CN103944132A - Modified polypropylene composite tubular product for protecting high-voltage cable - Google Patents
Modified polypropylene composite tubular product for protecting high-voltage cable Download PDFInfo
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- CN103944132A CN103944132A CN201410178844.5A CN201410178844A CN103944132A CN 103944132 A CN103944132 A CN 103944132A CN 201410178844 A CN201410178844 A CN 201410178844A CN 103944132 A CN103944132 A CN 103944132A
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Abstract
Provided is a modified polypropylene composite tubular product for protecting a high-voltage cable. The modified polypropylene composite tubular product is composed of a middle layer serving as a framework and inner and outer layers, wherein the middle layer is a cylinder formed by extruding a metal wire woven mesh and a polyethylene material, and the inner and outer layers are formed by extruding a modified polypropylene material on the inner and outer sides of the middle layer. The modified polypropylene composite tubular product has the advantages that modified MPP resin serves as a main material for the inner and outer layers of the tubular product, PP/SBS serves as a modification material for the MPP resin, and calcium carbonate serves as a processing agent. Therefore, the inner and outer layers of the tubular product has enough strength and toughness, good corrosion resistance and temperature-resisting performance, and the cylinder formed by extruding the metal wire woven mesh and the polyethylene material and serving as the framework is arranged in the inside. Accordingly, the respective advantages of a metal material, a polyethylene material and a modified MPP material can be fully utilized, the physical mechanical performance of the product is comprehensively improved, and the damage resistance performance of the tubular product in the construction and usage process is enhanced.
Description
Technical field
The invention belongs to electric power protective materials technical field, particularly relate to a kind of high-tension cable protection modified polypropene composite pipe.
Background technology
In electric power system, current conventional high-tension cable is embedded in underground conventionally, and outside is coated with the trombone slide as overcoat.Show according to the statistics of Tianjin Power Grid power transmission cable fault in recent years, 70% high-tension cable fault causes because of outside destroy, and wherein the external force fault of the above high-tension cable of 110kV nearly 80% causes because trombone slide is destroyed.Once trombone slide is damaged, not only the required repairing time long, generally needs about 15 days, thereby bring very big risk to the operation of electrical network, and in the situation that not calculating electric quantity loss, direct economic loss is just very large.For example the 110kV of Tianjin state-two cable fault, changes two-phase cable, does 4 transition joints, 830,000 yuan of direct costs; China's eight 220kV cable faults, change 1 phase cable again, do 2 transition joints, 2,300,000 yuan of direct costs.
Why trombone slide is occurred repeatedly by the situation of outside destroy, trace it to its cause, first be because the barrier propterty of the conventional trombone slide tubing of being made up of polypropylene (PP) resin material is lower at present, it is underground that next is exactly the dark Tibetan of trombone slide, can only by some indirectly means examine its position, therefore the accuracy of data is not high.In addition, along with municipal administration requires upgrading, the use of non-excavating construction mode is more and more frequent, and trombone slide has compared with being all the push pipe of non-excavating construction mode that cost is low, short construction period and the advantage such as difficulty of construction is low, and therefore the usage ratio of trombone slide in construction is very high.So in the situation that can not stoping or reduce trombone slide use, how to improve the intensity of trombone slide tubing, strengthen its anti-damage performance, just seem particularly important.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of existing good corrosion resistance heat resistance, also have higher intensity and toughness, ability impact failure, makes external force and foreign object be difficult for touching the high-tension cable protection modified polypropene composite pipe of high-tension cable.
In order to achieve the above object, high-tension cable protection provided by the invention is made up of the intermediate layer as skeleton and ectonexine with modified polypropene composite pipe, wherein intermediate layer is the cylinder being co-extruded by woven wire cloth and polythene material, and ectonexine is adopted the mode of co-extrusion to be formed on the interior lateral surface in above-mentioned intermediate layer and made by modified polypropylene material;
Described modified polypropylene material is made up of the following component in weight portion:
81～85 parts of modified polypropene (MPP) resins
9～11 parts of polypropylene/styrene-butadiene-styrene block copolymers (PP/SBS)
1～2 part of polypropylene (PP) color masterbatch
2～8 parts, calcium carbonate;
Described polythene material is made up of the following component in weight portion:
90～95 parts of polyethylene (PE) resins
2 parts of polyethylene (PE) color masterbatches
3～8 parts, calcium carbonate.
