CN117844359A - Moisture-resistant brushing, weather-resistant and ageing-resistant super-flowered polyurethane coating and preparation method thereof - Google Patents
Moisture-resistant brushing, weather-resistant and ageing-resistant super-flowered polyurethane coating and preparation method thereof Download PDFInfo
- Publication number
- CN117844359A CN117844359A CN202410065315.8A CN202410065315A CN117844359A CN 117844359 A CN117844359 A CN 117844359A CN 202410065315 A CN202410065315 A CN 202410065315A CN 117844359 A CN117844359 A CN 117844359A
- Authority
- CN
- China
- Prior art keywords
- resistant
- parts
- moisture
- weather
- preparation
- 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
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 230000032683 aging Effects 0.000 title claims abstract description 14
- 239000011527 polyurethane coating Substances 0.000 title claims description 16
- 230000001680 brushing effect Effects 0.000 title claims description 7
- 239000011347 resin Substances 0.000 claims abstract description 15
- 229920005989 resin Polymers 0.000 claims abstract description 15
- 239000000945 filler Substances 0.000 claims abstract description 12
- 239000000049 pigment Substances 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 239000004814 polyurethane Substances 0.000 claims abstract description 7
- 229920002635 polyurethane Polymers 0.000 claims abstract description 7
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 6
- 239000000654 additive Substances 0.000 claims abstract description 3
- 230000000996 additive effect Effects 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims description 9
- JOYRKODLDBILNP-UHFFFAOYSA-N urethane group Chemical group NC(=O)OCC JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000013078 crystal Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 3
- 239000004202 carbamide Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 239000003973 paint Substances 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000006750 UV protection Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 239000002932 luster Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004970 Chain extender Substances 0.000 description 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000004224 protection Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to the technical field of paint, in particular to a moisture-resistant, weather-resistant and ageing-resistant super-flowered polyurethane paint and a preparation method thereof, wherein the moisture-resistant, weather-resistant and ageing-resistant super-flowered polyurethane paint comprises the following raw materials in parts by weight: modified resin, pigment filler, active thinner and modified auxiliary agent, wherein the components of the preparation raw materials are as follows: 60-70 parts of modified resin, 20-35 parts of pigment and filler, 3-5 parts of active thinner and 2-5 parts of modified additive.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to a moisture-resistant, brushing-resistant, weather-resistant and ageing-resistant super-flowable polyurethane coating and a preparation method thereof.
Background
The polyurethane coating has strong adhesion, and a coating film has excellent wear resistance, water resistance, chemical resistance and the like, and is commonly used for outdoor or indoor damp-resistant waterproof coating, but the existing polyurethane coating has the following defects of ultraviolet resistance, moisture resistance, acid and alkali resistance and high and low temperature resistance when in use.
Disclosure of Invention
The present invention is directed to solving the technical problems set forth in the background art.
The invention adopts the following technical scheme: the moisture-resistant brushing, weather-resistant and ageing-resistant super-flowered polyurethane coating comprises the following raw materials in parts by weight: modified resin, pigment filler, active thinner and modified auxiliary agent, wherein the components of the preparation raw materials are as follows: 60-70 parts of modified resin, 20-35 parts of pigment and filler, 3-5 parts of active thinner and 2-5 parts of modified additive.
Preferably, the main component of the modified resin is RNHONHR white crystal powder containing urea.
Preferably, the preparation method of the RNHONHR comprises the following steps: firstly NCO and OH groups react to generate urethane groups, and the specific formula is as follows:
then, reacting the urethane group with NCO to obtain RNHONHR, wherein the RNHONHR is white crystal powder, and the specific reaction formula is as follows:
。
a preparation method of a moisture-resistant, brushing, weather-resistant and ageing-resistant super-flowable polyurethane coating comprises the following steps: firstly, adding polyurethane modified resin, and stirring for 15 minutes in vacuum; step two: adding active thinner and modifying assistant in turn under the pressure lower than 0.9 atmosphere, stirring for 30 minutes, and step three: then adding pigment and filler slowly, stirring at 70-80 deg.C for 20 min, maintaining the temperature for 1 hr, cooling and packaging.
Compared with the prior art, the invention has the advantages and positive effects that:
in the invention, the prepared polyurethane coating is exposed to the sun for 30 days at a burst-sunning field, has no color change, is constructed under the condition of humidity of 95 ℃, has no change in gloss, is tested at the temperature of-10 ℃, is cured for 4 hours, is cured at the temperature of 50 ℃ and is normally constructed, when tested after curing, is soaked in boiled water of 100 ℃ for 1 hour, a paint film has no change, is soaked in water containing 15% of NAOH and H2OSO4 for 30 days, has no change, and the produced products have obvious difference after dehydration by the production process: the paint which is not dehydrated has the luster of 80-85, the dehydrated luster of 90-95, the leveling property after construction is general, and the leveling property after dehydration is good.
