CN1058035A - A kind of leakage-stopping anticorrosion adhesive tape - Google Patents
A kind of leakage-stopping anticorrosion adhesive tape Download PDFInfo
- Publication number
- CN1058035A CN1058035A CN 90105170 CN90105170A CN1058035A CN 1058035 A CN1058035 A CN 1058035A CN 90105170 CN90105170 CN 90105170 CN 90105170 A CN90105170 A CN 90105170A CN 1058035 A CN1058035 A CN 1058035A
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- adhesive tape
- curing catalysts
- aging agent
- stopping
- leakage
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Abstract
A kind of leakage-stopping anticorrosion adhesive tape that contains polyurethane adhesive is by multi-hydroxy polyether and di-isocyanate reaction and make.This adhesive tape can be used for leak stopping and the anticorrosion use that materials such as various water, oil, gas media and various metal, plastics, rubber are made pipeline.During use, only need it is immersed in water after the immersion, be wound into leak, 30～40 minutes just curable, and its operating process is simple, convenient, be a kind of widely used type material rapidly.
Description
The present invention relates to a kind of tackiness agent, specifically a kind of urethane that contains is used for the type material of blocking anti-corrosion.
Recently to various pipelines, for example developed a kind of novel poly-propylhomoserin tackiness agent novel material that contains in the fast blockage of a large amount of water, oil, gas body pipelines of uses such as refinery, chemical plant, system paper plant, waterworks, food processing plant and the rotproofing, using this material repairs burst pipe, operation is very simple, rapid, convenient, and suitable various material pipelines adopt.
The purpose of this invention is to provide a kind of leak-stopping anticorrosion adhesive tape and preparation technology thereof who contains the poly-propylhomoserin tackiness agent of single-component.This leakage-stopping anticorrosion adhesive tape is used for pipe plugging processing, reliable, simple to operate rapidly, and it has extensive applicability.
Adhesive tape of the present invention is that the poly-propylhomoserin tackiness agent of a kind of single-component is coated on the straps such as glass fibre, chemical fibre dimension equably, and preserve in pack into aluminium foil or the nylon plastic sealing bag, it is characterized in that in urethane, containing curing catalysts and anti-aging agent as main component, said curing catalysts can be used tertiary amine (as triethylene diamine), bases (as sodium hydroxide or sodium alkylate) and organic tin salt (as stannous octoate, dibutyl tin laurate); Anti-aging agent can be with the weight percent of arylamine class, thiocarbamide or phenol, interpolation: curing catalysts 0.05～0.5%; Anti-aging agent 0.1～0.5%.
The preparation process of adhesive tape of the present invention is at first synthetic poly-propylhomoserin tackiness agent, adds anti-aging agent and curing catalysts then and stirs and be coated onto on glass fibre or the chemical fibre dimension strap again, makes leakage-stopping anticorrosion adhesive tape in pack into immediately aluminium foil or the nylon plastic seal strip.The synthetic of its poly-propylhomoserin is to press step:
1, polyether diols and the weighing according to a certain ratio of trihydroxy-polyethers are placed in the reactor, heating finds time to dewater, and minor amount of water purifies substantially in reactant, and its preferred heated temperature is 90～110 ℃.
2, with certain proportion tolylene diisocyanate (TDI) and 4,4 '-diphenylmethanediisocyanate (MDI) mixed solution adds, heated and stirred makes abundant reaction, its preferable Heating temperature is 100～120 ℃.Add anti-aging agent when being cooled to about 60 ℃ after the reaction, the anti-aging agent add-on is a total reactant weight 0.1～0.5%.
3, in above-mentioned sizing material, add 0.05～0.5%(weight) curing catalysts, blade coating is on glass fibre or fiber strap equably after stirring evenly, Amount of spread is with 0.03～0.06g/cm
2Be advisable, get product of the present invention in then adhesive tape is packed into rapidly aluminium foil or the nylon plastic sealing bag.
In above-mentioned reaction process, requirement determines used reactant ratio according to desired properties, can be by the trihydroxy-polyethers: dihydroxyl gathers reactant=1～4: 1 weight ratio is selected, and MKI in the vulcabond: TDI can be by 2～6: 1 weight ratio adds.
In addition for guaranteeing belt performance, the polyurethane adhesive blade coating is preferably in the preparation process of strap in the air ambient of relative temperature＜10% and carries out.Below by example in detail preparation process of the present invention.
