CN102815884B - Fluorine-containing organosilicon waterproof material for cement concrete - Google Patents
Fluorine-containing organosilicon waterproof material for cement concrete Download PDFInfo
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- CN102815884B CN102815884B CN201210332227.7A CN201210332227A CN102815884B CN 102815884 B CN102815884 B CN 102815884B CN 201210332227 A CN201210332227 A CN 201210332227A CN 102815884 B CN102815884 B CN 102815884B
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Abstract
The invention discloses a fluorine-containing organosilicon waterproof material for cement concrete, which is prepared from 20-30% of fluorine-containing acrylic resin, 30-40% of polyacrylamide modified resin, 20-30% of polyvinyl alcohol modified resin, 10-20% of organosiloxane, 5-10% of silane coupling agent and 3-5% of Lewis acid. The fluorine-containing organosilicon waterproof material for cement concrete disclosed by the invention has the advantages of favorable water resistance, oil resistance, weather resistance, pollution resistance and adhesiveness.
Description
Technical field
The present invention relates to road surface, bridge, tunnel water proofing technical field, especially relate to fluorine-containing organic silicon water-proof material and preparation method thereof for a kind of cement concrete.
Background technology
Water is to cause concrete structure and Steel Concrete to accept the important substance that weather resistance is damaged.No matter be soft water erosion, freeze-thaw damage, alkali, the steel bar corrosion of cement concrete, the corrosion of even water conservancy project, Accommodation, all be unable to do without the effect of water.Therefore, waterproof is the important measures that improve cement concrete constructions weather resistance.The water-proof material of China mainly contains at present: polymer modified bituminous waterproof sheet material, synthetic polymeric waterproofing material, waterproof paint, sealing material, injection material, waterproof mortar, bentonite waterproof material, water-resisting agent etc.Existing market prospect is reasonable is waterproofing agent of organosilicon.Because waterproofing agent of organosilicon has good water resistance, effectively organize the intrusion of moisture, organosilicon material has again excellent oxytolerant, ozone, action of ultraviolet light simultaneously.Silicoorganic compound have become the main raw that Jian builds Cai Liao Dwelling water treatment, when organosilicon material is painted on silicate base material surface or mixes in its mixture, siloxanes with reactive behavior, not only can the interaction by active group form reticulated hydrophobic silicone film, can also with silicate base material in hydroxyl generation condensation reaction form end with the silane chain of alkyl.This hydrophobic reticulated siloxane molecule film has very low surface tension, can be evenly distributed on wall.
Fluorine is the element of electronegativity maximum in the periodic table of elements, and its atomic radius is only slightly large than hydrogen atom, has minimum polarizability.So the chemical resistant properties of fluorochemicals is fabulous.Meanwhile, floating first daughter nucleus is very strong to the constraint of its extranuclear electron and bonding electrons cloud, and C-F bond polarization is low, lower containing C-F Intermolecular Forces, thereby has surface property specially, shows as water tolerance, oil-proofness and staining property.Therefore, fluorine-containing organic silicon water-resisting agent has good water-repellancy, oil-proofness, weathering resistance, anti-staining property and tack.
Summary of the invention
The object of the present invention is to provide a kind of environment protecting cement the reinforcement of concrete fluorine-containing organic silicon water-proof material with good water-repellancy, oil-proofness, weathering resistance, anti-staining property and tack.
For achieving the above object, the present invention adopts following technical scheme:
A cement concrete fluorine-containing organic silicon water-proof material, comprises component and content (weight percentage):
More optimizedly: described fluoroacrylic resin is methacrylic acid ten difluoro fat in heptan.
More optimizedly: described polyacrylamide modified resin is for take the polyacrylamide modified resin that methylcellulose gum is properties-correcting agent.
More optimizedly: described polyvinyl alcohol modification resin is for take the polyvinyl alcohol modification resin that carboxymethyl cellulose is properties-correcting agent.
More optimizedly: described organo-siloxane Wei Er functional group organo-siloxane.
More optimizedly: described silane coupling agent is KH550, KH570 or A151.
More optimizedly: described Lewis acid is the fluoroform sulphonate of aluminum chloride, iron(ic) chloride, boron trifluoride, columbium pentachloride or lanthanon.
The present invention also provides a kind of method of fluorine-containing organic silicon water-proof material for cement concrete of preparing, and comprises step:
A) fluoroacrylic resin, polyacrylamide modified resin, polyvinyl alcohol modification resin, organo-siloxane are mixed and dropped in reactor by certain ratio row, heated and stirred is about 0.5 hour;
B) a certain amount of silane coupling agent is joined in reactor to heated and stirred about 1 hour;
C) a certain amount of Lewis acid is joined to continuation stirring in reactor and can obtain the finished product after about 2 hours.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further details.
