CN100457824C - Green high-strength epoxy grouting material and its prepn - Google Patents
Green high-strength epoxy grouting material and its prepn Download PDFInfo
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- CN100457824C CN100457824C CNB2006100197053A CN200610019705A CN100457824C CN 100457824 C CN100457824 C CN 100457824C CN B2006100197053 A CNB2006100197053 A CN B2006100197053A CN 200610019705 A CN200610019705 A CN 200610019705A CN 100457824 C CN100457824 C CN 100457824C
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Abstract
The present invention relates to green high-strength epoxy grouting material and its preparation. The green high-strength epoxy grouting material features its material composition comprising liquid epoxy resin with epoxy number of 0.4 -0.54 in 100 weight portions, active diluent in 30-150 weight portions, curing agent in 10-100 weight portions and silane coupler 0.5-10 weight portions. The present invention has the features of no toxic furfural and acetone components, high mechanical strength of the cured material, high impermeability, good durability and simple construction process.
Description
Technical field
The present invention relates to a kind of antiseepage of heavy construction rock foundation and reinforcing or concrete structure crack of being used for and mend environment-friendly high-intensity epoxy grouting material of reason everywhere and preparation method thereof.
Background technology
Epoxy grouting is a host with Resins, epoxy exactly, add a certain amount of thinner and solidifying agent etc. and be configured to the epoxy resin grouting slurries, then under certain process conditions, with grouting equipment it is poured in crack, stratum and the distress in concrete, reaching the anti-reinforcing that blends of being irritated body, thereby guarantee the safe operation of hydraulic structure.
Resins, epoxy is strengthening grouting material with the most use, have the bonding force height, can solidify at normal temperatures, solidify post shrinkage little, very high physical strength and advantages such as thermotolerance, good stability are arranged.With Resins, epoxy is the chemical grouting of host, developed country's World War II later stage promptly begins one's study, China nineteen fifty-nine, needs at three gorges project construction strengthening of foundation and distress in concrete processing, through State Scientific and Technological Commission's approval project verification, be Resins, epoxy that the slurry material of host is used for the Three Gorges consolidation grouting as an important research project.In decades,, developed many prescriptions along with the development of chemical industry, at present in batch strong, the good penetrability of low, the surfactivity of supplied viscosity and can be at low temperature, solidified series epoxide resin grouting material under the wet condition of torrent is arranged.What these materials adopted is the epoxide resin grouting material of using furfural-acetone mixed diluent.It is to consider according to the principle that furfural and acetone can react under certain condition, application in many engineerings with succeeding.
Chinese invention patent CN1524916A " underwater epoxy resin injection material " discloses a kind of underwater epoxy resin injection material, it is that the 0.51-0.54 liquid-state epoxy resin is a host by weight with 100 parts of oxirane values, with 5-50 part acetone and 10-60 part furfural is viscosity-depression agent in the grouting construction process and the reagent in the solidification process, forms by adding as 10-60 part phenol formaldehyde (PF) hexanediamine condenses and 0.5-5 part silicane surface wettability, infiltration, bonding reinforcing agent.
But with furfural, acetone is that the epoxy grouting material of thinner exists volatility big, particularly furfural toxicity is big, contacts acetone for a long time, can produce hormesis to skin, the long-term acetone steam that sucks can play certain anesthetic action to organs such as people's respiratory tract, esophaguses.
Original epoxy grouting material, solidifying agent and viscosity-depression agent must add when construction then and there, could guarantee the effect of epoxy grouting material, are not easy to carry out long-distance transport.
Conclusion is got up: mainly there are the following problems for present existing epoxide resin grouting material: (1) uses the epoxide resin grouting material of furfural-acetone mixed diluent, exist volatility big, particularly furfural toxicity is big, long-term contact acetone, can produce hormesis to skin, the long-term acetone steam that sucks can play certain anesthetic action to organs such as people's respiratory tract, esophaguses.(2) epoxide resin grouting material exists initial viscosity big, and the time of can irritating is shorter relatively, and concrete castability is restricted; (3) cost performance is lower; (4) inconvenience with carry out long-distance transport.
