CN105202308A - Heat shrinkable tape special for mechanized joint coating and preparation method and usage method thereof - Google Patents
Heat shrinkable tape special for mechanized joint coating and preparation method and usage method thereof Download PDFInfo
- Publication number
- CN105202308A CN105202308A CN201510700360.7A CN201510700360A CN105202308A CN 105202308 A CN105202308 A CN 105202308A CN 201510700360 A CN201510700360 A CN 201510700360A CN 105202308 A CN105202308 A CN 105202308A
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- Prior art keywords
- viscoelastic body
- mechanization
- copolymerization
- glue
- repaired mouth
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
- F16L55/1686—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by winding a tape
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses heat shrinkable tape special for mechanized joint coating and a preparation method and usage method thereof. The heat shrinkable tape for mechanized joint coating comprises a heat shrinkable substrate layer, and the upper surface of the heat shrinkable substrate layer is coated with copolymerization hot melt adhesive layers and a viscoelastic body adhesive layer which are both in the shape of a strip; in the length direction of the heat shrinkable substrate layer, the viscoelastic body adhesive layer is arranged between the adjacent copolymerization hot melt adhesive layers, and the two ends of the viscoelastic body adhesive layer make contact with the adjacent copolymerization hot melt adhesive layers respectively; the height of the copolymerization hot melt adhesive layers is the same as that of the viscoelastic body adhesive layer. Compared with a traditional heat shrinkable tape joint coating material, the heat shrinkable tape for mechanized joint coating has the advantages that construction is easy and convenient, base coat is not needed, the mechanization degree is improved, the adhesive strength and the mechanized strength are high, the anti-corrosion effect is good, and maintenance is not needed in the whole life long.
Description
Technical field
The present invention relates to a kind of steel pipeline anti-corrision shrink belt, particularly relate to a kind of mechanization repaired mouth special hot contraction bands and preparation method thereof, using method.
Background technique
At present, the mode that the construction of joint coating on pipeline shrink belt adopts Manual flame to heat mostly, this form of construction work interference from human factor is larger.Chinese patent CN102679086A discloses buried steel pipeline shrink belt heating in medium frequency field joint construction technique, reduces the impact of personal factor on construction quality, substantially increases field joint construction efficiency and quality.But mechanization degree is not also too high, also exists and be coated with priming, the interference of the personal factors such as manual hacking PE layer, manual constriction shrink belt by hand.Again this technique was improved afterwards, and adopting mechanization abrasive blast equipment sandblasting PE anticorrosive coat while sandblasting steel pipe, adopt infrared contract to carry out contraction and the double heating of shrink belt, but the brushing of priming paint still will by manually having come.
At present, domestic shrink belt is all double-layer structure, namely on radiant crosslinked polyethylene base material, is coated with one deck hot melt adhesive, and hot melt adhesive adopts EVA or other family macromolecule materials to be matrix resin mostly, in order to improve the mobility of hot melt adhesive and the bonding force to epoxy primer, usually all tackifying resin can be added.Shrink belt after installation, hot melt adhesive mainly forms physical bonds by tackifying resin and body PE anticorrosive coat, and along with the increase of time, bonding force will decline and final disappearance causes anticorrosion inefficacy.
Summary of the invention
For the technical problem of above-mentioned existence, the object of the invention is: propose a kind of mechanization repaired mouth special hot contraction bands and preparation method thereof, using method, do not need coating prime lacquer, improve mechanization degree, bonding force is large, mechanical strength is high, substantially increase favorable anti-corrosion effect and maintenance-free.
For achieving the above object, the technical solution used in the present invention is: a kind of mechanization repaired mouth special hot contraction bands, comprises thermal shrinkage substrate layer; The upper surface of described thermal shrinkage substrate layer is coated with copolymerization heat-fusing glue layer, viscoelastic body glue-line; Described copolymerization heat-fusing glue layer, viscoelastic body glue-line are respectively in ribbon; On the length direction of thermal shrinkage substrate layer, described viscoelastic body glue-line is arranged between adjacent copolymerization heat-fusing glue layer, and the two ends of described viscoelastic body glue-line contact with adjacent copolymerization heat-fusing glue layer respectively; The height of described copolymerization heat-fusing glue layer, viscoelastic body glue-line is identical.
Preferably, described thermal shrinkage substrate layer is made up of the irradiated crosslinked polyalkene through modification.
