CN104446270A - Building caulking crystallizable adhesive sealant - Google Patents
Building caulking crystallizable adhesive sealant Download PDFInfo
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- CN104446270A CN104446270A CN201410630957.4A CN201410630957A CN104446270A CN 104446270 A CN104446270 A CN 104446270A CN 201410630957 A CN201410630957 A CN 201410630957A CN 104446270 A CN104446270 A CN 104446270A
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Abstract
The invention discloses a building caulking crystallizable adhesive sealant. The building caulking crystallizable adhesive sealant comprises a component A and a component B in a weight ratio of 1: (1.0-1.6), wherein the component A comprises the following ingredients in percentage by weight: 70-90% of polyether polyol and 10-30% of polyisocyanate and the component B comprises the following ingredients in percentage by weight: 30-38% of cement, 5-9% of an expanding agent, 8-16% of quartz sand, 5-12% of a mineral additive and other ingredients. The ingredients in the component A react to obtain a NCO-terminated prepolymer which has very strong adhesion to multiple materials; crystallizable material is added and is fully mixed with the prepolymer to have a reaction so that the building caulking crystallizable adhesive sealant can be crystallized in the caulking and crystals has high adhesion to gaps, good caulking effect is achieved and can be maintained for a long term.
Description
Technical field
The present invention relates to a kind of building water-proof material, be specifically related to one and there is building jointing crystallization cohesiveness sealing compound.
Background technology
Along with the fast development of China's economic technology, infrastructure construction and municipal traffic engineering, the especially settlement joint of concrete structure, the sealing at expansion joint, the water-tight of the seams such as airfield runway, bridge, aqueduct, increasing to the demand of seal gum.
In buildings waterproof field, generally water-proof material can be divided into flexibility and rigidity water-proofing material, although flexible water has good waterproof effect, general weather resistance is poor, and has certain pollution in production process; Rigidity water-proofing material, also exists resistance to cleavage poor, can not effect a radical cure whole space of vesicular structure and the healing of fracture, and waterproof cost is also higher, fundamentally can't solve waterproof problem.Cement permeable crystalline waterproofing material is a kind of waterproof material grown up in recent years, the active substance that it can be contained by self is under the effect of concentration difference, penetrate into concrete tiny crack place, react with the material such as calcium hydroxide and unhydrated cement generation crystalline deposit, generate a large amount of needle-like crystal blocking bleeding of concrete passages, thus reach the object of waterproof.But these water-proof material percent crystallization in massecuites penetrated in crackle are low, and crystallization effect is poor, simultaneously the weathering resistance of xln and high elongation at tear also very low, acid and alkali-resistance brine corrosion and wear resistance are also poor, at secondary impermeability with to repair performance in the ability of crack not satisfactory.At present, although domestic existing partial monopoly reported the preparation method of such material, there is certain technological deficiency, as this technique is too complicated in actual production, lack operability.
Summary of the invention
For the water-proof material penetrated in crackle because technological deficiency causes percent crystallization in massecuite low, the problems such as crystallization effect difference, the invention provides a kind of building jointing crystallization cohesiveness sealing compound, can the material of crystallization by obtaining after stirring abundant reaction holding NCO base performed polymer and adding by polyether glycol in first component and polyisocyanates, crystallization by region and environmental influence little, crystalline rate is high, has excellent weathering resistance, high elongation at tear, good acid and alkali-resistance brine corrosion and wear resistance after this water-proof material crystallization.
The invention provides a kind of building jointing crystallization cohesiveness sealing compound, comprise with mass ratio range be 1: 1.0-1.6 first component and component B, wherein by weight percentage
The composition and ratio of first component is:
Polyether glycol 70-90%
Polyisocyanates 10-30%
The composition and ratio of component B is:
Cement 30-38%
Swelling agent 5-9%
Quartz sand 8-16%
Mineral additive 5-12%
Water reducer 5-11%
Retardant 0.2-1.0%
Crystalline deposit agent 1-9%
Complexing agent 1-8%
Calcium ion compensator 1-10%
Crystal growth agent 0.1-1.0%
Polyether glycol 8-10%
Polyamine 3-5%
Softening agent 2-5%
Mineral filler 8-13%
Coupling agent 1-4%
Catalyzer 2-5%
Defoamer 0.1-1.0%.
