CN112011265A - Polyurethane waterproof coating and preparation method thereof - Google Patents
Polyurethane waterproof coating and preparation method thereof Download PDFInfo
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- CN112011265A CN112011265A CN202010816903.2A CN202010816903A CN112011265A CN 112011265 A CN112011265 A CN 112011265A CN 202010816903 A CN202010816903 A CN 202010816903A CN 112011265 A CN112011265 A CN 112011265A
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- polyether
- waterproof coating
- polyurethane waterproof
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- 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/08—Polyurethanes from polyethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/008—Additives improving gas barrier properties
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention provides a polyurethane waterproof coating and a preparation method thereof, belonging to the field of waterproof coatings. The invention provides a polyurethane waterproof coating which comprises the following raw material components in parts by weight: 20-30 parts of polyether DL-1000D, 20-30 parts of polyether DL-2000D, 20-30 parts of polyether EP-330NG, 20-30 parts of toluene diisocyanate, 0.8-2 parts of reactive diluent, 10-20 parts of filler and 10-20 parts of solvent. Wherein, the filler is a mixture of rare earth filler, kaolin and illite. The invention also provides a preparation method of the polyurethane waterproof coating. The invention utilizes the synergistic effect of the rare earth filler, the kaolin and the illite to improve the mechanical property of the waterproof coating.
Description
Technical Field
The invention relates to the field of waterproof coatings, and particularly relates to a polyurethane waterproof coating and a preparation method thereof.
Background
The polyurethane waterproof coating has the characteristics of high film strength, good elasticity, firm bonding with a base layer, aging resistance, acid and alkali resistance and the like, is simple to construct and operate, has strong environmental adaptability, and particularly has obvious construction advantages on parts with complex structures, thereby occupying an important position in the waterproof market. With the revision and improvement of the standards of polyurethane waterproof paint products, the products gradually develop towards the directions of environmental protection and high performance, and the improvement of the mechanical properties of the polyurethane waterproof paint becomes one of the key points of attention of people. Traditional filler reinforcing systems such as heavy calcium carbonate and kaolin have certain limitations, and illite mineral powder has the characteristics of small natural particle size, good dispersibility, large specific surface area (1: 40), high diameter-thickness ratio, good adsorbability and the like, has a good reinforcing effect, and can generate more positive effects when being applied to waterproof coatings. Due to the characteristics of unique 4f orbital electronic structure, rich energy level transition, extremely large atomic magnetic moment, strong spin-orbit coupling and the like, the rare earth compound has attracted wider attention in the field of high polymer materials and has application in antibacterial agents, flame retardants, reinforcing agents, light energy conversion agents, stabilizers and catalysts. The filling system using rare earth oxide as filler or modifier can obviously raise the physical and chemical properties of high-molecular material.
Disclosure of Invention
The invention aims to provide a polyurethane waterproof coating and a preparation method thereof, and the performance of the polyurethane waterproof coating is improved by adding rare earth filler.
In order to achieve the purpose, the polyurethane waterproof coating provided by the invention comprises the following raw material components in parts by weight: 20-30 parts of polyether DL-1000D, 78-30 parts of polyether DL-2000D20, 20-30 parts of polyether EP-330NG, 20-30 parts of toluene diisocyanate, 0.8-2 parts of reactive diluent, 10-20 parts of filler and 10-20 parts of solvent.
The filler is a mixture of rare earth filler, kaolin and illite; the mass ratio of the rare earth filler, the kaolin and the illite in the mixture is 1:1-3: 2-4. Wherein, the rare earth filler is a common commercial product.
The mesh number of the filler is 1000-1400 meshes.
The active diluent specifically comprises any one or a combination of more of neodecanoic acid glycidyl ester (HELOXY11), trimethylolpropane triglycidyl ether (HELOXY48) and toluene glycidyl ether (HELOXY 62).
The solvent specifically comprises No. 200 solvent oil.
The invention also provides a preparation method of the polyurethane waterproof coating, which comprises the following steps: adding polyether DL-1000D, polyether DL-2000D and polyether EP-330NG into a reactor according to the weight parts, slowly heating and stirring, adding a filler and uniformly stirring when the temperature is raised to 100 ℃, then adding an active diluent, heating to 120 ℃, performing vacuum dehydration for 3-4h, then cooling to 80-90 ℃, simultaneously adding toluene diisocyanate, performing closed reaction for 2-3h under normal pressure, adding a solvent into the reactor, uniformly stirring, filtering and discharging.
