CN106747014B - environment-friendly water-based epoxy cement mortar and preparation method thereof - Google Patents
environment-friendly water-based epoxy cement mortar and preparation method thereof Download PDFInfo
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- CN106747014B CN106747014B CN201611271501.9A CN201611271501A CN106747014B CN 106747014 B CN106747014 B CN 106747014B CN 201611271501 A CN201611271501 A CN 201611271501A CN 106747014 B CN106747014 B CN 106747014B
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- water
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Epoxy Resins (AREA)
Abstract
The environment-friendly water-based epoxy cement mortar comprises a water-based epoxy emulsion and a modified cardanol curing agent, wherein the mass ratio of the water-based epoxy emulsion to the modified cardanol curing agent is 10: 3-5, the environment-friendly water-based epoxy cement mortar also comprises a mixture of cement and sand, a wetting agent, an antifoaming agent, a dispersing agent and water, the mass of the mixture of the cement and the sand is 30% -40% of that of the mixture of the resin and the curing agent, the mass of the wetting agent is 0.1% of that of the mixture of the resin and the curing agent, the mass of the antifoaming agent is 0.1% of that of the mixture of the resin and the curing agent, the mass of the dispersing agent is 0.1% of that of the mixture of the resin. The invention also provides a preparation method of the mortar. According to the invention, the epoxy cement mortar has better toughness, stronger freezing resistance, stronger corrosion resistance, better water resistance and stronger bonding property with a base material through the modified cardanol curing agent.
Description
Technical Field
The invention relates to the field of chemistry, in particular to mortar, and especially relates to environment-friendly water-based epoxy cement mortar and a preparation method thereof.
background
The patent of 'a water-based epoxy cement mortar' applied by Jiangsu Jinling characteristic coating Co., Ltd adopts silicone-acrylic modified water-based epoxy emulsion, modified amine curing agent and cement to mix, and prepares the cement mortar which has good aging resistance, heat resistance, oil resistance, water resistance and physical and mechanical properties and can be applied to cement concrete base surface protection.
a polyurethane epoxy cement mortar and its preparing process are disclosed, which features that the polyurethane resin, epoxy resin, cement and solidifying agent are mixed together to obtain the cement mortar with high antiwear, chemical corrosion and toughness.
Disclosure of Invention
The invention aims to provide environment-friendly water-based epoxy cement mortar and a preparation method thereof, and the preparation method of the environment-friendly water-based epoxy cement mortar aims to solve the technical problems of high preparation cost and easy environmental pollution of the cement mortar in the prior art.
The invention provides environment-friendly water-based epoxy cement mortar which comprises water-based epoxy emulsion and a modified cardanol curing agent, wherein the mass ratio of the water-based epoxy emulsion to the modified cardanol curing agent is 10: 3-5, the environment-friendly water-based epoxy cement mortar also comprises a mixture of cement and sand, a wetting agent, an antifoaming agent, a dispersing agent and water, the mass of the mixture of the cement and the sand is 30% -40% of that of the mixture of the water-based epoxy emulsion and the modified cardanol curing agent, the mass of the wetting agent is 0.1% of that of the mixture of the water-based epoxy emulsion and the modified cardanol curing agent, the mass of the antifoaming agent is 0.1% of that of the mixture of the water-based epoxy emulsion and the modified cardanol curing agent, the mass of the dispersing agent is 0.1% of that of the mixture of the water-based epoxy emulsion and the modified cardanol curing, the mass of the water is 20% of the mass of the mixture of the water-based epoxy emulsion and the modified cardanol curing agent.
Further, the aqueous epoxy emulsion is emulsified bisphenol A type epoxy resin.
Furthermore, the mass ratio of the cement to the sand is 1: 1.
Further, the modified cardanol curing agent is any one of the compounds with the following structural formula
One or more than two of the components are randomly combined, and the structural formula is
OrOr is or
Wherein R is polyethylene polyamine, m-phenylenediamine group or m-xylylenediamine group.
The invention also provides a preparation method of the environment-friendly water-based epoxy cement mortar, which comprises the steps of weighing each reaction substance according to the material ratio, stirring and mixing the water-based epoxy emulsion and the modified cardanol curing agent, adding the mixture of the cement and the sand, stirring and mixing, and finally adding the wetting agent, the defoaming agent, the dispersing agent and water, stirring and mixing.
The invention adopts cashew nut oil extracted from natural cashew nut shells as a raw material to prepare a modified phenol-aldehyde amine epoxy resin curing agent with low viscosity, low-temperature curing, quick curing and good water resistance through modification, and then the modified phenol-aldehyde amine curing agent, water-based epoxy emulsion, cement and sand are used as main component components to be uniformly mixed, phenolic hydroxyl in the structure of the curing agent endows the curing agent with the characteristics of quick curing, low-temperature curing, corrosion resistance, excellent adhesive force and the like, and long unsaturated aliphatic carbon chains endow the curing agent with the characteristics of excellent toughness, wettability and the like. The epoxy cement mortar which has strong adhesive force, large impact strength, high chemical corrosion resistance, good frost resistance, wide construction environment, environmental protection and no pollution is obtained by the method, and the epoxy cement mortar is a good protective material for cement concrete base surfaces.
Compared with the prior art, the invention has the advantages that the technical progress is positive and obvious. The invention uses pure plant cardanol modified synthetic curing agent as the main component of the water-based epoxy cement mortar, so that the epoxy cement mortar has better toughness, stronger frost resistance, stronger corrosion resistance, better water resistance and stronger bonding property with a base material. The low viscosity and low temperature curing (less than 0 ℃) of the curing agent enable the construction of the epoxy cement to be more convenient. The defects of the traditional bisphenol A curing agent are improved to a great extent. The invention improves the performance of the epoxy cement mortar and improves the construction environment.
