CN104031337A - Polyvinyl chloride sheathing compound for communication cable - Google Patents
Polyvinyl chloride sheathing compound for communication cable Download PDFInfo
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- CN104031337A CN104031337A CN201410271030.6A CN201410271030A CN104031337A CN 104031337 A CN104031337 A CN 104031337A CN 201410271030 A CN201410271030 A CN 201410271030A CN 104031337 A CN104031337 A CN 104031337A
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Abstract
The invention discloses a polyvinyl chloride sheathing compound for a communication cable. The polyvinyl chloride sheathing compound comprises the following components in parts by weight: 100 parts of polyvinyl chloride (PVC) resin, 38 parts of trioctyl trimellitate, 5 parts of rare earth calcium-zinc compound stabilizer, 10 parts of antimonous oxide, 0.5 part of lubricating agent, 0.2 part of bisphenol A and 8 parts of water resistant modifier, wherein the water resistant modifier consists of 2 parts of calcined kaolin, 3.7 parts of nanosilicon dioxide and 0.3 part of gamma-glycidyl ether propoxytrimethoxy silane; the water resistant modifier is formed by nano-barium sulfate, calcined kaolin and nanosilicon dioxide through gamma-glycidyl ether propoxytrimethoxy silane coating treatment; and the lubricating agent is selected from one or more of stearic acid, barium stearate, calcium stearate, paraffin and polyethylene wax. The material can adapt to a complex service environment, can be water-resistant for a long time and keeps excellent electrical insulation property, mechanical property and flame retardant property.
Description
Technical field
The present invention relates to the technical field of communication cable, in particular, the present invention relates to a kind of communication cable pvc sheathing compound.
Background technology
The sheath material of all kinds of cables such as telecommunication cable, polyvinyl chloride cable material is adopted by wide sending out, it can meet the demand of insulation and sheath substantially, but the continuous expansion along with electric wire range of application, performance requriements to polyvinyl chloride cable material is also more and more higher, and the water-fast and flame retardant properties of polyvinyl chloride cable material especially of the prior art needs further to be improved.
Therefore higher to every physical and chemical index requirement of the insulating material using, as water-fast in needs, insulation and high insulating property etc. in water.PVC resin itself has good water resistance, but because CABLE MATERIALS is produced necessary all kinds of softening agent, stablizer, all kinds of weighting agent (potter's clay, calcium carbonate etc.) of adding, has inevitably reduced the immersion electrical property of product.The general high-quality softening agent that adopts in prior art, reduces or without the mode of weighting agent, but product index performance is still difficult to meet the demands.
Summary of the invention
In order to solve the above-mentioned technical problem existing in prior art, the object of the present invention is to provide a kind of communication cable pvc sheathing compound, this material can adapt to complicated environment for use, can be water-fast for a long time, and keep good electrical insulation capability, mechanical property and flame retardant properties.
In order to solve the problems of the technologies described above and realize above-mentioned purpose, the present invention takes following technical scheme:
A communication cable pvc sheathing compound, is characterized in that: the component that comprises following weight part: polyvinyl chloride resin: 100 parts, and trioctyl trimellitate: 38 parts, rare earth calcium zinc one package stabilizer: 5 parts, antimonous oxide: 10 parts, lubricant
: 0.5 part,dihydroxyphenyl propane: 0.2 part, water-fast properties-correcting agent: 8 parts; Nano barium sulfate in water-fast properties-correcting agent wherein: 2 parts, calcined kaolin: 3.7 parts, nano silicon: 2 parts, γ-glycidyl ether oxygen propyl trimethoxy silicane: 0.3 part;
Described water-fast properties-correcting agent is formed through coated processing of γ-glycidyl ether oxygen propyl trimethoxy silicane by nano barium sulfate, calcined kaolin and nano silicon;
Described lubricant is selected from one or more of stearic acid, hard barium, calcium stearate, paraffin or polyethylene wax.
