CN104030726A - Organosilicon nanometer permeable waterproof coating and preparation method thereof - Google Patents
Organosilicon nanometer permeable waterproof coating and preparation method thereof Download PDFInfo
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Abstract
The invention relates to an organosilicon nanometer permeable waterproof coating and a preparation method thereof, and relates to the field of building coatings. The coating comprises the compositions in percent by mass: 5-50% of deionized water, 40-90% of silane, 1-20% of siloxane oligomer, 1-6% of an emulsifier, 0.1-0.4% of an aseptic and 0.2-0.5% of a ph value regulator. The preparation method of the coating comprises: at a random temperature between 1 DEG C-4 DEG C, firstly uniformly stirring the emulsifier accounting for 50% of the usage amount and deionized water, so as to obtain a water phase; then uniformly stirring a silane coupling agent, the residual 50% emulsifier and the siloxane oligomer, so as to obtain an oil phase; and finally dropwise adding the oil phase into the water phase with stirring, and after the oil phase is completely dropwise added, continuing stirring until the materials in the reactor is changed into a viscous thick paste. The coating is scientific in formula, the preparation method is simple, and the coating is capable of relatively effectively providing protection for a concrete structure for relatively long time.
Description
Technical field:
The present invention relates to building coating field, be specifically related to a kind of organic silicon nano infiltration waterproof paint and preparation method thereof.
Background technology:
Due to reasons such as concrete carbonization, chloride ion corrosion, freeze-thaw damages, cause Steel Bars in Concrete Structure corrosion, concrete is along muscle spalling and the destruction such as peel off, and this has become the subject matter that affects concrete structure durability.Research both domestic and external shows, buildings waterproof is the effective ways that improve concrete structure durability.
The direct and consequential damage that concrete structure durability is not enough and cause is big, far beyond people's expectation.Compared with security, also there is obvious deficiency in China's concrete works aspect weather resistance, needs each side to give more concern.
Chinese patent CN101560221 has introduced a kind of concrete surface penetration silane low polymer and preparation method thereof, preparation process is as follows: first a part of alkenyl alkoxy silane and a small amount of initiator are dropped into reactor, logical nitrogen excluding air, stirs 0.5～4 hour; Then drip remaining alkenyl alkoxy silane and a small amount of initiator, control temperature of reaction at 40 DEG C～140 DEG C, in 0.5～7 hour, dropwise, continue insulation 3～15 hours; Finally add reaction terminating agent, after naturally cooling, use charcoal absorption residual initiator, filter to obtain product.This preparation technology's relative complex, operation easier is large, long reaction time, heat exhaustion is high, and silane low polymer product permeates compared with disaster because of molecular weight.
Chinese patent CN101367670 has introduced a kind of silicone hydride cream-like substance with high solid content and preparation method thereof, its component and quality proportioning are: siloxanyl monomers: emulsifying agent: deionized water=70%～85%: 5%～10%: 10%～25%, and the compound system of the chain alkyl class siloxanes that wherein siloxanyl monomers is C3～C18 or the alkyls silane coupling agent of C3～C18 and other organic silane coupling agent containing function base; Emulsifying agent is one or more the compound system of emulsifying agent in fluorine-containing type emulsifying agent, Tween series emulsifying agent, Span series emulsifying agent, stearic acid emulsifying agent.Preparation method: first emulsifying agent is joined in siloxanyl monomers, heat while stirring, be heated to 50 DEG C～100 DEG C, oil phase is uniformly dispersed to obtain; And then add in oil phase dispersion and emulsion even the deionized water of 40 DEG C～85 DEG C, and wait reaction solution to be cooled to after 28 DEG C～50 DEG C, system just becomes white paste by milk sap, obtains product.This preparation method need to be to heating material, and energy consumption is high, and the raw material in formula only has silane small molecules, and this can cause concrete structural surface hydrophobicity performance not good.
