CN118085224B - High-solid low-viscosity low-VOC (volatile organic compound) good-extinction odor-removal resin and preparation method thereof - Google Patents
High-solid low-viscosity low-VOC (volatile organic compound) good-extinction odor-removal resin and preparation method thereof Download PDFInfo
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- CN118085224B CN118085224B CN202410308286.3A CN202410308286A CN118085224B CN 118085224 B CN118085224 B CN 118085224B CN 202410308286 A CN202410308286 A CN 202410308286A CN 118085224 B CN118085224 B CN 118085224B
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- 229920005989 resin Polymers 0.000 title claims abstract description 39
- 239000011347 resin Substances 0.000 title claims abstract description 39
- 239000007787 solid Substances 0.000 title claims abstract description 18
- 239000012855 volatile organic compound Substances 0.000 title abstract description 18
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 239000002131 composite material Substances 0.000 claims abstract description 27
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000002994 raw material Substances 0.000 claims abstract description 18
- 229920005862 polyol Polymers 0.000 claims abstract description 15
- 150000003077 polyols Chemical class 0.000 claims abstract description 15
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 13
- 229920000570 polyether Polymers 0.000 claims abstract description 13
- 229920000180 alkyd Polymers 0.000 claims abstract description 10
- 230000008033 biological extinction Effects 0.000 claims abstract description 10
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims abstract description 9
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 claims abstract description 7
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 claims abstract description 7
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims abstract description 7
- 150000004072 triols Chemical class 0.000 claims abstract description 3
- 239000002023 wood Substances 0.000 claims description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 9
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 claims description 8
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 239000000376 reactant Substances 0.000 claims description 6
- 239000003085 diluting agent Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 239000002270 dispersing agent Substances 0.000 claims description 3
- 239000002518 antifoaming agent Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims 3
- FUZZWVXGSFPDMH-UHFFFAOYSA-M hexanoate Chemical compound CCCCCC([O-])=O FUZZWVXGSFPDMH-UHFFFAOYSA-M 0.000 abstract description 6
- 230000004913 activation Effects 0.000 abstract description 5
- 239000000853 adhesive Substances 0.000 abstract description 5
- 230000001070 adhesive effect Effects 0.000 abstract description 5
- 238000001035 drying Methods 0.000 abstract description 5
- 239000002861 polymer material Substances 0.000 abstract description 2
- 239000004922 lacquer Substances 0.000 description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- 238000009472 formulation Methods 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 238000010992 reflux Methods 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000003973 paint Substances 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000013530 defoamer Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- 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
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/68—Unsaturated polyesters
-
- 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
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
-
- 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
-
- 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
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
- C08G18/6677—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203 having at least three hydroxy groups
-
- 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
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Paints Or Removers (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention belongs to the field of high polymer materials, and particularly relates to a high-solid low-viscosity low-VOC (volatile organic compound) good-extinction odor-removal resin and a preparation method thereof. The preparation raw materials of the odor removing resin comprise: and (3) a component A: bio-based polyols, polyether triols, trimethylol propane, neopentyl glycol, toluene diisocyanate; and the component B comprises the following components: ethyl acetate, butyl acetate; and C, component: alkyd resin; wherein the mass ratio of the component A to the component B to the component C is 1 (0.34-0.41) to 1-2. The composite odor removing resin provided by the invention has the advantages of high solid content, low viscosity, high hardness, long activation period, quick surface drying, extremely quick odor dissipation, easiness in extinction and excellent flexibility and adhesive force.
Description
Technical Field
The invention belongs to the field of high polymer materials, and particularly relates to a high-solid low-viscosity low-VOC (volatile organic compound) good-extinction odor-removal resin and a preparation method thereof.
Background
Along with the increasing environmental awareness, the environmental protection performance requirements of people on chemical products such as paint, adhesives and the like are also higher. Traditional resin materials often have higher Volatile Organic Compound (VOC) content, which not only causes pollution to the environment, but also causes harm to human health. Therefore, developing a low VOC, low viscosity, high solids odor removal resin has become an important research direction in the current chemical industry.
At present, some low-VOC resin products exist on the market, but the problems of higher viscosity, lower solid content and the like of the products often exist, so that the use effect of the products in practical application is affected. Meanwhile, the poor extinction performance of the resin often leads to the excessively high glossiness of the surface of the coating, and influences the appearance quality of the product.
