CN104927565A - Waterproof solvent-free epoxy resin coating in drinking water project and construction method thereof - Google Patents
Waterproof solvent-free epoxy resin coating in drinking water project and construction method thereof Download PDFInfo
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Abstract
The invention provides a waterproof solvent-free epoxy resin coating in drinking water project. The waterproof solvent-free epoxy resin coating comprises a component A and a component B, wherein the component A comprises epoxy resin, an epoxy active diluent, an additive, a filler and a pigment; the component B comprises modified polyamine; the solvent-free epoxy resin coating comprises the following materials in parts by weight: 80-100 parts of epoxy resin, 10-20 parts of an epoxy active diluent, 3-10 parts of an additive, 55-155 parts of a filler, 0.5-3 parts of a pigment and 80-120 parts of modified polyamine. The epoxy active diluent is selected from at least one of dodecyl glycidyl ether, 1,4-butanediol diglycidyl ether and ethylene glycol diglycidyl ether; the additive comprise at least one of a leveling agent, a rheological additive, a dispersing agent, a substrate wetting agent, a defoaming agent and an ultraviolet ray absorbent; the filler comprises titanium dioxide, talcum powder, wet sericite powder, wollastonite powder and ceramic powder.
Description
Technical field
The present invention relates to field of material technology, particularly relate to waterproof type solventless epoxy resin coating in a kind of tap water project, and the constructional method of waterproof type solventless epoxy resin coating in a kind of tap water project.
Background technology
Current tap water pond waterproof construction mode has several as follows: wherein one is that SBS coiled material and protective layer combine, SBS coiled material of first constructing, protective layer of constructing on coiled material further; One is polymer cement mortar, the water-proof material that the water-proof material also having polyurethane coating film and protective layer to combine, the water-proof material of cement-base infiltration crystallization and EPDM are combined with non-woven fabrics.
At present, the problem that above-mentioned water-proof material often runs into is:
1, SBS coiled material construction time, itself can not basal plane concrete closely connected, moreover the room, junction surface between coiled material is weak link, careless slightly meeting cause whole water-proof system failure; Secondly, moisture is once infiltration breaks through coating mortar, and after being rubber asphalt waterproofing coiled material Long Term Contact with sbs coiled material, may pollute drinking-water quality, therefore need very thick coating mortar, protective layer needs maintenance about 2 weeks.Not only increase executive cost, also delay the construction period.
2, polyurethane coating film is much containing organic solvent, in long period of soaking water, may impact water quality.
3, cement-base infiltration crystallization, curing time is long, delays the duration.
4, EPDM performance is good, but uneconomical, and executive cost is high.
Summary of the invention
Technical problem to be solved by this invention is to provide the constructional method of waterproof type solventless epoxy resin coating in waterproof type solventless epoxy resin coating in a kind of tap water project and a kind of tap water project, solves the problems of the technologies described above with all or part of.
In order to solve the problem, the invention discloses waterproof type solventless epoxy resin coating in a kind of tap water project, described solventless epoxy resin coating comprises component A and B component; Described component A comprises epoxy resin, epoxy active diluent, additive, filler and pigment;
Described B component comprises modified multicomponent amine;
In described solventless epoxy resin coating, the ratio of each material is: described epoxy resin is 80 ~ 100 weight parts, described epoxy active diluent is 10 ~ 20 weight parts, described additive is 3 ~ 10 weight parts, described filler is 55 ~ 155 weight parts, described pigment 0.5 ~ 3 weight part, described modified multicomponent amine is 80 ~ 120 weight parts;
Described epoxy active diluent is at least one in lauryl diglycidyl ether, BDDE, ethylene glycol diglycidylether;
Described additive comprises at least one in flow agent, auxiliary rheological agents, dispersion agent, ground wetting agent, defoamer and UV light absorber;
In described additive, the ratio of each material is: described flow agent is 0.5 ~ 2 weight part, described auxiliary rheological agents is 1 ~ 6 weight part, described dispersion agent is 0.5 ~ 3 weight part, described ground wetting agent is 0.5 ~ 3 weight part, described defoamer is 0.3 ~ 3 weight part, and described UV light absorber is 1 ~ 3 weight part;
Described filler comprises titanium dioxide, talcum powder, wet method sericite in powder, wollastonite powder and ceramics powder;
In described filler, the ratio of each material is described titanium dioxide is 8 ~ 15 weight parts, and described talcum powder is 30 ~ 60 weight parts, and described wet method sericite in powder is 15 ~ 30 weight parts, and described wollastonite powder is 15 ~ 30 weight parts, and described ceramics powder is 15 ~ 2 weight parts.
