CN105237956A - Water-swellable epoxy material - Google Patents
Water-swellable epoxy material Download PDFInfo
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- CN105237956A CN105237956A CN201510750028.1A CN201510750028A CN105237956A CN 105237956 A CN105237956 A CN 105237956A CN 201510750028 A CN201510750028 A CN 201510750028A CN 105237956 A CN105237956 A CN 105237956A
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Abstract
The invention relates to a water-swellable epoxy material. The water-swellable epoxy material provided by the invention can be grouted, and has a water swelling performance after solidification, so the water-swellable epoxy material has high bonding strength with a concrete surface under dry conditions, and can absorb water and swell when water seepage of cracks appears in order to realize seepage prevention and water sealing effects. The water-swellable epoxy material is composed of a component A and a component B, the component A comprises, by weight, 100 parts of water-soluble epoxy resin, 0-250 parts of epoxy resin and 0-30 parts of an active diluent, the component B comprises, by weight, 20-130 parts of a curing agent and 1-15 parts of a promoter. The water-swellable epoxy material is prepared through the following steps: respectively mixing raw materials of the component A and raw materials of the component B at room temperature, uniformly mixing, and mixing the component A with the component B according to a mass ratio of 1:0.2-0.6 in the use process. The water-swellable epoxy material is suitable for plugging cracks of concretes in water conservancy, water power, municipal administration, traffic, house buildings and other large engineering.
Description
Technical field
The present invention relates to a kind of epoxy material of water-swellable.Be applicable to the concrete crack shutoff in the heavy constructions such as water conservancy, water power, municipal administration, traffic and housing.
Background technology
In the heavy constructions such as water conservancy, water power, municipal administration, traffic and housing; often can run into the situation of generous amount, big area deposit concrete; due to build condition control difficulty and the later stage deform by the impact of the factor such as temperature variation, settlement of foundation; usually there will be microscopic checks; these cracks are run through a bit, and some is shallow-layer, and through crack is dry a bit; some moist even has infiltration, and Shallow crack is dry often.For humidity or the through crack having infiltration, aqurous ployurethane injection material is often adopted to carry out shutoff, and for the crack of drying, because polyurethane grouting material is difficult to solidification in anhydrous conditions, and not high enough with concrete bonding strength in dry conditions, therefore application is restricted.But also can seep water after the through crack of these dryings and seepage paths UNICOM, dry Shallow crack also can develop into through crack as the weak part of stress concentration in the later stage.
Summary of the invention
The technical problem to be solved in the present invention is: the epoxy material providing a kind of water-swellable, this epoxy material can grouting construction and have the performance of water-swellable after solidification, not only high with concrete surface bonding strength in dry conditions, when seeping water in crack, again can water-swelling, play the effect of water seepage prevention.
The technical solution adopted in the present invention is: the epoxy material of water-swellable, it is characterized in that being made up of A, B two-component, and composition of raw materials is as follows respectively:
Component A:
Water-soluble epoxy resin 100 weight part
Epoxy resin 0 ~ 250 weight part
Reactive thinner 0 ~ 30 weight part
B component:
Solidifying agent 20 ~ 130 weight part
Promotor 1 ~ 15 weight part
Respectively by A, B component mixing and stirring at ambient temperature, component A in mass ratio during use: B component=1:0.2 ~ 0.6 mixes.
Described epoxy material can also be filled a prescription preferably below:
Component A:
Water-soluble epoxy resin 90 weight part
Epoxy resin 9 ~ 200 weight part
Reactive thinner 2 ~ 20 weight part
B component:
Solidifying agent 20 ~ 80 weight part
Promotor 2 ~ 12 weight part
Respectively by A, B component mixing and stirring at ambient temperature, component A in mass ratio during use: B component=1:0.22 ~ 0.5 mixes.
Described epoxy material can also be filled a prescription preferably below:
Component A:
Water-soluble epoxy resin 80 weight part
Epoxy resin 24 ~ 100 weight part
Reactive thinner 5 ~ 16 weight part
B component:
Solidifying agent 24 ~ 55 weight part
Promotor 3 ~ 4 weight part
Respectively by A, B component mixing and stirring at ambient temperature, component A in mass ratio during use: B component=1:0.25 ~ 0.35 mixes.
