CN103614060A - Polyurethane brilliant white finish based on construction tolerance - Google Patents
Polyurethane brilliant white finish based on construction tolerance Download PDFInfo
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- CN103614060A CN103614060A CN201310593835.8A CN201310593835A CN103614060A CN 103614060 A CN103614060 A CN 103614060A CN 201310593835 A CN201310593835 A CN 201310593835A CN 103614060 A CN103614060 A CN 103614060A
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Abstract
The invention provides a polyurethane brilliant white finish based on construction tolerance. The polyurethane brilliant white finish is prepared from mixing three components A, B and C in the weight ratio of 1: (0.6-0.8): (0.4-0.6), wherein the component A is prepared from a color paste which is prepared from a 60% aldehyde ketone resin solution and good in compatibility, a synthetic fatty acid resin, a wetting dispersant, an acrylic flatting agent, an organic silicon flatting agent, an organic silicon defoamer and an organic solvent; the component B is prepared from n-butyl acetate, xylene, a TDI (Toluene Di-Isocynate) adduct curing agent, a TDI tripolymer curing agent and an HDI tripolymer curing agent; the component C, which is a diluent, is prepared from n-butyl ester, propylene glycol methyl ether acetate, ethyl acetate and xylene. The polyurethane brilliant white finish based on construction tolerance has the advantages that the drying speed of a paint film at a high temperature and under high pressure is increased, the environmental tolerance and the construction tolerance of the product in use are improved, and the defects such as wrinkling, heat rash and bubbles easily caused by the drying speed of the paint film in the coating process in the environment of high temperatures and high pressure can be overcome.
Description
Technical field
The invention belongs to woodwork coating production, be specifically related to a kind of polyurethanes light white finish paint based on construction tolerance.
Background technology
Polyurethanes light white finish paint has high gloss and splendid decorative effect, in decoration material by people's widespread use.The light white finish paint of quality parameter excellence requires to have splendid levelling property, high fullness ratio, high rigidity, resistance toly scald, stain resistant and outstanding anti-yellowing property, to meet the needs such as anti-scratch in use procedure, wear-resisting and easy scouring.In order to reach satisfied construction effect, for construction environment, there is very high requirement, the humiture during as construction, amount of dust etc.
The polyurethanes light white finish paint generally using is at present used the resin of synthetic fatty acid, coconut oils to be prepared conventionally, these products improved product levelling property, there is the performances such as high fullness ratio and high rigidity, also there is common feature, i.e. slower rate of drying.In furniture application, enter after batch production, it is particularly important that coating efficiency seems.Although rate of drying can be realized good leveling property and high fullness ratio slowly, also cause the reduction of production line coating efficiency simultaneously.As everyone knows, polyurethane coating is in drying varniss process, silicone based surperficial control agent migrates to coating surface in film process, add when hydroxyl is followed isocyanate reaction and can produce carbonic acid gas, especially under hot and humid condition, in paint film surface drying, dry phenomenon seems particularly outstanding, make surface produce the disadvantages such as prickly heat and dark bubble, and has increased the probability that the dust granules in construction environment sticks to coating surface.
The rate of drying existing for light white finish paint and the problem of fullness ratio, high, the poor technical problem of construction tolerance that construction environment requires, need provide a kind of effective technological method to make it have range of application and excellent painting effect more widely.
Summary of the invention
The object of the invention is: a kind of polyurethanes light white finish paint based on construction tolerance is provided, to solve construction environment, requires the problem high, environment tolerance is poor, rate of drying is slow, adapt to the construction demand of the efficient quick of wood furniture under varying environment.
The titanium dioxide slurry that the present invention utilizes aldehyde ketone resin solution to make has good consistency and pigment wettability, given the desirable fullness ratio of coating and good drying property, made the paint film after construction there is high gloss, high rigidity, desirable rate of drying, excellent yellowing resistance and weather resistance.