Therefore, aiming at the problems, the invention provides the high-solid low-viscosity low-VOC (volatile organic compound) good extinction odor eliminating resin and a preparation method thereof. The resin has the advantages of low viscosity, high solid content, low VOC content and the like, and simultaneously can realize good extinction effect, so that the surface of the coating has better appearance quality.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a composite odor removing resin which has the properties of high solid content, low viscosity, high hardness, long activation period, quick surface drying, extremely quick odor dissipation, easy extinction and excellent flexibility and adhesive force.
In order to achieve the above purpose, the present invention provides the following technical solutions:
in a first aspect, the present invention provides a composite odor-removing resin, the preparation raw materials comprising:
and (3) a component A: bio-based polyols, polyether triols, trimethylol propane, neopentyl glycol, toluene diisocyanate;
and the component B comprises the following components: ethyl acetate, butyl acetate;
And C, component: alkyd resin;
Wherein the mass ratio of the component A to the component B to the component C is 1 (0.34-0.41) to 1-2.
Further, the mass ratio of the ethyl acetate to the butyl acetate in the component B is (4-5): 1.
Further, the bio-based polyol is at least one of FHB-2502 bio-based polyol and FHB-275 bio-based polyol.
Further, the component A comprises the following components in parts by weight:
Further, the molecular weight of the polyether triol is 300-600.
Further, the hydroxyl content of the alkyd resin is less than or equal to 5%, the acid value is less than or equal to 20mgKOH/g, the viscosity is less than or equal to 3000 mPa.s, and the solid content is more than or equal to 70%.
In a second aspect, the present invention provides a method for preparing the composite odor-removing resin according to the first aspect, comprising the steps of:
(1) In a protective gas environment, adding bio-based polyol, polyether triol, trimethylolpropane, neopentyl glycol, ethyl acetate and butyl acetate into a reaction container, heating and dissolving, and stirring to obtain a mixture a;
(2) Stopping heating, dropwise adding toluene diisocyanate into the mixture a in a protective gas environment for reaction, and keeping the temperature for more than 30 minutes to obtain a reactant b;
(3) And mixing the reactant b after cooling with the alkyd resin to obtain the composite odor-removing resin.
In a third aspect, the present invention provides the use of the composite odour-control resin of the first aspect in a coating.
Further, the coating is a woodware coating.
In a fourth aspect, the invention provides a high-solid low-viscosity low-VOC (volatile organic compound) good-extinction coating, which comprises the composite odor-removing resin in the first aspect and at least one of a flatting agent, a curing agent, a diluent, an extinction powder and an antifoaming agent.
The invention has the beneficial effects that:
The double-component PU wood lacquer prepared by the composite odor removing resin has the advantages of high solid content, low viscosity, high hardness, long activation period, quick surface drying, extremely quick odor dissipation, easy extinction and excellent flexibility and adhesive force.
Detailed Description
The following are specific embodiments of the present invention, and the technical solutions of the present invention will be further described with reference to the embodiments, but the present invention is not limited to these embodiments.
Unless otherwise specified, the reagents used in the embodiments were all from commercial sources and were not subjected to any pretreatment prior to use.
Example 1
The preparation method of the composite odor removal resin comprises the following steps of:
Step (1), checking the reflux reaction kettle, ensuring that a bottom valve is closed, heating is normal, cleaning the inside of the kettle, and then introducing nitrogen for 20min at a flow rate of 5L/min to replace gas in the reflux reaction kettle;
step (2), adding bio-based polyol, polyether triol, trimethylolpropane, neopentyl glycol, ethyl acetate and butyl acetate into a reflux reaction kettle through a solid feeding port, and sealing the feeding port; introducing nitrogen for 15min at the flow rate of 5L/min, and carrying out gas replacement in the reflux reaction kettle;
step (3), heating the system obtained in the step (2) to 80 ℃ under the protection of nitrogen with the flow rate of 5L/min, and after the reflux phenomenon of the system occurs; the nitrogen flow is regulated to 1L/min, and stirring is started;
Step (4), nitrogen is introduced at the speed of 1L/min, and stirring is continued; simultaneously heating the system obtained in the step (3) to 110 ℃ at a heating rate of 0.5 ℃/min, and uniformly stirring to obtain a mixture a;
Stopping heating, closing nitrogen, slowly adding toluene diisocyanate into the mixture a, and continuing to react for 30-60min to obtain a reactant b;
and (6) cooling the reactant b to 50 ℃ in a nitrogen atmosphere, and adding alkyd resin to mix uniformly to obtain the composite odor-removing resin.