Preferably, described building jointing crystallization cohesiveness sealing compound, comprise with mass ratio range be 1: 1.0-1.6 first component and component B, wherein comprise by weight percentage
The composition and ratio of first component is:
Polyether glycol 80%
Polyisocyanates 20%
The composition and ratio of component B is:
Cement 30%
Swelling agent 5%
Quartz sand 8%
Mineral additive 5%
Water reducer 5%
Retardant 1.0%
Crystalline deposit agent 5%
Complexing agent 5%
Calcium ion compensator 2%
Crystal growth agent 1.0%
Polyether glycol 8%
Polyamine 5%
Softening agent 5%
Mineral filler 8%
Coupling agent 3%
Catalyzer 3%
Defoamer 1.0%.
Preferably, the end NCO base performed polymer be obtained by reacting with polyisocyanates after the composition polyether glycol vacuum hydro-extraction of described first component;
Described component B is mixed by polyether glycol, polyamine, softening agent and mineral filler vacuum hydro-extraction hand and coupling agent, catalyzer and defoamer.
Preferably, described polyisocyanates is aromatic diisocyanate class, comprises tolylene diisocyanate, diphenylmethanediisocyanate and isophorone diisocyanate, can be one or several mixture wherein.
Preferably, described cement is silicate cement and aluminosulfate cement mixture, and wherein the weight ratio of the two is 8: 1 ~ 2.
Preferably, described quartz sand is particle diameter 50 ~ 110 order and 210 ~ 350 orders, two specification quartz sands are composite forms, the composite weight ratio 1 ~ 6: 1 ~ 11 of the two.
Preferably, described mineral filler is powder calciferous, comprises calcium carbonate, high territory; Described catalyzer comprises stannous octoate, dibutyl tin laurate; Described defoamer is the diisobutyl ketone solution of polysiloxane.
Preferably, described mineral additive is selected from silicon ash, ground blast furnace slag and flyash or its mixture; Described water reducer is Early-strength polycarboxylate superplasticizer or naphthalene water reducer; Described retardant is selected from Sunmorl N 60S, Trisodium Citrate, tartrate or its mixture; Described crystalline deposit agent is quick dissolved sodium silicate or sodium carbonate.
Preferably, described complexing agent is oxalic acid or metasilicic acid; Calcium ion compensator is calcium hydroxide; Crystal growth agent is Quilonum Retard or calcium formiate.
Beneficial effect of the present invention:
Building jointing crystallization cohesiveness sealing compound of the present invention can the material of crystallization by obtaining after stirring abundant reaction holding NCO base performed polymer to have extremely strong cohesiveness to numerous materials and adding by polyether glycol in first component and polyisocyanates, the abundant hybrid reaction of two class materials, not only can at filleting intercrystalline, and the cementability of xln to gap is high, filleting is effective, can keep filleting effect for a long time; Simultaneously crystallization by region and environmental influence little, crystalline rate is high, has excellent weathering resistance, high elongation at tear, good acid and alkali-resistance brine corrosion and wear resistance after this water-proof material crystallization.
Embodiment
The present invention is described in further detail below, can implement according to this with reference to specification sheets word to make those skilled in the art.
Embodiment 1
Building jointing crystallization cohesiveness sealing compound provided by the invention, comprise with mass ratio range be 1: 1.2 first component and component B, wherein by weight percentage
The composition and ratio of first component is:
Polyether glycol 80%
Polyisocyanates 20%
The composition and ratio of component B is:
Cement 30%
Swelling agent 5%
Quartz sand 8%
Mineral additive 5%
Water reducer 5%
Retardant 1.0%
Crystalline deposit agent 5%
Complexing agent 5%
Calcium ion compensator 2%
Crystal growth agent 1.0%
Polyether glycol 8%
Polyamine 5%
Softening agent 5%
Mineral filler 8%
Coupling agent 3%
Catalyzer 3%
Defoamer 1.0%.