Chinese patent CN1727432 has introduced a kind of preparation method of waterproofing agent of organosilicon in paste form, first deionized water, emulsifying agent, neutralizing agent are mixed by certain, add again the low-molecular-weight polydimethylsiloxane oligopolymer with active reaction end group, dispersion treatment is made pre-emulsion, add again catalyzer, at 0 DEG C～40 DEG C, through 15～22 hours polyreactions, obtain waterproofing agent of organosilicon in paste form, product viscosity is 10
6～4 × 10
6mm
2/ S.This preparation method's complex process, long reaction time, what obtain through polyreaction is macromolecular material, product viscosity is large, at penetrating power and the workability Shortcomings of concrete structural surface.
Summary of the invention:
The object of this invention is to provide a kind of organic silicon nano infiltration waterproof paint and preparation method thereof; its scientific formulation; preparation method is simple; this coating obviously strengthens in the penetrating quality of concrete structural surface; good surperficial hydrophobic effect also can be provided simultaneously; can more effectively provide the protection of longer time for concrete structure, preparation process normal-temperature operation, safer, energy-saving and environmental protection.
In order to solve the existing problem of background technology, the present invention is by the following technical solutions: its formula composition comprises: silane, siloxane oligomer, organic solvent, emulsifying agent, deionized water, sterilant, pH value conditioning agent; The mass percent of each component is (total mass is in 100 parts): deionized water 5～50%, silane 40～90%, siloxane oligomer 1～20%, emulsifying agent 1～6%, sterilant 0.1～0.4%, pH value conditioning agent 0.2～0.5%.
The mass percent of the each component of the present invention is preferably (total mass is in 100 parts): deionized water 7～40%, silane 40～85%, siloxane oligomer 2～18%, emulsifying agent 1～4%, sterilant 0.2～0.3%, pH value conditioning agent 0.3～0.4%.
Described silane coupling agent is selected from any one or any several mixtures that mix with arbitrary proportion in the long chain alkyl silane coupling agent of carbon chain lengths between 4～16, and the skeleton symbol of long chain alkyl silane coupling agent is R
1si (OR
2)
3, wherein R
1for the alkyl of carbon chain lengths between 4～16, R
2for methyl, ethyl.
Described siloxane oligomer is selected from any one or several mixtures that mix with arbitrary proportion arbitrarily in the polydimethylsiloxane, hydroxyl-terminated injecting two methyl siloxane, Methyl Hydrogen Polysiloxane Fluid, methyl and phenyl hydrogen-containing silicon oil of poly-methyltriethoxy silane oxygen alkane, methyl blocking, and the viscosity of siloxane oligomer is at 10～2000mm
2/ S, preferably 20～1000mm
2/ S.
Described emulsifying agent is selected from any one or any several mixtures that mix with arbitrary proportion in alkylphenol polyoxyethylene OP series, sorbitan fatty acid ester SPAN series, fatty alcohol-polyoxyethylene ether MOA series, paregal O series, sulfonate type anionic emulsifier, sulfate type anionic emulsifier.
Preparation method of the present invention is: (1), between 5 DEG C～50 DEG C, first stirs 50% emulsifying agent and deionized water to obtain water between 1500rpm～2000rpm rotating speed;
(2), between 5 DEG C～50 DEG C, silane coupling agent, residue 50% emulsifying agent, siloxane oligomer, organic solvent are stirred and obtain oil phase between 1500rpm～2000rpm rotating speed:
(3) arbitrary temp between 1 DEG C～40 DEG C, rotating speed is between 1500rpm～2500rpm, while stirring oil phase is splashed into water, after dropwising, stirs under 2500rpm rotating speed oil phase, until material becomes thickness lotion in reactor, can make organic silicon nano infiltration waterproof paint.
Product appearance of the present invention is white lotion, and density is at 900Kg/m
3left and right, pH value 7～8, rotary viscosity is greater than 4000mPas.
The present invention has following beneficial effect:
1, advanced technology, economical rationality, safety durable, reliable in quality and easy construction, waterproof and breathable and do not change concrete structure outward appearance.
2, when product is constructed, be sprayed directly into concrete construction surface, it can see through concrete surface and penetrate into inner a few millimeters deep, original hydrophilic concrete capillary hole wall is become to the capillary hole wall of hydrophobic, thereby the objectionable impuritiess such as the muriate that resistance shelves moisture and moisture are entrained are infiltrated inside concrete, the degradation phenomenas such as effective steel bar corrosion, freeze-thaw damage and corrosive nature that suppresses concrete structure occur, significantly improve the weather resistance of concrete structure, extend concrete structure work-ing life.