Wherein the method comprises the steps of
The polyether triol is polyether triol DV-125, and has a hydroxyl value: 440-460mgkOH/g, moisture: less than or equal to 0.08 percent, pH:5-8, viscosity: 300-500 mPa.s/25 ℃ functionality: 3, molecular weight: 375, 375;
Alkyd resin is 543HV XX-70 soybean oil modified short oil alkyd resin;
The polyether glycol is polyether glycol 3130, and has a hydroxyl value: 110mgkOH/g, viscosity: 800 mPa.s/25 ℃ and molecular weight: 1000;
Hydroxyl number of biobased polyol FHB-2502: 250+ -20 mgkOH/g, viscosity: 250+ -100 mPa.s/25℃and acid value: less than or equal to 10.0mgkOH/g;
Hydroxyl number of biobased polyol FHB-275: 275+/-20 mgkOH/g, viscosity: 250+ -100 mPa.s/25℃and acid value: less than or equal to 5.0mgkOH/g.
Table 1 raw material components of the composite odor eliminating resin.
Note that: in the table, the "-" indicates no addition.
Example 2
The present example prepared a composite odor-free resin, specifically differing from example 1 in the raw material ratios, specifically the raw material ratios shown in table 1.
Example 3
The present example prepared a composite odor-free resin, specifically differing from example 1 in the raw material ratios, specifically the raw material ratios shown in table 1.
Example 4
The present example prepared a composite odor-free resin, specifically differing from example 1 in the raw material ratios, specifically the raw material ratios shown in table 1.
Example 5
The present example prepared a composite odor-free resin, specifically differing from example 1 in the raw material ratios, specifically the raw material ratios shown in table 1.
Example 6
The present example prepared a composite odor-free resin, specifically differing from example 1 in the raw material ratios, specifically the raw material ratios shown in table 1.
Example 7
The present example prepared a composite odor-free resin, specifically differing from example 1 in the raw material ratios, specifically the raw material ratios shown in table 1.
Example 8
The present example prepared a composite odor-free resin, specifically differing from example 1 in the raw material ratios, specifically the raw material ratios shown in table 1.
Performance testing
1. The main paint formulation is shown in table 2.
Table 2 main paint formulation
| Component (A) | Mass percent/% |
| Composite odor-removing resin | 80 |
| DH-6327 dispersant | 0.7 |
| Defoamer DT-9825 | 0.4 |
| Extinction powder (Gray matt powder ED 30) | 4.8 |
| Wax powder (AKD 1840 type) | 1.0 |
| Anti-settling agent (DH 6900) | 1.0 |
| Leveling agent (DH 4210) | 1.2 |
| Solvent (propylene glycol methyl ether acetate) | 10.9 |
Note that: the dispersing agent, the anti-settling agent and the leveling agent are purchased from new materials of Qingdan, suzhou, the defoamer is purchased from field chemistry, and the matting powder is purchased from Yi Punuo chemical industry, shenzhen, inc.
2. Curing agent formulations, as shown in Table 3
TABLE 3 curing agent formulation
3. The diluent formulation is shown in Table 4
Table 4 diluent formulation
| Component (A) | Mass percent/% |
| Butyl acetate | 30 |
| Xylene (P) | 20 |
| Propylene glycol methyl ether acetate | 50 |
4. The wood lacquer is prepared from the following main lacquer in percentage by mass: curing agent: diluent = 1:0.8:0.3 configuration, the results of the wood lacquer performance test are shown in table 5.
5. Performance test method
Wood lacquer hardness is tested according to national standard GB/6379-2006;
Determining the adhesive force of wood lacquer according to the standard ISO2409-2007 Chinese edition;
determining the glossiness of the wood lacquer according to the national standard GB/T9754-2007;
according to the national standard GB/1731-93, the flexibility of the wood lacquer is measured;
Determining the VOC content of the wood lacquer according to the national standard GB/T23984-2009;
determining the solid content of the resin according to the national standard GB/T1725-1989;
The viscosity of the wood lacquer is measured according to the national standard GB/T1725-1989;
according to the national standard GB 1728, determining the drying speed of the wood lacquer;
the wood lacquer activation period was determined according to national standard GB/T23997-2009.