Drawings
FIG. 1 is a flow chart showing a moisture-resistant coating, weather-resistant and aging-resistant super-flowable polyurethane coating and a preparation method thereof.
Detailed Description
In order that the above objects, features and advantages of the invention will be more clearly understood, a further description of the invention will be rendered by reference to the appended drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as described herein, and therefore the present invention is not limited to the specific embodiments of the disclosure that follow.
Referring to fig. 1, the present invention provides a technical solution: the preparation raw materials of the moisture-resistant, weather-resistant and ageing-resistant super-flowered polyurethane coating comprise the following components in parts by mass: modified resin, pigment filler, active thinner and modified auxiliary agent, wherein the components of the preparation raw materials are as follows: 60-70 parts of modified resin, 20-35 parts of pigment and filler, 3-5 parts of active thinner and 2-5 parts of modified auxiliary agent, wherein the main components of the modified resin are RNHONHR urea-containing white crystal powder, and the preparation method of the RNHONHR comprises the following steps: firstly NCO and OH groups react to generate urethane groups, and the specific formula is as follows:
then, urethane groups react with NCO to obtain RNHONHR, RNHONHR white crystal powder, and the specific reaction formula is as follows:
。
a preparation method of moisture-resistant, brushing, weather-resistant and aging-resistant super-flowable polyurethane coating comprises the following steps of;
step one: firstly, adding polyurethane modified resin, and stirring for 15 minutes in vacuum; step two: adding active thinner and modifying assistant in turn under the pressure lower than 0.9 atmosphere, stirring for 30 minutes, and step three: then adding pigment and filler slowly, stirring at 70-80 deg.C for 20 min, maintaining the temperature for 1 hr, cooling and packaging.
Working principle: the polyurethane is changed into NCO and OH groups to react to synthesize urethane groups and NCO to obtain an RNHONHR product, then the polyurethane modified resin is stirred for fifteen minutes under vacuum, then active thinner, a modifying auxiliary agent and a chain extender are sequentially added to be stirred for thirty minutes, finally pigment and filler are added, the mixture is stirred for 20 minutes under 70-80 ℃ and then is kept warm for one hour, and then the mixture is cooled and packaged, so that the obtained polyurethane coating has the advantages of ultraviolet resistance, moisture resistance, high and low temperature resistance and light acid and alkali resistance.
The present invention is not limited to the above embodiments, and any equivalent embodiments which can be changed or modified by the technical disclosure described above can be applied to other fields, but any simple modification, equivalent changes and modification to the above embodiments according to the technical matter of the present invention will still fall within the protection scope of the technical disclosure.
Claims (4)
1. The moisture-resistant, weather-resistant and ageing-resistant super-flowered polyurethane coating is characterized by comprising the following raw materials in parts by mass: modified resin, pigment filler, active thinner and modified auxiliary agent, wherein the components of the preparation raw materials are as follows: 60-70 parts of modified resin, 20-35 parts of pigment and filler, 3-5 parts of active thinner and 2-5 parts of modified additive.
2. The moisture resistant, weather resistant and aging resistant super-flowable polyurethane coating of claim 1, wherein: the main component of the modified resin is RNHONHR urea-containing white crystal powder.