Containing two or more epoxy group(ing) in the molecule of described water-soluble epoxy resin, water-soluble, molecular weight 100 to 1000, comprises polyethyleneglycol diglycidylether, poly ethyldiol modified epoxy resin, the epoxy resin of aqurous ployurethane performed polymer modification or their mixture.
Described epoxy resin is bisphenol A type epoxy resin, comprises E51 epoxy resin or E54 epoxy resin or both mixtures.
Described reactive thinner is that viscosity, lower than the glycidyl ether of 20mPa.s, comprises benzyl glycidyl ether, butanediol diglycidyl ether or both mixtures 25 DEG C time.
Described solidifying agent is polyether monoamine solidifying agent, alicyclic ring amine curing agent, polyamide-based solidifying agent, fatty amines solidifying agent or their mixture.
Described promotor is nonyl phenol substitute, 2,4,6-three (dimethylamino methyl) phenol or both mixtures.
The invention has the beneficial effects as follows: the performance that present invention gives the water-swelling of epoxy resin induration, this water-swellable epoxy material is two-component materials, moisture is not needed to solidify at ambient temperature after two component mixing, high with concrete surface bonding strength under drying conditions, when seeping water in crack, can water-swelling, play water seepage prevention effect.When Fracture Deformation is little, when selecting the formula that rate of expansion is low, mechanical property is high, the effect of reinforcing can also be played before inflation, can the further expansion of effective crackle preventing.
Accompanying drawing explanation
Picture after Fig. 1 is epoxy material half of the present invention no immersion, second half immersion is expanded.
Embodiment
To be described in detail by specific embodiment below:
Embodiment 1, taking polyethylene glycol diglycidylether 90 parts, poly ethyldiol modified epoxy resin 10 parts, mixes rear formation component A; Get fatty amine curing agent 20 parts, 2,4,6-three (dimethylamino methyl) phenol 2 parts, after mixing, form B component.After respectively A, B component at room temperature being mixed, then component A in mass ratio: can use after B component=1:0.22 mixing.The initial viscosity 100mPa.s of slurries, grouting operable time 8 hours, 23 DEG C ± 2 DEG C solidifications 28 days, tensile strength 0.8MPa, elongation at break 10%, ultimate compression strength 2MPa, water-swellable rate 178%.
Embodiment 2, taking polyethylene glycol diglycidylether 100 parts, E51 epoxy resin 20 parts, butanediol diglycidyl ether 15 parts, mixes as component A; Get 35 parts, polyetheramine solidifying agent, fatty amine curing agent 20 parts, 2,4,6-three (dimethylamino methyl) phenol 2 parts, nonyl phenol substitute 4 parts, forms B component after mixing.After respectively A, B component at room temperature being mixed, then component A in mass ratio: can use after B component=1:0.51 mixing.The initial viscosity 110mPa.s of slurries, grouting operable time 100 minutes, 23 DEG C ± 2 DEG C solidifications 28 days, tensile strength 7MPa, elongation at break 135%, 50% distortion ultimate compression strength 40MPa, water-swellable rate 137%.
Embodiment 3, the epoxy resin 100 parts of taking polyethylene glycol modification, E51 epoxy resin 60 parts, butanediol diglycidyl ether 10 parts, forms component A after mixing; 35 parts, polyetheramine solidifying agent, 15 parts, aliphatic cyclic amine solidifying agent, 2,4,6-three (dimethylamino methyl) phenol 2 parts, nonyl phenol substitute 4 parts, forms B component after mixing.After respectively A, B component at room temperature being mixed, then component A in mass ratio: can use after B component=1:0.33 mixing.The initial viscosity 120mPa.s of slurries, grouting operable time 150 minutes, 23 DEG C ± 2 DEG C solidifications 28 days, tensile strength 15MPa, elongation at break 96%, 50% distortion ultimate compression strength 60MPa, water-swellable rate 70%.