The invention has the beneficial effects that:
the polyurethane waterproof coating prepared by the invention has good mechanical property, the tensile strength is more than or equal to 8.7MPa, the elongation at break is more than or equal to 730 percent, and the tearing strength is more than or equal to 38 MPa. By utilizing the synergistic effect of the rare earth filler, the kaolin and the illite, the mechanical property of the polyurethane waterproof coating is improved, and the application range of the waterproof coating is expanded.
Detailed Description
In order to more clearly and completely describe the technical scheme of the invention, the invention is further described in detail by the specific embodiments, and it should be understood that the specific embodiments described herein are only used for explaining the invention, and are not used for limiting the invention, and various changes can be made within the scope defined by the claims of the invention.
Example 1
The polyurethane waterproof coating comprises the following raw material components in parts by weight: polyether DL-1000D30 parts, polyether DL-2000D 30 parts, polyether EP-330NG 30 parts, toluene diisocyanate 20 parts, reactive diluent 2 parts, filler 20 parts and solvent 20 parts.
Wherein the filler is a mixture of rare earth filler, kaolin and illite; wherein the mass ratio of the rare earth filler, the kaolin and the illite in the mixture is 1:2: 3. Wherein, the rare earth filler is a common commercial product.
Wherein the mesh number of the filler is 1000-1400 meshes.
Wherein the active diluent specifically comprises one or more of neodecanoic acid glycidyl ester (HELOXY11), trimethylolpropane triglycidyl ether (HELOXY48) and toluene glycidyl ether (HELOXY 62).
Wherein, the solvent specifically comprises No. 200 solvent naphtha.
A preparation method of a polyurethane waterproof coating comprises the following steps: adding polyether DL-1000D, polyether DL-2000D and polyether EP-330NG into a reactor according to the weight parts, slowly heating and stirring, adding a filler and uniformly stirring when the temperature is raised to 100 ℃, then adding an active diluent, heating to 120 ℃, performing vacuum dehydration for 3.5h, then cooling to 85 ℃, simultaneously adding toluene diisocyanate, performing closed reaction for 2.5h under normal pressure, adding a solvent into the reactor, uniformly stirring, filtering and discharging.
Example 2
The polyurethane waterproof coating comprises the following raw material components in parts by weight: polyether DL-1000D20 parts, polyether DL-2000D20 parts, polyether EP-330NG20 parts, toluene diisocyanate 30 parts, reactive diluent 0.8 part, filler 10 parts and solvent 10 parts.
Wherein the filler is a mixture of rare earth filler, kaolin and illite; wherein the mass ratio of the rare earth filler, the kaolin and the illite in the mixture is 1:1: 2. Wherein, the rare earth filler is a common commercial product.
Wherein the mesh number of the filler is 1000-1400 meshes.
Wherein the active diluent specifically comprises one or more of neodecanoic acid glycidyl ester (HELOXY11), trimethylolpropane triglycidyl ether (HELOXY48) and toluene glycidyl ether (HELOXY 62).
Wherein, the solvent specifically comprises No. 200 solvent naphtha.
A preparation method of a polyurethane waterproof coating comprises the following steps: adding polyether DL-1000D, polyether DL-2000D and polyether EP-330NG into a reactor according to the weight parts, slowly heating and stirring, adding a filler and uniformly stirring when the temperature is raised to 100 ℃, then adding an active diluent, heating to 120 ℃, performing vacuum dehydration for 3h, then cooling to 80 ℃, simultaneously adding toluene diisocyanate, performing closed reaction for 2h under normal pressure, adding a solvent into the reactor, uniformly stirring, filtering and discharging.
Example 3
The polyurethane waterproof coating comprises the following raw material components in parts by weight: polyether DL-1000D30 parts, polyether DL-2000D 30 parts, polyether EP-330NG20 parts, toluene diisocyanate 20 parts, reactive diluent 1.5 parts, filler 20 parts and solvent 20 parts.
Wherein the filler is a mixture of rare earth filler, kaolin and illite; wherein the mass ratio of the rare earth filler, the kaolin and the illite in the mixture is 1:3: 4. Wherein, the rare earth filler is a common commercial product.
