CN105199549A - Composite epoxy resin waterproof coating - Google Patents
Composite epoxy resin waterproof coating Download PDFInfo
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- CN105199549A CN105199549A CN201510725507.8A CN201510725507A CN105199549A CN 105199549 A CN105199549 A CN 105199549A CN 201510725507 A CN201510725507 A CN 201510725507A CN 105199549 A CN105199549 A CN 105199549A
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Abstract
The invention discloses a composite epoxy resin waterproof coating. The waterproof coating comprises a component A and a component B, wherein the component A comprises raw materials in parts by weight as follows: 90-100 parts of an epoxy modified polymer, 10-18 parts of a reactive diluent, 3-7 parts of sodium silicate, 1-5 parts of methyl sodium silicate, 2-5 parts of a surfactant, 1-3 parts of an antifoaming agent and 300-400 parts of functional filler; the component B comprises raw materials in parts by weight as follows: 20-28 parts of a modified curing agent, 1-4 parts of a crosslinking agent and 1-3 parts of an accelerator. The composite epoxy resin waterproof coating has the advantages of reasonable formula, simplicity in construction, high aging resistance, good combination property, long service life and applicability to water-proofing of roofs, basements, bathrooms and the like.
Description
Technical field
The present invention relates to a kind of composite epoxy resin waterproof paint, belong to concrete construction water-proof material technical field.
Background technology
Modern building is all generally adopt concrete structure when building, and this is because concrete structure has following several advantage: good integrity, placing can become as a whole; Normability is good, placing can become the structure of different shape and size; Weather resistance and resistivity against fire good, extraneous factor long-term damage can be resisted; Construction costs and maintenance cost low, architecture construction cost can be reduced.Therefore, concrete structure is posted with very high great expectations by people, but have ignored the shortcoming of himself.In fact, concrete is a kind of heterogeneous compound hard brittle material, and when concrete pulling stress is greater than its tensile strength, or when Analysis of Concrete Tensile distortion is greater than its ultimate elongation, concrete will produce crack, thus causes building easy seepage.Seepage is the most common a kind of common fault of concrete structure, especially in roofing, vault and toilet very easily seepage.Seepage not only has a strong impact on the basic using function of building, and brings very large inconvenience to the life of people, even likely causes great loss.Therefore, impervious waterproof is one of concrete construction problem that need solve.
At present, the coiled material on market and coating are the maximum concrete construction water-proof materials of people's consumption.Though coiled material can play certain waterproof effect, also there are some problems in it: coiled material poor toughness, seam crossing imprecision, easy seepage.In order to overcome the deficiency of coiled material, people have invented its substitute--coating.This is owing to brushing certain thickness waterproof paint at concrete surface, can block concrete pore, bottle up the erosion of moisture, thus improve concrete endurance quality.Conventional waterproof paint has epoxy resin, urethane and acrylic resin paint etc.Wherein, epoxypaint a kind ofly builds conventional coating, and this gives the credit to it to have good protection physicochemical property, adhesive property and very comprehensive chemical resistance.
Epoxypaint mainly refers to bisphenol A epoxide resin and modified amine curing agent for main film forming substance, wherein containing a certain amount of reactive thinner, auxiliary agent, filler, promotor, coupling agent.Epoxypaint is be coated in concrete surface in use, and in the middle of the process of its solidification, part base-material can react each other, generates and has the cancellated induration of 3 D stereo, plays waterproof and stops effect that external corrosion environments destroys; Part base-material can infiltrate inside concrete, makes interface form a firmly entirety, to reach fabulous cohesive strength.But the weathering resistance difference of epoxypaint causes cracking, limits the application of epoxypaint to a certain extent.In order to solve the problem, people have carried out a lot of research, if Chinese patent application publication No. is the epoxypaint that CN103849296A discloses a kind of name and is called " a kind of elastic epoxy resin waterproof paint and preparation method thereof ", it forms by comprising A, B two components, wherein contains epoxy resin 65 ~ 85 parts, reactive thinner 5 ~ 10 parts, reactive plasticizer 5 ~ 10 parts, functional aid 5 ~ 20 parts, functional filler 280 ~ 500 parts in component A; Containing modified amine curing agent 20 ~ 30 parts, coupling agent 1 ~ 2 part, promotor 1 ~ 2 part in B component.Although this epoxy resin waterproof coating overcomes cement matrix surface mild alkaline conditions, directly can overcome cement matrix surface 20% distortion, problems of crack in cement matrix surface strong bond, but the ageing-resistant ability of its film, cause time limit of service too short, thus limit its range of application in Concrete Anti Hydraulic Projects.Therefore, develop a kind of new epoxy resin waterproof coating and will play very important effect to concrete construction antiseep.