Described woven wire cloth is to be formed by the wire cross braiding of warp, broadwise setting.
Described diameter wiry is 0.6～1.0mm, and the distance between adjacent wire is 3～5mm.
Described ectonexine and the volume ratio in intermediate layer are 20: 60: 20.
High-tension cable protection provided by the invention has following beneficial effect with modified polypropene composite pipe:
1, the primary raw material of the present invention using modification MPP resin as tubing ectonexine, modified materials using PP/SBS as MPP resin, using calcium carbonate as processing aid, therefore can make tubing ectonexine there is enough intensity and toughness, good corrosion resistance and heat resistance, in addition inside is provided with the cylinder being co-extruded by woven wire cloth and polythene material as skeleton, therefore can make full use of metal material, polythene material and modification MPP material advantage separately, thereby comprehensively improve the physical and mechanical property of product, strengthen the anti-damage performance of tubing in installation and use procedure.
2, can be according to different needs, utilize the method for adjusting wire material parameter to meet the requirement of constructing in various special locations, such as bad ground non-excavating construction and high density construction area non-excavating construction etc.
3, adopt three-layer co-extruded technology can make the range of application of modified polypropylene pipes more extensive, can meet the needs of different construction requirements on market and different applications.
Brief description of the drawings
Fig. 1 is high-tension cable protection modified polypropene compound tubing structure schematic diagram provided by the invention.
Fig. 2 is A portion structure enlarged drawing in Fig. 1.
Embodiment
Below in conjunction with the drawings and specific embodiments, high-tension cable protection provided by the invention is elaborated with modified polypropene composite pipe.
Embodiment 1:
As shown in Figure 1 and Figure 2, the high-tension cable protection that the present embodiment provides is made up of the intermediate layer 3 as skeleton and ectonexine 1 with modified polypropene composite pipe, wherein intermediate layer 3 is to be 0.6mm and edge warp, the woven wire cloth 2 of broadwise setting and the cylinder that polythene material is co-extruded by diameter, distance between adjacent wire is 3mm, and polythene material is made up of 90 parts of polyvinyl resins, 2 parts of polyethylene color masterbatch and 4 parts of calcium carbonate; 1 of ectonexine is adopted the mode of co-extrusion to be formed on the interior lateral surface in above-mentioned intermediate layer 3 and made by modified polypropylene material;
Described modified polypropylene material is made up of the following component in weight portion:
81 parts of modified polypropylene resins
9 parts of polypropylene/styrene-butadiene-styrene block copolymers
1 part, polypropylene colorant material
3 parts, calcium carbonate.
Preparation method be adopt four machines three-layer co-extruded MPP tubing special equipment first by the above-mentioned polythene material co-extrusion mixing on woven wire cloth 2 and make intermediate layer 3, then the above-mentioned modified polypropylene material co-extrusion mixing be can be made on the interior lateral surface in intermediate layer 3 to high-tension cable protection modified polypropene composite pipe.High-tension cable protection is 20: 60: 20 by internal layer, intermediate layer 3 and outer field volume ratio on modified polypropene composite pipe.
Embodiment 2:
As shown in Figure 1 and Figure 2, the high-tension cable protection that the present embodiment provides is made up of the intermediate layer 3 as skeleton and ectonexine 1 with modified polypropene composite pipe, wherein intermediate layer 3 is to be 1.0mm and edge warp, the woven wire cloth 2 of broadwise setting and the cylinder that polythene material is co-extruded by diameter, distance between adjacent wire is 5mm, and polythene material is made up of 95 parts of polyvinyl resins, 2 parts of polyethylene color masterbatch and 7 parts of calcium carbonate; 1 of ectonexine is adopted the mode of co-extrusion to be formed on the interior lateral surface in above-mentioned intermediate layer 3 and made by modified polypropylene material;
Described modified polypropylene material is made up of the following component in weight portion:
85 parts of modified polypropylene resins
11 parts of polypropylene/styrene-butadiene-styrene block copolymers
2 parts, polypropylene colorant material
7 parts, calcium carbonate.