Wherein the mesh number of the filler is 1000-1400 meshes.
Wherein the active diluent specifically comprises one or more of neodecanoic acid glycidyl ester (HELOXY11), trimethylolpropane triglycidyl ether (HELOXY48) and toluene glycidyl ether (HELOXY 62).
Wherein, the solvent specifically comprises No. 200 solvent naphtha.
A preparation method of a polyurethane waterproof coating comprises the following steps: adding polyether DL-1000D, polyether DL-2000D and polyether EP-330NG into a reactor according to the weight parts, slowly heating and stirring, adding a filler and uniformly stirring when the temperature is raised to 100 ℃, then adding an active diluent, heating to 120 ℃, performing vacuum dehydration for 4 hours, then cooling to 90 ℃, simultaneously adding toluene diisocyanate, performing closed reaction for 3 hours under normal pressure, adding a solvent into the reactor, uniformly stirring, filtering and discharging.
Comparative example 1
Wherein the filler is a mixture of kaolin and illite, the mass ratio of the kaolin to the illite in the mixture is 2:3, and the rest is the same as in example 1.
Comparative example 2
Wherein the filler is a mixture of a rare earth filler and kaolin, and the mass ratio of the rare earth filler to the kaolin in the mixture is 1:2, the rest being the same as in example 1.
Comparative example 3
Wherein the filler is a mixture of a rare earth filler and illite, and the mass ratio of the rare earth filler to the illite in the mixture is 1:3, as in example 1.
Comparative example 4
Wherein the filler is a mixture of rare earth filler, kaolin and illite, and the mass ratio of the rare earth filler, the kaolin and the illite in the mixture is 1:4:1, the rest is the same as in example 1.
Comparative example 5
Wherein the filler is a mixture of rare earth filler, kaolin and illite, and the mass ratio of the rare earth filler, the kaolin and the illite in the mixture is 1:1:5, the rest is the same as in example 1.
Comparative example 6
Wherein the filler is a mixture of rare earth filler, kaolin and illite, and the mass ratio of the rare earth filler, the kaolin and the illite in the mixture is 2:1:2, and the rest is the same as in example 1.
The preparation of the polyurethane waterproof coating is carried out according to the coating and curing method in GB/T19250-2013 polyurethane waterproof paint. The performances of the polyurethane waterproof coating are tested according to the technical requirements and the test methods in GB/T19250-2013 and GB/T16777-2008 & lttest method for building waterproof coatings'. The results are shown in Table 1.
TABLE 1
| Tensile strength/MPa | Elongation at break/% | Tear Strength/MPa | |
| Example 1 | 8.84 | 740 | 38.9 |
| Example 2 | 8.82 | 736 | 38.5 |
| Practice ofExample 3 | 8.79 | 735 | 38.7 |
| Comparative example 1 | 8.12 | 508 | 38.4 |
| Comparative example 2 | 8.09 | 725 | 30.5 |
| Comparative example 3 | 7.56 | 738 | 29.5 |
| Comparative example 4 | 6.81 | 680 | 25.1 |
| Comparative example 5 | 6.73 | 675 | 26.3 |
| Comparative example 6 | 6.89 | 678 | 26.1 |
As can be seen from Table 1, the polyurethane waterproof coating prepared by the invention has good mechanical properties, the tensile strength is more than or equal to 8.7MPa, the elongation at break is more than or equal to 730 percent, and the tearing strength is more than or equal to 38 MPa. It can be seen from example 1 and comparative examples 1 to 3 that the rare earth filler mainly improves the elongation at break of the polyurethane waterproofing paint, and the kaolin and illite mainly improve the tensile strength and tear strength of the polyurethane waterproofing paint. As can be seen from comparative examples 4 to 6, when the mass ratio of the rare earth filler, kaolin and illite in the filler exceeds the range of 1:1 to 3:2 to 4, the mechanical properties of the waterproof coating are reduced.
Finally, it should be emphasized that the above-described preferred embodiments of the present invention are merely examples of implementations, rather than limitations, and that many variations and modifications of the invention are possible to those skilled in the art, without departing from the spirit and scope of the invention.
