CN104099053A - Solidifiable adhesive tape used for pipeline leakage repairing and cable repairing and protection - Google Patents
Solidifiable adhesive tape used for pipeline leakage repairing and cable repairing and protection Download PDFInfo
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- CN104099053A CN104099053A CN201310122590.0A CN201310122590A CN104099053A CN 104099053 A CN104099053 A CN 104099053A CN 201310122590 A CN201310122590 A CN 201310122590A CN 104099053 A CN104099053 A CN 104099053A
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- adhesive tape
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Abstract
The invention relates to a solidifiable adhesive tape used for pipeline leakage repairing and cable repairing and protection, the solidifiable adhesive tape is prepared by coating glass fiber cloth with a layer of a flame retardant polyurethane prepolymer mixture and then packaging under vacuum, and to be more specific, a flame retardant agent and a polyhydroxy compound are mixed, polyisocyanate and the polyhydroxy compound are polymerized under the protection of an inert gas to obtain a terminal-NCO prepolymer, a catalyst is added into the terminal-NCO prepolymer, and the alkali free or low alkali glass fiber cloth is coated with the terminal-NCO prepolymer, then coiled, vacuumed and packed to obtain a finished product. When in use, the packing is opened and externally winds a cable or a pipeline, and by reaction of the polyurethane prepolymer and moisture in the air, a non-molten non-fused elastic protective layer is obtained by rapid solidification. The solidifiable adhesive tape is stable and consistent in properties, and can achieve the best insulation, flame retardant, waterproof and leakage proof, and anti collision effects.
Description
Technical field
The present invention relates to a kind of blocking Leakage and cable repairing and protective articles; relate in particular to a kind of curable adhesive tape for blocking Leakage and cable repairing and protection; its can be in mine for maintenance and the emergency repair of pipeline, cable, cable splice; in power cable, protect for the armouring protection of joint area, repairing and the outer of cable intermediate joint of power cable sheath; quick leakproof for various pipes pipeline is repaired, and can be used for the armored protective layer of pipeline.
Background technology
In mining machinery, often easily cause the breakage of cable because of friction, particularly on coal mining activity face, drag especially easily breakage of cable, if stop production to overhaul can cause larger financial loss.In all kinds of industrial and mining enterprises, the material of all kinds of water-through and ventilating steel pipes and manufacture factor cause corrosion and the cracking of pipeline.As S, P easily corrode, C, Si easily cause brittle cracking; Crystallite fineness grade is low, and crackle, along grain propagation, easily ftractures; In steel pipe manufacturing processed, surface exists defect as cut, pit, fine fisssure etc., also easily causes corrosion cracking.When pipe operations operation, transfer pressure and pressure surge are the another important factors of stress corrosion crack.Too high pressure makes tube wall produce excessive service stress, easily makes etching crack expansion, and pressure cycling fluctuation also easily makes crack propagation.
The anticorrosion coating that countries in the world steel pipe uses at present mainly contains petroleum pitch, coal tar enamel, extruded polyethylene, PE adhesive tape, fusion bonded epoxy resin (FBE) and composite coating (containing three layers of PE).Petroleum pitch is to use the longest historical protective system, a kind of economic and practical anticorrosion coating if corrosive environment, without microorganism, without deep rooting plant, so still be can yet be regarded as, certainly its trickling sexual incompatibility hot environment.Coal tar enamel is also time-honored protective system, and it has overcome the defect of petroleum pitch, but the cold short use range that has but limited it under lower temperature environments, and also its anti-extraneous mechanical force strength at break is not high, and cubic meter of stone mountain area should not be used.Fusion bonded epoxy resin is protective system the highest with strong, the most anti-best, the anti-mechanical shock of various environmental corrosions of steel pipe cohesive force in all protective systems, thereby in the investigation of Canadian pipe stress corrosion cracking corrosion-free cracking case, but due to overlay thin (less than 1mm), the impact of anti-sharp objects is poor, will be cautious use of in cubic meter of stone location.For overcoming above-mentioned shortcoming, develop three layers of PE structure, this is that a kind of antikathode by epoxy resin is peeled off the composite structure that cohesiveness combines with poly resistance to impact shock.But the not yet often inspection of phase use of poly ageing-resistant performance and resisting environmental stress and cracking, once polyethylene outer cover is aging or Cracking Failure, the epoxy resin that internal layer is very thin is just difficult to the preservative activity that reaches equivalent, add price higher, therefore it is only suitable for adopting under special circumstances.