Summary of the invention
At above-mentioned deficiency, the object of the present invention is to provide a kind of Toxic matter furfural, acetone of not containing, cured article mechanical strength height, simple green high-strength epoxy grouting material of construction technology and preparation method thereof.
To achieve these goals, technical scheme of the present invention is: a kind of green high-strength epoxy grouting material, it is characterized in that it is that liquid-state epoxy resin, reactive thinner, solidifying agent and the silane coupling agent feedstock production of 0.4-0.54 forms by oxirane value mainly, the shared parts by weight of each raw material are: oxirane value is 100 parts of liquid-state epoxy resins, reactive thinner 30-150 part, solidifying agent 10-100 part, silane coupling agent 0.5-10 part of 0.4-0.54.
The liquid-state epoxy resin of described 0.4-0.54 is E-44 Resins, epoxy, CYD-128 Resins, epoxy or bisphenol F epoxy resin.
Described reactive thinner be meant can with epoxy hardener reaction and viscosity compound less than 35mPa.s.Reactive thinner is specially benzyl glycidyl ether, neopentylglycol diglycidyl ether, epoxy propane butyl ether or acrylic ester compound.
Described solidifying agent is meant can room temperature, low temperature and under water can all types of curing systems of solidified.Solidifying agent is specially one or more the mixing in polyethylene polyamine, methyl ring pentamethylene diamine, polymeric amide, ketoimine, this addition polyamines of Manny, the proportioning when more than one mix be any than.
The shared parts by weight the best of each raw material is: oxirane value is 100 parts of Resins, epoxy, reactive thinner 80-150 part of 0.4-0.54, solidifying agent 10-60 part, silane coupling agent 0.5-5 part.
The shared parts by weight the best of each raw material is: oxirane value is 100 parts of Resins, epoxy, reactive thinner 90-130 part of 0.4-0.54, solidifying agent 20-50 part, silane coupling agent 0.5-3 part.
A kind of preparation method of green high-strength epoxy grouting material, it is characterized in that it comprises the steps: 1), by the shared parts by weight of each raw material be: oxirane value is that 100 parts of liquid-state epoxy resins, reactive thinner 30-150 part, solidifying agent 10-100 part, silane coupling agent 0.5-10 part of 0.4-0.54 is chosen liquid-state epoxy resin, reactive thinner, solidifying agent and the silane coupling agent raw material that oxirane value is 0.4-0.54, and is standby;
2) be that the liquid-state epoxy resin, reactive thinner of 0.4-0.54 and 1/2 silane coupling agent are mixed into A liquid with oxirane value, the silane coupling agent of solidifying agent and 1/2 is mixed into B liquid; During use, A liquid mixes with B liquid.
Compared with prior art, the invention has the beneficial effects as follows: 1) contain reactive thinner in the resulting green high-strength epoxy grouting material, substituted traditional furfural, acetone diluted agent, reduced harm human body.2) added low viscous active diluted system and low viscous curing system, and made that to solidify initial reaction gentle and thermal discharge is little so the slurries initial viscosity is lower, concrete castability is good, and is can the filling time long; The curing system that is adopted, make slurries keep long the irritated time, and being fit to dryly, moist,, be in the milk under the conditions such as normal temperature and low temperature under water, cured article mechanical strength height can be widely used in buildings basement rock fault belt, distress in concrete is handled and the reinforcement of dam foundation seepage proof curtain.3) price is lower, and is lower than external product price.4) in preparation process, Resins, epoxy, reactive thinner and silane coupling agent are formed A liquid, solidifying agent and silane coupling agent form B liquid; Exempted and added solidifying agent and viscosity-depression agent at the construction field (site),, also be convenient to carry out long-distance transport to reach the best effect of epoxy grouting material.5) construction technology is simple, and is firm to rock and concrete bonding.
Embodiment
Below in conjunction with concrete implementation column and experimental data green high-strength epoxy grouting material of the present invention is described in further detail:
Embodiment 1: a kind of green high-strength epoxy grouting material, and the shared parts by weight of each raw material are:
E-44 Resins, epoxy: 100,
Benzyl glycidyl ether: 110,
Polymeric amide: 50,
Silane coupling agent: 5.