Preferably, described epoxy resin is the one of bisphenol A type epoxy resin, polyurethane modified epoxy resin and rubber modified epoxy resin or two kinds.
Preferably, described modified multicomponent amine is one or several of modified aliphatic polyamine, modified polyamide polyamine and modified alliphatic polyamine.
Preferably, described titanium dioxide is Rutile type Titanium Dioxide; Described wollastonite powder is needle shape wollastonite powder.
Preferably, described flow agent is one in polyacrylic ester and organopolysiloxane or two kinds;
Described auxiliary rheological agents is meteorological silicon-dioxide, N-Methyl pyrrolidone, one or several in hydrogenated castor wet goods.
Preferably, described dispersion agent is organosilicon wetting dispersing agent;
Described ground wetting agent is silicone surfactant.
Preferably, described dispersion agent is byk220s type organosilicon wetting dispersing agent;
Described ground wetting agent is byk347 type silicone surfactant.
Preferably, described defoamer is silicone antifoam agent or mineral oil antifoam agent.
Preferably, described sun-screening agent is hindered amine as light stabilizer or the hydrophilic 2-(liquid mixture of 2-hydroxyphenyl) – benzotriazole UV absorbers and hindered amine as light stabilizer.
Present invention also offers a kind of constructional method of solventless epoxy resin coating as described above, comprising:
Described component A is mixed with described B component and obtains described solventless epoxy resin coating;
On the formation level of tap water project, adopt brush, the mode of roller coating or Airless spraying constructs described solventless epoxy resin coating.
Compared with prior art, the present invention includes following advantage:
The invention provides a kind of solventless epoxy resin coating, as water-proof coating, component A and B component can be comprised; Described component A comprises epoxy resin, epoxy active diluent, additive, filler and pigment; Described B component comprises modified multicomponent amine; In described solventless epoxy resin coating, the ratio of each material is, described epoxy resin is 80 ~ 100 weight parts, described epoxy active diluent is 10 ~ 20 weight parts, described additive is 3 ~ 10 weight parts, described filler is 55 ~ 155 weight parts, described pigment 0.5 ~ 3 weight part, described modified multicomponent amine is 80 ~ 120 weight parts.
Compared to epoxypaint in the past, owing to adopting polyamine in solidifying agent, after film-forming, still there is free amino group in macromole end, free amino group may proton in Bound moisture or hydrated cation cause free amino group to be shed in tap water, has injury to human body.Therefore adopt polyamine in solidifying agent in the past, can not be used for the occasion of tap water, the application is by changing solidifying agent, and adopt modified multicomponent amine to replace polyamine, the macromole end free amino content after film-forming reduces.Even if Long Term Contact tap water, the probability of injury is had also can greatly to reduce to human body.Therefore this coating can be constructed in tap water project, directly can contact tap water.
And, the thinner that conventional epoxies coating adopts is as dimethylbenzene, acetone etc., after film forming solidification, still residual diluent is had in film, be applied to tap water project can precipitate in tap water, injury is had to health, and epoxy resin of the present invention thinner used is reactive thinner is lauryl diglycidyl ether, 1, 4-butanediol diglycidyl ether, at least one in ethylene glycol diglycidylether, all curing reaction can be participated in, then can avoid this problem, that can play thinner falls low viscous effect simultaneously, be applied to tap water project very safe.
Tradition anti-corrosive type epoxypaint is used for iron and steel basal plane, common filler has aluminum phosphate, the antirust filler such as iron mica, Long Term Contact tap water, water quality may be affected, the present invention is studied by long-term experiment, adopts a certain proportion of titanium dioxide, talcum powder, wet method sericite in powder, wollastonite powder and ceramics powder to substitute above-mentioned filler, coating can be avoided the impact of water quality.Further, the various compositions in traditional anti-corrosive type epoxypaint are for the research and development of iron and steel basal plane, and cost is higher and be not suitable for concrete surface, coating of the present invention, be applicable to various basal plane: iron and steel basal plane, concrete surface, non-woven fabrics basal plane or fluid rubber basal plane.Wherein, talcum powder plays enhancement, makes film forming more be added with intensity; Wet method sericite in powder can be enhanced to film toughness, and the anti-permeability of film forming is strengthened, protection against corrosion, film forming is hidden and shielding efficiency higher; Wollastonite powder preferably adopts needle shape wollastonite powder, can strengthen product weathering resistance, and can reduce film crackle.