Embodiment 4, the epoxy resin 100 parts that water-soluble polyurethane prepolymer is modifies, E54 epoxy resin 100 parts, butanediol diglycidyl ether 17 parts, benzyl glycidyl ether 4 parts, forms component A after mixing; Get fatty amine curing agent 34 parts, polyamide curing agent 60 parts, after 2,4,6-three (dimethylamino methyl) phenol 6 parts mixes, form B component.After respectively A, B component at room temperature being mixed, then component A in mass ratio: can use after B component=1:0.46 mixing.The initial viscosity 145mPa.s of slurries, grouting operable time 120 minutes, 23 DEG C ± 2 DEG C solidifications 28 days, tensile strength 25MPa, elongation at break 80%, 50% distortion ultimate compression strength 90MPa, water-swellable rate 15%.
Reaction of the present invention belongs to thermopositive reaction, adjustment solidifying agent or the consumption of promotor can obtain difference can the material of grouting time, the consumption of adjustment ring epoxy resins, the induration tensile strength 0.1MPa ~ 30MPa formed, elongation at break 2% ~ 100%, ultimate compression strength 0.5MPa ~ 100MPa, water-swellable rate 10% ~ 200%.In order to reflect the compatibility of each raw material more intuitively, as listed 8 embodiments of the present invention in following table 1, it is numbered A1 ~ A8.In table 1, each component concentration represents with weight part.
Table 1:
The domestic report that yet there are no product of the present invention at present.Before and after the water suction of this product, as shown in Figure 1, the induration formed bottom cup, is divided into two pieces to the photo of state, no immersion on the left side, the right be that after immersion is expanded, weight increases by more than 100%.
Claims (8)
1. an epoxy material for water-swellable, is characterized in that being made up of A, B two-component, and composition of raw materials is as follows respectively:
Component A:
Water-soluble epoxy resin 100 weight part
Epoxy resin 0 ~ 250 weight part
Reactive thinner 0 ~ 30 weight part
B component:
Solidifying agent 20 ~ 130 weight part
Promotor 1 ~ 15 weight part
Respectively by A, B component mixing and stirring at ambient temperature, component A in mass ratio during use: B component=1:0.2 ~ 0.6 mixes.
2. epoxy material according to claim 1, is characterized in that:
Component A:
Water-soluble epoxy resin 90 weight part
Epoxy resin 9 ~ 200 weight part
Reactive thinner 2 ~ 20 weight part
B component:
Solidifying agent 20 ~ 80 weight part
Promotor 2 ~ 12 weight part
Respectively by A, B component mixing and stirring at ambient temperature, component A in mass ratio during use: B component=1:0.22 ~ 0.5 mixes.
3. epoxy material according to claim 1, is characterized in that:
Component A:
Water-soluble epoxy resin 80 weight part
Epoxy resin 24 ~ 100 weight part
Reactive thinner 5 ~ 16 weight part
B component:
Solidifying agent 24 ~ 55 weight part
Promotor 3 ~ 4 weight part
Respectively by A, B component mixing and stirring at ambient temperature, component A in mass ratio during use: B component=1:0.25 ~ 0.35 mixes.
4. according to the arbitrary described epoxy material of claims 1 to 3, it is characterized in that: containing two or more epoxy group(ing) in the molecule of described water-soluble epoxy resin, water-soluble, molecular weight 100 to 1000, comprises polyethyleneglycol diglycidylether, poly ethyldiol modified epoxy resin, the epoxy resin of aqurous ployurethane performed polymer modification or their mixture.
5. according to the arbitrary described epoxy material of claims 1 to 3, it is characterized in that: described epoxy resin is bisphenol A type epoxy resin, comprise E51 epoxy resin or E54 epoxy resin or both mixtures.
6., according to the arbitrary described epoxy material of claims 1 to 3, it is characterized in that: described reactive thinner is that viscosity, lower than the glycidyl ether of 20mPa.s, comprises benzyl glycidyl ether, butanediol diglycidyl ether or both mixtures 25 DEG C time.