Preparation method: be to be that the silane coupling agent of 100 parts of E-44 Resins, epoxy of 0.4,110 parts benzyl glycidyl ether and 2.5 parts mixes and forms host A liquid, the silane coupling agent of 50 parts polymeric amide and 2.5 parts mixed to form curing system be B liquid with oxirane value.
During use A liquid, B liquid will be poured into simultaneously and need handle in crack, stratum and the distress in concrete with grouting equipment.
Also can be with E-44 Resins, epoxy during preparation: 100, benzyl glycidyl ether: 110, polymeric amide: 50, silane coupling agent: 5 directly mix, and the epoxy grouting material that mixes pours into grouting equipment immediately and needs to handle in crack, stratum and the distress in concrete.
Embodiment 2: a kind of green high-strength epoxy grouting material, and the shared parts by weight of each raw material are:
CYD-128 Resins, epoxy: 100,
Neopentylglycol diglycidyl ether: 120,
Phenol formaldehyde (PF) aliphatic cyclic amine condenses: 40,
Silane coupling agent: 3.
The preparation method is with the preparation of embodiment 1.
Embodiment 3: a kind of green high-strength epoxy grouting material, and the shared parts by weight of each raw material are:
E-44 Resins, epoxy: 100,
Epoxy propane butyl ether: 100,
Phenol formaldehyde (PF) aliphatic cyclic amine condenses: 30,
Silane coupling agent: 1.
The preparation method is with the preparation of embodiment 1.
Embodiment 4: a kind of green high-strength epoxy grouting material, and the shared parts by weight of each raw material are:
Bisphenol F epoxy resin: 100,
Butyl acrylate: 150,
Phenol formaldehyde (PF) aliphatic cyclic amine condenses: 25,
Silane coupling agent: 1.6.
The preparation method is with the preparation of embodiment 1.
Table 1 has provided the experimental result of green high-strength epoxy grouting material embodiment 1-4 of the present invention.Slurries detect to belong to nontoxic product (LD＞15000mg/Kg) through toxicity.
Table 1 green high-strength epoxy grouting material physical and mechanical property
| Embodiment 2 | Initial viscosity: 35mpa.s gel time: 8h | Ultimate compression strength: 85MPa tensile strength: 12MPa bonding strength:＞6.0MPa |
| Embodiment 3 | Initial viscosity: 75mpa.s gel time: 2h | Ultimate compression strength: 77.9MPa tensile strength: 18.2Mpa bonding strength: dried＞6.0MPa is 4.5MPa under water |
| Embodiment 4 | Initial viscosity: 30mpa.s gel time: 18h | Ultimate compression strength: 55MPa tensile strength: 15MPa bonding strength: do 6Mpa |
Analysis by these embodiment results is as can be known: (1) initial viscosity is low, under 20 ℃ of conditions, be between the 30-75mPa.s, and external LPL is 350mPas, sika is 150～180mPas, (2) applied widely, do, all use under moist, the state that water is arranged, and external like product such as LPL, SIKA product are poor for applicability to water.(3) mechanical property height, greater than 10MPa, bonding strength is greater than 5MPa greater than 50MPa, tensile strength for ultimate compression strength.(4) LD
50＞15000mg/kg belongs to nontoxic product, compliance with environmental protection requirements.
Oxirane value of the present invention is that liquid-state epoxy resin, reactive thinner, the solidifying agent of 0.4-0.54, the bound value and the interval value of each raw material of silane coupling agent can both be realized the present invention, does not just enumerate embodiment one by one at this.
Claims (5)
1. green high-strength epoxy grouting material, it is characterized in that it is that liquid-state epoxy resin, reactive thinner, solidifying agent and the silane coupling agent feedstock production of 0.4-0.54 forms by oxirane value mainly, the shared parts by weight of each raw material are: oxirane value is 100 parts of liquid-state epoxy resins, reactive thinner 30-150 part, solidifying agent 10-100 part, silane coupling agent 0.5-10 part of 0.4-0.54; Described reactive thinner is benzyl glycidyl ether, neopentylglycol diglycidyl ether, epoxy propane butyl ether or acrylic ester compound; Described solidifying agent is one or more the mixing in polyethylene polyamine, methyl ring pentamethylene diamine, polymeric amide, ketoimine, this addition polyamines of Manny, the proportioning when more than one mix be any than.
