CN103840420A - Modified polypropylene composite pipe for protecting high-voltage cables - Google Patents
Modified polypropylene composite pipe for protecting high-voltage cables Download PDFInfo
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- CN103840420A CN103840420A CN201410090976.2A CN201410090976A CN103840420A CN 103840420 A CN103840420 A CN 103840420A CN 201410090976 A CN201410090976 A CN 201410090976A CN 103840420 A CN103840420 A CN 103840420A
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Abstract
Provided is a modified polypropylene composite pipe for protecting high-voltage cables. The modified polypropylene composite pipe is composed of a middle layer, an inner layer and an outer layer. The middle layer is a cylinder formed by weaving of metal wires, and the inner layer and the outer layer are formed by the fact that modified polypropylene composite materials are formed on the inner side face and the outer side face of the middle layer. The modified polypropylene composite materials are composed of, by weight, 80-86 parts of MPP resin, 8-12 parts of PP/SBS, 1-2 parts of PP color masterbatch and 1-8 parts of calcium carbonate. According to the modified polypropylene composite pipe for protecting the high-voltage cables, the modified MPP resin is the main raw materials of the inner layer and the outer layer of the pipe, the PP/SBS is used as MPP resin modified materials, the calcium carbonate is used as an auxiliary, so that the inner layer and the outer layer of the pipe can have enough strength, toughness, good corrosion resistance and good temperature resistance performance, the cylinder which is formed by weaving the metal wires is arranged in the pipe, so that the respective advantages of the metal materials and the modified MPP materials can be fully utilized, accordingly, the physical and mechanical properties of products are improved, and the damage resistance performance of the pipe in the mounting construction and using 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 formed by metal wire knitted, 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:
80～86 parts of modified polypropene (MPP) resins
8～12 parts of polypropylene/styrene-butadiene-styrene block copolymers (PP/SBS)
1～2 part of polypropylene (PP) color masterbatch
1～8 part, calcium carbonate.
Described cylinder is to be formed by the wire cross braiding of warp, broadwise setting.
Described diameter 0.6～1.0mm wiry, the distance between adjacent wire is 3～5mm.
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 formed by metal wire knitted as skeleton, therefore can make full use of metal material and modification MPP material advantage separately, thereby comprehensively improve the physical and mechanical property of product, strengthened 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 two-layer co-extrusion 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.
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, the high-tension cable protection that the present embodiment provides is made up of the intermediate layer 1 as skeleton and ectonexine 2 with modified polypropene composite pipe, wherein intermediate layer 1 is to be 0.6mm and along the cylinder forming through the metal wire knitted of, broadwise setting by diameter, distance between adjacent wire is 3mm, and 2 of ectonexines are adopted the mode of co-extrusion to be formed on the interior lateral surface in above-mentioned intermediate layer 1 and made by modified polypropylene material; Described modified polypropylene material is made up of the following component in weight portion:
80 parts of modified polypropene (MPP) resins
8 parts of polypropylene/styrene-butadiene-styrene block copolymers (PP/SBS)
1 part of polypropylene (PP) color masterbatch
2 parts, calcium carbonate.
Preparation method be adopt three machines two-layer co-extrusion MPP tubing special equipment by the above-mentioned modified polypropylene material co-extrusion mixing on the interior lateral surface in intermediate layer 1.
Embodiment 2:
As shown in Figure 1, the high-tension cable protection that the present embodiment provides is made up of the intermediate layer 1 as skeleton and ectonexine 2 with modified polypropene composite pipe, wherein intermediate layer 1 is to be 1.0mm and along the cylinder forming through the metal wire knitted of, broadwise setting by diameter, distance between adjacent wire is 5mm, and 2 of ectonexines are adopted the mode of co-extrusion to be formed on the interior lateral surface in above-mentioned intermediate layer 1 and made by modified polypropylene material; Described modified polypropylene material is made up of the following component in weight portion:
86 parts of modified polypropene (MPP) resins
12 parts of polypropylene/styrene-butadiene-styrene block copolymers (PP/SBS)
2 parts of polypropylene (PP) color masterbatches
8 parts, calcium carbonate.
Preparation method be adopt three machines two-layer co-extrusion MPP tubing special equipment by the above-mentioned modified polypropylene material co-extrusion mixing on the interior lateral surface in intermediate layer 1.
Embodiment 3:
As shown in Figure 1, the high-tension cable protection that the present embodiment provides is made up of the intermediate layer 1 as skeleton and ectonexine 2 with modified polypropene composite pipe, wherein intermediate layer 1 is to be 0.8mm and along the cylinder forming through the metal wire knitted of, broadwise setting by diameter, distance between adjacent wire is 4mm, and 2 of ectonexines are adopted the mode of co-extrusion to be formed on the interior lateral surface in above-mentioned intermediate layer 1 and made by modified polypropylene material; Described modified polypropylene material is made up of the following component in weight portion:
83 parts of modified polypropene (MPP) resins
10 parts of polypropylene/styrene-butadiene-styrene block copolymers (PP/SBS)
1.5 parts of polypropylene (PP) color masterbatches
4 parts, calcium carbonate.