Summary of the invention
For the ageing-resistant ability of above-mentioned prior art epoxy resin waterproof paint film and the technical problem causing work-ing life short, technical problem to be solved by this invention proposes a kind of over-all properties well, and the epoxy resin waterproof coating that life time is long.
The present invention for the taked technical scheme that solves the problem is:
A kind of composite epoxy resin waterproof paint, comprise A, B two components, wherein, component A comprises the raw material of following weight: 90 ~ 100 parts, epoxide modified polymkeric substance, reactive thinner 10 ~ 18 parts, water glass 3 ~ 7 parts, sodium methyl silicate 1 ~ 5 part, 2 ~ 5 parts, tensio-active agent, defoamer 1 ~ 3 part, function stopping composition 300 ~ 400 parts; B component comprises the raw material of following weight: modified firming agent 20 ~ 28 parts, linking agent 1 ~ 4 part, promotor 1 ~ 3 part.
Described epoxide modified polymkeric substance is 20 ~ 22 parts of polyurethane modified epoxy resins, 22 ~ 25 parts of acrylic modified epoxy resins, 24 ~ 26 parts of modifying epoxy resin by organosilicon, and 24 ~ 27 parts of bisphenol A epoxide resins are composited.
Described reactive thinner is 5 ~ 9 parts of propylene glycol monomethyl ethers, the mixture of 5 ~ 9 parts of octyl glycidyl ether.
Described functional stuffing is 250 ~ 300 parts of talcum powder, 20 ~ 40 parts of glass fibre, 20 ~ 40 parts of silica powders, 5 ~ 10 parts of nano silicons, the mixture of 5 ~ 10 parts of carbon nanotubes.
Described modified firming agent is 10 ~ 14 parts of modification triethylene tetramines, the mixture of 10 ~ 14 parts of modification quadrols.
Preferably, its weight is as follows:
Component A comprises the raw material of following weight: polyurethane modified epoxy resin 21 parts, acrylic modified epoxy resin 24 parts, modifying epoxy resin by organosilicon 25 parts, bisphenol A epoxide resin 26 parts, propylene glycol monomethyl ether 7 parts, octyl glycidyl ether 7 parts, water glass 5 parts, sodium methyl silicate 3 parts, 4 parts, tensio-active agent, defoamer 2 parts, talcum powder 275 parts, 30 parts, glass fibre, silica powder 30 parts, nano silicon 7 parts, carbon nanotube 8 parts; B component comprises the raw material of following weight: modification triethylene tetramine 12 parts, modification quadrol 12 parts, linking agent 3 parts, promotor 2 parts.
Preferably, described epoxy resin is bisphenol A epoxide resin; Described silicone resin is polyorganosiloxane resin; Described tensio-active agent is Sodium dodecylbenzene sulfonate; Described defoamer is dimethyl silicone oil.
Preferably, described linking agent is trimethylolpropane tris-(3-ethyleneimine base)-propionic ester; Described promotor is sodium ethylate.