Embodiment 2
Building jointing crystallization cohesiveness sealing compound provided by the invention, comprise with mass ratio range be 1: 1.3 first component and component B, wherein by weight percentage
The composition and ratio of first component is:
Polyether glycol 73%
Polyisocyanates 27%
The composition and ratio of component B is:
Cement 35%
Swelling agent 6%
Quartz sand 8%
Mineral additive 6%
Water reducer 8%
Retardant 1.0%
Crystalline deposit agent 3%
Complexing agent 3%
Calcium ion compensator 2%
Crystal growth agent 1.0%
Polyether glycol 8%
Polyamine 3%
Softening agent 2%
Mineral filler 8%
Coupling agent 2%
Catalyzer 3%
Defoamer 1.0%.
Embodiment 3
Building jointing crystallization cohesiveness sealing compound provided by the invention, comprise with mass ratio range be 1: 1.4 first component and component B, wherein by weight percentage
The composition and ratio of first component is:
Polyether glycol 75%
Polyisocyanates 25%
The composition and ratio of component B is:
Cement 32%
Swelling agent 5%
Quartz sand 8%
Mineral additive 5%
Water reducer 5%
Retardant 1.0%
Crystalline deposit agent 4%
Complexing agent 4%
Calcium ion compensator 2%
Crystal growth agent 1.0%
Polyether glycol 8%
Polyamine 5%
Softening agent 5%
Mineral filler 8%
Coupling agent 3%
Catalyzer 3%
Defoamer 1.0%.
First component is first placed in agravic mixing and blending machine and stirs by this product, stirs and makes it to mix for 120 minutes, then places 300 minutes; Component B is placed in agravic mixing and blending machine to stir, stir and make it to mix for 50 minutes, then grind by 240 mesh sieve, finally proportionally the first and second components are all placed in agravic mixing and blending machine and stir, stir and within least 100 minutes, make it to mix, and package.
During use, a certain amount of water of the product powder made is diluted that (weight ratio of the water of product powder and water is: 1: 1.5), be placed in stirrer to stir with 400 turns/min, and rapidly mixture is injected in building cracks, allow its crystallization joint filling.
The test-results of the building jointing crystallization cohesiveness sealing compound in embodiment 1-3 is as shown in the table:
Although embodiment of the present invention are open as above, but it is not restricted to listed in specification sheets and embodiment utilization, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details.
Claims (9)
1. a building jointing crystallization cohesiveness sealing compound, it is characterized in that comprising with mass ratio range be 1: 1.0-1.6 first component and component B, wherein by weight percentage
The composition and ratio of first component is:
Polyether glycol 70-90%
Polyisocyanates 10-30%
The composition and ratio of component B is:
Cement 30-38%
Swelling agent 5-9%
Quartz sand 8-16%
Mineral additive 5-12%
Water reducer 5-11%
Retardant 0.2-1.0%
Crystalline deposit agent 1-9%
Complexing agent 1-8%
Calcium ion compensator 1-10%
Crystal growth agent 0.1-1.0%
Polyether glycol 8-10%
Polyamine 3-5%
Softening agent 2-5%
Mineral filler 8-13%
Coupling agent 1-4%
Catalyzer 2-5%
Defoamer 0.1-1.0%.
2. building jointing crystallization cohesiveness sealing compound according to claim 1, is characterized in that by weight percentage
The composition and ratio of first component is:
Polyether glycol 80%
Polyisocyanates 20%
The composition and ratio of component B is:
Cement 30%
Swelling agent 5%
Quartz sand 8%
Mineral additive 5%
Water reducer 5%
Retardant 1.0%
Crystalline deposit agent 5%
Complexing agent 5%
Calcium ion compensator 2%
Crystal growth agent 1.0%
Polyether glycol 8%
Polyamine 5%
Softening agent 5%
Mineral filler 8%
Coupling agent 3%
Catalyzer 3%
Defoamer 1.0%.
3. building jointing crystallization cohesiveness sealing compound according to claim 1 and 2, the end NCO base performed polymer be obtained by reacting with polyisocyanates after it is characterized in that the composition polyether glycol vacuum hydro-extraction of described first component;
Described component B is mixed by polyether glycol, polyamine, softening agent and mineral filler vacuum hydro-extraction hand and coupling agent, catalyzer and defoamer.
4. building jointing crystallization cohesiveness sealing compound according to claim 1 and 2, it is characterized in that described polyisocyanates is aromatic diisocyanate class, comprising tolylene diisocyanate, diphenylmethanediisocyanate and isophorone diisocyanate, can be one or several mixture wherein.