Preparation method be adopt three machines two-layer co-extrusion MPP tubing special equipment by the above-mentioned modified polypropylene material co-extrusion mixing on the interior lateral surface in intermediate layer 1.
Claims (3)
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 (1) and ectonexine (2), wherein intermediate layer (1) is cylinder of being formed by metal wire knitted, and ectonexine (2) is adopted the mode of co-extrusion to be formed on the interior lateral surface in above-mentioned intermediate layer (1) and made by modified polypropylene material; Described modified polypropylene material is made up of the following component in weight portion:
80～86 parts of modified polypropylene resins
8～12 parts of polypropylene/styrene-butadiene-styrene block copolymers
1～2 part, polypropylene colorant material
1～8 part, calcium carbonate.
2. modified polypropene composite pipe is used in high-tension cable protection according to claim 1, it is characterized in that: described cylinder 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 1, it is characterized in that: described diameter 0.6～1.0mm wiry, the distance between adjacent wire is 3～5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410090976.2A CN103840420A (en) | 2014-03-12 | 2014-03-12 | Modified polypropylene composite pipe for protecting high-voltage cables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410090976.2A CN103840420A (en) | 2014-03-12 | 2014-03-12 | Modified polypropylene composite pipe for protecting high-voltage cables |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103840420A true CN103840420A (en) | 2014-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410090976.2A Pending CN103840420A (en) | 2014-03-12 | 2014-03-12 | Modified polypropylene composite pipe for protecting high-voltage cables |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104022479A (en) * | 2014-06-16 | 2014-09-03 | 国家电网公司 | Modified polypropylene composite pipe fitting for high-voltage cable protection |
| CN104086890A (en) * | 2014-07-11 | 2014-10-08 | 安徽宁国市高新管业有限公司 | High flaming retarding MPP power protecting tube |
| CN104151703A (en) * | 2014-08-08 | 2014-11-19 | 嘉兴市金阳塑胶管业有限公司 | MPP (modified polypropylene) electric power tube with high heat resistance |
| CN112436456A (en) * | 2020-11-17 | 2021-03-02 | 江苏格瑞塑胶有限公司 | High and low temperature resistant anti-aging MPP pipe |
| CN112531601A (en) * | 2020-12-22 | 2021-03-19 | 南京特塑复合材料有限公司 | Composite material cable conduit |
Citations (6)
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| CN1344875A (en) * | 2001-10-26 | 2002-04-17 | 甘国工 | Polymer pipe with axially reinforcing steel wire |
| JP2002147430A (en) * | 2000-11-14 | 2002-05-22 | Asahi Intecc Co Ltd | Control cable |
| CN201310690Y (en) * | 2008-12-10 | 2009-09-16 | 十堰市卡特工贸有限公司 | Stainless cable reinforced hydraulic resin pipe |
| CN202149293U (en) * | 2011-07-25 | 2012-02-22 | 宁波康润机械科技有限公司 | Plastic pipe with steel wire reinforcing layer |
| 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 |
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2014
- 2014-03-12 CN CN201410090976.2A patent/CN103840420A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002147430A (en) * | 2000-11-14 | 2002-05-22 | Asahi Intecc Co Ltd | Control cable |
| CN1344875A (en) * | 2001-10-26 | 2002-04-17 | 甘国工 | Polymer pipe with axially reinforcing steel wire |
| CN201310690Y (en) * | 2008-12-10 | 2009-09-16 | 十堰市卡特工贸有限公司 | Stainless cable reinforced hydraulic resin pipe |
| CN202149293U (en) * | 2011-07-25 | 2012-02-22 | 宁波康润机械科技有限公司 | Plastic pipe with steel wire reinforcing layer |
| 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 (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104022479A (en) * | 2014-06-16 | 2014-09-03 | 国家电网公司 | Modified polypropylene composite pipe fitting for high-voltage cable protection |
| CN104086890A (en) * | 2014-07-11 | 2014-10-08 | 安徽宁国市高新管业有限公司 | High flaming retarding MPP power protecting tube |
| CN104086890B (en) * | 2014-07-11 | 2016-08-24 | 安徽宁国市高新管业有限公司 | A kind of high fire-retardance MPP electric power protection pipe |
| CN104151703A (en) * | 2014-08-08 | 2014-11-19 | 嘉兴市金阳塑胶管业有限公司 | MPP (modified polypropylene) electric power tube with high heat resistance |
| CN112436456A (en) * | 2020-11-17 | 2021-03-02 | 江苏格瑞塑胶有限公司 | High and low temperature resistant anti-aging MPP pipe |
| 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: 20140604 |