Further, in the embodiment of the present invention, titanium dioxide preferably adopts Rutile type Titanium Dioxide, and one of effect is used to play the effect of brightening, and two of effect also can absorb ultraviolet, and in protection film forming, rest part is not by ultraviolet damage.
The epoxy resin of the embodiment of the present invention can adopt bisphenol A type epoxy resin, and film forming is harder, if increase polyurethane modified epoxy resin or rubber modified epoxy resin, plays toughness reinforcing effect, avoids the problem of easy embrittlement.Through actual verification, the solventless epoxy resin coating of the embodiment of the present invention directly can contact tap water, and its security meets the hygienic requirements of soaking water in Ministry of Health's " Drinking Water transmission & distribution wetting system and protective material safety evaluation specify " about protective material; Not needing construction in layer when constructing, can construct for one time, save the duration; Further, construction is protective layer not, saves cost, can also surface aesthetic.
Accompanying drawing explanation
Fig. 1 is the schema of the constructional method of waterproof type solventless epoxy resin coating in a kind of tap water project described in the embodiment of the present invention.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, and below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Be described in detail below by the realization flow of embodiment to the method for the invention.
The invention provides waterproof type solventless epoxy resin coating in a kind of tap water project, described solventless epoxy resin coating comprises component A and B component.
Wherein, described component A comprises epoxy resin, epoxy active diluent, additive, filler and pigment; Described B component comprises modified multicomponent amine.
Concrete, in described solventless epoxy resin coating, the ratio of each material is, described epoxy resin is 80 ~ 100 weight parts, described epoxy active diluent is 10 ~ 20 weight parts, described additive is 3 ~ 10 weight parts, described filler is 55 ~ 155 weight parts, and described pigment 0.5 ~ 3 weight part, described modified multicomponent amine is 80 ~ 120 weight parts.
Compared to epoxypaint in the past, owing to adopting polyamine in solidifying agent, after film-forming, still there is free amino group in macromole end, free amino group may proton in Bound moisture or hydrated cation, free amino group is shed in tap water, and amino is strong basicity group, very large to human injury.Therefore adopting polyamine in solidifying agent in the past, its use range is comparatively limited to, and the application is by changing solidifying agent, and adopt modified multicomponent amine to replace polyamine, the macromole end free amino content after film-forming reduces.Even if Long Term Contact tap water, the probability of injury is had also can greatly to reduce to human body.Therefore this coating can be constructed in tap water project, directly can contact tap water.The thinner that conventional epoxies coating adopts is as dimethylbenzene, acetone etc., although after film forming solidification, thinner can volatilize, but still there is residual diluent in film, after Long Term Contact tap water, have impact to water quality, be applied to tap water project can precipitate in tap water, have injury to health.Epoxy resin of the present invention thinner used is reactive thinner is lauryl diglycidyl ether, 1, at least one in 4-butanediol diglycidyl ether, ethylene glycol diglycidylether, curing reaction can be participated in, then can avoid this problem, that can play thinner falls low viscous effect simultaneously, is applied to tap water project very safe.
Wherein, described additive comprises flow agent, auxiliary rheological agents, dispersion agent, ground wetting agent, defoamer and UV light absorber.
Wherein, in described additive, the ratio of each material is flow agent is 0.5 ~ 2 weight part, and auxiliary rheological agents is 1 ~ 6 weight part, dispersion agent is 0.5 ~ 3 weight part, ground wetting agent is 0.5 ~ 3 weight part, and defoamer is 0.3 ~ 3 weight part, and UV light absorber is 1 ~ 3 weight part.
Tradition anti-corrosive type epoxypaint is used for iron and steel basal plane, common filler has aluminum phosphate, the antirust filler such as iron mica, Long Term Contact tap water, may affect water quality, the present invention is studied by long-term experiment, removes these fillers, adopt a certain proportion of titanium dioxide, talcum powder, wet method sericite in powder, wollastonite powder and ceramics powder to substitute above-mentioned filler, coating can be avoided the impact of water quality.
Further, the various compositions in traditional anti-corrosive type epoxypaint are for the research and development of iron and steel basal plane, and cost is higher and be not suitable for concrete surface, and coating of the present invention, be applicable to multiple basal plane: iron and steel basal plane, concrete surface, non-woven fabrics basal plane or fluid rubber basal plane.
