CN106118481B - Self-healing polymers cement waterproof paint and preparation method thereof - Google Patents
Self-healing polymers cement waterproof paint and preparation method thereof Download PDFInfo
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- CN106118481B CN106118481B CN201610492084.4A CN201610492084A CN106118481B CN 106118481 B CN106118481 B CN 106118481B CN 201610492084 A CN201610492084 A CN 201610492084A CN 106118481 B CN106118481 B CN 106118481B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D201/00—Coating compositions based on unspecified macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses self-healing polymers cement waterproof paint and preparation method thereof.The coating is dual-component coating, and liquid material A is made of the component with heavyweight percentage：Polymer emulsion 70 80%, hydroxyethyl cellulose 0.5 1%, defoamer 3 5%, water surplus；Powder material B is made of the component of percentage by weight：Portland cement 20 35%, high water absorbency polymer 5 15%, silicon dioxide powder 3 10%, dispersant 1 3%, water-reducing agent 1 3%, the polymer 5 15% for making microcapsule wall material, calcium hydroxide 3 5%, quartz sand 10 30%, filler surplus.The present invention adjusts the curing rate of coating by adjusting the hydration rate of cement by using above-mentioned technology, and its hardening time can control, and can also be used in the case of leak stopping, when this occurs again in crack, water absorbent polymer can react in time.And can be with Reusability, the active materials that do not crack are still in resting state, with regard to that can play a role when to be cracked.It is great breakthrough in buildings waterproof theory.
Description
Technical field
The invention belongs to architectural waterproof material technical field, and in particular to can repair leakage automatically after one kind leakage and lack
Sunken self-healing polymers cement waterproof paint and preparation method thereof.
Background technology
Water-repellent paint is waterproof excellent material, the water-repellent paint that engineering uses at present based on polymer cement paint, it
With good cement basal plane cementability, good extensibility itself.And it can construct in moisture substrate.Welcome by engineering very much,
It is popular in engineering project.
But water-repellent paint, with cement（Concrete）Basal plane caking property is good, works as substrate concrete（Or mortar）After cracking, meeting
Pull coating to make its fracture, cause the leakage of building, waterproof is failed.
Mixed with brick or concrete construction, because of structural deformation, mortar（Concrete）Aquation shrink and original of expanding with heat and contract with cold
Because can all make it produce many crackles.This is the current common fault of building, although scholar makes great efforts from every side, because constructing, supporting
Shield and human factor etc., the crack of mortar and concrete are still unavoidable.
The content of the invention
In order to solve concrete（Mortar）Seepage caused by cracking, of the invention first purpose are to provide a kind of energy
Polymer cement waterproof paints that the self-regeneration of intelligent ground has leaked, fine cracks.The coating is scratched in mortar（Coagulation
Soil）Surface layer.Internal active material is in closed state in the case of fissureless；Due to various reasons generate coating many thin
Behind small crack, in the case of anhydrous（Or in the case that wetness is not high）Coating is in stable state.Applied when water flows into
Expect crack（Or in the case that wetness is high）, under the action of water, coating can voluntarily fast reaction, reaction of formation thing reparation
Crack, blocks leakage channel, self-repair coating defect, recovers the function of waterproof.The coating waterproof layer becomes intelligent
The waterproof layer of selfreparing, the weakness of cracking can not be resisted by overcoming waterproof material, in upstream face and backwater surface construction.This hair
Another bright purpose is to provide the preparation method of above-mentioned leakage selfreparing waterproof polymer cement waterproof paint.
The self-healing polymers cement waterproof paint, the coating are dual-component coating, and component A is liquid material, and B component is
Powder, it is characterised in that：
Liquid material A is made of the component with heavyweight percentage：
Polymer emulsion 70-80% hydroxyethyl celluloses 0.5-1%
Defoamer 3--5% water surplus.
Powder material B is made of the component of percentage by weight：
Portland cement 20-35% high water absorbency polymers 5-15%
Silicon dioxide powder 3-10% dispersants 1-3%
Water-reducing agent 1-3% makees the polymer 5-15% of microcapsule wall material
Calcium hydroxide 3-5% quartz sands 10-30%
Filler surplus.
The self-healing polymers cement waterproof paint, it is characterised in that the powder material B is by percentage by weight
Component forms：Portland cement 20-35%, high water absorbency polymer 10%-15%, silica 3-8%, dispersant 1-2%, subtracts
Aqua 0.5-2%, makees the polymer 5-10% of microcapsule wall material, calcium hydroxide 3-5%, quartz sand 10-20%, filler surplus.