The present invention is by A, B, C tri-components 1:(0.6 ~ 0.8 by weight ratio): (0.4 ~ 0.6) is mixed with and forms, and main method is as follows:
A component:
Wherein, the preparation of 60% titanium dioxide slurry:
Wherein, 60% aldehyde ketone resin solution:
。
Preferably, described aldehyde ketone resin is particulate matter, and more preferably BASF China produces aldehyde ketone resin.
Preferably, it consolidates described synthetic fat acid resin containing being 80 ± 2%, and viscosity is 40000 ± 5000 mpa.s/25 ℃, the synthetic fat acid resin that more preferably Changxing chemical industry (Guangdong) company limited produces.
Preferably, described titanium dioxide is Rutile type Titanium Dioxide, and oil number is 23 ± 3 g/100g, the model 595 of producing as Australian Mei Lilian company.
Preferably, described wetting dispersing agent is for containing the copolymer solution of acidic-group, more preferably the BYK-110 of German Bi Ke company.
Preferably, described esters of acrylic acid flow agent is the EFKA-3777 of German EFKA company.
Preferably, described silicone based flow agent is the BYK-333 of German Bi Ke company.
Preferably, described defoamer is silicone based defoamer, more preferably the BYK-141 of German Bi Ke company.
B component:
Preferably, described TDI affixture solidifying agent is that the model that Chemical Bayer Ltd. produces is Desmodur L-75.
Preferably, described TDI trimer curing agent is the Desmodur IL 1451 that Chemical Bayer Ltd. produces.
Preferably, described HDI trimer curing agent be the CORONATE HX-90B that produces of Japanese polyurethane company limited or Chemical Bayer Ltd. produce 3390.
Preferably, the positive butyl ester of described dehydration acetate is urethane level solvent.
C component:
。
The preparation method of described A component is as follows:
Select clean standard compliant dispersion cylinder, drop into successively by weight percentage 60% titanium dioxide slurry 50% ~ 70%, synthetic fat acid resin 27% ~ 45%, organosilicon dispersion agent 1% ~ 1.5%, esters of acrylic acid flow agent 0.5% ~ 1%, silicone based flow agent 0.1% ~ 0.2%, defoamer 0.1% ~ 0.3%, 1-Methoxy-2-propyl acetate 0.5% ~ 1%, start dispersion machine, after low speed (600 ~ 800 r/min) is uniformly dispersed, (1200 ~ 1500 r/min) disperses 10 ~ 15min at a high speed, to fineness≤20 μ m, 1-Methoxy-2-propyl acetate 0.5% ~ 1% is adjusted viscosity, viscosity: 3000 ~ 4000mpa.s/25 ℃, make A component.
Wherein, being prepared as follows of described 60% titanium dioxide slurry:
Select clean standard compliant dispersion cylinder, add successively by weight percentage 60% aldehyde ketone resin solution 34% ~ 37%, wetting dispersing agent 1% ~ 2%, dimethylbenzene 1% ~ 2%, middling speed (600 ~ 800 r/min) dispersed with stirring is even, and low speed (600 ~ 800 r/min) adds titanium dioxide 60% under stirring, (1200 ~ 1500 r/min) dispersed with stirring at a high speed, cross sand milling to fineness≤20 μ m, add 1-Methoxy-2-propyl acetate 1% ~ 2% to adjust viscosity, viscosity is 5000 ~ 8000mpa.s/25 ℃.
Wherein, being prepared as follows of described 60% aldehyde ketone resin solution:
Select clean standard compliant dispersion cylinder, add by weight percentage aldehyde ketone resin 60%, N-BUTYL ACETATE 40%, disperses to be stirred to aldehyde ketone resin and dissolves completely, without granule foreign, filters stand-by.
Described B method for preparing ingredients thereof is as follows:
Select clean standard compliant dispersion cylinder, add successively by weight percentage dimethylbenzene 15% ~ 20%, n-butyl acetate 21% ~ 33%, be warming up to after 90 ℃ of dehydrations, add TDI affixture solidifying agent 27% ~ 35%, TDI trimer curing agent 8% ~ 12%, HDI trimer curing agent 8% ~ 12%, start and stir 30 min to being uniformly dispersed, cooling discharge sealing after 70 ℃ of insulations.