Wherein, talcum powder plays strengthening action, makes film forming more be added with intensity; Wet method sericite in powder not only can be enhanced to film toughness, and the anti-permeability of film forming is strengthened, protection against corrosion, film forming is hidden and shielding efficiency higher; Wollastonite powder preferably adopts needle shape wollastonite powder, can strengthen product weathering resistance, and can reduce film crackle.Wherein, in described filler, the ratio of each material is titanium dioxide is 8 ~ 15 weight parts, and talcum powder is 30 ~ 60 weight parts, and wet method sericite in powder is 15 ~ 30 weight parts, and wollastonite powder is 15 ~ 30 weight parts, and ceramics powder is 15 ~ 2 weight parts.
Through actual verification, adopt the solventless epoxy resin coating of above-mentioned preparation directly can contact tap water, its security meets the hygienic requirements of soaking water in Ministry of Health's " Drinking Water transmission & distribution wetting system and protective material safety evaluation specify " about protective material; Not needing construction in layer when constructing, can construct for one time, save the duration; Further, construction is protective layer not, saves cost, can also surface aesthetic.
When specifically preparing solventless epoxy resin coating, by the high speed dispersion some time after epoxy resin, epoxy active diluent, additive mixing, then filler and pigment can be added, continue high speed dispersion 1h.In this dispersion process, open condensation recirculated water, holding temperature is at 20 to 40 °.After stirring terminates, directly enter grinding, utilize three-roll grinder, open condensation recirculated water, be ground to and require fineness, finally enter filling machine and carry out filling.
Adding suitable epoxy active diluent can when not being lowered into film quality, and reduce viscosity, can participate in the process of reacting with solidifying agent, after film forming, thinner can not be separated out.But traditional coating generally adopts non-activated thinner, just reduce viscosity when producing, after film forming, although most of thinner can be discharged in air, still have residual in film, precipitate in tap water, have injury to health.
For this problem, in the embodiment of the present invention, preferably, described epoxy resin is the one of bisphenol A type epoxy resin, polyurethane modified epoxy resin and rubber modified epoxy resin or two kinds.Epoxy resin can adopt bisphenol A type epoxy resin, and film forming is harder, if increase polyurethane modified epoxy resin or rubber modified epoxy resin, plays toughness reinforcing effect, avoids the problem of easy embrittlement.
In the embodiment of the present invention, preferably, described modified multicomponent amine is one or several of modified aliphatic polyamine, modified polyamide polyamine and modified alliphatic polyamine.
In the embodiment of the present invention, preferably, titanium dioxide adopts Rutile type Titanium Dioxide, and a part is used to play the effect of brightening, and another part also can absorb ultraviolet, and in protection film forming, rest part is not by ultraviolet damage.
In the embodiment of the present invention, preferably, described wollastonite powder is needle shape wollastonite powder.
In the embodiment of the present invention, preferably, described flow agent is one in polyacrylic ester and organopolysiloxane or two kinds.
In the embodiment of the present invention, preferably, described auxiliary rheological agents is meteorological silicon-dioxide, N-Methyl pyrrolidone, one or several in hydrogenated castor wet goods.
In the embodiment of the present invention, preferably, described dispersion agent is organosilicon wetting dispersing agent.
In the embodiment of the present invention, preferably, described ground wetting agent is silicone surfactant.
Still more preferably, described dispersion agent is byk220s type organosilicon wetting dispersing agent; Described ground wetting agent is byk347 type silicone surfactant.
In the embodiment of the present invention, preferably, described defoamer is the one in mineral oil antifoam agent, silicone antifoam agent.
In the embodiment of the present invention, preferably, sun-screening agent is hindered amine as light stabilizer or the hydrophilic 2-(liquid mixture of the receipts agent of 2-hydroxyphenyl) – benzotriazole ultraviolet and hindered amine as light stabilizer.
The embodiment of the present invention innovation adopt additive can ensure quality of forming film better, and make production or construction process more simple.
The embodiment of the present invention additionally provides a kind of constructional method according to waterproof type solventless epoxy resin coating in above-mentioned tap water project, with reference to Fig. 1, it illustrates the schema of the constructional method of waterproof type solventless epoxy resin coating in a kind of tap water project described in the embodiment of the present invention, specifically can comprise:
Step 101, described component A mixed with described B component obtain described solventless epoxy resin coating.