Preparation method be adopt four machines three-layer co-extruded MPP tubing special equipment first by the above-mentioned polythene material co-extrusion mixing on woven wire cloth 2 and make intermediate layer 3, then the above-mentioned modified polypropylene material co-extrusion mixing be can be made on the interior lateral surface in intermediate layer 3 to high-tension cable protection modified polypropene composite pipe.High-tension cable protection is 20: 60: 20 by internal layer, intermediate layer 3 and outer field volume ratio on modified polypropene composite pipe.
Embodiment 3:
As shown in Figure 1 and Figure 2, the high-tension cable protection that the present embodiment provides is made up of the intermediate layer 3 as skeleton and ectonexine 1 with modified polypropene composite pipe, wherein intermediate layer 3 is to be 0.8mm and edge warp, the woven wire cloth 2 of broadwise setting and the cylinder that polythene material is co-extruded by diameter, distance between adjacent wire is 4mm, and polythene material is made up of 93 parts of polyvinyl resins, 2 parts of polyethylene color masterbatch and 5 parts of calcium carbonate; 1 of ectonexine is adopted the mode of co-extrusion to be formed on the interior lateral surface in above-mentioned intermediate layer 3 and made by modified polypropylene material;
Described modified polypropylene material is made up of the following component in weight portion:
83 parts of acrylic resins
10 parts of polypropylene/styrene-butadiene-styrene block copolymers
1.5 parts, polypropylene colorant material
5 parts, calcium carbonate.
Preparation method be adopt four machines three-layer co-extruded MPP tubing special equipment first by the above-mentioned polythene material co-extrusion mixing on woven wire cloth 2 and make intermediate layer 3, then the above-mentioned modified polypropylene material co-extrusion mixing be can be made on the interior lateral surface in intermediate layer 3 to high-tension cable protection modified polypropene composite pipe.High-tension cable protection is 20: 60: 20 by internal layer, intermediate layer 3 and outer field volume ratio on modified polypropene composite pipe.
Claims (4)
1. a high-tension cable protection modified polypropene composite pipe, it is characterized in that: it is made up of the intermediate layer as skeleton (3) and ectonexine (1), wherein intermediate layer (3) are the cylinders being co-extruded by woven wire cloth (2) and polythene material, and ectonexine (1) is adopted the mode of co-extrusion to be formed on the interior lateral surface in above-mentioned intermediate layer (3) and made by modified polypropylene material;
Described modified polypropylene material is made up of the following component in weight portion:
81～85 parts of modified polypropylene resins
9～11 parts of polypropylene/styrene-butadiene-styrene block copolymers
1～2 part, polypropylene colorant material
2～8 parts, calcium carbonate;
Described polythene material is made up of the following component in weight portion:
90～95 parts of polyvinyl resins
2 parts of polyethylene color masterbatch
3～8 parts, calcium carbonate.
2. modified polypropene composite pipe is used in high-tension cable protection according to claim 1, it is characterized in that: described woven wire cloth (2) is to be formed by the wire cross braiding of warp, broadwise setting.
3. modified polypropene composite pipe is used in high-tension cable protection according to claim 2, it is characterized in that: described diameter wiry is 0.6～1.0mm, and the distance between adjacent wire is 3～5mm.
