CN111995431A - Polyphenol amine concrete protective agent material and preparation method thereof - Google Patents
Polyphenol amine concrete protective agent material and preparation method thereof Download PDFInfo
- Publication number
- CN111995431A CN111995431A CN202010848201.2A CN202010848201A CN111995431A CN 111995431 A CN111995431 A CN 111995431A CN 202010848201 A CN202010848201 A CN 202010848201A CN 111995431 A CN111995431 A CN 111995431A
- Authority
- CN
- China
- Prior art keywords
- concrete
- test block
- polyphenol
- polyphenylamine
- polyamine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/62—Coating or impregnation with organic materials
- C04B41/63—Macromolecular compounds
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/48—Macromolecular compounds
- C04B41/488—Other macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D179/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups C09D161/00 - C09D177/00
- C09D179/02—Polyamines
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a polyphenylamine concrete protective agent material and a preparation method thereof, wherein the polyphenylamine concrete protective agent material is prepared by mixing raw material components including polyphenol, polyamine and ethanol.
Description
Technical Field
The invention relates to a concrete protective material and a preparation method thereof, in particular to a polyphenylamine concrete protective agent material and a preparation method thereof.
Background
Concrete is an important structural engineering material at present, the durability problem of a concrete structure is increasingly prominent, structural damage caused by insufficient durability of the concrete is very serious at present, and a large number of concrete structures fail in advance due to various reasons and cannot reach the expected service life. The environment of the concrete structure in the coastal area is complex, and the coastal concrete building is seriously damaged by freeze thawing, carbonization, salt ion erosion and the like, so that the major economic loss and the adverse social influence are caused, and the durability of the concrete is urgently improved.
The concrete protective coating is one of measures for improving the durability of concrete which are raised in recent years, namely, corrosion-resistant and anti-permeation coating is sprayed or brushed on the surface of the concrete to enable the concrete to permeate into the concrete to form a hydrophobic protective layer, or a waterproof and airtight protective layer is formed on the surface of the concrete to seal the defects of micro cracks, pores and the like on the surface of the concrete, the damage of external air, water and salt ions to the concrete is isolated, the reduction of the bearing capacity of the concrete structure is effectively inhibited, the safety and the reliability of the service of an engineering structure are improved, the service life of the concrete structure is prolonged, and the existing concrete protective agent has the defects of high curing temperature, poor adhesive force and poor organic solvent resistance and is not beneficial to large-scale construction.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a polyphenylamine concrete protective agent material and a preparation method thereof, and solves the problems of high curing temperature and poor adhesive force and organic solvent resistance
The technical scheme is as follows: the polyphenylamine concrete protective agent material is prepared from mixed liquor containing polyphenol, polyamine and ethanol, wherein the concentration of the polyphenol in the mixed liquor is 0.05-0.5mol/L, and the concentration of the polyamine is 0.05-0.5 mol/L.
Wherein the polyamine is at least one of hexamethylene diamine, heptamethylene diamine and octamethylene diamine.
The polyphenol is at least one of catechol, methoxyphenol and 2-methoxy-4-methylphenol.
The method for preparing the concrete protective coating by using the polyphenylamine concrete protective agent material comprises the following steps:
(1) weighing polyphenol and polyamine according to a certain proportion, pouring into an ethanol solution, carrying out magnetic stirring to obtain a uniformly mixed homogeneous liquid mixture, and reacting for 3-6h at room temperature;
(2) putting the concrete test block into the mixed solution obtained in the step (1) to react for 16-30 h;
(3) taking out the concrete test block soaked for 20-28h, putting the concrete test block into an ethanol solution of hydrophobic alkylamine, and soaking for 12-18 h;
(4) and taking out the test block, heating in a vacuum drying oven in vacuum, and removing the redundant solvent to obtain the concrete protective coating.
The ethanol solution of the hydrophobic alkylamine in the step (3) is a saturated solution, and the hydrophobic alkylamine is at least one of octadecylamine, hexadecylamine, heptadecylamine and the like.
Has the advantages that: according to the invention, the o-catechol group is modified by hydrophobic alkylamine such as octadecylamine, so that the protective agent material has super-hydrophobic performance, the organic protective agent which can react at normal temperature, is simple and convenient to operate, has high adhesive force and good organic solvent resistance is prepared, the preparation process is simple, the raw materials are easy to obtain, the conditions are mild, and the process is controllable.