Step 102, on the formation level of tap water project, adopt brush, the mode of roller coating or Airless spraying constructs described solventless epoxy resin coating.
For making those skilled in the art understand the present invention better, waterproof type solventless epoxy resin coating and its constructional method in the tap water project of the embodiment of the present invention are described below by way of multiple specific embodiment.
The component A preparation of no-solvent type epoxy resin:
Bisphenol A type epoxy resin is that polycondensation under basic catalyst (usually using sodium hydroxide) acts on forms by diphenylol propane (dihydroxyphenyl propane) and epoxy chloropropane.When propylene oxide is excessive, continually carry out above-mentioned open loop-open loop-ring-closure reaction, finally can obtain the bisphenol A type epoxy resin that two end groups are epoxy group(ing).Regulate the amount ratio of dihydroxyphenyl propane and epoxy chloropropane, the epoxy resin that average molecular mass is different can be obtained.
Solventless epoxy resin coating is 80 ~ 100 weight parts by epoxy resin, described epoxy active diluent is 10 ~ 20 weight parts, and described additive is 3 ~ 10 weight parts, and described filler is 55 ~ 155 weight parts, described pigment 0,5 ~ 3 weight part is via high speed dispersion, and ground and mixed forms.
Embodiment 1
Bisphenol A epoxide resin 80kg
Polyurethane modified epoxy resin 20kg
Epoxy active diluent (lauryl diglycidyl ether) is 10kg
Flow agent (polyacrylic ester) is 0.5kg
Auxiliary rheological agents (meteorological silicon-dioxide) is 2kg
Dispersion agent is 1kg
Ground wetting agent is 0.7kg
Defoamer is 0.3kg
UV light absorber is 1kg
Titanium dioxide (Rutile type Titanium Dioxide) is 8kg
Talcum powder (needle shape wollastonite powder) is 30kg
Wet method sericite in powder is 30kg
Wollastonite powder is 30kg
Ceramics powder is 15kg
B component: modified aliphatic polyamine: 110kg
Embodiment 2
Bisphenol A epoxide resin 90kg
Rubber modified epoxy resin 10kg
Epoxy active diluent 15kg, wherein, lauryl diglycidyl ether (10) kg, BDDE (5) kg
Flow agent (organopolysiloxane) is 1kg
Auxiliary rheological agents is 4kg, wherein, and N-Methyl pyrrolidone (2) kg, hydrogenated castor oil (1) kg
Dispersion agent is 2kg
Ground wetting agent is 2kg
Defoamer is 1.5kg
UV light absorber is 3kg
Titanium dioxide (Rutile type Titanium Dioxide) is 10kg
Talcum powder (needle shape wollastonite powder) is 60kg
Wet method sericite in powder is 20kg
Wollastonite powder is 20kg
Ceramics powder is 5kg
B component: modified polyamide polyamine: 115kg
Embodiment 3
Bisphenol A epoxide resin 100kg
Epoxy active diluent 20kg, wherein, lauryl diglycidyl ether (10) kg, BDDE (4) kg, ethylene glycol diglycidylether (6) kg
Flow agent is 2kg, and wherein, polyacrylic ester is (1) kg, and organopolysiloxane is (1) kg
Auxiliary rheological agents is 6kg, wherein, and meteorological silicon-dioxide (3) kg, N-Methyl pyrrolidone (1) kg, hydrogenated castor oil (2) kg
Dispersion agent is 3kg
Ground wetting agent is 3kg
Defoamer is 3kg
UV light absorber is 1.5kg
Titanium dioxide (Rutile type Titanium Dioxide) is 15kg
Talcum powder (needle shape wollastonite powder) is 60kg
Wet method sericite in powder is 20kg
Wollastonite powder is 20kg
B component is 120kg, wherein modified aliphatic polyamine: modified polyamide polyamine=4:1.