In the present invention, the film obtained by epoxy resin has the good shielding to water vapour and oxygen, and sticking power is good, shrinking percentage is low, but easily efflorescence, weathering resistance are poor; Polyurethane coating film has the advantages such as good wear resistance, erosion resistance, chemical-resistant, hardness are large, snappiness; Acrylate copolymer protect light unfading and ageing-resistant performance good, but film compactness is poor, bad to the shielding of water vapour and oxygen; Heat resistance of organic silicon resin, good waterproof performance, also can reduce internal stress during resin film forming.Therefore, adopt urethane, vinylformic acid, organosilicon etc. to carry out modification compound to epoxy resin, improve the water resistance of coating, ageing-resistant ability and chemical-resistant, and then obtain the coating of high comprehensive performance.Meanwhile, also add a certain amount of epoxy resin, make coating retain the original advantage of epoxy resin, promote the performance of coating widely.
Propylene glycol monomethyl ether, octyl glycidyl ether can not only reduce system viscosity, can also participate in the curing reaction of epoxy resin, becomes a part for the cross-linked network structure of epoxy resin cured product, and maintains the performance of cured product.Propylene glycol monomethyl ether has faint ether taste, but does not have strong and stimulating smell, increases the safety coefficient of coating.Epoxy-terminated with high reactivity in octyl glycidyl ether molecule, and there is the features such as toxicity is low, viscosity is low, flexible, be a kind of good epoxy active diluent.
Water glass can penetrate into concrete pore, forms Silica hydrogel, improves concrete degree of compactness and impermeability; Sodium methyl silicate has very low surface tension, can distribute equably and penetrate on concrete micro-pore wall, form hydrophobic membrane and its capillary channel can not be closed, can effectively stop moisture to invade, but do not hinder aqueous vapor to spread from inside to outside, make coating have good ventilation property.
Described tensio-active agent is Sodium dodecylbenzene sulfonate, can improvement of production process, improve execution conditions, strengthen the wetting of coating system and stabilization, and then reduce costs; Described defoamer is dimethyl silicone oil, can suppress the bubble in coating, and then improves the barrier propterty of coating film.
Talcum powder is a kind of color stuffing, and its main component is the Magnesium Silicate q-agent of sheet structure, can reduce the crack sensitivity of coating, improves overall performance and the weathering resistance of film, also can improve the associativity with substrate.In addition, talcum powder can also improve the viscosity of coating and make it have thixotropy, reduces the Subsidence trend of color stuffing, thus reduces the consumption of thickening material.
Glass fibre is filled in coating, can strengthen toughness and the shock-resistance of coating; Silica powder is filled in coating, can strengthen the hardness of coating and reduce shrinking percentage.
Nano-silica filled at coating, reticulated structure can be formed fast, improve the ageing-resistant ability of coating, thus extend the life-span of coating.In addition, nano silicon and epoxide modified polymkeric substance carry out composite modified, can improve the water resistance of described waterproof paint, mechanical property, anti-uv-ray etc.And carbon nano-tube filled at coating, then the toughness of coating, thermal conductivity and shock strength can be made to be improved, particularly the improvement of thermal conductivity, effectively can improve the ageing-resistant ability of coating.
Modification triethylene tetramine, modification quadrol can make epoxy resin cross-linking reaction reticulate the giant molecule of structure, improve its performance.
Described linking agent is trimethylolpropane tris-(3-ethyleneimine base)-propionic ester, can improve water-resistant coating, chemical-resistant and temperature tolerance, rub resistance, and improves the sticking power to concrete surface; Described promotor is sodium ethylate, can improve speed of reaction between coating raw material, shortens set time, improves the performance of coating.
Composite epoxy resin waterproof paint of the present invention in use, first A, B component raw material are fully uniformly mixed respectively, then mixture A is added in mixture B and stir, obtain mixture AB, last direct spraying or brushing mixture AB are on the surface needing waterproof thing, and overcoating brush of laying equal stress on is to certain thickness.
