CN103571319A - High-fullness and shock-resistance polyurethane matte top-coat paint - Google Patents
High-fullness and shock-resistance polyurethane matte top-coat paint Download PDFInfo
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Abstract
The invention discloses high-fullness and shock-resistance polyurethane matte top-coat paint. Castor oil alkyd resin, 20% of chlorine vinegar resin, wax powder and matte powder are prepared to a component A; TDI addition curing agent L-75, TDI tripolymer curing agent 1451, HDI tripolymer curing agent HX-90B, dehydrated n-butyl acetate and xylene are prepared to a component B; n-butyl acetate, propylene glycol methyl ether acetate, acetic ether, ethylene glycol diacetate and xylene are prepared to a thinner component C during constructing; the paint is prepared by mixing the components A, B and C according to the weight ratio of 1: 0.5: (0.5-0.8). By using the characteristics of high solid content and good flexibility of the raw materials such as the castor oil alkyd resin and HDI diisocyanate, the paint of the invention improves the flexibility and the shock resistance of painted films, enables coated layers to have good transparency, high fullness and excellent flexibility and shock resistance, and is specifically suitable for coating wood artware and cane furniture.
Description
Technical field
The present invention relates to a kind of high plentiful anti impact polyurethane matte varnish, belong to woodwork coating production.
Background technology
The application of Wood craft and cane furniture need to have polyurethanes (PU) matte varnish of high fullness ratio, excellent shock resistance.
Common PU matte varnish fillibility is poor, needs repeatedly application to reach filling effect and the fullness ratio of demand, but repeatedly recoat easily cause paint film blocked up, cause that the transparency is poor, shock resistance is poor, problems of crack.
At present, the fullness ratio of paint film be mainly subject to paint systems admittedly containing and transparent impact, paint film shock resistance depends primarily on the paint film flexibility after the crosslinking reaction of hydroxyl and isocyanic ester.Admittedly the increase containing in system easily causes flexible reduction, therefore need to put forward the crosslinking reaction of high solid in system, takes into account the snappiness of system, to solve the problems such as paint film fullness ratio and shock resistance simultaneously.
Summary of the invention
The object of the invention is: utilize the raw materials such as ricinoleyl alcohol acid resin, HDI di-isocyanate have high solid containing the good feature of, snappiness to improve snappiness and the shock resistance of paint film, provide a kind of PU matte varnish with high fullness ratio, excellent shock resistance, to adapt to the application demand of different sorts goods.
The present invention mainly realizes in the following manner:
The preparation of 20% vinyl chloride-vinyl acetate resin:
。
Described chlorine wax tree fat, preferred, the model that Germany watt gram (waker) company limited becomes to produce is VINNOL22/48A, particulate state.
Described MIBK, i.e. methyl iso-butyl ketone (MIBK), preferred content is >=98%.
The preparation process of 20% vinyl chloride-vinyl acetate resin is as follows: in clean standard compliant dispersion cup, add successively by weight percentage chlorine wax tree fat 20%, MIBK35%, pimelinketone 10%, N-BUTYL ACETATE 35%, dissolves completely with 800 ~ 1200 r/min dispersed with stirring to vinyl chloride-vinyl acetate resins, dispersed, stop stirring, stand-by.
The preparation of A component:
Described ricinoleyl alcohol acid resin, preferred, the self-produced resin of Guangdong Flower King Coating Co., Ltd., it is solid, and containing being 80%, viscosity is 75000 ~ 95000 mpa.s/25 ℃, and acid number is <10 mgKOH/g, and hydroxyl value is 120 ± 10 mgKOH/g.
Described high molecular weight dispersant, preferred, the model that Dutch EFKA company produces is EFKA-4010.
Described esters of acrylic acid flow agent, the model that preferably ，Bi Ke chemical company produces is BYK-358N.
Described silicone based flow agent, the model that preferably ，Bi Ke chemical company produces is BYK-333.
Described silicone based defoamer, the model that preferably ，Bi Ke chemical company produces is BYK-333.
Described 15% polyamide wax, preferred, this chemical industry of nanmu (Kunshan) company limited produces.
Described wax powder, preferred, the 1778 wax powder that U.S. Noveon Inc. produces.
Described mute powder, preferred, the model that U.S. Grace Gmbh. produces is ED-2.