5. building jointing crystallization cohesiveness sealing compound according to claim 1 and 2, it is characterized in that described cement is silicate cement and aluminosulfate cement mixture, wherein the weight ratio of the two is 8: 1 ~ 2.
6. building jointing crystallization cohesiveness sealing compound according to claim 1 and 2, is characterized in that described quartz sand is particle diameter 50 ~ 110 order and 210 ~ 350 orders, two specification quartz sands are composite forms, the composite weight ratio 1 ~ 6: 1 ~ 11 of the two.
7. building jointing crystallization cohesiveness sealing compound according to claim 1 and 2, is characterized in that described mineral filler is powder calciferous, comprises calcium carbonate, high territory; Described catalyzer comprises stannous octoate, dibutyl tin laurate; Described defoamer is the diisobutyl ketone solution of polysiloxane.
8. building jointing crystallization cohesiveness sealing compound according to claim 1 and 2, is characterized in that described mineral additive is selected from silicon ash, ground blast furnace slag and flyash or its mixture; Described water reducer is Early-strength polycarboxylate superplasticizer or naphthalene water reducer; Described retardant is selected from Sunmorl N 60S, Trisodium Citrate, tartrate or its mixture; Described crystalline deposit agent is quick dissolved sodium silicate or sodium carbonate.
9. building jointing crystallization cohesiveness sealing compound according to claim 1 and 2, is characterized in that described complexing agent is oxalic acid or metasilicic acid; Calcium ion compensator is calcium hydroxide; Crystal growth agent is Quilonum Retard or calcium formiate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410630957.4A CN104446270A (en) | 2014-11-11 | 2014-11-11 | Building caulking crystallizable adhesive sealant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410630957.4A CN104446270A (en) | 2014-11-11 | 2014-11-11 | Building caulking crystallizable adhesive sealant |
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| CN104446270A true CN104446270A (en) | 2015-03-25 |
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| CN201410630957.4A Pending CN104446270A (en) | 2014-11-11 | 2014-11-11 | Building caulking crystallizable adhesive sealant |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105542654A (en) * | 2015-12-18 | 2016-05-04 | 严飞华 | Efficient water-based nano-silicon rubber sealing waterproofing agent |
| CN109020458A (en) * | 2018-08-01 | 2018-12-18 | 安徽信息工程学院 | The preparation method of waterproof material |
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| CN101818018A (en) * | 2009-02-26 | 2010-09-01 | 北京东方雨虹防水技术股份有限公司 | Knife coating type polyurea waterproof coating |
| CN101818045A (en) * | 2009-02-26 | 2010-09-01 | 北京东方雨虹防水技术股份有限公司 | Two-component polyurethane sealant |
| CN102167547A (en) * | 2010-12-22 | 2011-08-31 | 北京东方雨虹防水技术股份有限公司 | Cementitious capillary crystalline waterproof material capable of quickly repairing cracks |
| CN103992633A (en) * | 2014-05-08 | 2014-08-20 | 中国铁道科学研究院铁道建筑研究所 | Polyurethane caulking material for expansion joints of ballastless track of high speed railway |
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2014
- 2014-11-11 CN CN201410630957.4A patent/CN104446270A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818018A (en) * | 2009-02-26 | 2010-09-01 | 北京东方雨虹防水技术股份有限公司 | Knife coating type polyurea waterproof coating |
| CN101818045A (en) * | 2009-02-26 | 2010-09-01 | 北京东方雨虹防水技术股份有限公司 | Two-component polyurethane sealant |
| CN102167547A (en) * | 2010-12-22 | 2011-08-31 | 北京东方雨虹防水技术股份有限公司 | Cementitious capillary crystalline waterproof material capable of quickly repairing cracks |
| CN103992633A (en) * | 2014-05-08 | 2014-08-20 | 中国铁道科学研究院铁道建筑研究所 | Polyurethane caulking material for expansion joints of ballastless track of high speed railway |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105542654A (en) * | 2015-12-18 | 2016-05-04 | 严飞华 | Efficient water-based nano-silicon rubber sealing waterproofing agent |
| CN109020458A (en) * | 2018-08-01 | 2018-12-18 | 安徽信息工程学院 | The preparation method of waterproof material |
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Application publication date: 20150325 |
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