The invention has the beneficial effects as follows:
The present invention is the composite epoxy resin waterproof paint of a kind of epoxide modified polymkeric substance, reactive thinner, modified firming agent and various auxiliary agent composition.Compared with prior art, the present invention has following several advantage:
First, present invention employs urethane, vinylformic acid and organosilicon etc. and modification compound is carried out to epoxy resin, overcome the defect existing for single epoxy resin waterproof coating, improve the water resistance of coating, ageing-resistant ability and chemical-resistant, and then obtain the coating of high comprehensive performance;
Secondly, the present invention adds epoxy resin again on modification basis, takes full advantage of epoxy resin film, thus improves the thickness of film, improves the water resistance of film and ageing-resistant ability;
Again, coating is coated with membranous type waterproof, and sodium methyl silicate is hydrophobic type waterproof, thus form film-hydrophobic type waterproof, greatly improves water resistance and the endurance quality of coating; Simultaneously also in conjunction with inorganic-organic silicon characteristic, improve water resistance and the endurance quality of coating, and then extend the life-span of coating;
Finally, the present invention also utilizes nano-silica filled at coating, can form cancellated characteristic fast, improves the ageing-resistant ability of coating, thus extends the life-span of coating.Moreover nano silicon can also carry out composite modified with epoxide modified polymkeric substance, can improve the water resistance of described waterproof paint, mechanical property, anti-uv-ray etc.In addition, carbon nano-tube filled at coating, then the toughness of coating, thermal conductivity and shock strength can be made to be improved, thus to improve the ageing-resistant ability of coating.
Waterproof paint disclosed in this invention have formula rationally, construct that simple, ageing-resistant ability is strong, over-all properties good, and life time is long, can be applicable to the waterproof of roofing, vault and toilet etc.
Embodiment
Below in conjunction with embodiment, the invention will be further described:
Composite epoxy resin waterproof paint of the present invention in use, first A, B component raw material are fully uniformly mixed respectively, then mixture A is added in mixture B and stir, obtain mixture AB, last direct spraying or brushing mixture AB are on the surface needing waterproof thing, and overcoating brush of laying equal stress on is to 2mm thickness.
Embodiment 1
A kind of composite epoxy resin waterproof paint, comprise A, B two components, wherein, component A comprises the raw material of following weight: polyurethane modified epoxy resin 21 parts, acrylic modified epoxy resin 24 parts, modifying epoxy resin by organosilicon 25 parts, bisphenol A epoxide resin 26 parts, propylene glycol monomethyl ether 7 parts, octyl glycidyl ether 7 parts, water glass 5 parts, sodium methyl silicate 3 parts, Sodium dodecylbenzene sulfonate 4 parts, dimethyl silicone oil 2 parts, talcum powder 275 parts, 30 parts, glass fibre, silica powder 30 parts, nano silicon 7 parts, carbon nanotube 8 parts; B component comprises the raw material of following weight: modification triethylene tetramine 12 parts, modification quadrol 12 parts, trimethylolpropane tris-(3-ethyleneimine base)-propionic ester 3 parts, sodium ethylate 2 parts.
Embodiment 2
A kind of composite epoxy resin waterproof paint, comprise A, B two components, wherein, component A comprises the raw material of following weight: polyurethane modified epoxy resin 20 parts, acrylic modified epoxy resin 22 parts, modifying epoxy resin by organosilicon 24 parts, bisphenol A epoxide resin 24 parts, propylene glycol monomethyl ether 5 parts, octyl glycidyl ether 5 parts, water glass 3 parts, sodium methyl silicate 1 part, Sodium dodecylbenzene sulfonate 2 parts, dimethyl silicone oil 1 part, talcum powder 250 parts, 20 parts, glass fibre, silica powder 20 parts, nano silicon 5 parts, carbon nanotube 5 parts; B component comprises the raw material of following weight: modification triethylene tetramine 10 parts, modification quadrol 10 parts, trimethylolpropane tris-(3-ethyleneimine base)-propionic ester 1 part, sodium ethylate 1 part.