The preparation process of described A component is as follows: in clean standard compliant dispersion cup, add successively by weight percentage ricinoleyl alcohol acid resin 69% ~ 80%, 20% vinyl chloride-vinyl acetate resin 5% ~ 8%, dispersion agent 1% ~ 1.2%, flow agent 0.5% ~ 1%, flow agent 0.2% ~ 0.3%, defoamer 0.3% ~ 0.5%, MIBK 2%, 15% polyamine wax 5%, 1-Methoxy-2-propyl acetate 2% ~ 4%, with rotating speed 600 ~ 800 r/min stirring at low speed 10 min, be extremely fully uniformly dispersed, add successively wax powder 0.5% ~ 1%, mute powder 4% ~ 7%, with a small amount of 1-Methoxy-2-propyl acetate cleaning cylinder limit, with rotating speed 1200 ~ 1500 r/min high-speed stirring 10 ~ 15 min, to fineness≤25 μ m, with 0.5% ~ 1% 1-Methoxy-2-propyl acetate, adjust viscosity to 2000 ~ 3500 mpa.s/25 ℃, make A component.
The preparation of B component:
Described TDI affixture solidifying agent, preferred, the model that Chemical Bayer Ltd. produces is Desmodur L-75.
Described TDI trimer curing agent, preferred, the Desmodur IL 1451 that Chemical Bayer Ltd. produces.
Described HDI trimer curing agent, preferred, the CORONATE HX-90B that Japanese polyurethane company limited produces.
The preparation process of described B component is as follows: in clean standard compliant reaction vessel, add successively by weight percentage dimethylbenzene 10%, the positive butyl ester 17% ~ 22% of dehydration acetate, after dehydration, add TDI affixture solidifying agent 26% ~ 40%, TDI trimer curing agent 25% ~ 30%, HDI trimer curing agent 8% ~ 12%, start and stir 30 min to being uniformly dispersed, cooling discharge sealing after 70 ℃ of insulations.
The preparation of C component:
The preparation process of described C component is as follows: in clean standard compliant reaction vessel, add successively by weight percentage dimethylbenzene 43% ~ 50%, n-butyl acetate 20% ~ 25%, 1-Methoxy-2-propyl acetate 10% ~ 15%, vinyl acetic monomer 8% ~ 13%, glycol diacetate 2% ~ 4%, is stirred well to and is uniformly dispersed, stand-by.
Using method: A, B, tri-compositions in weight percentage proportioning 1:0.5:(0.5 ~ 0.8 of C) be fully uniformly mixed, can adopt spraying, brushing, showering, roll coating model to construct.Wherein the third component does not participate in chemical reaction, only rises and adjusts rare construction action.
The invention has the beneficial effects as follows: a kind of high plentiful shock resistance matte varnish, by use, there is the high solid ricinoleyl alcohol acid resin containing, flexility excellence, the integral body that improves system contains admittedly.Because the height of resin itself is admittedly containing feature, reduced the content of powder in system, make the melt and dissolved dispersion of system integral body better, reduced high solid containing the impact on system transparency.Meanwhile, the use that mixes of HDI trimer curing agent and TDI solidifying agent, has been in harmonious proportion the snappiness of system, and has very fast drying rate.After testing and probationary certificate, its coating has good transparency and fullness ratio is high, snappiness is good, excellent shock resistance, is highly suitable for the application of Wood craft and cane furniture in the present invention.
Embodiment
Below in conjunction with specific embodiment, the present invention is done to clear, complete explanation.Need clearly, following examples are concrete elaborations that the present invention is carried out, but not whole embodiment, within any creative changes and improvements that those skilled in the art do not make based on the embodiment of the present invention all should fall into protection scope of the present invention.