3. The moisture resistant, weather resistant and aging resistant super-flowable polyurethane coating of claim 1, wherein: the preparation method of the RNHONHR comprises the following steps: firstly NCO and OH groups react to generate urethane groups, and the specific formula is as follows:
then, reacting the urethane group with NCO to obtain RNHONHR, wherein the RNHONHR is white crystal powder, and the specific reaction formula is as follows:
。
4. a preparation method of a moisture-resistant, brushing, weather-resistant and ageing-resistant super-flowable polyurethane coating is characterized by comprising the following steps of; step one: firstly, adding polyurethane modified resin, and stirring for 15 minutes in vacuum; step two: adding active thinner and modifying assistant in turn under the pressure lower than 0.9 atmosphere, stirring for 30 minutes, and step three: then adding pigment and filler slowly, stirring at 70-80 deg.C for 20 min, maintaining the temperature for 1 hr, cooling and packaging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410065315.8A CN117844359A (en) | 2024-01-17 | 2024-01-17 | Moisture-resistant brushing, weather-resistant and ageing-resistant super-flowered polyurethane coating and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410065315.8A CN117844359A (en) | 2024-01-17 | 2024-01-17 | Moisture-resistant brushing, weather-resistant and ageing-resistant super-flowered polyurethane coating and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117844359A true CN117844359A (en) | 2024-04-09 |
Family
ID=90532613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410065315.8A Pending CN117844359A (en) | 2024-01-17 | 2024-01-17 | Moisture-resistant brushing, weather-resistant and ageing-resistant super-flowered polyurethane coating and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117844359A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995032231A1 (en) * | 1994-05-20 | 1995-11-30 | Asahi Kasei Kogyo Kabushiki Kaisha | Linear crystalline polyuretedione |
| CN1952024A (en) * | 2005-10-17 | 2007-04-25 | 德古萨公司 | Powder coating compositions with crystalline constituents that are stable in storage |
| CN102952458A (en) * | 2012-11-29 | 2013-03-06 | 益阳祥瑞科技有限公司 | Polyurea floor coating |
| CN112409911A (en) * | 2020-11-27 | 2021-02-26 | 四川蜀羊防水材料有限公司 | Polyurethane waterproof coating capable of being used on wet base surface and preparation method thereof |
| WO2023240945A1 (en) * | 2022-06-17 | 2023-12-21 | 中车株洲车辆有限公司 | Polyurea coating and preparation method therefor |
-
2024
- 2024-01-17 CN CN202410065315.8A patent/CN117844359A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995032231A1 (en) * | 1994-05-20 | 1995-11-30 | Asahi Kasei Kogyo Kabushiki Kaisha | Linear crystalline polyuretedione |
| CN1952024A (en) * | 2005-10-17 | 2007-04-25 | 德古萨公司 | Powder coating compositions with crystalline constituents that are stable in storage |
| CN102952458A (en) * | 2012-11-29 | 2013-03-06 | 益阳祥瑞科技有限公司 | Polyurea floor coating |
| CN112409911A (en) * | 2020-11-27 | 2021-02-26 | 四川蜀羊防水材料有限公司 | Polyurethane waterproof coating capable of being used on wet base surface and preparation method thereof |
| WO2023240945A1 (en) * | 2022-06-17 | 2023-12-21 | 中车株洲车辆有限公司 | Polyurea coating and preparation method therefor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107778450B (en) | Fluorine modified low free toluene diisocyanate polyurethane curing agent and preparation method thereof | |
| CN102050836A (en) | Phosphorus-containing polyisocyanate and preparation method thereof | |
| CN103540254B (en) | A kind of preparation method of single-component water-cured polyurethane waterproof coating | |
| CN110499096B (en) | Single-component root-puncture-resistant waterproof coating and preparation method thereof | |
| CN104194610A (en) | Self-crosslinked one-component polyurethane waterproofing coating | |
| CN110387028A (en) | A kind of preparation method of the whisker modified aqueous polyurethane of carboxylated nano-cellulose | |
| CN101831236A (en) | Aqueous metallic basecoat and preparation method thereof | |
| CN110511662A (en) | A kind of double-composition polyurethane waterproof paint and preparation method thereof | |
| CN117844359A (en) | Moisture-resistant brushing, weather-resistant and ageing-resistant super-flowered polyurethane coating and preparation method thereof | |
| CN111423795A (en) | Environment-friendly waterproof building coating for wall surface and preparation method thereof | |
| CN112980151B (en) | Organic silicon modified polyester resin with tensile toughness and preparation method thereof | |
| CN110872372B (en) | Six-functional-group acrylic polyurethane containing triazine ring and preparation method and application thereof | |
| CN109777269B (en) | Single-component polyurea coating for water, electricity and water utilization and preparation method thereof | |
| CN112300691B (en) | Preparation method of reed-based polyol polyurethane coating material | |
| CN116554823A (en) | Waterproof polyurethane adhesive and preparation method thereof | |
| CN116875169A (en) | Waterproof corrosion-resistant water paint and preparation method thereof | |
| CN105199068B (en) | Urethane acrylate synthesis technology | |
| CN107118326B (en) | Method for preparing waterborne polyurethane film forming material from mixture of glucose and castor oil | |
| CN114702419A (en) | Preparation method of aliphatic monomer containing disulfide bond | |
| CN115093375B (en) | Preparation and application methods of m-xylylene diisocyanate trimer | |
| CN112898533A (en) | Multi-curing polyurethane latent curing agent and preparation method thereof | |
| CN113105262A (en) | Environment-friendly surface functional material for building stone maintenance and preparation method thereof | |
| CN112079740A (en) | Synthesis method and application of asparagus resin and aqueous asparagus polyurea | |
| CN109735225B (en) | High-gloss environment-friendly paint for woodware and preparation method thereof | |
| CN110117478A (en) | A kind of neutral silicone weather proofing sealant 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 |