Embodiment 3
A kind of composite epoxy resin waterproof paint, comprise A, B two components, wherein, component A comprises the raw material of following weight: polyurethane modified epoxy resin 22 parts, acrylic modified epoxy resin 25 parts, modifying epoxy resin by organosilicon 26 parts, bisphenol A epoxide resin 27 parts, propylene glycol monomethyl ether 9 parts, octyl glycidyl ether 9 parts, water glass 7 parts, sodium methyl silicate 5 parts, Sodium dodecylbenzene sulfonate 5 parts, dimethyl silicone oil 3 parts, talcum powder 300 parts, 40 parts, glass fibre, silica powder 40 parts, nano silicon 10 parts, carbon nanotube 10 parts; B component comprises the raw material of following weight: modification triethylene tetramine 14 parts, modification quadrol 14 parts, trimethylolpropane tris-(3-ethyleneimine base)-propionic ester 4 parts, sodium ethylate 3 parts.
Embodiment 4
A kind of composite epoxy resin waterproof paint, comprise A, B two components, wherein, component A comprises the raw material of following weight: polyurethane modified epoxy resin 21 parts, acrylic modified epoxy resin 23 parts, modifying epoxy resin by organosilicon 25 parts, bisphenol A epoxide resin 25 parts, propylene glycol monomethyl ether 6 parts, octyl glycidyl ether 6 parts, water glass 4 parts, sodium methyl silicate 2 parts, Sodium dodecylbenzene sulfonate 3 parts, dimethyl silicone oil 2 parts, talcum powder 270 parts, 25 parts, glass fibre, silica powder 25 parts, nano silicon 6 parts, carbon nanotube 6 parts; B component comprises the raw material of following weight: modification triethylene tetramine 11 parts, modification quadrol 11 parts, trimethylolpropane tris-(3-ethyleneimine base)-propionic ester 2 parts, sodium ethylate 2 parts.
Embodiment 5
A kind of composite epoxy resin waterproof paint, comprise A, B two components, wherein, component A comprises the raw material of following weight: polyurethane modified epoxy resin 22 parts, acrylic modified epoxy resin 24 parts, modifying epoxy resin by organosilicon 26 parts, bisphenol A epoxide resin 26 parts, propylene glycol monomethyl ether 8 parts, octyl glycidyl ether 8 parts, water glass 6 parts, sodium methyl silicate 4 parts, Sodium dodecylbenzene sulfonate 4 parts, dimethyl silicone oil 3 parts, talcum powder 280 parts, 35 parts, glass fibre, silica powder 35 parts, nano silicon 9 parts, carbon nanotube 9 parts; B component comprises the raw material of following weight: modification triethylene tetramine 13 parts, modification quadrol 13 parts, trimethylolpropane tris-(3-ethyleneimine base)-propionic ester 3 parts, sodium ethylate 3 parts.
The performance test results of the composite epoxy resin waterproof paint that table 1 is made for embodiment 1 ~ 5
Certainly, just the preferred embodiments of the disclosure is described in detail above, not limits practical range of the present invention with this, and all equivalence changes done according to principle of the present invention, structure and structure, all should be covered by protection scope of the present invention.
Claims (6)
1. a composite epoxy resin waterproof paint, it is characterized in that: be made up of A, B two components, wherein component A comprises the raw material of following weight: 90 ~ 100 parts, epoxide modified polymkeric substance, reactive thinner 10 ~ 18 parts, water glass 3 ~ 7 parts, sodium methyl silicate 1 ~ 5 part, 2 ~ 5 parts, tensio-active agent, defoamer 1 ~ 3 part, function stopping composition 300 ~ 400 parts; B component comprises the raw material of following weight: modified firming agent 20 ~ 28 parts, linking agent 1 ~ 4 part, promotor 1 ~ 3 part.