In technique scheme, further improve technical scheme as follows:
1. in such scheme, described water-fast properties-correcting agent is prepared by following steps:
First, the nano barium sulfate of above-mentioned parts by weight, calcined kaolin and nano silicon mixed and form mixed powder at 90-100 ℃ of processed 3-5min;
Then, the silane coupling agent silane of described parts by weight be sprayed to mixed powder surface and stir the water-fast properties-correcting agent described in obtaining.
2. in such scheme, described PVC resin is selected from SG2 type PVC resin or SG3 type PVC resin.
3. in such scheme, described oxidation inhibitor is selected from one or more in phenolic antioxidant, amine antioxidants, sulfur type antioxidant and phosphite ester kind antioxidant.
4. in such scheme, described lubricant is polyethylene wax: 0.2 part.
Because technique scheme is used, the present invention compared with prior art has following advantages:
1. communication cable pvc sheathing compound of the present invention, its softening agent and weighting agent all have certain water-absorbent, easily occur product performance decline phenomenon under wet environment.The present invention has considered the consistency of feed composition and water, selects hydrophobic material; And to carrying out after pulvis predrainage, surface is coated processes, and improves the hydrophobic performance of product, and then product can be used for a long time in wet environment.
2. communication cable pvc sheathing compound of the present invention, by particular components design and coated processing of described water-fast properties-correcting agent, product can be used for a long time under Soaking environment, and its mechanical stability is good, and electric property is stable.
3. the water-fast properties-correcting agent material selection nano level raw material in pvc sheathing compound for communication cable of the present invention, improve the tightness of product, together with the stablizer of applying, in wet environment, there is water resistant aging resistance and water resistant tree formation ability, further improved stability and the life cycle of product.
Embodiment
Embodiment. below in conjunction with specific embodiment, technical scheme of the present invention is further elaborated, but embodiments of the present invention are not limited to this.
Communication cable pvc sheathing compound in described embodiment, raw material comprises SG2 type PVC resin or SG3 type PVC resin: 100 weight parts, TOTM: 32-38 part, calcium zinc stabilizer or rare earth calcium zinc one package stabilizer: 4-6 part, antimonous oxide: 8-10 part, water-fast properties-correcting agent: 8-12 part; And described water-fast properties-correcting agent is formed through coated processing of silane coupling agent by nano barium sulfate, calcined kaolin and nano silicon, in described water-fast properties-correcting agent, the parts by weight of nano barium sulfate are 2-3 part, the parts by weight of calcined kaolin are 4-7.5 part, the parts by weight of nano silicon are 2-3 part, and the umber of silane coupling agent is 0.3-0.5 part.In addition described data cable can also comprise by waterproof flame retardant PVC CABLE MATERIALS: the oxidation inhibitor of 0.2-0.3 weight part; And described oxidation inhibitor is selected from one or more in phenolic antioxidant, amine antioxidants, sulfur type antioxidant and phosphite ester kind antioxidant, for example dihydroxyphenyl propane.And described data cable can also comprise by waterproof flame retardant PVC CABLE MATERIALS: 0.3-0.6 weight part lubricant; And described lubricant is selected from stearic acid, hard barium, calcium stearate, paraffin or polyethylene wax one or more.Wherein, described silane coupling agent can be selected from vinyl three (β-methoxy ethoxy) silane, vinyltrimethoxy silane or γ-glycidyl ether oxygen propyl trimethoxy silicane, triethoxy vinyl silanes, trimethoxy vinyl silanes, 3-methacryloxypropyl trimethoxy silane, 3-TSL 8330,3-aminopropyltriethoxywerene werene, N-(2-amino-ethyl)-3-TSL 8330,3-glycidoxypropyltrimewasxysilane a kind of.