Preferably, described copolymerization heat-fusing glue layer is made up of copolymerization hot melt adhesive, and described copolymerization hot melt adhesive is obtained by the raw material of following component and mass percent:
Polyethylene: 60 ~ 80%;
Polyalphaolefin-copolymer: 10 ~ 20%;
Vinyl copolymer-maleic anhydride: 10 ~ 20%;
Look female: 2% ~ 5%;
Antioxidant: 0.2 ~ 0.5%.
Preferably, described viscoelastic body glue-line is made up of viscoelastic body glue, and described viscoelastic body glue is obtained by the raw material of following component and mass percent:
Butyl rubber: 10 ~ 20%;
Polyisobutylene: 40 ~ 60%;
Polyalphaolefin-copolymer: 10 ~ 20%;
Green silicon carbide powder: 20 ~ 40%;
Phthalocyanine green: 2 ~ 5%;
Antioxidant: 0.3 ~ 0.5%;
Substrate wetting agents: 0.1 ~ 0.5%.
The preparation method of above-mentioned mechanization repaired mouth special hot contraction bands, comprises following steps:
1) each component is taken by the recipe requirements of viscoelastic body glue, and evenly mixing in banbury, and banbury temperature arranges 120 ~ 160 DEG C, and 2 ~ 3 hours banburying time, plastic emitting is for subsequent use;
2) by the clay that banburying is good, the Rubber Extruder be delivered to flat slit die tool is extruded;
3) take each component by the recipe requirements of copolymerization hot melt adhesive, and stir in homogenizer, the copolymerization hot melt adhesive mixed is sent into and extrudes with the plastic extruder of two flat slit die tool;
4) by the viscoelastic body glue extruded by the extruder together parallel upper surface being coated in thermal shrinkage substrate layer of heat build-up melten gel, wherein, viscoelastic body glue is coated on the middle part of thermal shrinkage substrate layer, copolymerization hot melt adhesive be coated on shrink belt substrate layer both sides and with the seamless connection of viscoelastic body glue.
The using method of above-mentioned mechanization repaired mouth special hot contraction bands, comprises following steps:
1) weld bond and the process of body PE anticorrosive coat: carry out derusting by sandblasting to Sa2.5 level with mechanization abrasive blast equipment butt welding mouth, sand blast is carried out to the PE anticorrosive coat that will overlap simultaneously, depth of abrasion pattern 50 μm ~ 100 μm;
2) intermediate frequency preheating body: preheating temperature 120 ~ 140 DEG C;
3) mechanization repaired mouth special hot contraction bands is installed: mechanization repaired mouth special hot contraction bands is wrapped in repaired mouth place, post fixed plate, mechanization repaired mouth special hot contraction bands is installed, until mechanization repaired mouth special hot contraction bands is wrapped on body seamless completely by infrared contract;
4) be incubated: after having shunk, infrared machinery arranged 150 ~ 180 DEG C of insulations to the complete melting of hot melt adhesive;
5) bubble removing is caught up with.
Compared with existing shrink belt, the present invention has following beneficial effect: 1, adopt the copolymerization hot melt adhesive not adding tackifier as the adhesive of main pipeline PE anticorrosive coat, under the condition that mechanization is installed, adhesive and main pipeline PE anticorrosive coat form fusion weld, fuse into one with main pipeline PE anticorrosive coat, do not have interface, there will not be adhesive failure in long-time running, sealing corrosion effect is very excellent; 2, adopt viscoelastic body glue as the adhesive in weld bond region, do not trickle without the need to coating prime lacquer, high temperature, favorable anti-corrosion effect; 3, easy for installation, can full-automatic mechanical erection, eliminate jamming factor and non-maintaining throughout one's life.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solution of the present invention is described further:
Accompanying drawing 1 is the schematic diagram of mechanization repaired mouth special hot contraction bands of the present invention;
Wherein: 1, thermal shrinkage substrate layer; 2, copolymerization heat-fusing glue layer; 3, viscoelastic body glue-line.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described.