3, formula in micromolecular long chain alkyl silane coupling agent, siloxane oligomer, temperature of reaction is between 1 DEG C～40 DEG C, do not need to add thermal material, preparation method is simple, under 1500rpm～2500rpm rotating speed, while stirring oil phase slowly being splashed into water can make, safer, energy-saving and environmental protection.
Embodiment:
Below by specific embodiment, the invention will be further described, but these embodiment do not form any limitation of the invention.
Embodiment one: this embodiment by the following technical solutions: under 10 DEG C of conditions of room temperature, first 2 grams of SDS emulsifying agents, 0.2 gram of sterilant, 0.3 gram of pH value conditioning agent are added in 90 grams of deionized waters, under 1500rpm rotating speed, stir and obtain water; By 90 grams of isobutyl triethoxy silanes, 80 grams of dodecyltrimethoxysilanes, 6 grams of SPAN-80 emulsifying agents, 2 grams of OP-10 emulsifying agents, 15 grams of poly-methyltriethoxy silane oxygen alkane oligopolymer, under 1500rpm rotating speed, stir and obtain oil phase again; Finally, under 1500rpm rotating speed, while stirring above-mentioned oil phase is splashed into water, after oil phase dropwises, under 2500rpm, continue to stir, until product becomes white thickness lotion.
Embodiment two: this embodiment by the following technical solutions: under 15 DEG C of conditions of room temperature, first 3 grams of dodecylbenzene sodium sulfonate emulsifying agents, 2 grams of OP-10 emulsifying agents, 0.2 gram of sterilant, 0.3 gram of pH value conditioning agent are added in 85 grams of deionized waters, under 1500rpm rotating speed, stir and obtain water; By 140 grams of octyltri-ethoxysilane, 50 grams of hexadecyl Trimethoxy silanes, 3 grams of SPAN-80 emulsifying agents, 2 grams of OP-10 emulsifying agents, 15 grams of poly-methyltriethoxy silane oxygen alkane oligopolymer, under 1500rpm rotating speed, stir and obtain oil phase again; Finally, under 1500rpm rotating speed, while stirring above-mentioned oil phase is splashed into water, after oil phase dropwises, under 2500rpm, continue to stir, can make white waterproof coating.
Embodiment three: this embodiment by the following technical solutions: under 15 DEG C of conditions of room temperature, first 2 grams of SDS emulsifying agents, 0.2 gram of sterilant, 0.3 gram of pH value conditioning agent are added in 75 grams of deionized waters, under 1500rpm rotating speed, stir and obtain water; By 80 grams of isobutyl triethoxy silane coupling agents, 90 grams of dodecyltrimethoxysilanes, 6 grams of SPAN-80 emulsifying agents, 2 grams of OP-10 emulsifying agents, 25 grams of Methyl Hydrogen Polysiloxane Fluids, under 1800rpm rotating speed, stir and obtain oil phase again; Finally, under 1800rpm rotating speed, while stirring above-mentioned oil phase is splashed into water, after oil phase dropwises, under 2500rpm, continue to stir, can make white waterproof coating.
Embodiment four: this embodiment by the following technical solutions: under 10 DEG C of conditions of room temperature, first 4 grams of OP-10 emulsifying agents, 0.2 gram of sterilant, 0.3 gram of pH value conditioning agent are added in 80 grams of deionized waters, under 1500rpm rotating speed, stir and obtain water; By the polydimethylsiloxane oligopolymer of 90 grams of iso-octyl triethoxyl silane coupling agents, 90 grams of dodecyltrimethoxysilanes, 4 grams of SPAN-80 emulsifying agents, 2 grams of MOA-4 emulsifying agents, 30 grams of methyl blockings, under 1500rpm rotating speed, stir and obtain oil phase again; Finally, under 1500rpm rotating speed, while stirring above-mentioned oil phase is splashed into water, after oil phase dropwises, under 2500rpm, continue to stir, until material becomes sticky thickly in reactor, can make white waterproof coating.