Communication cable prepares by following preparation method with pvc sheathing compound in the present embodiment: PVC resin is added to high-speed mixer, start stirring at low speed, rotating speed 500rpm, add softening agent, start high-speed stirring, rotating speed 1000rpm, treats that material temperature rises to 80 ℃ and adds other each constituent materials, continue to be stirred to 110 ℃ of materials of temperature and be dry powder, open baiting valve blowing.The compound being stirred puts that to twin screw, to carry out extrusion molding mixing, then enter single multiple screw extruder granulation, adopt the fervent granulation process of die face, the particle of making enters first step whirlwind cooling separator, second stage whirlwind cooling separator, air-cooled vibratory screening apparatus, third stage whirlwind cooling separator by blower fan transport pipe.Finally carry out finished product packing; Wherein, described water-fast properties-correcting agent is prepared by following steps: first, the nano barium sulfate of above-mentioned parts by weight, calcined kaolin and nano silicon are dropped in high-speed mixer, high-speed mixing is to 90 ~ 100 ℃ of 3 ~ 5min that dewater of temperature, silane coupling agent is to vaporific spraying in high-speed mixer powder is coated to processing, continue high-speed mixing and carry out the coated processing reaction 3 ~ 5min of material surface.Emit material and make water-fast properties-correcting agent after cooling.
Concrete technical scheme as:
SG3 type PVC resin: 100 parts, TOTM: 38 parts, rare earth calcium zinc one package stabilizer: 5 parts, antimonous oxide: 10 parts, polyethylene wax: 0.5 part, dihydroxyphenyl propane: 0.2 part, water-fast properties-correcting agent: 8 parts, nano barium sulfate wherein: 2 parts, calcined kaolin: 3.7 parts, nano silicon: 2 parts, γ-glycidyl ether oxygen propyl trimethoxy silicane: 0.3 part.
CABLE MATERIALS is made electric wire through detecting, and the physicals obtaining is as follows.
Water resistance test adopts < < ASTM D2219-02 electric wire and 5.5 test conditionss of pvc material specification > > (electric current 60Hz frequency, immersion temperature: 50 ± 1 ℃) for cable.
(1), 1-14d change in dielectric constant rate is that 1.6%, 7-14d change in dielectric constant rate is 0.3%, test result analysis: product is through accelerating water absorption test, and change in dielectric constant rate is much smaller than standard (1-14d, 10%; 7-14d, 5%) requirement, product has good water resistance.
(2), volume specific resistance (GB/T 1410-2006) ohm meter 10
13, A: water inlet front volume resistivity is 2.7* 10
13; B: after immersion 1d, volume specific resistance is 2.6* 10
13; C: after immersion 14d, volume specific resistance is 2.6* 10
13.
Above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that spirit is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (4)
1. a communication cable pvc sheathing compound, is characterized in that: the component that comprises following weight part: polyvinyl chloride resin: 100 parts, and trioctyl trimellitate: 38 parts, rare earth calcium zinc one package stabilizer: 5 parts, antimonous oxide: 10 parts, lubricant
: 0.5 part,dihydroxyphenyl propane: 0.2 part, water-fast properties-correcting agent: 8 parts; Nano barium sulfate in water-fast properties-correcting agent wherein: 2 parts, calcined kaolin: 3.7 parts, nano silicon: 2 parts, γ-glycidyl ether oxygen propyl trimethoxy silicane: 0.3 part;
Described water-fast properties-correcting agent is formed through coated processing of γ-glycidyl ether oxygen propyl trimethoxy silicane by nano barium sulfate, calcined kaolin and nano silicon;
Described lubricant is selected from one or more of stearic acid, hard barium, calcium stearate, paraffin or polyethylene wax.
2. communication cable pvc sheathing compound claimed in claim 1, is characterized in that: described water-fast properties-correcting agent is prepared by following steps:
First, the nano barium sulfate of above-mentioned parts by weight, calcined kaolin and nano silicon mixed and form mixed powder at 90-100 ℃ of processed 3-5min;
Then, the silane coupling agent silane of described parts by weight be sprayed to mixed powder surface and stir the water-fast properties-correcting agent described in obtaining.