Drawings
FIG. 1 is a graph showing the results of hydrophobic property tests of a blank and concrete protectant materials prepared in examples 1-3.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
Example 1
The preparation method of the polyphenylamine concrete protective agent material comprises the following steps:
(1) weighing 0.1mol of catechol and 0.2mol of hexamethylenediamine, pouring into 1L of ethanol solution, carrying out magnetic stirring to obtain a homogeneous liquid mixture which is uniformly mixed, and reacting for 5 hours at room temperature;
(2) putting the concrete test block into a uniformly mixed hexamethylenediamine catechol/ethanol mixed solution for reaction for 28 hours;
(3) taking out the concrete test block soaked for 24 hours, and soaking the concrete test block in a saturated ethanol solution of octadecylamine for 14 hours;
(4) and taking out the test block, heating the test block in a vacuum drying oven at 40 ℃ in vacuum, removing the redundant solvent, and carrying out subsequent testing.
Example 2
The preparation method of the polyphenylamine concrete protective agent material comprises the following steps:
(1) weighing 0.2mol of catechol and 0.2mol of hexamethylenediamine, pouring into 1L of ethanol solution, carrying out magnetic stirring to obtain a homogeneous liquid mixture which is uniformly mixed, and reacting for 5 hours at room temperature;
(2) putting the concrete test block into a uniformly mixed hexamethylenediamine catechol/ethanol mixed solution for reaction for 28 hours;
(3) taking out the concrete test block soaked for 24 hours, and soaking the concrete test block in a saturated ethanol solution of octadecylamine for 14 hours;
(4) and taking out the test block, heating the test block in a vacuum drying oven at 40 ℃ in vacuum, removing the redundant solvent, and carrying out subsequent testing.
Example 3
The preparation method of the polyphenylamine concrete protective agent material comprises the following steps:
(1) weighing 0.2mol of catechol and 0.1mol of hexamethylenediamine, pouring into 1L of ethanol solution, carrying out magnetic stirring to obtain a homogeneous liquid mixture which is uniformly mixed, and reacting for 5 hours at room temperature;
(2) putting the concrete test block into a uniformly mixed hexamethylenediamine catechol/ethanol mixed solution for reaction for 28 hours;
(3) taking out the concrete test block soaked for 24 hours, and soaking the concrete test block in a saturated ethanol solution of octadecylamine for 14 hours;
(4) and taking out the test block, heating the test block in a vacuum drying oven at 40 ℃ in vacuum, removing the redundant solvent, and carrying out subsequent testing.
The concrete protectant coatings prepared in examples 1-3 were subjected to performance tests, using a normally cured concrete sample without any surface treatment as a blank sample, and the test results are shown in fig. 1, which can be obtained from the results in fig. 1. the concrete sample treated with the polyphenylamine concrete protectant material has greatly improved hydrophobic properties compared with the concrete sample not treated with the polyphenylamine concrete protectant material, and hydrophobic alkylamine such as octadecylamine can undergo schiff base reaction or michael addition with the catechol group, so that the amino group and the catechol group in the hydrophilic polyphenylamine are covered with hydrophobic octadecylsilane chains, and thus the whole protectant material has superhydrophobic properties.
Claims (5)
1. A polyphenylamine concrete protective agent material is characterized by being prepared from a mixed solution containing polyphenol, polyamine and ethanol, wherein the concentration of the polyphenol in the mixed solution is 0.05-0.5mol/L, and the concentration of the polyamine is 0.05-0.5 mol/L.
2. The polyphenylamine concrete protectant material of claim 1, wherein said polyamine is at least one of hexamethylenediamine, heptamethylenediamine, octamethylenediamine.
3. The polyphenylamine concrete protectant material of claim 1, wherein the polyphenol is at least one of catechol, methoxyphenol, and 2-methoxy-4-methylphenol.
4. A method of preparing a concrete protective coating using the polyphenolic amine concrete protectant material of claim 1, comprising the steps of:
(1) weighing polyphenol and polyamine according to a certain proportion, pouring into an ethanol solution, carrying out magnetic stirring to obtain a uniformly mixed homogeneous liquid mixture, and reacting for 3-6h at room temperature;
(2) putting the concrete test block into the mixed solution obtained in the step (1) to react for 16-30 h;
(3) taking out the concrete test block soaked for 20-28h, putting the concrete test block into an ethanol solution of hydrophobic alkylamine, and soaking for 12-18 h;
(4) and taking out the test block, heating in a vacuum drying oven in vacuum, and removing the redundant solvent to obtain the concrete protective coating.