Table 5 results of the Performance test of the Wood lacquer
Analysis of results:
As can be seen from the results in Table 5, the two-component PU wood lacquer prepared from the composite odor-removing resin has the advantages of high solid content, low viscosity, high hardness, long activation period, quick surface drying, extremely quick odor dissipation, easy extinction, excellent flexibility and adhesion, and can be applied to the two-component PU wood lacquer.
It should be noted that the above-disclosed embodiments merely represent technical solutions for illustrating the present invention, and are not intended to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications, various changes, and equivalents may be made without departing from the scope of the technical solutions of the present invention.
Claims (7)
1. The composite odor removing resin is characterized by comprising the following raw materials:
and (3) a component A: bio-based polyols, polyether triols, trimethylol propane, neopentyl glycol, toluene diisocyanate;
and the component B comprises the following components: ethyl acetate, butyl acetate;
And C, component: alkyd resin;
wherein the mass ratio of the component A to the component B to the component C is 1 (0.34-0.41) to 1-2;
The mass ratio of the ethyl acetate to the butyl acetate in the component B is (4-5) 1;
the component A comprises the following components in parts by mass:
10-15 parts of bio-based polyol;
3-5 parts of polyether triol;
4-7 parts of trimethylolpropane;
2-4 parts of neopentyl glycol;
13 parts of toluene diisocyanate;
the bio-based polyol is at least one of FHB-2502 bio-based polyol and FHB-275 bio-based polyol.
2. A composite odor-removing resin according to claim 1, wherein said polyether triol has a molecular weight of 300-600.
3. The composite odor-removing resin according to claim 1, wherein said alkyd resin has a hydroxyl content of 5% or less, an acid value of 20 mgKOH/g or less, a viscosity of 3000 mPa s or less, and a solids content of 70% or more.
4. A method of preparing a composite odour-control resin according to any one of claims 1-3, comprising the steps of:
(1) In a protective gas environment, adding bio-based polyol, polyether triol, trimethylolpropane, neopentyl glycol, ethyl acetate and butyl acetate into a reaction container, heating and dissolving, and stirring to obtain a mixture a;
(2) Stopping heating, adding toluene diisocyanate into the mixture a in a protective gas environment for reaction, and keeping the temperature for more than 30 minutes to obtain a reactant b;
(3) And mixing the reactant b after cooling with the alkyd resin to obtain the composite odor-removing resin.
5. Use of a composite odour-control resin according to any one of claims 1-3 in a coating.
6. The use according to claim 5, wherein the coating is a wood coating.
7. A high-solid low-viscosity low-VOC good-extinction coating, which is characterized by comprising the composite odor-removing resin according to any one of claims 1-3 and at least one of dispersing agent, anti-settling agent, leveling agent, curing agent, diluent, extinction powder and defoaming agent.
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| CN202410308286.3A CN118085224B (en) | 2024-03-18 | 2024-03-18 | High-solid low-viscosity low-VOC (volatile organic compound) good-extinction odor-removal resin and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR8704264A (en) * | 1986-02-22 | 1989-02-28 | Saint Gobain Vitrage | TRANSPARENT COATING LAYER FOR GLASSES OR OTHER TRANSPARENT GLASS OR SYNTHETIC RESIN SUBSTRATES |
| CN117487114A (en) * | 2023-11-27 | 2024-02-02 | 中国科学院青岛生物能源与过程研究所 | Zein modified bio-based polyurethane soft foam material and preparation method thereof |
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| US11884768B2 (en) * | 2017-10-31 | 2024-01-30 | Basf Se | Methods and compositions for forming elastomeric polyurethane articles and associated elastomeric polyurethane articles formed therefrom |
| CN111019077B (en) * | 2019-12-27 | 2021-12-24 | 红宝丽集团股份有限公司 | Solvent-free polyurethane dispersion with controllable particle size and aqueous polyurethane coating liquid |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR8704264A (en) * | 1986-02-22 | 1989-02-28 | Saint Gobain Vitrage | TRANSPARENT COATING LAYER FOR GLASSES OR OTHER TRANSPARENT GLASS OR SYNTHETIC RESIN SUBSTRATES |
| CN117487114A (en) * | 2023-11-27 | 2024-02-02 | 中国科学院青岛生物能源与过程研究所 | Zein modified bio-based polyurethane soft foam material and preparation method thereof |
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| CN118085224A (en) | 2024-05-28 |
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