2. a kind of green high-strength epoxy grouting material according to claim 1, the liquid-state epoxy resin that it is characterized in that described 0.4-0.54 are E-44 Resins, epoxy, CYD-128 Resins, epoxy or bisphenol F epoxy resin.
3. a kind of green high-strength epoxy grouting material according to claim 1, it is characterized in that the shared parts by weight of each raw material are: oxirane value is 100 parts of Resins, epoxy, reactive thinner 80-150 part of 0.4-0.54, solidifying agent 10-60 part, silane coupling agent 0.5-5 part.
4. a kind of green high-strength epoxy grouting material according to claim 1, it is characterized in that the shared parts by weight of each raw material are: oxirane value is 100 parts of Resins, epoxy, reactive thinner 90-130 part of 0.4-0.54, solidifying agent 20-50 part, silane coupling agent 0.5-3 part.
5. the preparation method of a kind of green high-strength epoxy grouting material as claimed in claim 1 is characterized in that it comprises the steps: 1), by the shared parts by weight of each raw material be: oxirane value is that 100 parts of liquid-state epoxy resins, reactive thinner 30-150 part, solidifying agent 10-100 part, silane coupling agent 0.5-10 part of 0.4-0.54 is chosen liquid-state epoxy resin, reactive thinner, solidifying agent and the silane coupling agent raw material that oxirane value is 0.4-0.54; Described reactive thinner is benzyl glycidyl ether, neopentylglycol diglycidyl ether, epoxy propane butyl ether or acrylic ester compound; Described solidifying agent is one or more the mixing in polyethylene polyamine, methyl ring pentamethylene diamine, polymeric amide, ketoimine, this addition polyamines of Manny, the proportioning when more than one mix be any than;
2) be that the liquid-state epoxy resin, reactive thinner of 0.4-0.54 and 1/2 silane coupling agent are mixed into A liquid with oxirane value, the silane coupling agent of solidifying agent and 1/2 is mixed into B liquid; During use, A liquid mixes with B liquid.
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| CN100457824C true CN100457824C (en) | 2009-02-04 |
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| CN102061063A (en) * | 2010-12-10 | 2011-05-18 | 湖北省京珠高速公路管理处 | Epoxy resin injecting paste material for maintenance of road engineering and preparation method thereof |
| CN102070874B (en) * | 2010-12-21 | 2013-06-12 | 中科院广州化学有限公司 | High-permeability and high-strength epoxy grouting material, preparation method thereof and application thereof |
| CN102690622B (en) * | 2012-03-26 | 2013-07-17 | 湖南柯盛新材料有限公司 | Repairing adhesive for high-grade facing stone and preparation method thereof |
| CN102924117B (en) * | 2012-10-26 | 2015-02-04 | 苏州市姑苏新型建材有限公司 | Concrete crack repairing agent with low viscosity and dynamic load structure |
| CN103923302B (en) * | 2013-01-10 | 2016-05-11 | 岳阳市山鹰化学工业有限公司 | A kind of epoxy grouting material and preparation method thereof |
| CN105176002B (en) * | 2015-10-13 | 2018-04-20 | 湖南全辰科技有限公司 | A kind of impervious leakage-stopping environment-friendly epoxy grouting material |
| CN106167603B (en) * | 2016-08-11 | 2018-05-15 | 科顺防水科技股份有限公司 | A kind of water environment epoxy grouting material and preparation method thereof |
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| CN111410821B (en) * | 2020-04-22 | 2023-05-02 | 黄河水利水电开发总公司监测维修分公司 | Grouting material for concentrated water leakage defect and grouting method thereof |
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| CN115029088B (en) * | 2021-07-28 | 2024-03-22 | 四川省承华建固防水材料有限公司 | Impervious waterproof material for functional epoxy back surface and preparation method thereof |
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