5. The method for preparing a concrete protective coating according to claim 4, wherein the ethanol solution of the hydrophobic alkylamine in the step (3) is a saturated solution, and the hydrophobic alkylamine is at least one of octadecylamine, hexadecylamine, heptadecylamine, etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010848201.2A CN111995431A (en) | 2020-08-21 | 2020-08-21 | Polyphenol amine concrete protective agent material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010848201.2A CN111995431A (en) | 2020-08-21 | 2020-08-21 | Polyphenol amine concrete protective agent material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111995431A true CN111995431A (en) | 2020-11-27 |
Family
ID=73472941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010848201.2A Pending CN111995431A (en) | 2020-08-21 | 2020-08-21 | Polyphenol amine concrete protective agent material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111995431A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080071011A1 (en) * | 2006-09-20 | 2008-03-20 | Lamers Paul H | Aqueous resinous binders |
| CN103613780A (en) * | 2013-11-14 | 2014-03-05 | 中国科学院化学研究所 | Method for surface modification of hydrophobic polymer microporous membrane |
| CN104105766A (en) * | 2011-12-20 | 2014-10-15 | 株式会社钟化 | Waterproof coating material and building roof having coating film formed therefrom |
| CN104262663A (en) * | 2014-09-10 | 2015-01-07 | 齐鲁工业大学 | Preparation method of poly(phenol-amine) superhydrophobic particulates |
-
2020
- 2020-08-21 CN CN202010848201.2A patent/CN111995431A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080071011A1 (en) * | 2006-09-20 | 2008-03-20 | Lamers Paul H | Aqueous resinous binders |
| CN104105766A (en) * | 2011-12-20 | 2014-10-15 | 株式会社钟化 | Waterproof coating material and building roof having coating film formed therefrom |
| CN103613780A (en) * | 2013-11-14 | 2014-03-05 | 中国科学院化学研究所 | Method for surface modification of hydrophobic polymer microporous membrane |
| CN104262663A (en) * | 2014-09-10 | 2015-01-07 | 齐鲁工业大学 | Preparation method of poly(phenol-amine) superhydrophobic particulates |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107961747B (en) | Internally-repaired and externally-fixed polyurea-based double-wall self-repairing microcapsule and preparation method thereof | |
| CN107970868B (en) | Externally-repaired and internally-fixed polyurea-based double-wall self-repairing microcapsule and preparation method thereof | |
| WO2019134416A1 (en) | Lignosulfonate dispersion self-healing polyurea coating, preparation method therefor, coating layer thereof and application thereof | |
| CN111822296A (en) | Preparation method of super-hydrophobic composite coating on surface of aluminum alloy | |
| CN109704631A (en) | A kind of preparation method of concrete antiseptic agent | |
| CN108624172A (en) | A kind of aqueous diatom ooze liquid coating and preparation method with self-repair function | |
| CN113621295A (en) | Water-based epoxy resin coating with anticorrosion and flame-retardant functions and preparation method thereof | |
| CN113149511A (en) | Microbial microcapsule for self-repairing of concrete cracks, preparation method of microbial microcapsule and self-repairing concrete | |
| CN107952404B (en) | Internal-repair external-fixation type porous boron nitride-polyurea-based double-wall self-repairing microcapsule and preparation method thereof | |
| CN109173751A (en) | A kind of method of modifying of pvdf membrane | |
| CN113174152A (en) | Lithium silicate penetrating protective coating composition and preparation method thereof | |
| CN111995431A (en) | Polyphenol amine concrete protective agent material and preparation method thereof | |
| CN112939506B (en) | Preparation method of crack self-healing quick response additive for concrete | |
| CN112811845B (en) | Preparation method of cement-based self-repairing material based on oil-soluble amine microcapsules | |
| CN113480270B (en) | Lightweight aggregate concrete and preparation method thereof | |
| CN110079203B (en) | Preparation and application method of water-resistant polyurethane coating material | |
| CN110540768B (en) | Concrete anticorrosive coating and preparation method thereof | |
| CN114350229B (en) | Graphene modified epoxy resin floor paint and preparation method thereof | |
| CN114956867B (en) | Modified hexagonal boron nitride-silane composite emulsion, preparation method and application thereof, and concrete surface protection method | |
| CN110698169A (en) | Preparation method of high-temperature-resistant quartz fiber needled felt/phenolic resin composite carbonized derivative | |
| CN114276750B (en) | Concrete surface layer reinforcing material and preparation and construction method thereof | |
| CN114735994A (en) | Method for preparing super-hydrophobic polymer waterproof coating from rice hull ash | |
| CN110950565B (en) | PH value triggered self-repairing aggregate and preparation method thereof | |
| CN116655282B (en) | Ocean engineering chloride ion resistant agent and preparation method thereof | |
| CN106833374A (en) | A kind of impermeable mildewproof waterproof coating of environmental protection and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201127 |