The self-healing polymers cement waterproof paint, it is characterised in that the powder material B is by percentage by weight
Component forms：Portland cement 10-40%, high water absorbency polymer 10%-15%, silica 3-10%, dispersant 1-2%,
Water-reducing agent 0.5-2%, makees the polymer 5-10% of microcapsule wall material, calcium hydroxide 3-5%, quartz sand 10-30%, filler surplus.
The self-healing polymers cement waterproof paint, it is characterised in that the filler in powder material B is talcum powder, activated carbon
One or two kinds of thing mixed above in sour calcium, wollastonite in powder, bentonite, flake asbestos.
The self-healing polymers cement waterproof paint, it is characterised in that the high water absorbency polymer in powder material B uses
Polyvinyl alcohol, polyacrylate high water absorbency polymer and respective scion grafting acrylic compounds and the high suction of inorganic mineral scion grafting
Waterborne polymeric one or more of which mixture.
The self-healing polymers cement waterproof paint, it is characterised in that make the poly- of microcapsule wall material in powder material B
Compound is using ethylene methacrylic ether-copolymer-maleic anhydride, polyvinyl alcohol, diisobutyl thiocarbamate, dicyanate one
Kind or two kinds of compositions.
The self-healing polymers cement waterproof paint, it is characterised in that the dispersant in powder material B is selected from naphthalene sulfonic acids first
Aldehyde condensate, fat alcohol polyethylene ether or condensation compound of methyl naphthalene sulfonic acid and formaldehyde.
The self-healing polymers cement waterproof paint, it is characterised in that the water-reducing agent in powder material B is selected from sulfomethylated lignin
Hydrochlorate, melamine based water reducer or powder polycarboxylate.
The preparation method of the self-healing polymers cement waterproof paint, it is characterised in that comprise the following steps：
1）The polymer for making capsule wall material is added in water or solvent, heating makes it thoroughly dissolve and carries out reactive grafting shape
Add, filter out solution after stirring, the high-hydroscopicity for wrapping up solution gathers into solution, then by high water absorbency polymer, silica
Compound, silica are insoluble to carry out being dispersed into little particle, and cools down and vacuumize, and solvent is volatilized, and obtains mixing composite capsule；
2）By proportioning, by step 1）Obtain mixture stirring in portland cement, dispersant, water-reducing agent, calcium hydroxide,
Stirred evenly in quartz sand and filler mixture, obtain powder material B；
3）Polymer emulsion, hydroxyethyl cellulose, defoamer and water are mixed in proportion, stir evenly to form liquid material A；
4）By liquid material A:Powder material B is 1 by weight：1 is mixed evenly, and obtains the painting of self-healing polymers cement water-proof
Material, is painted on concrete base layer.
By using above-mentioned technology, compared with prior art, beneficial effects of the present invention are as follows：
1）Coating bi-component is mixed and made into water-repellent paint by the present invention, adds water to be coated in concrete surface, in the paint solidification phase
Between because the water-absorbing resin inside quick solidifying is wrapped to form microcapsules by film-formable graft copolymer, graft copolymer and in addition
Active material be wrapped in a dormant state, have the state of water when surface is in, because the grafting as capsule wall material is total to
Polymers is porous mass, and water can enter in capsule, make internal absorbent material water swelling, rack capsule, water-absorbing resin at leisure
At once can drastically expansion rate up to 1000 times, can dead-end fracture surface immediately, its is easy for construction simple；In moist state
The active material of lower inside carries out the reaction generation thorough dead-end fracture of silicate crystalline, realizes leakage selfreparing；Thoroughly solve
The problem of cement mortar cracking leakage, carry out the trouble that back side carries out blocking construction after solving leakage, realize intelligence
The self-healing of change；
2）The present invention tempers toughness with gentleness by using the thought of self-regeneration, could be used that in the environment of alternation of wetting and drying, and
And still can work in the case where cracking repeatedly, can be fast to adjust the curing of coating by adjusting the hydration rate of cement
Spend, and its hardening time can control, i.e., changes portland cement into quick-hardening cement, it is possible to, it can also make in the case of leak stopping
With when this occurs again in crack, water absorbent polymer can react in time.And active materials can not be cracked still with Reusability
In a dormant state, with regard to that can play a role when to be cracked.It is great breakthrough in buildings waterproof theory.