Described C method for preparing ingredients thereof is as follows:
Select clean standard compliant dispersion cylinder, add successively by weight percentage dimethylbenzene 45% ~ 50%, n-butyl acetate 20% ~ 25%, 1-Methoxy-2-propyl acetate 10% ~ 15%, vinyl acetic monomer 10% ~ 15%, is stirred well to and mixes, stand-by.
The construction proportioning of A component, B component, C component is 1:(0.6 ~ 0.8 by weight): (0.4 ~ 0.6), wherein C component does not participate in chemical reaction as thinner, only rises and adjusts rare construction action.
Using method: A, B, C tri-components are uniformly mixed by proportioning, by the method for spraying, brushing, roller coat or showering, wood substrate are constructed.
The present invention is based on the polyurethanes light white finish paint of construction tolerance, utilize the feature that aldehyde ketone resin drying speed is fast, gloss is high, by with the synthetic fatty acid use of arranging in pairs or groups, in conjunction with the feature good with HDI trimer curing agent yellowing resistance, flexility is excellent, accelerated the rate of drying of paint film, improved environment tolerance, made it under hot and humid execution conditions, to there is fast rate of drying.In film process under hot and humid condition, the lifting of drying varniss speed, allow the response type bubble generating can overflow fast coating surface, reduce the delay of paint film air entrapment, avoid occurring prickly heat, dark bubble, the poor construction effect of levelling property because rate of drying causes paint film slowly.Compare with current light white finish paint, strong covering power, hardness are high except having for coating of the present invention, the feature of high gloss and high fullness ratio, workability excellence, also have three outstanding performance advantages:
One, environment tolerance is high, can thickly be coated with, and has excellent construction tolerance, can adapt in varying environment, carries out application in especially hot and humid environment.
Its two, rate of drying is fast.Fast rate of drying can make the CO producing in film process
2bubble overflows coating surface fast, reduce coating internal voids, make coating inner consistent with surperficial rate of drying, dry can from inside to outside carrying out, thereby paint film has good levelling effect, avoid the not dry paint film that causes in outer doing to occur the disadvantages such as orange peel, prickly heat, dark bubble.
Its three, fast rate of drying has reduced the probability that koniology sticks to coating surface, reduces the flaw of paint film painting effect, makes the coating surface Paint Gloss.
Each performance index of polyurethanes light white finish paint that the present invention is based on construction tolerance are as follows, and wherein performance project detects reference standard GB/T23997-2009, and hazardous and noxious substances detects reference standard GB18581-2009.
Embodiment
Below with reference to specific embodiment, the present invention is further elaborated.It should be noted that; following examples are only preferential embodiment of the present invention; be only part embodiment of the present invention; those of ordinary skill in the art is not departing under the prerequisite of creative spirit of the present invention and research and development thinking; any improvement and deduction that does not possess creative variation of making, all should belong to protection scope of the present invention.
In following examples, described aldehyde ketone resin is that BASF China produces aldehyde ketone resin; Described synthetic fat acid resin is the synthetic fat acid resin that Changxing chemical industry (Guangdong) company limited produces; Described titanium dioxide is model 595 titanium dioxides that Australian Mei Lilian company produces; Described organosilicon dispersion agent is the BYK-110 of German Bi Ke company; Described esters of acrylic acid flow agent is the EFKA-3777 of German EFKA company; Described silicone based flow agent is the BYK-333 of German Bi Ke company; Described defoamer is the BYK-141 of German Bi Ke company; The model that described TDI affixture solidifying agent, TDI trimer curing agent are Chemical Bayer Ltd.'s production is respectively Desmodur L-75, Desmodur IL 1451; Described HDI trimer curing agent be the CORONATE HX-90B that produces of Japanese polyurethane company limited or Chemical Bayer Ltd. produce 3390; The positive butyl ester of described dehydration acetate is urethane level solvent.