In order to overcome aforementioned technical problem, the application's applicant has proposed a Chinese invention patent application (publication number is CN101338167A) before, it discloses a kind of curable adhesive tape for blocking Leakage and cable repairing and protection, and this curable adhesive tape has excellent insulation, fire-retardant, waterproof leakproof, collision protection effect.
But, in aforementioned Chinese invention patent application, applicant's discovery of the application is very large to the performance impact of curable adhesive tape for the preparation of temperature of reaction and the reaction times of the flame retardant polyurethane performed polymer mixture of curable adhesive tape, under normal conditions, rely on operator's experience to judge temperature of reaction and reaction times completely, cause the unstable properties of the curable adhesive tape of producing, and can not reach optimum performance.
When the application's applicant passes through the several years, finally solve this technical problem by a large amount of many times tests, and proposed the application.
Summary of the invention
The object of this invention is to provide a kind of curable adhesive tape for blocking Leakage and cable repairing and protection, when use, this adhesive tape is wrapped in to cable or pipeline outer-layer and forms the flexible protective layer with excellent insulation, fire-retardant, waterproof leakproof, collision protection.
For a curable adhesive tape for blocking Leakage and cable repairing and protection, this adhesive tape is on glasscloth, to apply one deck flame retardant polyurethane performed polymer mixture final vacuum to pack and obtain.
The preparation process of described flame retardant polyurethane performed polymer mixture is as follows:
(a) fire retardant is dried 30～120 minutes at 100～160 DEG C;
(b) by polyol 50～200 weight parts, fire retardant 40～100 weight parts, retardant 0.1～0.5 weight part adds in reactor, stirs 10～120 minutes at 50～150 DEG C, is then cooled to room temperature;
(c) in said mixture, add after 30～80 weight part isocyanic ester, vacuumize, after vacuum tightness is 0.05～0.095Mpa, pass into dry rare gas element, rare gas element can be nitrogen, argon gas or its mixed gas, stirs 15～60 minutes;
(d) be heated to T1 DEG C, continue reaction S1 minute, wherein 50 DEG C≤T1 DEG C≤60 DEG C;
(e) be warming up to T2 DEG C, continue reaction S2 minute, wherein T1 DEG C+10 DEG C≤T2 DEG C≤80 DEG C;
(f) be cooled to after 20～50 DEG C, add catalyzer, continue to stir 15～120 minutes,
Wherein,
S1 and T1 meet formula: S1=31500/T1-510; And
S2 and T2 meet formula: S2=21600/T2-240.
The functionality of described polyisocyanates is more than 2 or 2, comprises tolylene diisocyanate, hexamethylene diisocyanate, 4,4-ditan-4, one or more in 4-vulcabond, isophorone diisocyanate, polymethine polyphenyl polyisocyanate.Polyol is one or more in graft compound, the Viscotrol C of polyester polyol, polyether glycol and the hydrocarbon compound that includes hydroxyl, hydroxyl, and molecular weight is 100～3000.
Described glasscloth is alkali-free glass fiber cloth or low alkali glass fiber cloth.
The width of described glasscloth is 10mm～200mm.
The thickness of described glasscloth is 0.1～1.5mm.
Described fire retardant is one or more in decabromodiphenyl oxide, ten bromine dichloro hexanes, ammonium polyphosphate, aluminium hydroxide, magnesium hydroxide, red phosphorus.
Described catalyzer is one or more in dibutyl tin laurate, stannous octoate, diethylenetriamine, triethylene tetramine, cobalt naphthenate, zinc naphthenate, naphthenic acid rare earth.
Described retardant is one or more of Benzoyl chloride, tartrate, phosphoric acid.