In following examples, it is VINNOL22/48A chlorine wax tree fat that chlorine wax tree fat is Germany's watt gram model that (waker) company limited one-tenth produces; Ricinoleyl alcohol acid resin is the self-produced resin of Guangdong Flower King Coating Co., Ltd.; It is EFKA-4010 that high molecular weight dispersant is the model that Dutch EFKA company produces; The model that esters of acrylic acid flow agent is the production of Bi Ke Chemical Co., Ltd. is BYK-358N; The model that silicone based flow agent is the production of Bi Ke Chemical Co., Ltd. is BYK-333; The model that silicone based defoamer is the production of Bi Ke Chemical Co., Ltd. is BYK-141; Polyamide wax is this chemical industry of nanmu (Kunshan) company limited and produces; Wax powder is the 1778 wax powder that U.S. Noveon Inc. produces; The model that mute powder is the production of U.S. Grace Gmbh. is the mute powder of ED-2; The model that TDI affixture solidifying agent is Chemical Bayer Ltd.'s production is Desmodur L-75; TDI trimer curing agent is the Desmodur IL 1451 that Chemical Bayer Ltd. produces; HDI trimer curing agent is the CORONATE HX-90B that Japanese polyurethane company limited produces.MIBK is methyl iso-butyl ketone (MIBK).
The preparation of 20% vinyl chloride-vinyl acetate resin (general): in clean standard compliant dispersion cup, add successively chlorine wax tree fat 20 kg, MIBK 35 kg, pimelinketone 10 kg, N-BUTYL ACETATE 35 kg, dissolve completely with 800 ~ 1200 r/min dispersed with stirring to vinyl chloride-vinyl acetate resins, dispersed, stop stirring, stand-by.
Embodiment 1
The preparation of A component:
In clean standard compliant reaction vessel, add successively ricinoleyl alcohol acid resin 69 kg, 20% vinyl chloride-vinyl acetate resin 8 kg, dispersion agent EFKA-4010 1.2 kg, flow agent BYK-358N 1 kg, flow agent BYK-333 0.3 kg, defoamer BYK-141 0.5 kg, MIBK 2 kg, 15% polyamine wax 5 kg, 1-Methoxy-2-propyl acetate 4 kg, with rotating speed 600 ~ 800 r/min stirring at low speed 10 min, be extremely fully uniformly dispersed, add successively wax powder 1 kg, mute powder 7 kg, with a small amount of 1-Methoxy-2-propyl acetate cleaning cylinder limit, with rotating speed 1200 ~ 1500 r/min high-speed stirring 10 ~ 15 min, to fineness≤25 μ m, with 1 kg 1-Methoxy-2-propyl acetate, adjust viscosity to 2000 ~ 3500 mpa.s/25 ℃, make A component.
The preparation of B component:
In clean standard compliant dispersion cup, add successively dimethylbenzene 5 kg, positive butyl ester 11 kg of dehydration acetate, after dehydration, add solidifying agent L-75 13 kg, solidifying agent IL 1,451 15 kg, solidifying agent HX-90B 6 kg, start and stir 30 min to being uniformly dispersed, cooling discharge sealing after 70 ℃ of insulations.
The preparation of C component:
In clean standard compliant reaction vessel, add successively dimethylbenzene 23 kg, n-butyl acetate 13 kg, 1-Methoxy-2-propyl acetate 7.8 kg, vinyl acetic monomer 6.7 kg, glycol diacetate 2 kg, are stirred well to and are uniformly dispersed, stand-by.
Using method: A, B, tri-components of C are fully uniformly mixed, and can adopt spraying, brushing, showering, roll coating model to construct.Wherein the third component does not participate in chemical reaction, only rises and adjusts rare construction action.
Embodiment 2
According to being ready to raw material shown in table 1, adopt the method identical with embodiment 1 to prepare successively A component, B component and C component.
Table 1:
Using method: adopt the using method identical with embodiment 1.
Comparative example 1-4
According to being ready to raw material shown in table 2, adopt the method identical with embodiment 1 to prepare successively A, B, the C component of comparative example 1, comparative example 2, comparative example 3, comparative example 4.
Table 2:
According to performance index detection method, embodiment 1 is as follows with the performance index of comparative example 1-4:
Each performance index of a kind of high plentiful shock resistance matte varnish of the present invention are as shown in table 3.Performance index detection method can be with reference to GB/T23997-2009, and hazardous and noxious substances limit detection method is with reference to GB18581-2009.
Table 3:
From above data, a kind of high plentiful anti impact polyurethane matte varnish of the present invention has high fullness ratio, good snappiness and excellent shock resistance.After testing and probationary certificate, strong adhesion, the hardness of its coating are high, shock-resistance, water-fast, chemical resistant properties good, snappiness is good, during construction: levelling is good, easily spraying, can meet the requirement to product of woodenware artwork and rattan article, is the first-selection of high-grade woodenware artwork and cane furniture application.