In following examples, the preparation of described 60% titanium dioxide slurry is adopted with the following method:
Select clean standard compliant dispersion cylinder, add successively by weight percentage 60% aldehyde ketone resin solution 35%, organosilicon dispersion agent 2%, dimethylbenzene 2%, middling speed (600 ~ 800 r/min) dispersed with stirring is even, and low speed (600 ~ 800 r/min) adds titanium dioxide 60% under stirring, (1200 ~ 1500 r/min) dispersed with stirring at a high speed, to fineness≤20 μ m, add 1-Methoxy-2-propyl acetate 1% to adjust viscosity, viscosity is 5000 ~ 8000mpa.s/25 ℃.
In following examples, the preparation of described 60% aldehyde ketone resin solution is adopted with the following method:
Select clean standard compliant dispersion cylinder, add by weight percentage aldehyde ketone resin 60%, N-BUTYL ACETATE 40%, disperses to be stirred to aldehyde ketone resin and dissolves completely, without granule foreign, filters stand-by.
Embodiment 1
Raw material and the weight percent of A component are as follows:
Raw material and the weight percent of B component are as follows:
Raw material and the weight percent of C component are as follows:
The preparation method of described A component is as follows:
Select clean standard compliant dispersion cylinder, drop into successively 60% titanium dioxide slurry 50 kg, synthetic fat acid resin 45 kg, dispersant B YK-110 1.5 kg, flow agent EFKA-3777 1 kg, flow agent BYK-333 0.2 kg, defoamer BYK-141 0.3 kg, 1-Methoxy-2-propyl acetate 1 kg, start dispersion machine, after low speed (600 ~ 800 r/min) is uniformly dispersed, (1200 ~ 1500 r/min) disperses 10 ~ 15 min at a high speed, to fineness≤20 μ m, with 1-Methoxy-2-propyl acetate, 1 kg adjusts viscosity, viscosity: 3000 ~ 4000 mpa.s/25 ℃.
Described B method for preparing ingredients thereof is as follows:
Select clean standard compliant dispersion cylinder, add successively dimethylbenzene 20 kg, positive butyl ester 21 kg of dehydration acetate, be warming up to after 90 ℃ of dehydrations, add solidifying agent L-75 35 kg, solidifying agent 1,451 12 kg, solidifying agent HX-90B 12 kg, start and stir 30 min to being uniformly dispersed, cooling discharge sealing after 70 ℃ of insulations.
Described C method for preparing ingredients thereof is as follows:
Select clean standard compliant dispersion cylinder, add successively dimethylbenzene 45 kg, n-butyl acetate 25 kg, 1-Methoxy-2-propyl acetate 15 kg, vinyl acetic monomer 15 kg, are stirred well to and mix, stand-by.
The weight proportion of A, B, tri-components of C is 1:0.8:0.4, and wherein C component does not participate in chemical reaction as thinner, only rises and adjusts rare construction action.
Using method: A, B, C tri-components are uniformly mixed by proportioning, by the method for spraying, brushing, roller coat or showering, wood substrate are constructed.
Embodiment 2
According to table 1, be ready to raw material, adopt the method identical with embodiment 1 to prepare respectively A, B, each component of C.
Table 1:
The proportioning of A, B, tri-components of C is 1:0.6:0.4, and wherein C component does not participate in chemical reaction as thinner, only rises and adjusts rare construction action.
Using method: A, B, C tri-components are uniformly mixed by proportioning, by the method for spraying, brushing, roller coat or showering, wood substrate are constructed.
Embodiment 3
According to table 2, be ready to raw material, adopt the method identical with embodiment 1 to prepare respectively A, B, each component of C.
Table 2:
The proportioning of A, B, tri-components of C is 1:0.6:0.6, and wherein C component does not participate in chemical reaction as thinner, only rises and adjusts rare construction action.
Using method: A, B, C tri-components are uniformly mixed by proportioning, by the method for spraying, brushing, roller coat or showering, wood substrate are constructed.