4. modified polypropene composite pipe is used in high-tension cable protection according to claim 1, it is characterized in that: described ectonexine (1) and the volume ratio of intermediate layer (3) are 20: 60: 20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410178844.5A CN103944132A (en) | 2014-04-29 | 2014-04-29 | Modified polypropylene composite tubular product for protecting high-voltage cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410178844.5A CN103944132A (en) | 2014-04-29 | 2014-04-29 | Modified polypropylene composite tubular product for protecting high-voltage cable |
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| CN103944132A true CN103944132A (en) | 2014-07-23 |
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| CN201410178844.5A Pending CN103944132A (en) | 2014-04-29 | 2014-04-29 | Modified polypropylene composite tubular product for protecting high-voltage cable |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106905590A (en) * | 2017-04-20 | 2017-06-30 | 温州网牌电线电缆有限公司 | Power cable protecting pipe and preparation method thereof |
| CN108000833A (en) * | 2017-11-03 | 2018-05-08 | 金华市华宇管业有限公司 | Height filling environmental protection MPP power pipe preparation processes |
| CN110982265A (en) * | 2019-12-08 | 2020-04-10 | 国网江苏省电力有限公司滨海县供电分公司 | High-toughness flame-retardant power cable and preparation method thereof |
| CN112531601A (en) * | 2020-12-22 | 2021-03-19 | 南京特塑复合材料有限公司 | Composite material cable conduit |
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| CN101967246A (en) * | 2010-10-20 | 2011-02-09 | 杭州联通管业有限公司 | Modified polypropylene pipe used for protecting high-voltage power cable |
| CN201851796U (en) * | 2010-11-26 | 2011-06-01 | 程新显 | Polypropylene and polyethylene composite pipe |
| CN202708353U (en) * | 2012-08-15 | 2013-01-30 | 福建晟扬管道科技有限公司 | Modified polypropylene three-layer composite pipe for underground coal mine |
| CN102942763A (en) * | 2012-11-02 | 2013-02-27 | 宏岳塑胶集团有限公司 | Preparation method of tensile compressive high temperature resistant modified polypropylene power pipe |
| CN103178478A (en) * | 2011-12-21 | 2013-06-26 | 上海瑞河管业有限公司 | Modified polypropylene protection tube for buried high-voltage power cables |
| CN103595001A (en) * | 2013-11-26 | 2014-02-19 | 无锡格莱德科技有限公司 | Composite reinforced HDPE cable sheath tube |
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2014
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101967246A (en) * | 2010-10-20 | 2011-02-09 | 杭州联通管业有限公司 | Modified polypropylene pipe used for protecting high-voltage power cable |
| CN201851796U (en) * | 2010-11-26 | 2011-06-01 | 程新显 | Polypropylene and polyethylene composite pipe |
| CN103178478A (en) * | 2011-12-21 | 2013-06-26 | 上海瑞河管业有限公司 | Modified polypropylene protection tube for buried high-voltage power cables |
| CN202708353U (en) * | 2012-08-15 | 2013-01-30 | 福建晟扬管道科技有限公司 | Modified polypropylene three-layer composite pipe for underground coal mine |
| CN102942763A (en) * | 2012-11-02 | 2013-02-27 | 宏岳塑胶集团有限公司 | Preparation method of tensile compressive high temperature resistant modified polypropylene power pipe |
| CN103595001A (en) * | 2013-11-26 | 2014-02-19 | 无锡格莱德科技有限公司 | Composite reinforced HDPE cable sheath tube |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106905590A (en) * | 2017-04-20 | 2017-06-30 | 温州网牌电线电缆有限公司 | Power cable protecting pipe and preparation method thereof |
| CN108000833A (en) * | 2017-11-03 | 2018-05-08 | 金华市华宇管业有限公司 | Height filling environmental protection MPP power pipe preparation processes |
| CN110982265A (en) * | 2019-12-08 | 2020-04-10 | 国网江苏省电力有限公司滨海县供电分公司 | High-toughness flame-retardant power cable and preparation method thereof |
| CN110982265B (en) * | 2019-12-08 | 2022-06-17 | 国网江苏省电力有限公司滨海县供电分公司 | High-toughness flame-retardant power cable and preparation method thereof |
| CN112531601A (en) * | 2020-12-22 | 2021-03-19 | 南京特塑复合材料有限公司 | Composite material cable conduit |
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Application publication date: 20140723 |