CN102234499A - Self-heal waterproof sealant and production method thereof - Google Patents
Self-heal waterproof sealant and production method thereof Download PDFInfo
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- CN102234499A CN102234499A CN201010164855XA CN201010164855A CN102234499A CN 102234499 A CN102234499 A CN 102234499A CN 201010164855X A CN201010164855X A CN 201010164855XA CN 201010164855 A CN201010164855 A CN 201010164855A CN 102234499 A CN102234499 A CN 102234499A
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Abstract
The invention discloses a two-component self-heal waterproof sealant in the field of construction. A liquid material comprises an aqueous polyurethane water expandable sealant and a tackifier, and a powder material comprises nano-scale silica powder, nano-scale montmorillonite powder, super water absorbing resin, a cement-base osmotic crystalline parent material and an age resister. The self-heal waterproof sealant has the advantages that: (1) after construction, the two components can be reacted for solidification in a sealed state, and the sealing waterproof effect is achieved; (2) cracks are cracked again after construction, and the sealant can block the cracks in a self-heal mode to achieve the waterproof effect; (3) the sealant has high substrate adaptability, and can be inlaid or poured; (4) the coated sealant has high elasticity and flexibility; (5) the sealant has high substrate bonding performance; and (6) the product does not contain any solvent, is environment-friendly and is an environment-friendly waterproof sealant.
Description
Technical field
The present invention relates to a kind of self-healing waterproof gasket cement and production method thereof, what be specifically related to is construction work expansion joint, the structure sediment seam that is applied to fields such as construction work, public works, hydro project, motorway, high ferro, track traffic, airfield runway expansion joint, the self-healing waterproof gasket cement at water channel dam reservation expansion joint etc., the while has also been introduced the production method of sealing glue.
Background technology
At present, the domestic market material that is used for water-tights such as crack, movement joint has " polysulfide sealant ", " polyurethane sealant ", " silicone sealant ", " acrylate seal gum ", " PVC seal gum ", " pitch water chestnut fat " etc.Above waterproof and sealing material is traditional product, has made huge contribution in the waterproof field for many years.But they all do not have self-healing function, in case because various factors causes the slit to broaden as: settlement of foundation, factor such as expand with heat and contract with cold, the aging bonding force decline crack of seal gum reliefs etc., original seal gum has promptly lost the water-tight effect, must carry out again the waterproof sealing maintenance.
At present, foreign market Japan releases a kind of water-proof material " self-closing waterproof paint " with self-healing function, according to the data introduction, self-healing waterproof effect is well arranged.Use but it mainly is suitable for the big area brushing, be not suitable for the sealing in slit, and the seepage of engineering structure causes because of the slit all more than 80%.Therefore this coating is used seldom in China, is not generally promoted.
Summary of the invention
At above technical deficiency, the invention provides a kind of waterproof gasket cement and production method thereof of two-pack self-healing.This waterproof gasket cement is a reaction-curable, also can good solidification under air-tight state, and the back of splitting once more, gummed slit is met water and can the oneself heal, shows having aspect application property and the environmental protection well.
Self-healing waterproof gasket cement of the present invention, the two-pack product of forming by liquid material and powder.Liquid material (first component) comprises aqueous polyurethane water-swellable seal gum, tackifier; Powder (second component) comprises the nanometer grade silica powder, nano level montmorillonite powder, high power water-absorbing resin, cement-base infiltration crystallization sexupara material, antiaging agent.Liquid material and powder weight proportion are: 1: 1.Wherein proportioning is as follows by weight for each component:
Liquid material component (first component):
Aqueous polyurethane water-swellable seal gum 95～99%
Tackifier 1～5%
Powder component (second component):
Nanometer grade silica powder 1～5%
Nano level montmorillonite powder 85～90%
High power water-absorbing resin 0.5～1%
Cement-base infiltration crystallization sexupara material 5～10%
Antiaging agent 0.1～0.5%
The production method of self-healing waterproof gasket cement of the present invention:
The preparation of first component: take by weighing above-mentioned each component of liquid material by weight proportion, successively aqueous polyurethane water-swellable seal gum, tackifier are added in the dispersator, stir, make liquid material first.
The preparation of second component: take by weighing each component of above-mentioned powder by weight proportion, successively with the nanometer grade silica powder, the nano level montmorillonite powder, the high power water-absorbing resin, cement-base infiltration crystallization sexupara material, antiaging agent drop in the dispersator, stir, make powder second.