Be mechanization repaired mouth special hot contraction bands of the present invention as shown in Figure 1, comprise thermal shrinkage substrate layer 1; The upper surface of described thermal shrinkage substrate layer 1 is coated with copolymerization heat-fusing glue layer 2, viscoelastic body glue-line 3; Described copolymerization heat-fusing glue layer 2, viscoelastic body glue-line 3 are respectively in ribbon; On the length direction of thermal shrinkage substrate layer 1, described viscoelastic body glue-line 3 is arranged between adjacent copolymerization heat-fusing glue layer 2, and the two ends of described viscoelastic body glue-line 3 contact with adjacent copolymerization heat-fusing glue layer 2 respectively; The height of described copolymerization heat-fusing glue layer 2, viscoelastic body glue-line 3 is identical; Described thermal shrinkage substrate layer 1 is made up of the irradiated crosslinked polyalkene through modification.
Preferably, described copolymerization heat-fusing glue layer is obtained by the raw material of following component and mass percent:
Polyethylene: 60 ~ 80%;
Polyalphaolefin-copolymer: 10 ~ 20%;
Vinyl copolymer-maleic anhydride: 10 ~ 20%;
Look female: 2% ~ 5%;
Antioxidant: 0.2 ~ 0.5%.
Preferably, described viscoelastic body glue-line is obtained by the raw material of following component and mass percent:
Butyl rubber: 10 ~ 20%;
Polyisobutylene: 40 ~ 60%;
Polyalphaolefin-copolymer: 10 ~ 20%;
Green silicon carbide powder: 20 ~ 40%;
Phthalocyanine green: 2 ~ 5%;
Antioxidant: 0.3 ~ 0.5%;
Substrate wetting agents: 0.1 ~ 0.5%.
In the present embodiment, the preparation method of described mechanization repaired mouth special hot contraction bands, comprises following steps:
1) take butyl rubber 17% by mass percentage, polyisobutylene 45%, polyalphaolefin-copolymer 1 5%, green silicon carbide powder 20%, phthalocyanine green 2.5%, antioxidant 0.2%, substrate wetting agents 0.3% are evenly mixing in banbury, banbury temperature arranges 120 ~ 160 DEG C, 2 ~ 3 hours banburying time, plastic emitting is for subsequent use;
2) by the clay that banburying is good, the Rubber Extruder be delivered to flat slit die tool is extruded;
3) take polyethylene 60% by mass percentage, polyalphaolefin-copolymer 20%, vinyl copolymer-maleic anhydride 17.7%, look mother 2%, antioxidant 0.3% stirs in homogenizer, the plastic extruder sent into two flat slit die tool is extruded;
4) by the viscoelastic body glue extruded by the extruder parallel upper surface being coated in the thermal shrinkage substrate layer 1 be made up of the irradiated crosslinked polyalkene through modification of heat build-up melten gel together, wherein, viscoelastic body glue is coated on the middle part of thermal shrinkage substrate layer 1, copolymerization hot melt adhesive be coated on thermal shrinkage substrate layer 1 both sides and with the seamless connection of viscoelastic body glue, the height of described copolymerization heat-fusing glue layer 2, viscoelastic body glue-line 3 is identical.As shown in Figure 1.
Through the mechanization repaired mouth special hot contraction bands that the preparation method of mechanization repaired mouth special hot contraction bands of the present invention obtains, easy construction simply, does not need coating prime lacquer, improves mechanization degree, bonding force is large, mechanical strength is high, favorable anti-corrosion effect, maintenance-free.Installing 24 hours later test peeling strengths is: shrink belt is to PE320N/cm(23 DEG C) cohesional failure, shrink belt is to steel 45N/cm(23 DEG C) cohesional failure; It is that shrink belt is to PE300N/cm(23 DEG C that 80 DEG C of hot-water soaks test peeling strength in 120 days later) cohesional failure, shrink belt is to steel 42N/cm(23 DEG C) cohesional failure.
The using method of mechanization repaired mouth special hot contraction bands of the present invention, comprises following steps:
1) weld bond and the process of body PE anticorrosive coat: carry out derusting by sandblasting to Sa2.5 level with mechanization abrasive blast equipment butt welding mouth, sand blast is carried out to the PE anticorrosive coat that will overlap simultaneously, depth of abrasion pattern 50 μm ~ 100 μm;
2) intermediate frequency preheating body: preheating temperature 120 ~ 140 DEG C;
3) mechanization repaired mouth special hot contraction bands is installed: mechanization repaired mouth special hot contraction bands is wrapped in repaired mouth place, post fixed plate, mechanization repaired mouth special hot contraction bands is installed, until mechanization repaired mouth special hot contraction bands is wrapped on body seamless completely by infrared contract;
4) be incubated: after having shunk, infrared machinery arranged 150 ~ 180 DEG C of insulations to the complete melting of hot melt adhesive;
5) bubble removing is caught up with.