When use, curable adhesive tape is wrapped in outside cable or pipeline, is solidified rapidly and is not melted the elastic protective layer not melting by base polyurethane prepolymer for use as and airborne reaction of moisture, has excellent insulation, fire-retardant, waterproof leakproof, collision protection effect.
Beneficial effect of the present invention: by set up most suitable relation in temperature of reaction with between the reaction times, make the stable performance, consistent of the curable adhesive tape of producing, and the performance of the curable adhesive tape of output can reach best.
With only utilize micro-judgment temperature of reaction and the prior art in reaction times and compare, the present invention can make the overall performance of curable adhesive tape on average improve more than at least 50%, and maximum difference between the performance of the curable adhesive tape of all batches of producing is less than 0.05%.And in the prior art, the maximum difference between the performance of the curable adhesive tape of each batch of producing reaches as high as 50%.Thereby compared with prior art, the present invention has obtained significant technique effect.
Embodiment
In order to illustrate in greater detail the present invention, describe below in conjunction with specific embodiment:
The curable adhesive tape for blocking Leakage and cable repairing and protection described in the present embodiment is to utilize fire retardant to mix with polyol; then under the protection of rare gas element, make polyisocyanates and polyol polymerization and obtain end-NCO performed polymer; after adding and being coated on alkali-free or low alkali glass fiber cloth after catalyzer; batch, vacuum packaging and finished product.When use, packaging is opened, be wrapped in outside cable or pipeline, by base polyurethane prepolymer for use as and airborne reaction of moisture, solidify and obtain the insoluble elastic protective layer not melting rapidly.
The preparation of described flame retardant polyurethane performed polymer can realize by following steps:
A) by polyol, as polyethers N210 50～200 weight parts with through 100～200 DEG C of Decabromodiphenyl Ether 30～100 weight parts, antimonous oxide 0～40 weight parts of drying for 30～120 minutes, Benzoyl chloride 0.1～0.5 weight part adds in reactor, stir, and be warmed up to 50～150 DEG C, be incubated 10～120 minutes, be then cooled to room temperature;
B) in said mixture, add after 30～80 parts by weight of toluene vulcabond, vacuumize, after vacuum tightness is 0.05～0.095Mpa, pass into dry nitrogen, stir 15～60 minutes;
C) continue stir and be heated to after T1 DEG C, react S1 minute, wherein 50 DEG C≤T1 DEG C≤60 DEG C;
D) continue to stir, and be warming up to T2 DEG C, continue reaction S2 minute, wherein T1 DEG C+10 DEG C≤T2 DEG C≤80 DEG C;
E) continue stirs and is cooled to after 20～50 DEG C, add stannous octoate 3～10 weight parts, then continue stirring 15～120 minutes after blowing for subsequent use;
F) base polyurethane prepolymer for use as of preparing is put into the bucket of sealing, and is filled with dry nitrogen protection,
Wherein, S1 and T1 meet formula: S1=31500/T1-510; And
S2 and T2 meet formula: S2=21600/T2-240.
The preparation of described flame retardant polyurethane performed polymer can also realize by following steps:
A) by polyol, as polyethers N20450～200 weight part with through 100～200 DEG C, fire retardant ten bromine dichloro hexane 30～100 weight parts, antimonous oxide 0～40 weight part of within 30～120 minutes, drying, phosphoric acid 0.1～0.5 weight part adds in reactor, stir, and be warmed up to 50～150 DEG C, be incubated 10～120 minutes.Then be cooled to room temperature;
B) in said mixture, add after 30～80 parts by weight of toluene vulcabond, vacuumize, after vacuum tightness is 0.05～0.095Mpa, add dry argon gas, stir 15～60 minutes;
C) continue stir and be heated to after 50～60 DEG C, react 15～120 minutes;
D) continue to stir, and be warming up to 60～80 DEG C, continue reaction 30～120 minutes;
E) continue stirs and is cooled to after 20～50 DEG C, add stannous octoate 3～10 weight parts, cobalt naphthenate 0～5 weight part, continue stirring 15～120 minutes after blowing for subsequent use;
F) base polyurethane prepolymer for use as of preparing is put into the bucket of sealing, and is filled with dry nitrogen protection.