Self-healing waterproof gasket cement of the present invention has the following advantages:
(1) construction back two components under air-tight state can react curing molding, play the water-tight effect.
(2) ftracture once more in crack, construction back, and product of the present invention can play waterproof effect in self-healing obstruction crack.
(3) wider to basal plane adaptability, can embedding criticize or pour into.
(4) gluing has good elasticity and snappiness.
(5) with basal plane very strong adhesive property is arranged.
(6) this product does not contain solvent, and environmentally safe belongs to the environment-friendly type waterproof gasket cement.
Embodiment
Liquid material component (first component):
Aqueous polyurethane water-swellable seal gum 95%
Tackifier 5%
Powder component (second component):
Nanometer grade silica powder 4.5%
Nano level montmorillonite powder 90%
High power water-absorbing resin 1%
Cement-base infiltration crystallization sexupara material 4.4%
Antiaging agent 0.1%
The production method of self-healing waterproof gasket cement of the present invention:
The preparation of first component: take by weighing above-mentioned each component of liquid material by weight proportion, successively aqueous polyurethane water-swellable seal gum, tackifier are added in the dispersator, stir, make liquid material first.
The preparation of second component: take by weighing each component of above-mentioned powder by weight proportion, successively with the nanometer grade silica powder, the nano level montmorillonite powder, the high power water-absorbing resin, cement-base infiltration crystallization sexupara material, antiaging agent drop in the dispersator, stir, make powder second.
Claims (2)
1. self-healing waterproof gasket cement, the two-pack product by liquid material and powder are formed is characterized in that, comprises following component and content by weight:
Liquid material component:
Aqueous polyurethane water-swellable seal gum 95～99%, tackifier 1～5%.
The powder component:
Nanometer grade silica powder 1～5%, nano level montmorillonite powder 85～90%, high power water-absorbing resin 0.5～1%, cement-base infiltration crystallization sexupara material 5～10%, antiaging agent 0.1～0.5%.
2. the production method of a self-healing waterproof gasket cement is characterized in that, comprises the following steps:
The preparation of liquid material: take by weighing above-mentioned each component of liquid material by weight proportion, successively aqueous polyurethane water-swellable seal gum, tackifier are added in the dispersator, stir, make the liquid material.
The preparation of powder: take by weighing each component of above-mentioned powder by weight proportion, successively natural nano level montmorillonite powder, nanometer grade silica powder, high power water-absorbing resin, cement-base infiltration crystallization sexupara material, antiaging agent are dropped in the dispersator, stir, make powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010164855XA CN102234499A (en) | 2010-05-07 | 2010-05-07 | Self-heal waterproof sealant and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010164855XA CN102234499A (en) | 2010-05-07 | 2010-05-07 | Self-heal waterproof sealant and production method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102234499A true CN102234499A (en) | 2011-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010164855XA Pending CN102234499A (en) | 2010-05-07 | 2010-05-07 | Self-heal waterproof sealant and production method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN102234499A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103131162A (en) * | 2011-11-23 | 2013-06-05 | 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 |
| CN103740317A (en) * | 2013-05-07 | 2014-04-23 | 衡水大众橡塑有限公司 | Slow expansion type building water-stop glue and preparation method thereof |
| CN106145823A (en) * | 2016-07-05 | 2016-11-23 | 唐山东方雨虹防水技术有限责任公司 | A kind of self-healing polymer-modified cement-based waterproofing slurry of environmental protection osmosis type |
-
2010
- 2010-05-07 CN CN201010164855XA patent/CN102234499A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103131162A (en) * | 2011-11-23 | 2013-06-05 | 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 |
| CN103740317A (en) * | 2013-05-07 | 2014-04-23 | 衡水大众橡塑有限公司 | Slow expansion type building water-stop glue and preparation method thereof |
| CN103740317B (en) * | 2013-05-07 | 2015-07-22 | 衡水大众橡塑有限公司 | Slow expansion type building water-stop glue and preparation method thereof |
| CN106145823A (en) * | 2016-07-05 | 2016-11-23 | 唐山东方雨虹防水技术有限责任公司 | A kind of self-healing polymer-modified cement-based waterproofing slurry of environmental protection osmosis type |
| CN106145823B (en) * | 2016-07-05 | 2018-07-27 | 唐山东方雨虹防水技术有限责任公司 | A kind of polymer-modified cement-based waterproofing slurry of self-healing environmental protection osmosis type |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111109 |