Detailed Description
Example 1
weighing 100g of waterborne epoxy emulsion and 30g of cardanol modified waterborne curing agent, uniformly mixing and stirring, then adding 40g of cement sand, wherein the cement sand and the sand are mixed according to the ratio of 1: 1, then adding 1.3g of wetting agent, 1.3g of defoaming agent, 1.3g of dispersing agent and 26g of water, and stirring for 0.5 h.
Before construction, the surface of the substrate concrete is cleaned by clear water, then the epoxy cement mortar is evenly and flatly coated on the surface of the substrate, and the curing is carried out at normal temperature.
The actual measurement performance of the cement mortar of the invention is as follows:
Claims (1)
1. The environment-friendly water-based epoxy cement mortar is characterized in that: the waterborne epoxy emulsion and modified cardanol curing agent are used as raw materials, wherein the mass ratio of the waterborne epoxy emulsion to the modified cardanol curing agent is 10: 3-5, further comprising a mixture of cement and sand, a wetting agent, a defoaming agent, a dispersing agent and water, wherein the mass of the mixture of cement and sand is 30% -40% of the mass of the mixture of the water-based epoxy emulsion and the modified cardanol curing agent, the mass of the wetting agent is 0.1% of the mass of the mixture of the water-based epoxy emulsion and the modified cardanol curing agent, the mass of the defoaming agent is 0.1% of the mass of the mixture of the water-based epoxy emulsion and the modified cardanol curing agent, the mass of the dispersing agent is 0.1% of the mass of the mixture of the water-based epoxy emulsion and the modified cardanol curing agent, and the mass of the water is 20% of the mass of the mixture of the water-based epoxy emulsion and the modified cardanol curing agent;
The water-based epoxy emulsion is emulsified bisphenol A type epoxy resin;
The mass ratio of the cement to the sand is 1: 1;
The modified cardanol curing agent is any one or any combination of more than two of compounds with the structural formula
Wherein R comprises polyethylene polyamine, m-phenylenediamine or m-xylylenediamine;
the method for preparing the environment-friendly water-based epoxy cement mortar comprises the steps of weighing each reaction substance according to the material ratio, stirring and mixing the water-based epoxy emulsion and the modified cardanol curing agent, adding the mixture of cement and sand, stirring and mixing, and finally adding the wetting agent, the defoaming agent, the dispersing agent and water, stirring and mixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611271501.9A CN106747014B (en) | 2016-12-30 | 2016-12-30 | environment-friendly water-based epoxy cement mortar and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611271501.9A CN106747014B (en) | 2016-12-30 | 2016-12-30 | environment-friendly water-based epoxy cement mortar and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106747014A CN106747014A (en) | 2017-05-31 |
| CN106747014B true CN106747014B (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611271501.9A Expired - Fee Related CN106747014B (en) | 2016-12-30 | 2016-12-30 | environment-friendly water-based epoxy cement mortar and preparation method thereof |
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| CN (1) | CN106747014B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110357530A (en) * | 2019-07-22 | 2019-10-22 | 徐洪涛 | A kind of setting time regulatable polymer cement mortar and preparation method thereof |
| CN113441376B (en) * | 2021-08-06 | 2022-03-29 | 广东水电二局股份有限公司 | Epoxy polymer modified cement mortar coating process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101633572A (en) * | 2008-07-25 | 2010-01-27 | 深圳市海川实业股份有限公司 | Modified cement mortar |
| CN103980463A (en) * | 2014-04-23 | 2014-08-13 | 中科院广州化学有限公司南雄材料生产基地 | Epoxy resin solvent-free low temperature curing agent, preparation method and application thereof |
| CN104725604A (en) * | 2014-12-23 | 2015-06-24 | 上海美东生物材料股份有限公司 | Waterborne curing agent and preparation method thereof |
-
2016
- 2016-12-30 CN CN201611271501.9A patent/CN106747014B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101633572A (en) * | 2008-07-25 | 2010-01-27 | 深圳市海川实业股份有限公司 | Modified cement mortar |
| CN103980463A (en) * | 2014-04-23 | 2014-08-13 | 中科院广州化学有限公司南雄材料生产基地 | Epoxy resin solvent-free low temperature curing agent, preparation method and application thereof |
| CN104725604A (en) * | 2014-12-23 | 2015-06-24 | 上海美东生物材料股份有限公司 | Waterborne curing agent and preparation method thereof |
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| Publication number | Publication date |
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| CN106747014A (en) | 2017-05-31 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20191106 Address after: 239500, No. three, No. 17, Quanjiao Economic Development Zone, Chuzhou, Anhui Applicant after: ANHUI MEIDONG BIOLOGICAL MATERIAL Co.,Ltd. Address before: 201203, room 328, 302 Edison Road, Zhangjiang hi tech park, Shanghai, Pudong New Area Applicant before: SHANGHAI MEIDONG BIOLOGICAL MATERIAL CO.,LTD. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Environment-friendly waterborne epoxy cement mortar and preparation method thereof Effective date of registration: 20200601 Granted publication date: 20191213 Pledgee: Quanjiao sub branch of Huishang Bank Co.,Ltd. Pledgor: ANHUI MEIDONG BIOLOGICAL MATERIAL Co.,Ltd. Registration number: Y2020980002657 |
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Granted publication date: 20191213 Termination date: 20211230 |
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| CF01 | Termination of patent right due to non-payment of annual fee |