Compared with existing shrink belt, the present invention has following beneficial effect: 1, adopt the copolymerization hot melt adhesive not adding tackifier as the adhesive of main pipeline PE anticorrosive coat, under the condition that mechanization is installed, adhesive and main pipeline PE anticorrosive coat form fusion weld, fuse into one with main pipeline PE anticorrosive coat, do not have interface, there will not be adhesive failure in long-time running, sealing corrosion effect is very excellent; 2, adopt viscoelastic body glue as the adhesive in weld bond region, do not trickle without the need to coating prime lacquer, high temperature, favorable anti-corrosion effect; 3, easy for installation, can full-automatic mechanical erection, eliminate jamming factor and non-maintaining throughout one's life.
Above-described embodiment is only for illustrating technical conceive of the present invention and feature; its object is to person skilled in the art can be understood content of the present invention and be implemented; can not limit the scope of the invention with this; all equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (6)
1. a mechanization repaired mouth special hot contraction bands, is characterized in that: comprise thermal shrinkage substrate layer; The upper surface of described thermal shrinkage substrate layer is coated with copolymerization heat-fusing glue layer, viscoelastic body glue-line; Described copolymerization heat-fusing glue layer, viscoelastic body glue-line are respectively in ribbon; On the length direction of thermal shrinkage substrate layer, described viscoelastic body glue-line is arranged between adjacent copolymerization heat-fusing glue layer, and the two ends of described viscoelastic body glue-line contact with adjacent copolymerization heat-fusing glue layer respectively; The height of described copolymerization heat-fusing glue layer, viscoelastic body glue-line is identical.
2. mechanization repaired mouth special hot contraction bands according to claim 1, is characterized in that: described thermal shrinkage substrate layer is made up of the irradiated crosslinked polyalkene through modification.
3. mechanization repaired mouth special hot contraction bands according to claim 1 and 2, it is characterized in that: described copolymerization heat-fusing glue layer is made up of copolymerization hot melt adhesive, described copolymerization hot melt adhesive is obtained by the raw material of following component and mass percent:
Polyethylene: 60 ~ 80%;
Polyalphaolefin-copolymer: 10 ~ 20%;
Vinyl copolymer-maleic anhydride: 10 ~ 20%;
Look female: 2% ~ 5%;
Antioxidant: 0.2 ~ 0.5%.
4. mechanization repaired mouth special hot contraction bands according to claim 3, it is characterized in that: described viscoelastic body glue-line is made up of viscoelastic body glue, described viscoelastic body glue is obtained by the raw material of following component and mass percent:
Butyl rubber: 10 ~ 20%;
Polyisobutylene: 40 ~ 60%;
Polyalphaolefin-copolymer: 10 ~ 20%;
Green silicon carbide powder: 20 ~ 40%;
Phthalocyanine green: 2 ~ 5%;
Antioxidant: 0.3 ~ 0.5%;
Substrate wetting agents: 0.1 ~ 0.5%.
5. the preparation method of mechanization repaired mouth special hot contraction bands according to claim 4, comprises following steps:
1) each component is taken by the recipe requirements of viscoelastic body glue, and evenly mixing in banbury, and banbury temperature arranges 120 ~ 160 DEG C, and 2 ~ 3 hours banburying time, plastic emitting is for subsequent use;
2) by the clay that banburying is good, the Rubber Extruder be delivered to flat slit die tool is extruded;
3) take each component by the recipe requirements of copolymerization hot melt adhesive, and stir in homogenizer, the copolymerization hot melt adhesive mixed is sent into and extrudes with the plastic extruder of two flat slit die tool;
4) by the viscoelastic body glue extruded by the extruder together parallel upper surface being coated in thermal shrinkage substrate layer of heat build-up melten gel, wherein, viscoelastic body glue is coated on the middle part of thermal shrinkage substrate layer, copolymerization hot melt adhesive be coated on shrink belt substrate layer both sides and with the seamless connection of viscoelastic body glue.