Embodiment five: this embodiment by the following technical solutions: under 20 DEG C of conditions of room temperature, first 2 grams of SDS emulsifying agents and 2 grams of OP-10 emulsifying agents are added in 88 grams of deionized waters, under 1500rpm rotating speed, stir and obtain water; By 165 grams of isobutyl triethoxy silane coupling agents, 20 grams of dodecyltrimethoxysilanes, 6 grams of peregal 0-20 emulsifying agents, 2 grams of MOA-7 emulsifying agents, 15 grams of hydroxyl-terminated injecting two methyl siloxane oligopolymer, under 1500rpm rotating speed, stir and obtain oil phase again; Finally, under 1500rpm rotating speed, while stirring above-mentioned oil phase is splashed into water, after oil phase dropwises, under 2500rpm, continue to stir, until material becomes sticky thickly in reactor, can make white waterproof coating.
Embodiment:
Press 300g/m on concrete test block surface
2consumption spraying product of the present invention, after one week, test result shows, compared with benchmark test block, the concrete test block surface hydrophobicity that has sprayed product of the present invention can be excellent, have obvious lotus leaf effect, do not change the outward appearance of test block, the water-intake rate mean value of concrete test block is less than 0.01mm/min
1/2strength grade is not more than to the concrete of C45, more than impregnating depth reaches 3～4mm, strength grade is greater than to the concrete of C45, more than impregnating depth reaches 2～3mm, the reduction effect mean value of muriate absorbed dose is greater than 90%, meets " JTG/T B07-01-2006 highway engineering concrete structure anticorrosion technique specification " requirement.
Claims (5)
1. an organic silicon nano infiltration waterproof paint, is characterized in that its formula composition comprises: silane, siloxane oligomer, organic solvent, emulsifying agent, deionized water, sterilant, pH value conditioning agent; The mass percent of each component is: deionized water 5～50%, silane 40～90%, siloxane oligomer 1～20%, emulsifying agent 1～6%, sterilant 0.1～0.4%, pH value conditioning agent 0.2～0.5%.
2. the preparation method of an organic silicon nano infiltration waterproof paint, the preparation method who it is characterized in that it is: (1), between 5 DEG C～50 DEG C, first stirs 50% emulsifying agent and deionized water to obtain water between 1500rpm～2000rpm rotating speed;
(2), between 5 DEG C～50 DEG C, silane coupling agent, residue 50% emulsifying agent, siloxane oligomer, organic solvent are stirred and obtain oil phase between 1500rpm～2000rpm rotating speed;
(3) arbitrary temp between 1 DEG C～40 DEG C, rotating speed is between 1500rpm～2500rpm, while stirring oil phase is splashed into water, after dropwising, stirs under 2500rpm rotating speed oil phase, until material becomes thickness lotion in reactor, can make organic silicon nano infiltration waterproof paint.
3. a kind of organic silicon nano infiltration waterproof paint according to claim 1, is characterized in that the mass percent of each component is preferably: deionized water 7～40%, silane 40～85%, siloxane oligomer 2～18%, emulsifying agent 1～4%, sterilant 0.2～0.3%, pH value conditioning agent 0.3～0.4%.
4. a kind of organic silicon nano infiltration waterproof paint according to claim 1, is characterized in that described silane coupling agent is selected from any one or several mixtures that mix with arbitrary proportion arbitrarily in the long chain alkyl silane coupling agent of carbon chain lengths between 4～16.
5. a kind of organic silicon nano infiltration waterproof paint according to claim 1, is characterized in that described emulsifying agent is selected from any one or several mixtures that mix with arbitrary proportion arbitrarily in alkylphenol polyoxyethylene OP series, sorbitan fatty acid ester SPAN series, fatty alcohol-polyoxyethylene ether MOA series, paregal O series, sulfonate type anionic emulsifier, sulfate type anionic emulsifier.