7., according to the arbitrary described epoxy material of claims 1 to 3, it is characterized in that: described solidifying agent is polyether monoamine solidifying agent, alicyclic ring amine curing agent, polyamide-based solidifying agent, fatty amines solidifying agent or their mixture.
8., according to the arbitrary described epoxy material of claims 1 to 3, it is characterized in that: described promotor is nonyl phenol substitute, 2,4,6-three (dimethylamino methyl) phenol or both mixtures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510750028.1A CN105237956B (en) | 2015-11-05 | 2015-11-05 | A kind of epoxy material of water-swellable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510750028.1A CN105237956B (en) | 2015-11-05 | 2015-11-05 | A kind of epoxy material of water-swellable |
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| CN105237956A true CN105237956A (en) | 2016-01-13 |
| CN105237956B CN105237956B (en) | 2018-11-02 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106800903A (en) * | 2017-01-03 | 2017-06-06 | 盛隆建材有限公司 | Environmentally friendly reinforcing type modified epoxy grouting and preparation method thereof |
| CN113831690A (en) * | 2021-10-14 | 2021-12-24 | 东莞市珍和树脂科技有限公司 | Epoxy resin-based composition, preparation method thereof and putty powder |
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| CN102304217A (en) * | 2011-07-25 | 2012-01-04 | 株洲时代新材料科技股份有限公司 | Epoxy solvent-free impregnating resin with low viscosity and preparation method thereof |
| CN102504670A (en) * | 2011-10-27 | 2012-06-20 | 北京东方雨虹防水技术股份有限公司 | Permeable epoxy resin waterproof coating for concrete |
| CN102702686A (en) * | 2012-06-19 | 2012-10-03 | 广州聚合电子材料有限公司 | Epoxy resin system capable of being applied to producing megawatt-level wind turbine blade and preparation method of epoxy resin system |
| CN102933634A (en) * | 2010-09-29 | 2013-02-13 | Dic株式会社 | Water dispersible epoxy resin and production method thereof, water-based epoxy resin composition and curable articles thereof |
| CN104725783A (en) * | 2014-12-25 | 2015-06-24 | 上海康达新能源材料有限公司 | Anti-sagging and anti-crystallizing wind power hand lay-up resin system and preparation method thereof |
-
2015
- 2015-11-05 CN CN201510750028.1A patent/CN105237956B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102933634A (en) * | 2010-09-29 | 2013-02-13 | Dic株式会社 | Water dispersible epoxy resin and production method thereof, water-based epoxy resin composition and curable articles thereof |
| CN102304217A (en) * | 2011-07-25 | 2012-01-04 | 株洲时代新材料科技股份有限公司 | Epoxy solvent-free impregnating resin with low viscosity and preparation method thereof |
| CN102504670A (en) * | 2011-10-27 | 2012-06-20 | 北京东方雨虹防水技术股份有限公司 | Permeable epoxy resin waterproof coating for concrete |
| CN102702686A (en) * | 2012-06-19 | 2012-10-03 | 广州聚合电子材料有限公司 | Epoxy resin system capable of being applied to producing megawatt-level wind turbine blade and preparation method of epoxy resin system |
| CN104725783A (en) * | 2014-12-25 | 2015-06-24 | 上海康达新能源材料有限公司 | Anti-sagging and anti-crystallizing wind power hand lay-up resin system and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106800903A (en) * | 2017-01-03 | 2017-06-06 | 盛隆建材有限公司 | Environmentally friendly reinforcing type modified epoxy grouting and preparation method thereof |
| CN106800903B (en) * | 2017-01-03 | 2019-08-06 | 盛隆建材有限公司 | Environmentally friendly reinforcing type modified epoxy grouting and preparation method thereof |
| CN113831690A (en) * | 2021-10-14 | 2021-12-24 | 东莞市珍和树脂科技有限公司 | Epoxy resin-based composition, preparation method thereof and putty powder |
| CN113831690B (en) * | 2021-10-14 | 2023-08-22 | 东莞市珍和树脂科技有限公司 | Epoxy resin-based composition, preparation method thereof and putty powder |
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| CN105237956B (en) | 2018-11-02 |
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