6. the using method of the mechanization repaired mouth special hot contraction bands according to claim 1 or 2 or 4, comprises following steps:
1) weld bond and the process of body PE anticorrosive coat: carry out derusting by sandblasting to Sa2.5 level with mechanization abrasive blast equipment butt welding mouth, sand blast is carried out to the PE anticorrosive coat that will overlap simultaneously, depth of abrasion pattern 50 μm ~ 100 μm;
2) intermediate frequency preheating body: preheating temperature 120 ~ 140 DEG C;
3) mechanization repaired mouth special hot contraction bands is installed: mechanization repaired mouth special hot contraction bands is wrapped in repaired mouth place, post fixed plate, mechanization repaired mouth special hot contraction bands is installed, until mechanization repaired mouth special hot contraction bands is wrapped on body seamless completely by infrared contract;
4) be incubated: after having shunk, infrared machinery arranged 150 ~ 180 DEG C of insulations to the complete melting of hot melt adhesive;
5) bubble removing is caught up with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510700360.7A CN105202308A (en) | 2015-09-17 | 2015-10-26 | Heat shrinkable tape special for mechanized joint coating and preparation method and usage method thereof |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015105931004 | 2015-09-17 | ||
| CN201510593100 | 2015-09-17 | ||
| CN201510700360.7A CN105202308A (en) | 2015-09-17 | 2015-10-26 | Heat shrinkable tape special for mechanized joint coating and preparation method and usage method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105202308A true CN105202308A (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510700360.7A Pending CN105202308A (en) | 2015-09-17 | 2015-10-26 | Heat shrinkable tape special for mechanized joint coating and preparation method and usage method thereof |
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| CN (1) | CN105202308A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110643293A (en) * | 2019-09-16 | 2020-01-03 | 江苏伊诺尔新材料科技有限公司 | Special hot melt adhesive tape for electronic chip packaging |
| CN112760060A (en) * | 2021-01-20 | 2021-05-07 | 苏州赛伍应用技术股份有限公司 | Viscoelastic body anticorrosive adhesive, adhesive tape and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1754932A (en) * | 2004-09-30 | 2006-04-05 | 赵璐 | Polymer adhesive resin for corrosion-prevention of steel pipe and preparation process thereof |
| CN101709821A (en) * | 2009-12-09 | 2010-05-19 | 北京北科双元涂料科技有限公司 | Method for joint coating on pipeline by heat-shrinkable tape |
| CN101935500A (en) * | 2010-08-27 | 2011-01-05 | 深圳市长园长通新材料有限公司 | Anticorrosive viscoelastic body rubber belt and preparation method thereof |
| CN203715556U (en) * | 2014-02-13 | 2014-07-16 | 江苏宝力泰新材料科技有限公司 | Heat contraction band comprising viscoelastic adhesive and hot melt adhesive |
| CN203715557U (en) * | 2014-02-13 | 2014-07-16 | 江苏宝力泰新材料科技有限公司 | Heat shrinking tape comprising viscoelastic rubber and pressure-sensitive adhesive |
-
2015
- 2015-10-26 CN CN201510700360.7A patent/CN105202308A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1754932A (en) * | 2004-09-30 | 2006-04-05 | 赵璐 | Polymer adhesive resin for corrosion-prevention of steel pipe and preparation process thereof |
| CN101709821A (en) * | 2009-12-09 | 2010-05-19 | 北京北科双元涂料科技有限公司 | Method for joint coating on pipeline by heat-shrinkable tape |
| CN101935500A (en) * | 2010-08-27 | 2011-01-05 | 深圳市长园长通新材料有限公司 | Anticorrosive viscoelastic body rubber belt and preparation method thereof |
| CN203715556U (en) * | 2014-02-13 | 2014-07-16 | 江苏宝力泰新材料科技有限公司 | Heat contraction band comprising viscoelastic adhesive and hot melt adhesive |
| CN203715557U (en) * | 2014-02-13 | 2014-07-16 | 江苏宝力泰新材料科技有限公司 | Heat shrinking tape comprising viscoelastic rubber and pressure-sensitive adhesive |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110643293A (en) * | 2019-09-16 | 2020-01-03 | 江苏伊诺尔新材料科技有限公司 | Special hot melt adhesive tape for electronic chip packaging |
| CN112760060A (en) * | 2021-01-20 | 2021-05-07 | 苏州赛伍应用技术股份有限公司 | Viscoelastic body anticorrosive adhesive, adhesive tape and preparation method thereof |
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