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|---|---|---|---|
| CN201410199149.7A CN104030726A (en) | 2014-05-12 | 2014-05-12 | Organosilicon nanometer permeable waterproof coating and preparation method thereof |
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| CN201410199149.7A CN104030726A (en) | 2014-05-12 | 2014-05-12 | Organosilicon nanometer permeable waterproof coating and preparation method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104478288A (en) * | 2014-11-24 | 2015-04-01 | 江苏苏博特新材料股份有限公司 | Adhesive reinforcing agent for building inorganic coating material and preparation method of adhesive reinforcing agent |
| CN106146040A (en) * | 2016-07-01 | 2016-11-23 | 上海住总工程材料有限公司 | A kind of siliceous concrete protectant |
| CN108047938A (en) * | 2017-12-25 | 2018-05-18 | 广州乾程化工科技发展有限公司 | A kind of high soil resistance fluosilicic lotion and preparation method thereof |
| CN108439855A (en) * | 2018-05-14 | 2018-08-24 | 江苏沃佳新材料科技有限公司 | Iso-octyl triethoxy paste silane and preparation method thereof |
| CN108753159A (en) * | 2018-06-29 | 2018-11-06 | 无锡鸿孚硅业科技有限公司 | A kind of organic silicon emulsion concrete waterproofer and preparation method thereof |
| CN111647302A (en) * | 2020-04-28 | 2020-09-11 | 嘉兴海欣生态科技有限公司 | Preparation method of environment-friendly concrete/soil hydrophobing agent |
| CN113045985A (en) * | 2021-03-10 | 2021-06-29 | 中天东方氟硅材料有限公司 | Organosilicon building waterproof coating and preparation method thereof |
| CN113105803A (en) * | 2021-04-17 | 2021-07-13 | 河南阳光防水科技有限公司 | Crystalline film-forming waterproof agent for building indoor wall and floor |
| CN116376442A (en) * | 2023-04-21 | 2023-07-04 | 安徽富瑞雪化工科技股份有限公司 | Seepage-proof building coating and preparation process thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102911597A (en) * | 2012-10-23 | 2013-02-06 | 江苏博特新材料有限公司 | Environment-friendly coating for protecting bare concrete and preparation method thereof |
-
2014
- 2014-05-12 CN CN201410199149.7A patent/CN104030726A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102911597A (en) * | 2012-10-23 | 2013-02-06 | 江苏博特新材料有限公司 | Environment-friendly coating for protecting bare concrete and preparation method thereof |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104478288A (en) * | 2014-11-24 | 2015-04-01 | 江苏苏博特新材料股份有限公司 | Adhesive reinforcing agent for building inorganic coating material and preparation method of adhesive reinforcing agent |
| CN106146040A (en) * | 2016-07-01 | 2016-11-23 | 上海住总工程材料有限公司 | A kind of siliceous concrete protectant |
| CN108047938A (en) * | 2017-12-25 | 2018-05-18 | 广州乾程化工科技发展有限公司 | A kind of high soil resistance fluosilicic lotion and preparation method thereof |
| CN108047938B (en) * | 2017-12-25 | 2020-06-23 | 广州乾程化工科技发展有限公司 | High-antifouling-performance silicon-fluorine emulsion and preparation method thereof |
| CN108439855A (en) * | 2018-05-14 | 2018-08-24 | 江苏沃佳新材料科技有限公司 | Iso-octyl triethoxy paste silane and preparation method thereof |
| CN108753159A (en) * | 2018-06-29 | 2018-11-06 | 无锡鸿孚硅业科技有限公司 | A kind of organic silicon emulsion concrete waterproofer and preparation method thereof |
| CN111647302A (en) * | 2020-04-28 | 2020-09-11 | 嘉兴海欣生态科技有限公司 | Preparation method of environment-friendly concrete/soil hydrophobing agent |
| CN113045985A (en) * | 2021-03-10 | 2021-06-29 | 中天东方氟硅材料有限公司 | Organosilicon building waterproof coating and preparation method thereof |
| CN113105803A (en) * | 2021-04-17 | 2021-07-13 | 河南阳光防水科技有限公司 | Crystalline film-forming waterproof agent for building indoor wall and floor |
| CN116376442A (en) * | 2023-04-21 | 2023-07-04 | 安徽富瑞雪化工科技股份有限公司 | Seepage-proof building coating and preparation process thereof |
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Application publication date: 20140910 |