Claims (7)
1. a kind of high plentiful anti impact polyurethane matte varnish of the present invention, it is characterized in that, by A, B, tri-kinds of moietys of C are 1:0.5:(0.5 ~ 0.8 by weight percentage) be mixed, wherein, A component is mainly made by following raw materials by weight: ricinoleyl alcohol acid resin 69% ~ 80%, 20% vinyl chloride-vinyl acetate resin 5% ~ 8%, high molecular weight dispersant 1% ~ 1.2%, esters of acrylic acid flow agent 0.5% ~ 1%, silicone based flow agent 0.2% ~ 0.3%, silicone based defoamer 0.3% ~ 0.5%, MIBK 2%, 15% polyamine wax 5%, 1-Methoxy-2-propyl acetate 2% ~ 4%, wax powder 0.5% ~ 1%, mute powder 4% ~ 7%, 1-Methoxy-2-propyl acetate 0.5% ~ 1%, B component is mainly made by following raw materials by weight: TDI affixture solidifying agent 26% ~ 40%, TDI trimer curing agent 25% ~ 30%, HDI trimer curing agent 8% ~ 12%, dimethylbenzene 10%, the positive butyl ester 17% ~ 22% of dehydration acetate, C component is mainly comprised of following raw material: dimethylbenzene 43% ~ 50%, n-butyl acetate 20% ~ 25%, 1-Methoxy-2-propyl acetate 10% ~ 15%, vinyl acetic monomer 8% ~ 13%, glycol diacetate 2% ~ 4%.
2. a kind of high plentiful anti impact polyurethane matte varnish according to claim 1, is characterized in that, 20% vinyl chloride-vinyl acetate resin is made by weight percentage by following composition: vinyl chloride-vinyl acetate resin 20%, MIBK 35%, cyclohexanone 10%, N-BUTYL ACETATE 35%.
3. a kind of high plentiful anti impact polyurethane matte varnish according to claim 1, it is characterized in that, described ricinoleyl alcohol acid resin is admittedly containing being 80%, and viscosity is 75000 ~ 95000 mpa.s/25 ℃, acid number is <10 mgKOH/g, and hydroxyl value is 120 ± 10 mgKOH/g.
4. according to a kind of high plentiful anti impact polyurethane matte varnish described in claim 1,2, it is characterized in that, chlorine wax tree fat is particulate state.
5. a kind of high plentiful anti impact polyurethane matte varnish according to claim 1, is characterized in that, A component is uniformly dispersed, fineness≤25 μ m, viscosity: 2000 ~ 3500 mpa.s/25 ℃.
6. a kind of high plentiful anti impact polyurethane matte varnish according to claim 1, is characterized in that free TDI, HDI content≤0.5% in TDI affixture solidifying agent, TDI trimer curing agent, HDI trimer curing agent.
7. according to a kind of high plentiful anti impact polyurethane matte varnish described in claim 1 ~ 6, it is characterized in that, the preparation process of A component is as follows: in clean standard compliant dispersion cup, add successively by weight percentage ricinoleyl alcohol acid resin, 20% vinyl chloride-vinyl acetate resin, dispersion agent, flow agent, flow agent, defoamer, MIBK, 15% polyamine wax, 1-Methoxy-2-propyl acetate, with rotating speed 600 ~ 800 r/min stirring at low speed 10 min, be extremely fully uniformly dispersed, add successively wax powder, mute powder, with a small amount of 1-Methoxy-2-propyl acetate cleaning cylinder limit, with rotating speed 1200 ~ 1500 r/min high-speed stirring 10 ~ 15 min, to fineness≤25 μ m, with 1-Methoxy-2-propyl acetate, adjust viscosity to 2000 ~ 3500 mpa.s/25 ℃, make A component,
The preparation process of B component is as follows: in clean standard compliant reaction vessel, add successively by weight percentage dimethylbenzene, the positive butyl ester of dehydration acetate, after dehydration, 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 process of C component is as follows: in clean standard compliant reaction vessel, add successively by weight percentage dimethylbenzene, and n-butyl acetate, 1-Methoxy-2-propyl acetate, vinyl acetic monomer, glycol diacetate, is stirred well to and is uniformly dispersed, stand-by.