The preparation of example 1 leakage-stopping anticorrosion adhesive tape
The poly-reactant of trihydroxy-polyethers and dihydroxyl taken by weighing in 3: 1 ratios place reactor, be heated to about 100 ℃, find time to carry out in 1 hour processed; Then in MKI: TDI=4: 1 ratio takes by weighing diisocyanate cpd (polyhydroxy polycarboxylic reactant and two isocyanide phenolic esters take by weighing by 1: 1～2 weight ratios), add in the reactor, be warmed up to 110 ℃ of reactions 2.5 hours, be cooled to 60 ℃ and stir evenly discharging after adding 0.1% Resorcinol.In the air ambient of relative temperature＜10%, with curing catalysts, two bay phenol dibutyl tins are by 0.1%(weight) blade coating is to glass fiber tape equably again after stirring evenly in the sizing material in the adding, and Amount of spread is pressed 0.05g/cm
2, will make adhesive tape and pack into and obtain product in the foil sealing bag.
When using adhesive tape of the present invention to carry out leak stopping, only need adhesive tape is taken out, immerse in the water after, be wound into the leak of pipeline, just can solidify, and reach the purpose of leak stopping in 30～40 minutes.Utilize this material leak stopping and anticorrosion operation very simple, convenient; It can be suitable for using in various material pipelines such as any metal, plastics, rubber and timber and the various medium pipelines of water, oil, gas.
Claims (3)
1, a kind of leakage-stopping anticorrosion adhesive tape that contains polyurethane adhesive, it is characterized in that containing in its tackiness agent curing catalysts and anti-aging agent, said curing catalysts can be used tertiary amine (as triethylene diamine), bases (as sodium hydroxide or sodium alkylate) and organic tin salt (as stannous octoate, dibutyl tin laurate); Anti-aging agent can be used the arylamine class, thiocarbamide or phenol; The weight percent that adds is: curing catalysts 0.05～0.5%;
Anti-aging agent 0.1～0.5%.
2, a kind of preparation method according to the described adhesive tape of claim 1 is characterized in that the synthetic step of pressing of urethane:
(1) a certain amount of polyether diols and trihydroxy-polyethers mixing post-heating are found time dewater;
(2) with certain proportion tolylene diisocyanate and 4,4 '-diphenylmethane diisocyanate adds in (1), heating is reacted the back and is added anti-aging agent and stir evenly;
(3) after a certain amount of curing catalysts of adding stirs evenly in above-mentioned sizing material the even blade coating of sizing material is tieed up on the strap to glass fibre or chemical fibre, kept in then the adhesive tape that makes is packed into aluminium foil or the nylon plastic sealing bag.
3,, it is characterized in that reactant trihydroxy-polyethers in the reaction process: polyether diols=1～4: 1 weight ratio according to the preparation method of the described adhesive tape of claim 2; The weight ratio of MDI: TDI=2～6: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90105170 CN1058035A (en) | 1990-07-10 | 1990-07-10 | A kind of leakage-stopping anticorrosion adhesive tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90105170 CN1058035A (en) | 1990-07-10 | 1990-07-10 | A kind of leakage-stopping anticorrosion adhesive tape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1058035A true CN1058035A (en) | 1992-01-22 |
Family
ID=4879002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90105170 Pending CN1058035A (en) | 1990-07-10 | 1990-07-10 | A kind of leakage-stopping anticorrosion adhesive tape |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1058035A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878384A (en) * | 2012-10-23 | 2013-01-16 | 中煤科工集团重庆研究院 | Quick leaking stoppage method for flange coupling portions of gas extraction pipelines and device used with quick leaking stoppage method |
| CN103305154A (en) * | 2013-07-15 | 2013-09-18 | 张家港康得新光电材料有限公司 | High-temperature-resisting pressure-sensitive adhesive for adhesive tape, adhesive tape and preparation process |
-
1990
- 1990-07-10 CN CN 90105170 patent/CN1058035A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878384A (en) * | 2012-10-23 | 2013-01-16 | 中煤科工集团重庆研究院 | Quick leaking stoppage method for flange coupling portions of gas extraction pipelines and device used with quick leaking stoppage method |
| CN102878384B (en) * | 2012-10-23 | 2015-05-06 | 中煤科工集团重庆研究院有限公司 | Quick leaking stoppage method for flange coupling portions of gas extraction pipelines and device used with quick leaking stoppage method |
| CN103305154A (en) * | 2013-07-15 | 2013-09-18 | 张家港康得新光电材料有限公司 | High-temperature-resisting pressure-sensitive adhesive for adhesive tape, adhesive tape and preparation process |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |