dye, add water-proofing powder again and be prepared from, wherein the semi-conductive screen dyestuff comprises following component and quality proportioning:
Z 150PH 8%
Modified terpene resin 16%
Shawinigan black 3%
Zeolite 2.5%
AEO 3%
Water 67.5%
Said Z 150PH, as tackiness agent, select for use have higher degrees of polymerization, the pharmaceutical grade white powder Z 150PH of alcoholysis degree.Z 150PH is a kind of purposes water-soluble polymers quite widely; Performance is a typical polyhydric alcohols between plastics and rubber, and is similar with glucide; The molecular chain diameter is little; Intermolecular Forces is strong, polarity is big, and intensity is high, has unique powerful cementability, epithelium snappiness, smoothness, oil-proofness, solvent resistance, protective colloid property, insulativity, wear resistance and the water tolerance after special processing.The polymerization degree, alcoholysis degree are high more, and bonding strength is strong more.
Said tackifying resin as tackifier, is selected tackiness agent tackifying resin commonly used for use, like staybelite, modified terpene resin, petroleum resin etc.Has good polymer phase capacitive, good viscosity, inner cohesive force and good thermotolerance.
Said graphitized carbon black; For reducing the influence that radical etc. that quinonyl, hydroxyl or carboxyl etc. that carbon blacksurface exists contain oxygen and hydrogen atoms reduces the conduction factor, select Shawinigan black or superconduction carbon black for use, for processibility is extruded in raising; A kind of superconduction carbon black of better selecting for use; Like the Ketien Black EC of Dutch AKZO company, particle diameter is 15-30nm, and the BET specific surface area should be not less than 200m
2/ g.
Said zeolite, the low silica-alumina ratio zeolite of selecting for use light industry to use, a kind of better is to select the ultra micro zeolite of grain-size less than 0.1 μ m for use.
Zeolite has spacious skeleton structure, and by oxygen, silicon, three kinds of atomic building three-dimensional space of aluminium skeleton, the elementary cell in the skeleton structure of zeolite is to pile up silicon (aluminium) the oxygen tetrahedron that forms by four Sauerstoffatoms and a silicon (aluminium) atom.Component units ring, double base ring, cage (crystallization polyhedron) constitute three-dimensional columnar structure zeolite crystal step by step again for silicon-oxy tetrahedron and aluminum-oxygen tetrahedron.Because the various mode of connection of tetrahedron has just formed many holes and duct in zeolite structured.Tetrahedron can only link to each other with the summit, a promptly shared Sauerstoffatom, and can not " limit " or " face " link to each other.Aluminum-oxygen tetrahedron itself can not link to each other, and has a silicon-oxy tetrahedron therebetween at least.And silicon-oxy tetrahedron can directly link to each other.Silicon in the silicon-oxy tetrahedron can be constituted aluminum-oxygen tetrahedron by the aluminium atomic substitutions.But the aluminium atom is tervalent, so in aluminum-oxygen tetrahedron, have the electricity price of a Sauerstoffatom not obtain neutralization, and produce charge unbalance, makes whole aluminum-oxygen tetrahedron electronegative.Zeolite contains positively charged ion in the hole, contains negative charge in the skeleton oxygen, around positively charged ion, just forms powerful electric field like this; Attract the negative pole center of polar molecule; Thereby the space charge that can neutralize and produce, stop space charge to shift to isolator, reach the purpose of effective elimination space charge.
The low silica-alumina ratio structure has higher relatively skeleton electric density, often is accompanied by big cage and multidimensional duct, and the effect of neutralize space charge is outstanding.Ultra micro zeolite and general industry zeolite facies ratio are owing to have very little grain-size and very big specific surface area, surface atom number and body ratio sharply increase along with reducing of grain-size of atomicity mutually; Show tangible volume effect, surface effects and quantum size effect; Have better dispersiveness and consistency, add and be difficult for separating out the molecule proper alignment man-hour; Polymer architecture is regular, and physical and mechanical properties is good.
Said AEO has fabulous sticking power, fast drying; Wear resistance is strong, and good anti-chemical and water tolerance are arranged, and graphitized carbon black and zeolite are played powerful level-dyeing property, slow metachromia, perviousness, diffustivity; Can help graphitized carbon black and zeolite to be penetrated in the fiber band, can assemble, thereby reduce the dyeing speed of graphitized carbon black and zeolite with graphitized carbon black and zeolite molecules; Graphitized carbon black and zeolite are shifted to fiber band gradually, thereby reach the level dyeing purpose.
Said water is industrial deionized water, and the quality proportioning is the surplus after polyacrylate emulsion, superconduction carbon black, zeolite, the interpolation of dispersion agent precentagewise.
The used fiber band of the present invention can be pricked cable semi-conductive tapes such as non-woven fabrics, impregnation non-woven fabrics fiber band commonly used for non-woven fabric of polyester fiber, acupuncture gum sprayed cotton, heat, selects for use according to the request for utilization difference.Water-proofing powder is the water-absorbing resin of cable water-swellable commonly used.The dye well water-proofing powder can single face also can dual coated, one side can add buffering cotton yarn layer as required therein.
Above-mentioned these embodiments only are used to explain the present invention, but do not limit the scope of the invention, and after having read the present invention, those skilled in the art all fall within the application's accompanying claims institute restricted portion to the modification of the various equivalent form of values of the present invention.
?