Embodiment 4
According to table 3, be ready to raw material, adopt the method identical with embodiment 1 to prepare respectively A, B, each component of C.
Table 3:
The proportioning of A, B, tri-components of C is 1:0.8:0.6, and wherein C component does not participate in chemical reaction as thinner, only rises and adjusts rare construction action.
Using method: A, B, C tri-components are uniformly mixed by proportioning, by the method for spraying, brushing, roller coat or showering, wood substrate are constructed.
Application examples:
After A in embodiment 1, B, C tri-components are evenly mixed according to weight proportion 1:0.8:0.4, on wooden ground MDF plate, adopt spraying method to test under different temperature and humidity conditions, in different construction environment, construction tolerance of the present invention is tested, result is as shown in table 4.
As can be seen from the experiment, the present invention, under home, has fast drying rate, and coating surface effect is normal, has preferably levelling property and fullness ratio, excellent combination property.In test 1, identical with normal condition humidity, in the situation of rising temperature, rate of drying is obviously accelerated, on not impact of paint film property.In test 2, temperature-resistant with normal condition, strengthen ambient moisture, rate of drying slows down, and over-all properties is without impact.In test 3, promote the temperature and humidity of environment simultaneously, under hot and humid condition, rate of drying slows down to some extent, and paint film over-all properties is without impact.To sum up, the polyurethanes light white finish paint that the present invention is based on construction tolerance has very high environment tolerance, the tolerant performance of outstanding construction, reduced the requirement to construction environment, can adapt in various environment, especially the woodwork coating under hot and humid condition, the levelling effect that coating has had and high gloss, high fullness ratio, high rigidity, excellent combination property.
Table 4:
Claims (9)
1. the urethane light white finish paint based on construction tolerance, is characterized in that, formulated by A, B, C tri-components, wherein the raw material of A component and weight percent are:
60% titanium dioxide slurry 50% ~ 70% synthetic fat acid resin 27% ~ 45%
Wetting dispersing agent 1% ~ 1.5% esters of acrylic acid flow agent 0.5% ~ 1%
The silicone based defoamer 0.1% ~ 0.3% of silicone based flow agent 0.1% ~ 0.2%
1-Methoxy-2-propyl acetate 1% ~ 2%
The raw material of B component and weight percent are:
TDI affixture solidifying agent 27% ~ 35% TDI trimer curing agent 8% ~ 12%
HDI trimer curing agent 8% ~ 12% dimethylbenzene 15% ~ 20%
The positive butyl ester 21% ~ 33% of dehydration acetate
The raw material of C component and weight percent are:
Dimethylbenzene 45% ~ 50% n-butyl acetate 20% ~ 25%
1-Methoxy-2-propyl acetate 10% ~ 15% vinyl acetic monomer 10% ~ 15%.
According to claim 1 based on construction tolerance urethane light white finish paint, it is characterized in that, the preparation of described 60% titanium dioxide slurry is mainly comprised of following raw materials by weight: 60% aldehyde ketone resin solution 34% ~ 37%, wetting dispersing agent 1% ~ 2%, dimethylbenzene 1% ~ 2%, titanium dioxide 60%, 1-Methoxy-2-propyl acetate 1% ~ 2%.
3. according to the urethane light white finish paint based on construction tolerance described in claim 1 and 2, it is characterized in that, described 60% aldehyde ketone resin solution is uniformly mixed and is prepared from by 60% aldehyde ketone resin and 40% N-BUTYL ACETATE.
4. the urethane light white finish paint based on construction tolerance according to claim 1, is characterized in that, during application, the weight proportion of A, B, C tri-components is 1:(0.6-0.8): (0.4-0.6).
5. the urethane light white finish paint based on construction tolerance according to claim 1, is characterized in that, the fineness≤20 μ m of A component, and viscosity is 3000 ~ 4000 mpa.s in the time of 25 ℃.
6. according to the urethane light white finish paint based on construction tolerance described in claim 1 and 2, it is characterized in that, the fineness≤20 μ m of described 60% titanium dioxide slurry, viscosity is 5000 ~ 8000mpa.s in the time of 25 ℃.
