CN103571319B - A kind of high plentiful anti impact polyurethane matte varnish - Google Patents
A kind of high plentiful anti impact polyurethane matte varnish Download PDFInfo
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- CN103571319B CN103571319B CN201310573956.6A CN201310573956A CN103571319B CN 103571319 B CN103571319 B CN 103571319B CN 201310573956 A CN201310573956 A CN 201310573956A CN 103571319 B CN103571319 B CN 103571319B
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Abstract
A kind of high plentiful anti impact polyurethane matte varnish of the present invention be add, with ricinoleyl alcohol acid resin, 20% vinyl chloride-vinyl acetate resin, powder of waxing, mute powder be prepared into component A, TDI affixture solidifying agent L-75, TDI trimer curing agent 1451, HDI trimer solidifying agent HX-90B and the positive fourth ester of dehydration acetate, dimethylbenzene are mixed with B component, thinner component C when being mixed with construction with n-butyl acetate, 1-Methoxy-2-propyl acetate, vinyl acetic monomer, glycol diacetate and dimethylbenzene, is prepared from A, B, component C by weight 1:0.5:0.5～0.8 mixing. The present invention utilizes the feature that raw material has large arch dam, snappiness is good such as ricinoleyl alcohol acid resin, HDI di-isocyanate to improve snappiness and the shock resistance of paint film, make that the coating transparency after application is good, fullness ratio height, snappiness and excellent shock resistance, be highly suitable for Wood craft and the application of rattan 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 rattan furniture needs polyurethanes (PU) matte varnish with high fullness ratio, excellent shock resistance.
Common PU matte varnish fillibility is poor, it is necessary to repeatedly application is to reach filling effect and the fullness ratio of demand, but be repeatedly heavily coated with easily cause paint film excessively thick, cause the transparency poor, shock resistance is poor, problems of crack.
At present, the fullness ratio of paint film is mainly subject to paint systems admittedly containing the impact with the transparency, and paint film shock resistance depends primarily on the paint film flexibility after the crosslinking reaction of hydroxyl and isocyanic ester. Admittedly the increase contained in system easily causes flexible reduction, it is thus desirable to put forward the crosslinking reaction of high solid in system, takes into account the snappiness of system simultaneously, to solve the problems such as paint film fullness ratio and shock resistance.
Summary of the invention
It is an object of the invention to: utilize the raw material such as ricinoleyl alcohol acid resin, HDI di-isocyanate to have the good feature of large arch dam, snappiness to improve snappiness and the shock resistance of paint film, there is provided 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 is mainly through realizing with under type:
The preparation of 20% vinyl chloride-vinyl acetate resin:
。
Described chlorine wax tree fat, it is preferable that, (waker) company limited of Germany watt gram becomes the model produced to be VINNOL22/48A, particulate state.
Described MIBK, i.e. methyl iso-butyl ketone (MIBK), it is preferable that content is >=98%.
The preparation process of 20% vinyl chloride-vinyl acetate resin is as follows: in the dispersion cup of clean conformance with standard, add chlorine wax tree fat 20% by weight percentage successively, MIBK35%, pimelinketone 10%, N-BUTYL ACETATE 35%, dissolves completely to vinyl chloride-vinyl acetate resin with 800 ~ 1200r/min dispersed with stirring, evenly disperses, stop stirring, stand-by.
The preparation of component A:
。
Described ricinoleyl alcohol acid resin, it is preferable that, Guangdong Hua Wang coating company limited is from producing resin, and it is solid containing being 80%, and viscosity is 75000 ~ 95000mpa.s/25 DEG C, and acid number is that < 10mgKOH/g, hydroxyl value is 120 ± 10mgKOH/g.
Described high molecular weight dispersant, it is preferable that, the model that Ai Fuka company of Holland produces is EFKA-4010.
Described esters of acrylic acid flow agent, it is preferable that, the model that the chemical company of Bi Ke produces is BYK-358N.
Described silicone based flow agent, it is preferable that, the model that the chemical company of Bi Ke produces is BYK-333.
Described silicone based defoamer, it is preferable that, the model that the chemical company of Bi Ke produces is BYK-333.
Described 15% polyamide wax, it is preferable that, this chemical industry of nanmu (Kunshan) company limited produces.
Described wax powder, it is preferable that, the 1778 wax powder that Lu Borun company limited of the U.S. produces.
Described mute powder, it is preferable that, the model that Grace company limited of the U.S. produces is ED-2.
The preparation process of described component A is as follows: in the dispersion cup of clean conformance with standard, add ricinoleyl alcohol acid resin 69% ~ 80% by weight percentage successively, 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%, MIBK2%, 15% polyamine wax 5%, 1-Methoxy-2-propyl acetate 2% ~ 4%, with rotating speed 600 ~ 800r/min stirring at low speed 10min to being fully uniformly dispersed, add wax powder 0.5% ~ 1% successively, mute powder 4% ~ 7%, with a small amount of 1-Methoxy-2-propyl acetate cleaning cylinder limit, with rotating speed 1200 ~ 1500r/min high-speed stirring 10 ~ 15min, to fineness≤25 μm, by 0.5% ~ 1% 1-Methoxy-2-propyl acetate adjustment viscosity to 2000 ~ 3500mpa.s/25 DEG C, i.e. obtained component A.