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Cited By (11)
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| CN105462480A (en) * | 2015-12-18 | 2016-04-06 | 广东巴德士化工有限公司 | PU matte finishing varnish and preparation method thereof |
| CN106221528A (en) * | 2016-08-26 | 2016-12-14 | 广东巴德士化工有限公司 | A kind of have the most smooth PU matte white finish of gloss and preparation method thereof |
| CN106833363A (en) * | 2017-02-28 | 2017-06-13 | 展辰新材料集团股份有限公司 | A kind of coatings for furniture |
| CN107216798A (en) * | 2017-05-31 | 2017-09-29 | 佛山市高明区首邦化工有限公司 | A kind of net taste anti scuffing clear finish of dumb light |
| CN107903778A (en) * | 2017-11-24 | 2018-04-13 | 上海巴德士化工新材料有限公司 | A kind of PU showerings matte varnish and preparation method thereof |
| CN108912982A (en) * | 2018-08-09 | 2018-11-30 | 中山市大涂料有限公司 | A kind of anti-sag PU transparent priming and preparation method thereof |
| CN109593459A (en) * | 2018-10-31 | 2019-04-09 | 澳达树熊涂料(惠州)有限公司 | A kind of white dumb light rattan articles polyurethane coating of bi-component and preparation method thereof |
| CN112646459A (en) * | 2020-12-17 | 2021-04-13 | 广东花王涂料有限公司 | Woodware colored paint composition and woodware colored paint coating |
| CN112724811A (en) * | 2020-12-28 | 2021-04-30 | 东莞大宝化工制品有限公司 | Solvent type polyurethane finish paint with skin touch feeling and preparation method thereof |
| CN114456697A (en) * | 2022-01-26 | 2022-05-10 | 中山市大一涂料有限公司 | Polyurethane coating and preparation method and application thereof |
| CN114921171A (en) * | 2022-06-10 | 2022-08-19 | 上海立邦长润发涂料有限公司 | Oily primer for matching with water-based finish paint and preparation method thereof |
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| CN105462480A (en) * | 2015-12-18 | 2016-04-06 | 广东巴德士化工有限公司 | PU matte finishing varnish and preparation method thereof |
| CN106221528A (en) * | 2016-08-26 | 2016-12-14 | 广东巴德士化工有限公司 | A kind of have the most smooth PU matte white finish of gloss and preparation method thereof |
| CN106833363A (en) * | 2017-02-28 | 2017-06-13 | 展辰新材料集团股份有限公司 | A kind of coatings for furniture |
| CN107216798A (en) * | 2017-05-31 | 2017-09-29 | 佛山市高明区首邦化工有限公司 | A kind of net taste anti scuffing clear finish of dumb light |
| CN107903778A (en) * | 2017-11-24 | 2018-04-13 | 上海巴德士化工新材料有限公司 | A kind of PU showerings matte varnish and preparation method thereof |
| CN108912982A (en) * | 2018-08-09 | 2018-11-30 | 中山市大涂料有限公司 | A kind of anti-sag PU transparent priming and preparation method thereof |
| CN109593459A (en) * | 2018-10-31 | 2019-04-09 | 澳达树熊涂料(惠州)有限公司 | A kind of white dumb light rattan articles polyurethane coating of bi-component and preparation method thereof |
| CN112646459A (en) * | 2020-12-17 | 2021-04-13 | 广东花王涂料有限公司 | Woodware colored paint composition and woodware colored paint coating |
| CN112724811A (en) * | 2020-12-28 | 2021-04-30 | 东莞大宝化工制品有限公司 | Solvent type polyurethane finish paint with skin touch feeling and preparation method thereof |
| CN114456697A (en) * | 2022-01-26 | 2022-05-10 | 中山市大一涂料有限公司 | Polyurethane coating and preparation method and application thereof |
| CN114456697B (en) * | 2022-01-26 | 2023-06-02 | 中山市大一涂料有限公司 | Polyurethane coating and preparation method and application thereof |
| CN114921171A (en) * | 2022-06-10 | 2022-08-19 | 上海立邦长润发涂料有限公司 | Oily primer for matching with water-based finish paint and preparation method thereof |
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