Above waterproof type solventless epoxy resin coating and constructional method thereof in a kind of tap water project provided by the present invention are described in detail, apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. a waterproof type solventless epoxy resin coating in tap water project, is characterized in that, described solventless epoxy resin coating comprises component A and B component; Described component A comprises epoxy resin, epoxy active diluent, additive, filler and pigment;
Described B component comprises modified multicomponent amine;
In described solventless epoxy resin coating, the ratio of each material is: described epoxy resin is 80 ~ 100 weight parts, described epoxy active diluent is 10 ~ 20 weight parts, described additive is 3 ~ 10 weight parts, described filler is 55 ~ 155 weight parts, described pigment is 0.5 ~ 3 weight part, and described modified multicomponent amine is 80 ~ 120 weight parts;
Described epoxy active diluent is at least one in lauryl diglycidyl ether, BDDE, ethylene glycol diglycidylether;
Described additive comprises at least one in flow agent, auxiliary rheological agents, dispersion agent, ground wetting agent, defoamer and UV light absorber;
In described additive, the ratio of each material is: described flow agent is 0.5 ~ 2 weight part, described auxiliary rheological agents is 1 ~ 6 weight part, described dispersion agent is 0.5 ~ 3 weight part, described ground wetting agent is 0.5 ~ 3 weight part, described defoamer is 0.3 ~ 3 weight part, and described UV light absorber is 1 ~ 3 weight part;
Described filler comprises titanium dioxide, talcum powder, wet method sericite in powder, wollastonite powder and ceramics powder;
In described filler, the ratio of each material is described titanium dioxide is 8 ~ 15 weight parts, and described talcum powder is 30 ~ 60 weight parts, and described wet method sericite in powder is 15 ~ 30 weight parts, and described wollastonite powder is 15 ~ 30 weight parts, and described ceramics powder is 15 ~ 2 weight parts.
2. solventless epoxy resin coating according to claim 1, is characterized in that:
Described epoxy resin is the one of bisphenol A type epoxy resin, polyurethane modified epoxy resin and rubber modified epoxy resin or two kinds.
3. solventless epoxy resin coating according to claim 1, is characterized in that:
Described modified multicomponent amine is one or several of modified aliphatic polyamine, modified polyamide polyamine and modified alliphatic polyamine.
4. solventless epoxy resin coating according to claim 1, is characterized in that:
Described titanium dioxide is Rutile type Titanium Dioxide; Described wollastonite powder is needle shape wollastonite powder.
5. solventless epoxy resin coating according to claim 1, is characterized in that:
Described flow agent is one in polyacrylic ester and organopolysiloxane or two kinds;
Described auxiliary rheological agents is meteorological silicon-dioxide, N-Methyl pyrrolidone, one or several in hydrogenated castor wet goods.
6. solventless epoxy resin coating according to claim 1, is characterized in that:
Described dispersion agent is organosilicon wetting dispersing agent;
Described ground wetting agent is silicone surfactant.
7. solventless epoxy resin coating according to claim 1, is characterized in that:
Described dispersion agent is byk220s type organosilicon wetting dispersing agent;
Described ground wetting agent is byk347 type silicone surfactant.
8. solventless epoxy resin coating according to claim 1, is characterized in that:
Described defoamer is silicone antifoam agent or mineral oil antifoam agent.
9. solventless epoxy resin coating according to claim 1, is characterized in that:
Described sun-screening agent is hindered amine as light stabilizer or the hydrophilic 2-(liquid mixture of 2-hydroxyphenyl) – benzotriazole UV absorbers and hindered amine as light stabilizer.
10. the constructional method of solventless epoxy resin coating as described in any one of claim 1-9, is characterized in that, comprising:
Described component A is mixed with described B component and obtains described solventless epoxy resin coating; On the formation level of tap water project, adopt brush, the mode of roller coating or Airless spraying constructs described solventless epoxy resin coating.
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| CN105199548A (en) * | 2015-10-30 | 2015-12-30 | 桂林市和鑫防水装饰材料有限公司 | Epoxy resin waterproof coating for building |
| CN105368252A (en) * | 2015-11-18 | 2016-03-02 | 咸阳东方雨虹建筑材料有限公司 | Waterproof coating and preparation method and application thereof |
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| CN110713775A (en) * | 2019-09-30 | 2020-01-21 | 亚士创能新材料(滁州)有限公司 | Solvent-free glazed finish paint and preparation method thereof |
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Denomination of invention: Waterproof solvent-free epoxy resin coating in drinking water project and construction method thereof Effective date of registration: 20171122 Granted publication date: 20170929 Pledgee: Haidian Beijing science and technology enterprise financing Company limited by guarantee Pledgor: Sam An Corp. Registration number: 2017990001084 |
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Date of cancellation: 20190104 Granted publication date: 20170929 Pledgee: Haidian Beijing science and technology enterprise financing Company limited by guarantee Pledgor: Sam An Corp. Registration number: 2017990001084 |