Claims (4)
1. the preparation method of a high voltage direct current cable semiconduction waterstop, its process is: after fiber band is placed the semi-conductive screen dyestuff to wash to dye, adds water-proofing powder again and is prepared from,
It is characterized in that said semi-conductive screen dyestuff comprises following component and quality proportioning:
Z 150PH 1-10%
Tackifying resin 8-25%
Graphitized carbon black 1-4%
Zeolite 1-3%
AEO 1-4%
Water surplus.
2. preparing method's material of high voltage direct current cable semiconduction waterstop according to claim 1 is characterized in that said tackifying resin is staybelite, modified terpene resin or petroleum resin.
3. the preparation method of high voltage direct current cable semiconduction waterstop according to claim 1 and 2; It is characterized in that graphitized carbon black is Shawinigan black or superconduction carbon black, when selecting the superconduction carbon black for use, its addition is 1-2%; When selecting Shawinigan black for use, its addition is 3-4%.
4. the preparation method of high voltage direct current cable semiconduction waterstop according to claim 1 and 2 is characterized in that said zeolite is the ultra micro low silica-alumina ratio zeolite of grain-size less than 0.1 μ m.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103784801A CN102516694B (en) | 2011-11-24 | 2011-11-24 | Preparation method for semiconductive waterproofing tape of high-voltage direct-current cable |
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| CN2011103784801A CN102516694B (en) | 2011-11-24 | 2011-11-24 | Preparation method for semiconductive waterproofing tape of high-voltage direct-current cable |
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| CN102516694A true CN102516694A (en) | 2012-06-27 |
| CN102516694B CN102516694B (en) | 2013-07-31 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696260A (en) * | 2013-12-17 | 2014-04-02 | 无锡江南电缆有限公司 | Dye for processing semiconductive waterproofing tape |
| CN103696263A (en) * | 2013-12-17 | 2014-04-02 | 无锡江南电缆有限公司 | Dye for processing semiconductive shielding tape |
| CN105131419A (en) * | 2015-09-30 | 2015-12-09 | 国网智能电网研究院 | Semi-conductive shield material used for high-voltage direct-current cable and preparation method thereof |
| CN107533885A (en) * | 2015-04-22 | 2018-01-02 | 普睿司曼股份公司 | Energy cable with crosslinking electrical insulation system, and the method for therefrom extracting bridging property accessory substance |
| RU2656473C1 (en) * | 2017-04-11 | 2018-06-05 | Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский Томский политехнический университет" | Waterproofing composition |
| CN108878038A (en) * | 2018-06-21 | 2018-11-23 | 无锡腾华电缆材料科技有限公司 | Single-sided insulation waterstop production technology |
| US10325694B2 (en) | 2013-10-23 | 2019-06-18 | Prysmian S.P.A | Energy cable having a crosslinked electrically insulating layer, and method for extracting crosslinking by-products therefrom |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1607413A (en) * | 2003-10-16 | 2005-04-20 | 上海电缆研究所 | Expansion water blocking tape for optical cable |
| CN101567236A (en) * | 2008-04-25 | 2009-10-28 | 扬州腾飞电缆电器材料有限公司 | Production method of semi-conductive buffer water-blocking band |
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2011
- 2011-11-24 CN CN2011103784801A patent/CN102516694B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1607413A (en) * | 2003-10-16 | 2005-04-20 | 上海电缆研究所 | Expansion water blocking tape for optical cable |
| CN101567236A (en) * | 2008-04-25 | 2009-10-28 | 扬州腾飞电缆电器材料有限公司 | Production method of semi-conductive buffer water-blocking band |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10325694B2 (en) | 2013-10-23 | 2019-06-18 | Prysmian S.P.A | Energy cable having a crosslinked electrically insulating layer, and method for extracting crosslinking by-products therefrom |
| CN103696260A (en) * | 2013-12-17 | 2014-04-02 | 无锡江南电缆有限公司 | Dye for processing semiconductive waterproofing tape |
| CN103696263A (en) * | 2013-12-17 | 2014-04-02 | 无锡江南电缆有限公司 | Dye for processing semiconductive shielding tape |
| CN107533885A (en) * | 2015-04-22 | 2018-01-02 | 普睿司曼股份公司 | Energy cable with crosslinking electrical insulation system, and the method for therefrom extracting bridging property accessory substance |
| US10361010B2 (en) | 2015-04-22 | 2019-07-23 | Prysmian S.P.A. | Energy cable having a crosslinked electrically insulating system, and method for extracting crosslinking by-products therefrom |
| CN107533885B (en) * | 2015-04-22 | 2019-11-12 | 普睿司曼股份公司 | Energy cable with crosslinking electrical insulation system, and the method for therefrom extracting bridging property by-product |
| CN105131419A (en) * | 2015-09-30 | 2015-12-09 | 国网智能电网研究院 | Semi-conductive shield material used for high-voltage direct-current cable and preparation method thereof |
| RU2656473C1 (en) * | 2017-04-11 | 2018-06-05 | Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский Томский политехнический университет" | Waterproofing composition |
| CN108878038A (en) * | 2018-06-21 | 2018-11-23 | 无锡腾华电缆材料科技有限公司 | Single-sided insulation waterstop production technology |
| CN108878038B (en) * | 2018-06-21 | 2020-03-27 | 无锡腾华电缆材料科技有限公司 | Production process of single-sided insulating water-blocking tape |
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| CN102516694B (en) | 2013-07-31 |
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