Embodiment 1
By 25% methacrylic acid, ten difluoro fat in heptan, 35% polyacrylamide modified resin, 20% polyvinyl alcohol modification resin 10% dimethyl siloxane adds in reactor in certain sequence successively, is heated to 110 degree, stirs 0.5 hour.Add again 6% Silane coupling agent KH550, continue to stir 1 hour.Finally add 4% aluminum chloride, stir after 2 hours, cooling, make finished product.
Embodiment 2
By 25% methacrylic acid, ten difluoro fat in heptan, 35% polyacrylamide modified resin, 20% polyvinyl alcohol modification resin 10% dimethyl siloxane adds in reactor in certain sequence successively, is heated to 110 degree, stirs 0.5 hour.Add again 6% Silane coupling agent KH550, continue to stir 1 hour.Finally add 4% boron trifluoride, stir after 2 hours, cooling, make finished product.
Embodiment 3
By 25% methacrylic acid, ten difluoro fat in heptan, 35% polyacrylamide modified resin, 20% polyvinyl alcohol modification resin 10% dimethyl siloxane adds in reactor in certain sequence successively, is heated to 100 degree, stirs 0.5 hour.Add again 6% Silane coupling agent KH550, continue to stir 1 hour.Finally add 4% boron trifluoride, stir after 2 hours, cooling, make finished product.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to the protection domain of inventing type.
Claims (6)
1. a cement concrete fluorine-containing organic silicon water-proof material, comprises the following component of following weight percent:
Wherein, described organo-siloxane Wei Er functional group organo-siloxane.
2. cement concrete as claimed in claim 1 fluorine-containing organic silicon water-proof material, is characterized in that: described polyacrylamide modified resin is for take the polyacrylamide modified resin that methylcellulose gum is properties-correcting agent.
3. cement concrete as claimed in claim 1 fluorine-containing organic silicon water-proof material, is characterized in that: described polyvinyl alcohol modification resin is for take the polyvinyl alcohol modification resin that carboxymethyl cellulose is properties-correcting agent.
4. cement concrete as claimed in claim 1 fluorine-containing organic silicon water-proof material, is characterized in that: described silane coupling agent is KH550, KH570 or A151.
5. cement concrete as claimed in claim 1 fluorine-containing organic silicon water-proof material, is characterized in that: the fluoroform sulphonate that described Lewis acid is aluminum chloride, iron(ic) chloride, boron trifluoride, columbium pentachloride or lanthanon.
6. the preparation method of fluorine-containing organic silicon water-proof material for cement concrete described in claim 1～5 any one, comprises step:
A) dodecafluoroheptyl methacrylate, polyacrylamide modified resin, polyvinyl alcohol modification resin, organo-siloxane are mixed according to a certain percentage and drop in reactor, heated and stirred 0.5 hour;
B) a certain amount of silane coupling agent is joined in reactor to heated and stirred 1 hour;
C) a certain amount of Lewis acid is joined to continuation stirring in reactor and obtain the finished product after 2 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210332227.7A CN102815884B (en) | 2012-09-10 | 2012-09-10 | Fluorine-containing organosilicon waterproof material for cement concrete |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210332227.7A CN102815884B (en) | 2012-09-10 | 2012-09-10 | Fluorine-containing organosilicon waterproof material for cement concrete |
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| CN102815884A CN102815884A (en) | 2012-12-12 |
| CN102815884B true CN102815884B (en) | 2014-02-26 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105602386A (en) * | 2015-12-31 | 2016-05-25 | 祁守岗 | High weather-resistant fluorocarbon paint and preparation method thereof |
| CN105602385A (en) * | 2015-12-31 | 2016-05-25 | 祁守岗 | High abrasion-resistant fluorocarbon paint and preparation method thereof |
| CN106565168A (en) * | 2016-10-29 | 2017-04-19 | 成都市红鑫科技有限公司 | Quick-drying waterproof building material |
| CN109233478A (en) * | 2018-07-27 | 2019-01-18 | 东莞环球经典新型材料有限公司 | A kind of fluorine-containing organic silicon stone protective agent and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1353161A (en) * | 2000-11-13 | 2002-06-12 | 徐福明 | Water-proof impervious organosilicon agent |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1353161A (en) * | 2000-11-13 | 2002-06-12 | 徐福明 | Water-proof impervious organosilicon agent |
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Owner name: SHENZHEN KZD GREEN PERPETUAL WATERPROOF MATERIAL C Free format text: FORMER OWNER: SHENZHEN CITY KEZHONGDA TRAFFIC BUILDING MATERIAL CO., LTD. Effective date: 20131104 |
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Effective date of registration: 20131104 Address after: 518000 Guangdong city in Shenzhen Province, Nanshan District City Xili Road No. 1068, Shenzhen University Institute of the National Supercomputing Center in Shenzhen 13 floor Applicant after: Shenzhen Kezhong Big Green Permanent Waterproof Material Co., Ltd. Address before: 518000 Guangdong city of Shenzhen province Nanshan District city academy Shenzhen University Xili Road No. 1068 Shenzhen national Supercomputer Center 3 floor Applicant before: Shenzhen City Kezhongda Traffic Building Material Co., Ltd. |
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