2. composite epoxy resin waterproof paint according to claim 1, it is characterized in that: described epoxide modified polymkeric substance is 20 ~ 22 parts of polyurethane modified epoxy resins, 22 ~ 25 parts of acrylic modified epoxy resins, 24 ~ 26 parts of modifying epoxy resin by organosilicon, 24 ~ 27 parts of bisphenol A epoxide resins are composited.
3. composite epoxy resin waterproof paint according to claim 1, is characterized in that: described reactive thinner is 5 ~ 9 parts of propylene glycol monomethyl ethers, the mixture of 5 ~ 9 parts of octyl glycidyl ether.
4. composite epoxy resin waterproof paint according to claim 1, it is characterized in that: described functional stuffing is 250 ~ 300 parts of talcum powder, 20 ~ 40 parts of glass fibre, 20 ~ 40 parts of silica powders, 5 ~ 10 parts of nano silicons, the mixture of 5 ~ 10 parts of carbon nanotubes.
5. composite epoxy resin waterproof paint according to claim 1, is characterized in that: described modified firming agent is 10 ~ 14 parts of modification triethylene tetramines, the mixture of 10 ~ 14 parts of modification quadrols.
6. composite epoxy resin waterproof paint according to claim 1, it is characterized in that: by A, B two component compositions, wherein component A comprises the raw material of following weight: polyurethane modified epoxy resin 21 parts, acrylic modified epoxy resin 24 parts, modifying epoxy resin by organosilicon 25 parts, bisphenol A epoxide resin 26 parts, propylene glycol monomethyl ether 7 parts, octyl glycidyl ether 7 parts, water glass 5 parts, sodium methyl silicate 3 parts, 4 parts, tensio-active agent, defoamer 2 parts, talcum powder 275 parts, 30 parts, glass fibre, silica powder 30 parts, nano silicon 7 parts, carbon nanotube 8 parts, B component comprises the raw material of following weight: modification triethylene tetramine 12 parts, modification quadrol 12 parts, linking agent 3 parts, promotor 2 parts.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510725507.8A CN105199549A (en) | 2015-10-30 | 2015-10-30 | Composite epoxy resin waterproof coating |
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| CN201510725507.8A CN105199549A (en) | 2015-10-30 | 2015-10-30 | Composite epoxy resin waterproof coating |
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| CN105199549A true CN105199549A (en) | 2015-12-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569093A (en) * | 2016-01-19 | 2016-05-11 | 王效禹 | Foundation seamless corrosion-resistant waterproof construction process |
| CN108587385A (en) * | 2018-05-30 | 2018-09-28 | 安徽润晟建设有限公司 | A kind of impact resistance waterproof epoxy coating |
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| CN102993898A (en) * | 2012-09-29 | 2013-03-27 | 北京东方雨虹防水技术股份有限公司 | Epoxy protective coating and preparation method for same |
| CN103849296A (en) * | 2014-02-28 | 2014-06-11 | 北京东方雨虹防水技术股份有限公司 | Elastic epoxy resin waterproof coating and preparation method thereof |
| CN104449240A (en) * | 2014-12-19 | 2015-03-25 | 徐州卧牛山新型防水材料有限公司 | High performance epoxy resin waterproof coating |
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2015
- 2015-10-30 CN CN201510725507.8A patent/CN105199549A/en active Pending
Patent Citations (4)
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| CN101358099A (en) * | 2008-09-09 | 2009-02-04 | 北京市射线应用研究中心 | Epoxy static conducting anti-corrosive paint |
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| CN103849296A (en) * | 2014-02-28 | 2014-06-11 | 北京东方雨虹防水技术股份有限公司 | Elastic epoxy resin waterproof coating and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569093A (en) * | 2016-01-19 | 2016-05-11 | 王效禹 | Foundation seamless corrosion-resistant waterproof construction process |
| CN108587385A (en) * | 2018-05-30 | 2018-09-28 | 安徽润晟建设有限公司 | A kind of impact resistance waterproof epoxy coating |
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