Claims (7)
1. the curable adhesive tape for blocking Leakage and cable repairing and protection, it is characterized in that: this curable adhesive tape is on glasscloth, to apply one deck flame retardant polyurethane performed polymer mixture final vacuum to pack and make, and the preparation process of described flame retardant polyurethane performed polymer mixture is as follows:
(a) fire retardant is dried 30～120 minutes at 100～160 DEG C;
(b) by polyol 50～200 weight parts, fire retardant 40～100 weight parts, retardant 0.1～0.5 weight part adds in reactor, stirs 10～120 minutes at 50～150 DEG C, is then cooled to room temperature;
(c) in said mixture, add after 30～80 weight part isocyanic ester, vacuumize, after vacuum tightness is 0.05～0.095Mpa, pass into dry rare gas element, rare gas element can be nitrogen, argon gas or its mixed gas, stirs 15～60 minutes;
(d) be heated to T1 DEG C, continue reaction S1 minute, wherein 50 DEG C≤T1 DEG C≤60 DEG C;
(e) be warming up to T2 DEG C, continue reaction S2 minute, wherein T1 DEG C+10 DEG C≤T2 DEG C≤80 DEG C;
(f) be cooled to after 20～50 DEG C, add catalyzer, continue to stir 15～120 minutes,
It is characterized in that,
S1 and T1 meet formula: S1=31500/T1-510; And
S2 and T2 meet formula: S2=21600/T2-240.
2. the curable adhesive tape for blocking Leakage and cable repairing and protection according to claim 1, is characterized in that: described glasscloth is alkali-free glass fiber cloth or low alkali glass fiber cloth; The width of described glasscloth is 10～200mm, and thickness is 0.1～1.5mm.
3. the curable adhesive tape for blocking Leakage and cable repairing and protection according to claim 1 and 2, it is characterized in that: the functionality of described polyisocyanates is more than 2 or 2, comprise tolylene diisocyanate, hexamethylene diisocyanate, 4,4-ditan-4, one or more in 4-vulcabond, isophorone diisocyanate, polymethine polyphenyl polyisocyanate.
4. the curable adhesive tape for blocking Leakage and cable repairing and protection according to claim 1 and 2, it is characterized in that: described polyol is polyester polyol, polyether glycol, and include the hydrocarbon compound of hydroxyl, the graft compound of hydroxyl, one or more in Viscotrol C, molecular weight is 100～3000.
5. the curable adhesive tape for blocking Leakage and cable repairing and protection according to claim 1 and 2, is characterized in that: described fire retardant is one or more in decabromodiphenyl oxide, ten bromine dichloro hexanes, ammonium polyphosphate, aluminium hydroxide, magnesium hydroxide, red phosphorus.
6. the curable adhesive tape for blocking Leakage and cable repairing and protection according to claim 1 and 2, is characterized in that: described catalyzer is one or more in dibutyl tin laurate, stannous octoate, diethylenetriamine, triethylene tetramine, cobalt naphthenate, zinc naphthenate, naphthenic acid rare earth.