7. according to the urethane light white finish paint based on construction tolerance described in claim 1-3, it is characterized in that, described aldehyde ketone resin is particulate matter, and synthetic fat acid resin is admittedly containing being 80 ± 2%, and viscosity is 40000 ± 5000 mpa.s/25 ℃.
8. according to the urethane light white finish paint based on construction tolerance described in claim 1 and 2, it is characterized in that, the preparation method of described 60% titanium dioxide slurry is: select clean standard compliant dispersion cylinder, add successively by weight percentage 60% aldehyde ketone resin solution, wetting dispersing agent, dimethylbenzene, middling speed (600 ~ 800 r/min) dispersed with stirring is even, low speed (600 ~ 800 r/min) adds titanium dioxide 60% under stirring, (1200 ~ 1500 r/min) dispersed with stirring at a high speed, cross sand milling to fineness≤20 μ m, add 1-Methoxy-2-propyl acetate to adjust viscosity.
9. according to the urethane light white finish paint based on construction tolerance described in claim 1-8, it is characterized in that, the preparation method of A component is: select clean standard compliant dispersion cylinder, drop into successively by weight percentage 60% titanium dioxide slurry, synthetic fat acid resin, organosilicon dispersion agent, esters of acrylic acid flow agent, silicone based flow agent, defoamer, 1-Methoxy-2-propyl acetate, start dispersion machine, after low speed (600 ~ 800 r/min) is uniformly dispersed, (1200 ~ 1500 r/min) disperses 10 ~ 15min at a high speed, to fineness≤20 μ m, 1-Methoxy-2-propyl acetate 0.5% ~ 1% is adjusted viscosity,
B method for preparing ingredients thereof is: select clean standard compliant dispersion cylinder, add successively by weight percentage dimethylbenzene, n-butyl acetate, be warming up to after 90 ℃ of dehydrations, add TDI affixture solidifying agent, TDI trimer curing agent, HDI trimer curing agent, start and stir 30 min to being uniformly dispersed, cooling discharge sealing after 70 ℃ of insulations;
The preparation method of C component is: selects clean standard compliant dispersion cylinder, adds successively by weight percentage dimethylbenzene, and n-butyl acetate, 1-Methoxy-2-propyl acetate, vinyl acetic monomer, is stirred well to and mixes, stand-by.
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| CN105440917A (en) * | 2016-01-05 | 2016-03-30 | 安徽名士达涂料有限公司 | Easy-to-construct fritillaria paint and preparation method thereof |
| CN106752771A (en) * | 2016-12-26 | 2017-05-31 | 怀宁县三禾保洁服务有限公司 | A kind of lintel is turned over polyester fluorocarbon varnish and preparation method thereof |
| CN109627957A (en) * | 2018-10-31 | 2019-04-16 | 澳达树熊涂料(惠州)有限公司 | A kind of plentiful color inhibition showering glossy varnish coating of PU high and preparation method thereof |
| CN113897127A (en) * | 2021-11-11 | 2022-01-07 | 亚士创能科技(上海)股份有限公司 | Polyurethane bright white finish and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105440917A (en) * | 2016-01-05 | 2016-03-30 | 安徽名士达涂料有限公司 | Easy-to-construct fritillaria paint and preparation method thereof |
| CN106752771A (en) * | 2016-12-26 | 2017-05-31 | 怀宁县三禾保洁服务有限公司 | A kind of lintel is turned over polyester fluorocarbon varnish and preparation method thereof |
| CN109627957A (en) * | 2018-10-31 | 2019-04-16 | 澳达树熊涂料(惠州)有限公司 | A kind of plentiful color inhibition showering glossy varnish coating of PU high and preparation method thereof |
| CN113897127A (en) * | 2021-11-11 | 2022-01-07 | 亚士创能科技(上海)股份有限公司 | Polyurethane bright white finish and preparation method and application thereof |
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Application publication date: 20140305 |