3. the communication cable pvc sheathing compound described in claim 1 or 2, is characterized in that: described PVC resin is selected from SG2 type PVC resin or SG3 type PVC resin.
4. the communication cable pvc sheathing compound described in claim 1 or 2, is characterized in that: described lubricant is polyethylene wax: 0.2 part.
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CN201410271030.6A CN104031337B (en) | 2012-11-29 | 2012-11-29 | Polyvinyl chloride sheathing compound for communication cable |
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CN201210495901.3A CN102952357B (en) | 2012-11-29 | 2012-11-29 | Waterproof and flame-retarded PVC (polyvinyl chloride) cable material for data cable and preparation method thereof |
CN201410271030.6A CN104031337B (en) | 2012-11-29 | 2012-11-29 | Polyvinyl chloride sheathing compound for communication cable |
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CN201210495901.3A Division CN102952357B (en) | 2012-11-29 | 2012-11-29 | Waterproof and flame-retarded PVC (polyvinyl chloride) cable material for data cable and preparation method thereof |
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CN104031337B CN104031337B (en) | 2017-01-11 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107353533A (en) * | 2017-07-06 | 2017-11-17 | 无为华兴高分子材料有限公司 | A kind of fire-retardant low halogen plastic products |
CN107797207A (en) * | 2017-12-08 | 2018-03-13 | 江苏亨通光电股份有限公司 | A kind of flexible aerial leading in cable of all dielectric |
CN113563675A (en) * | 2021-06-22 | 2021-10-29 | 杭州永通新材料有限公司 | Special high-electrical-property polyvinyl chloride cable material for semi-hard ultrahigh-voltage cable |
CN115109308A (en) * | 2022-08-01 | 2022-09-27 | 广州嘉德乐生化科技有限公司 | Lubricant containing glyceryl monostearate and application thereof in plastics |
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CN1847304A (en) * | 2005-04-15 | 2006-10-18 | 江苏圣安电缆有限公司 | Environment friendly soft PVC plastic without heavy metal for electric wire and cable |
US20080194736A1 (en) * | 2007-02-13 | 2008-08-14 | Minqiu Lu | PVC nanocomposite manufacturing technology and applications |
CN102585396A (en) * | 2011-12-28 | 2012-07-18 | 上海特缆电工科技有限公司 | Water-resistant polyvinyl chloride (PVC) cable insulating material |
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2012
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN1847304A (en) * | 2005-04-15 | 2006-10-18 | 江苏圣安电缆有限公司 | Environment friendly soft PVC plastic without heavy metal for electric wire and cable |
US20080194736A1 (en) * | 2007-02-13 | 2008-08-14 | Minqiu Lu | PVC nanocomposite manufacturing technology and applications |
CN102585396A (en) * | 2011-12-28 | 2012-07-18 | 上海特缆电工科技有限公司 | Water-resistant polyvinyl chloride (PVC) cable insulating material |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107353533A (en) * | 2017-07-06 | 2017-11-17 | 无为华兴高分子材料有限公司 | A kind of fire-retardant low halogen plastic products |
CN107797207A (en) * | 2017-12-08 | 2018-03-13 | 江苏亨通光电股份有限公司 | A kind of flexible aerial leading in cable of all dielectric |
CN113563675A (en) * | 2021-06-22 | 2021-10-29 | 杭州永通新材料有限公司 | Special high-electrical-property polyvinyl chloride cable material for semi-hard ultrahigh-voltage cable |
CN113563675B (en) * | 2021-06-22 | 2023-08-29 | 杭州永通新材料有限公司 | Special high-electrical-performance polyvinyl chloride cable material for semi-hard ultra-high voltage cable |
CN115109308A (en) * | 2022-08-01 | 2022-09-27 | 广州嘉德乐生化科技有限公司 | Lubricant containing glyceryl monostearate and application thereof in plastics |
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