7. the curable adhesive tape for blocking Leakage and cable repairing and protection according to claim 1 and 2, is characterized in that: described retardant is one or more of Benzoyl chloride, tartrate, phosphoric acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310122590.0A CN104099053A (en) | 2013-04-10 | 2013-04-10 | Solidifiable adhesive tape used for pipeline leakage repairing and cable repairing and protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310122590.0A CN104099053A (en) | 2013-04-10 | 2013-04-10 | Solidifiable adhesive tape used for pipeline leakage repairing and cable repairing and protection |
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| Publication Number | Publication Date |
|---|---|
| CN104099053A true CN104099053A (en) | 2014-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310122590.0A Pending CN104099053A (en) | 2013-04-10 | 2013-04-10 | Solidifiable adhesive tape used for pipeline leakage repairing and cable repairing and protection |
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| CN (1) | CN104099053A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105542701A (en) * | 2016-02-01 | 2016-05-04 | 苏州哈恩新材料有限公司 | Novel polyurethane glue and preparation method thereof |
| CN105601867A (en) * | 2016-01-28 | 2016-05-25 | 管杰 | Polyurethane rubber preparation process |
| CN105860914A (en) * | 2016-04-26 | 2016-08-17 | 王金武 | Repair adhesive tape used for cables and preparation method thereof |
| CN106519640A (en) * | 2016-11-11 | 2017-03-22 | 贵州电网有限责任公司贵阳供电局 | Live-working leak repairing chemical for power cables and use method thereof |
| CN111826099A (en) * | 2020-07-30 | 2020-10-27 | 范文芳 | Glass fiber adhesive tape and preparation method thereof |
| CN114413184A (en) * | 2021-12-31 | 2022-04-29 | 北京无线电计量测试研究所 | Intelligent pipeline, intelligent pipeline management system and leakage detection method thereof |
| WO2024016110A1 (en) * | 2022-07-18 | 2024-01-25 | 3M创新有限公司 | Flame-retardant wrapping sheet and flame-retardant wrapping package |
Citations (3)
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|---|---|---|---|---|
| US6726971B1 (en) * | 1999-12-13 | 2004-04-27 | Tyco Adhesives Lp | Thermally stable clear polyurethane adhesive tape |
| CN101338167A (en) * | 2007-08-13 | 2009-01-07 | 张一平 | Curable adhesive tape for blocking Leakage, and repairing and protecting cable |
| CN102532469A (en) * | 2011-12-28 | 2012-07-04 | 南京双威生物医学科技有限公司 | Graphite composite modified fire-retardant anti-static polyurethane and adhesive plaster |
-
2013
- 2013-04-10 CN CN201310122590.0A patent/CN104099053A/en active Pending
Patent Citations (3)
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|---|---|---|---|---|
| US6726971B1 (en) * | 1999-12-13 | 2004-04-27 | Tyco Adhesives Lp | Thermally stable clear polyurethane adhesive tape |
| CN101338167A (en) * | 2007-08-13 | 2009-01-07 | 张一平 | Curable adhesive tape for blocking Leakage, and repairing and protecting cable |
| CN102532469A (en) * | 2011-12-28 | 2012-07-04 | 南京双威生物医学科技有限公司 | Graphite composite modified fire-retardant anti-static polyurethane and adhesive plaster |
Non-Patent Citations (1)
| Title |
|---|
| 丛树枫等: "《聚氨酯涂料》", 30 September 2003, article "温度及溶剂对反应速率的影响", pages: 79 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105601867A (en) * | 2016-01-28 | 2016-05-25 | 管杰 | Polyurethane rubber preparation process |
| CN105542701A (en) * | 2016-02-01 | 2016-05-04 | 苏州哈恩新材料有限公司 | Novel polyurethane glue and preparation method thereof |
| CN105860914A (en) * | 2016-04-26 | 2016-08-17 | 王金武 | Repair adhesive tape used for cables and preparation method thereof |
| CN106519640A (en) * | 2016-11-11 | 2017-03-22 | 贵州电网有限责任公司贵阳供电局 | Live-working leak repairing chemical for power cables and use method thereof |
| CN111826099A (en) * | 2020-07-30 | 2020-10-27 | 范文芳 | Glass fiber adhesive tape and preparation method thereof |
| CN114413184A (en) * | 2021-12-31 | 2022-04-29 | 北京无线电计量测试研究所 | Intelligent pipeline, intelligent pipeline management system and leakage detection method thereof |
| CN114413184B (en) * | 2021-12-31 | 2024-01-02 | 北京无线电计量测试研究所 | Intelligent pipeline, intelligent pipeline management system and leak detection method thereof |
| WO2024016110A1 (en) * | 2022-07-18 | 2024-01-25 | 3M创新有限公司 | Flame-retardant wrapping sheet and flame-retardant wrapping package |
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Application publication date: 20141015 |