Claims (6)
1. The polyurethane waterproof coating is characterized by comprising the following raw material components in parts by weight: 20-30 parts of polyether DL-1000D, 20-30 parts of polyether DL-2000D, 78-30 parts of polyether EP-330NG20, 20-30 parts of toluene diisocyanate, 0.8-2 parts of reactive diluent, 10-20 parts of filler and 10-20 parts of solvent.
2. The polyurethane waterproof coating material according to claim 1, characterized in that: the filler is a mixture of rare earth filler, kaolin and illite; the mass ratio of the rare earth filler, the kaolin and the illite in the mixture is 1:1-3: 2-4.
3. The polyurethane waterproof coating material according to claim 2, characterized in that: the mesh number of the filler is 1000-1400 meshes.
4. The polyurethane waterproof coating material according to claim 1, characterized in that: the reactive diluent specifically comprises any one or combination of more of neodecanoic acid glycidyl ester, trimethylolpropane triglycidyl ether and toluene glycidyl ether.
5. The polyurethane waterproof coating material according to claim 1, characterized in that: the solvent comprises No. 200 mineral spirits.
6. The method for preparing a polyurethane waterproofing paint according to any one of claims 1 to 5, characterized in that: the invention also provides a preparation method of the polyurethane waterproof coating, which comprises the following steps: adding polyether DL-1000D, polyether DL-2000D and polyether EP-330NG into a reactor according to the weight parts, slowly heating and stirring, adding a filler and uniformly stirring when the temperature is raised to 100 ℃, then adding an active diluent, heating to 120 ℃, performing vacuum dehydration for 3-4h, then cooling to 80-90 ℃, simultaneously adding toluene diisocyanate, performing closed reaction for 2-3h under normal pressure, adding a solvent into the reactor, uniformly stirring, filtering and discharging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010816903.2A CN112011265A (en) | 2020-08-14 | 2020-08-14 | Polyurethane waterproof coating and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010816903.2A CN112011265A (en) | 2020-08-14 | 2020-08-14 | Polyurethane waterproof coating and preparation method thereof |
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| Publication Number | Publication Date |
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| CN112011265A true CN112011265A (en) | 2020-12-01 |
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| CN202010816903.2A Pending CN112011265A (en) | 2020-08-14 | 2020-08-14 | Polyurethane waterproof coating and preparation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006133528A2 (en) * | 2005-06-16 | 2006-12-21 | Comissao Nacional De Energia Nuclear | Composition for producing starch foam resistant to moisture and freeze-thaw cycles |
| US20070179236A1 (en) * | 2006-02-01 | 2007-08-02 | Landon Shayne J | Sealant composition having reduced permeability to gas |
| CN108603050A (en) * | 2016-02-03 | 2018-09-28 | 巴斯夫欧洲公司 | The mono-component aqueous coating composition containing polyurethane and phyllosilicate for oxygen obstruction coating |
| CN109439176A (en) * | 2018-09-06 | 2019-03-08 | 潍坊市宏源防水材料有限公司 | A kind of high intensity mono-composition poyurethane water-proof paint and its preparation process |
| CN109517516A (en) * | 2018-11-20 | 2019-03-26 | 广西大学 | A kind of cerium bentonite modified watersoluble polyurethane paint and preparation method thereof |
-
2020
- 2020-08-14 CN CN202010816903.2A patent/CN112011265A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006133528A2 (en) * | 2005-06-16 | 2006-12-21 | Comissao Nacional De Energia Nuclear | Composition for producing starch foam resistant to moisture and freeze-thaw cycles |
| US20070179236A1 (en) * | 2006-02-01 | 2007-08-02 | Landon Shayne J | Sealant composition having reduced permeability to gas |
| CN108603050A (en) * | 2016-02-03 | 2018-09-28 | 巴斯夫欧洲公司 | The mono-component aqueous coating composition containing polyurethane and phyllosilicate for oxygen obstruction coating |
| CN109439176A (en) * | 2018-09-06 | 2019-03-08 | 潍坊市宏源防水材料有限公司 | A kind of high intensity mono-composition poyurethane water-proof paint and its preparation process |
| CN109517516A (en) * | 2018-11-20 | 2019-03-26 | 广西大学 | A kind of cerium bentonite modified watersoluble polyurethane paint and preparation method thereof |
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