CN1226349C - Expanding liquid rubber - Google Patents
Expanding liquid rubber Download PDFInfo
- Publication number
- CN1226349C CN1226349C CN 03129772 CN03129772A CN1226349C CN 1226349 C CN1226349 C CN 1226349C CN 03129772 CN03129772 CN 03129772 CN 03129772 A CN03129772 A CN 03129772A CN 1226349 C CN1226349 C CN 1226349C
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- component
- pop
- tdi
- rubber
- gaps
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- Expired - Fee Related
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Abstract
The present invention provides expanding liquid rubber. First, 50 to 85% of POP, 1 to 40% of TDI and 2 to 40% of butyl rubber are added in a reaction kettle, are heated up to 60 to 90 DEG C under normal pressure and are stirred. After reacting for 1 to 3 hours, a reaction material of the POP, the TDI and the butyl rubber is cooled and held, and after packed, the reaction material is used as a component (A) for standby. After stirred and mixed, 50 to 85% of POP, 2 to 30% of filling materials, 5 to 30% of cross-linking agents, 1 to 15% of pigment and 1 to 25% of plasticizers are ground below 40 microns. The ground mixture is used as a component (B) and is packed for standby. The component (A) and the component (B) are mixed and stirred evenly according to a weight ratio of 2 to 1, and are filled into gaps of leakage points. The present invention has the advantages of simple production process, easy operation, no three-waste exhaust during the process of the production, electric heating, no boiler pollution problem, reaction under normal pressure, safety and reliability. The expanding liquid rubber can be used for structural gaps, contraction gaps, construction gaps, etc. of various underground structures, tunnels and dam bodies, and can effectively reach the requirements of waterproof design. Thus, the present invention can surely bring enormous social effects and economic effects.
Description
Technical field
The invention relates to rubber, particularly be a kind of liquid expanded rubber.
Background technology
From the vault of current Highrise buildings, the service condition in tunnel, 95% exists the seepage phenomenon, all expends great amount of manpower and material resources every year, brings great inconvenience to the owner, and existing injection material far can not satisfy demands of social development on the market.
Used water blockoff, injection material on the construction market mainly is that water-soluble poly ammoniacum, hydrogen coagulate at present.The liquid injection material that these two kinds of materials all are water-swellables is effective as a kind of urgent grouting, water blockoff in the engineering use.These two kinds of materials are met water and can be expanded rapidly, can reach the sealing plugging effect.But the foam after this material expands is spongy, its mechanical property, and anti-shear performance is relatively poor, can not satisfy the design requirements of building structure.In addition, this material can not long-term competent waterproof, water blockoff, may cause the generation of leaking once more when secondary destroys water.The situation of shutoff repeatedly occurs leaking repeatedly; Its principle is that the foam of these two kinds of materials when not having water all has the drying shrinkage phenomenon, and the part just the seepage phenomenon may occur when coming water once more.
Summary of the invention
Technical problem to be solved by this invention is, provide a kind of efficiently, permanent sealing injection material.Have certain snappiness, its intensity, tension, anti-shear performance all are better than rubber fastening band, simultaneously in the solidification process can with water-bearing concreae basal plane bonding, also can with multiple material secure bond, can satisfy the design requirements of building structure.In addition, have water-swellable and under anhydrous situation, restore to the original state the property of re-expanding when meeting water, the seepage phenomenon that solution vault, tunnel etc. exist.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: main raw material comprises: POP is that polyether glycol and TDI are tolylene diisocyanate, at first with POP 50-85% and TDI 1-40% and isoprene-isobutylene rubber 2-40% adding reactor, under normal pressure, intensification 60-90 degree centigrade, stir, react cooling in 1-3 hour and park, the packing back is stand-by as the first component; After POP 50-85% and filler 2-40%, linking agent 5-30%, pigment 1-15%, softening agent 1-25% mixed, be ground to fineness below 40 microns, as second component packed for standby use; With first component and second component 2 to 1 mixing and stirring by weight, be poured in the slit of leakage and get final product.
Filler adopts pressed powders such as light calcium carbonate, talcum powder, white carbon black; Linking agent adopts the diamino dichloro diphenyl methane.Pigment adopts inorganic or pigment dyestuff; Softening agent is butyl phthalate or octyl phthalate.