Embodiment
The invention will be further described with reference to embodiments, but protection scope of the present invention is not limited to that：
Embodiment 1
Each group distribution ratio of the present invention is as follows：
With heavyweight percentage liquid material component A：
Polymer emulsion 75%
Hydroxyethyl cellulose 0.8%
Defoamer 4.2%
Water 20%
Percentage powder material B component by weight：
Portland cement 30%
Polyacrylate high water absorbency polymer 10%
Silicon dioxide powder 8%
Dispersant 1%
Water-reducing agent 1%
Ethylene methacrylic ether-copolymer-maleic anhydride 9.5%
Polyvinyl alcohol 0.5%
Calcium hydroxide 5%
Quartz sand 10%
Talcum powder 25%
Above-mentioned waterproof mortar preparation method is as follows：
1）The hydrolysate of ethylene methacrylic ether-copolymer-maleic anhydride disperses in 50 DEG C of water, adds polyvinyl alcohol stirring 2h,
And temperature is heightened to 70 DEG C, it is sufficiently stirred.Polyacrylate high water absorbency polymer, silicon dioxide powder are added into stirring sheet
Carve, that is, be cooled to 30 DEG C, filtered out powder with filter paper.Dry grinds；
2）With portland cement, dispersant（Fat alcohol polyethylene ether）, water-reducing agent（Melamine based water reducer）, calcium hydroxide,
Quartz sand, filler carry out be mixed 1 hour make its uniform.Form B component；
3）Polymer emulsion, hydroxyethyl cellulose, defoamer, water are mixed in proportion, stir evenly to form component A；
4）By A during use:B=1：1 is mixed evenly, and is painted on concrete base layer.
Physical property：Tensile strength（MPa） 1.5；
Elongation percentage（%）230
When the crack closure time 19 is small.
Embodiment 2
Each group distribution ratio of the present invention is as follows：
Polymer emulsion 78%
Hydroxyethyl cellulose 0.5%
Defoamer 4%
Water 17.5%
Percentage powder material B component by weight：
Portland cement 35%
Polyvinyl alcohol high water absorbency polymer 10%
Silicon dioxide powder 10%
Dispersant 1%
Water-reducing agent 1%
Diisobutyl thiocarbamate 9.4%
Polyvinyl alcohol 0.1
TDI 0.5%
Calcium hydroxide 3%
Quartz sand 10%
Talcum powder 20%
Above-mentioned waterproof mortar preparation method is as follows：
1）S- ethyls-N, N- diisobutyl thiocarbamate and TDI are dissolved in industrial naptha, stirred evenly.Add
Enter hydrolyzed pva thing to be thoroughly mixed.By water-absorbing resin（Polyvinyl alcohol salt water absorbent polymer）, silicon dioxide powder puts
Enter in agitated kettle, sprayed and stirred with solution, carry out microencapsulation；It is put into vacuum, vacuumizes dehydration, de-oiling.Again
Adding talcum powder not make surface toughness；
2）With portland cement, dispersant（Naphthalene sulfonic acid-formaldehyde condensation product）, water-reducing agent（Melamine based water reducer）, hydroxide
Calcium, quartz sand, filler carry out be mixed 1 hour make its uniform.Form B component；
3）Polymer emulsion, hydroxyethyl cellulose, defoamer, water are mixed in proportion, stir evenly to form component A；
4）By A during use:B=1：1 is mixed evenly, and is painted on concrete base layer.
Its physical property：Tensile strength（MPa） 1.8
Elongation percentage（%） 220
When the crack closure time 17 is small.
Claims (4)
1. self-healing polymers cement waterproof paint, which is dual-component coating, and component A is liquid material, and B component is powder, its
It is characterized in that：
Liquid material A is made of the component of percentage by weight：
Polymer emulsion 70-80% hydroxyethyl celluloses 0.5-1%
Defoamer 3--5% water surplus；
Powder material B is made of the component of percentage by weight：
Portland cement 20-35% high water absorbency polymers 5-15%
Silicon dioxide powder 3-10% dispersants 1-3%
Water-reducing agent 1-3% makees the polymer 5-15% of microcapsule wall material
Calcium hydroxide 3-5% quartz sands 10-30%
Filler surplus,
High water absorbency polymer uses polyvinyl alcohol, polyacrylate high water absorbency polymer and respective scion grafting acrylic acid
Class and the high water absorbency polymer one or more of which mixture of inorganic mineral scion grafting；The polymer for making microcapsule wall material is adopted
With one kind or two in ethylene methacrylic ether-copolymer-maleic anhydride, polyvinyl alcohol, diisobutyl thiocarbamate, two hydrocyanic esters
Kind composition, the preparation method of the self-healing polymers cement waterproof paint comprise the following steps：
1）The polymer for making microcapsule wall material is added in water or solvent, heating makes it thoroughly dissolve and carry out reactive grafting to be formed
Solution, then high water absorbency polymer, silicon dioxide powder are added, solution is filtered out after stirring, the high-hydroscopicity of solution parcel gathers
Compound, silicon dioxide powder are insoluble to carry out being dispersed into little particle, and cools down and vacuumize, and solvent is volatilized, and obtains mixing composite capsule；
2）By proportioning, by step 1）Obtain mixing composite capsule stirring in portland cement, dispersant, water-reducing agent, calcium hydroxide,
Stirred evenly in quartz sand and filler mixture, obtain powder material B；
3）Polymer emulsion, hydroxyethyl cellulose, defoamer and water are mixed in proportion, stir evenly to form liquid material A；
4）By liquid material A:Powder material B is 1 by weight：1 is mixed evenly, and obtains self-healing polymers cement waterproof paint, applies
Brush in concrete base layer.
2. self-healing polymers cement waterproof paint according to claim 1, it is characterised in that the filler in powder material B is cunning
One or two kinds of thing mixed above in mountain flour, activated Calcium carbonate, wollastonite in powder, bentonite, flake asbestos.
3. self-healing polymers cement waterproof paint according to claim 1, it is characterised in that the dispersant choosing in powder material B
From naphthalene sulfonic acid-formaldehyde condensation product, fat alcohol polyethylene ether or condensation compound of methyl naphthalene sulfonic acid and formaldehyde.
4. self-healing polymers cement waterproof paint according to claim 1, it is characterised in that the water-reducing agent choosing in powder material B
From lignosulfonates, melamine based water reducer or powder polycarboxylate.
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| CN106927763A (en) * | 2017-03-20 | 2017-07-07 | 江苏尼高科技有限公司 | Wall wire casing anticracking system and its construction method |
| CN109824302B (en) * | 2017-11-23 | 2022-08-30 | 中国石油化工股份有限公司 | Water plugging composition, water plugging agent and preparation method thereof |
| CN110255971A (en) * | 2019-06-19 | 2019-09-20 | 河北晨阳工贸集团有限公司 | A kind of aqueous terrace phase transformation epoxy resin mortar coating and preparation method thereof |
| CN111218179A (en) * | 2019-12-11 | 2020-06-02 | 湖南神州皓绿科技发展有限公司 | Waterproof coating and preparation method and application thereof |
| CN111502324A (en) * | 2020-04-29 | 2020-08-07 | 湖南先锋防水科技有限公司 | Repairing process for leakage between elevator shaft side wall and ground |
| CN111718145B (en) * | 2020-06-30 | 2021-03-30 | 重庆愈水通新型防水材料有限公司 | Admixture for improving compactness of concrete and processing technology and construction method thereof |
| CN114702281B (en) * | 2022-04-18 | 2023-07-14 | 浙江鲁班建材科技股份有限公司 | Loose-proof impervious self-repairing waterproof mortar and preparation method thereof |
| CN114873975B (en) * | 2022-06-13 | 2023-03-10 | 苏州顺林砂浆有限公司 | High-permeability resin mortar and preparation method thereof |
| CN115650671B (en) * | 2022-10-31 | 2023-04-14 | 辰龙新材料科技发展(山东)有限公司 | High-ductility white cement-based rapid closed spraying material and preparation method thereof |
| CN117659773B (en) * | 2023-12-06 | 2024-08-16 | 广州昊特建材有限公司 | Waterproof exterior wall paint and preparation method thereof |
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| CN1264602C (en) * | 2003-01-16 | 2006-07-19 | 大连理工大学 | High-hydroscopicity polymer resin microcapsule and its production process |
| CN101786822A (en) * | 2009-05-05 | 2010-07-28 | 施无我 | High-impervious microcrystal self-curing type cement additive |
| CN102226072A (en) * | 2011-05-06 | 2011-10-26 | 同济大学 | Preparation method of organic silicon microcapsule powder waterproof agent |
| CN102942345B (en) * | 2012-11-14 | 2014-03-12 | 苏州中材非金属矿工业设计研究院有限公司 | Waterproof material capable of continuously repairing concrete micro-crack as well as preparation process and construction method thereof |
| CN103113068A (en) * | 2013-03-15 | 2013-05-22 | 立邦涂料(成都)有限公司 | Environment-friendly strengthened flexible waterproof paint and preparation method thereof |
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Inventor after: Xiang Zengye Inventor after: Yang Yang Inventor after: Xiang Xiaorui Inventor after: Xu Danyang Inventor after: Zhou Zhenzhe Inventor after: Wei Hongchao Inventor before: Yang Yang Inventor before: Xiang Xiaorui Inventor before: Zhou Zhenzhe Inventor before: Wei Hongchao |
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Denomination of invention: Self repairing polymer cement waterproof coating and its preparation method Effective date of registration: 20221128 Granted publication date: 20180511 Pledgee: Hangzhou branch of Zhejiang Tailong Commercial Bank Co.,Ltd. Pledgor: ZHEJIANG LUBAN BUILDING WATERPROOF Co.,Ltd. Registration number: Y2022330003255 |
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