The invention has the beneficial effects as follows: this product processes is simple, and is easy to operate, and three-waste free discharge in the production process adopts electrically heated, does not have the boiler pollution problem, and synthesis under normal pressure does not have pressurized vessel, and perfect safety regulation for operations is arranged.This material can be used for positions such as the structural joint, expansion joint, construction joint of various underground structures, tunnel, dam body, can effectively reach the waterproofing design requirement.So the release of liquid expanded rubber will cause huge social effect and economic benefit.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail: percentage ratio is with POP 50-85% and TDI 1-40% and isoprene-isobutylene rubber 2-40% adding reactor at first by weight, under normal pressure, intensification 60-90 degree centigrade, stir, react cooling in 1-3 hour and park, the packing back is stand-by as the first component.With POP 50-85% and filler 2-30%, linking agent 5-30%, pigment 1-15%, after softening agent 1-25% mixes, be ground to fineness below 40 microns, as second component packed for standby use.First component and second component 2 to 1 are mixed by weight, stir, be poured in the slit of leakage and get final product.This material can be used for positions such as the structural joint, expansion joint, construction joint of various underground structures, tunnel, dam body, can effectively reach the waterproofing design requirement.Filler adopts pressed powders such as light calcium carbonate, talcum powder, white carbon black; Linking agent adopts diamino dichloro diphenyl methane (MOCA); Pigment adopts inorganic or pigment dyestuff; Softening agent is butyl phthalate or octyl phthalate.
Embodiment 1
At first with POP 83% and TDI 12% and isoprene-isobutylene rubber 5% adding reactor, under normal pressure, heat up 70 degrees centigrade, stir, reacting cooling in 2 hours and parking, the packing back is stand-by as the first component.After POP 50% and white carbon black 18%, linking agent 9%, pigment 13%, butyl phthalate 10% mixed, be ground to 30 microns of fineness, as second component packed for standby use; First component and second component 2 to 1 are mixed by weight, stir, be poured in the slit of leakage and get final product.
Embodiment 2
At first with POP 80% and TDI 14% and isoprene-isobutylene rubber 6% adding reactor, under normal pressure, heat up 70 degrees centigrade, stir, reacting cooling in 1.5 hours and parking, the packing back is stand-by as the first component.
With POP 65% and light calcium carbonate 20%, linking agent 8%, pigment 4%, after octyl phthalate 3% mixes, be ground to 35 microns of fineness, as second component packed for standby use; First component and second component 2 to 1 are mixed by weight, stir, be poured in the slit of leakage and get final product.
Claims (5)
1. liquid expanded rubber, it is characterized in that, main raw material comprises: POP is that polyether glycol and TDI are tolylene diisocyanate, at first with POP 50-85% and TDI 1-40% and isoprene-isobutylene rubber 2-40% adding reactor, under normal pressure, intensification 60-90 degree centigrade, stir, react cooling in 1-3 hour and park, the packing back is stand-by as the first component; With POP 50-85% and filler 2-30%, linking agent 5-30%, pigment 1--15%, after softening agent 1-25% mixes, be ground to below the fineness to 40 micron, as second component packed for standby use; With first component and second component 2 to 1 mixing and stirring by weight.
2. according to the described liquid expanded rubber of claim 1, it is characterized in that filler adopts light calcium carbonate, talcum powder, white carbon black pressed powder.
3. according to the described liquid expanded rubber of claim 1, it is characterized in that linking agent adopts the diamino dichloro diphenyl methane.
4. according to the described liquid expanded rubber of claim 1, it is characterized in that pigment adopts inorganic or pigment dyestuff.
5. according to the described liquid expanded rubber of claim 1, it is characterized in that softening agent is butyl phthalate or octyl phthalate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03129772 CN1226349C (en) | 2003-05-20 | 2003-05-20 | Expanding liquid rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03129772 CN1226349C (en) | 2003-05-20 | 2003-05-20 | Expanding liquid rubber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1548472A CN1548472A (en) | 2004-11-24 |
| CN1226349C true CN1226349C (en) | 2005-11-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03129772 Expired - Fee Related CN1226349C (en) | 2003-05-20 | 2003-05-20 | Expanding liquid rubber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1226349C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121243B (en) * | 2011-01-17 | 2012-05-16 | 华北水利水电学院 | Processing method for rolling construction joint surface of concrete dam |
| CN103131162B (en) * | 2011-11-23 | 2014-05-28 | 新疆科能防水防护材料有限公司 | Specially-used enhanced polyurethane sealing water-stopping material and production method thereof |
| CN105845814B (en) * | 2016-05-04 | 2019-03-05 | 华中科技大学 | A kind of ultraviolet LED encapsulating structure and preparation method thereof |
| CN109438797A (en) * | 2018-11-14 | 2019-03-08 | 耿佃勇 | Novel modified asphalt glue |
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2003
- 2003-05-20 CN CN 03129772 patent/CN1226349C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1548472A (en) | 2004-11-24 |
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