The preparation of B component:
。
Described TDI affixture solidifying agent, it is preferable that, the model that the chemical company of Bayer produces is DesmodurL-75.
Described TDI trimer curing agent, it is preferable that, the DesmodurIL1451 that the chemical company of Bayer produces.
Described HDI trimer solidifying agent, it is preferable that, the CORONATEHX-90B that Japanese polyurethane company limited produces.
The preparation process of described B component is as follows: in the reaction vessel of clean conformance with standard, add dimethylbenzene 10% by weight percentage successively, the positive fourth ester 17% ~ 22% of dehydration acetate, after dehydration, add TDI affixture solidifying agent 26% ~ 40%, TDI trimer curing agent 25% ~ 30%, HDI trimer solidifying agent 8% ~ 12%, start and stir 30min to being uniformly dispersed, cooling discharge sealing after 70 DEG C of insulations.
The preparation of component C:
。
The preparation process of described component C is as follows: in the reaction vessel of clean conformance with standard, add dimethylbenzene 43% ~ 50% by weight percentage successively, 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, C tri-compositions in weight percentage proportioning 1:0.5:(0.5 ~ 0.8) fully it is uniformly mixed, spraying, brushing, showering, roll coating model can be adopted 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, with the use of the ricinoleyl alcohol acid resin with large arch dam, flexility excellence, it is to increase the entirety of system contains admittedly.Due to the large arch dam feature of resin itself, reduce the content of powder in system, make the melt and dissolved dispersion of system entirety better, decrease large arch dam to the impact of system transparency. Meanwhile, HDI trimer solidifying agent and TDI solidifying agent used in combination, has been in harmonious proportion the snappiness of system, and has very fast drying rate. After testing and probationary certificate, its coating has that good transparency and fullness ratio height, snappiness are good, excellent shock resistance, is highly suitable for Wood craft and the application of rattan furniture in the present invention.
Embodiment
Below in conjunction with specific embodiment, the present invention done clear, complete explanation. Needing clear and definite, following examples are concrete elaborations the present invention carried out, and the embodiment of not all, 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 within protection scope of the present invention.
In following examples, chlorine wax tree fat is (waker) company limited of Germany watt gram and becomes the model produced to be VINNOL22/48A chlorine wax tree fat; Ricinoleyl alcohol acid resin is Guangdong Hua Wang coating company limited from producing resin; It is EFKA-4010 that high molecular weight dispersant is the model of Ai Fuka company of Holland production; It is BYK-358N that esters of acrylic acid flow agent is the model of Bi Ke Chemical Co., Ltd. production; It is BYK-333 that silicone based flow agent is the model of Bi Ke Chemical Co., Ltd. production; It is BYK-141 that silicone based defoamer is the model of Bi Ke Chemical Co., Ltd. production; Polyamide wax is this chemical industry of nanmu (Kunshan) company limited and produces; Wax powder is the 1778 wax powder that Lu Borun company limited of the U.S. produces; It is the mute powder of ED-2 that mute powder is the model of Grace company limited of U.S. production; It is DesmodurL-75 that TDI affixture solidifying agent is the model of Bayer chemical company production; TDI trimer curing agent is the DesmodurIL1451 that the chemical company of Bayer produces; HDI trimer solidifying agent is the CORONATEHX-90B that Japanese polyurethane company limited produces. MIBK and methyl iso-butyl ketone (MIBK).
The preparation (general) of 20% vinyl chloride-vinyl acetate resin: in the dispersion cup of clean conformance with standard, adds chlorine wax tree fat 20kg, MIBK35kg successively, pimelinketone 10kg, N-BUTYL ACETATE 35kg, dissolve to vinyl chloride-vinyl acetate resin completely with 800 ~ 1200r/min dispersed with stirring, evenly dispersion, stops stirring, stand-by.
Embodiment 1
The preparation of component A:
In the reaction vessel of clean conformance with standard, add ricinoleyl alcohol acid resin 69kg successively, 20% vinyl chloride-vinyl acetate resin 8kg, dispersion agent EFKA-40101.2kg, flow agent BYK-358N1kg, flow agent BYK-3330.3kg, defoamer BYK-1410.5kg, MIBK2kg, 15% polyamine wax 5kg, 1-Methoxy-2-propyl acetate 4kg, with rotating speed 600 ~ 800r/min stirring at low speed 10min to being fully uniformly dispersed, add wax powder 1kg successively, mute powder 7kg, with a small amount of 1-Methoxy-2-propyl acetate cleaning cylinder limit, with rotating speed 1200 ~ 1500r/min high-speed stirring 10 ~ 15min, to fineness≤25 μm, viscosity to 2000 ~ 3500mpa.s/25 DEG C is adjusted with 1kg 1-Methoxy-2-propyl acetate, i.e. obtained component A.
The preparation of B component:
In the dispersion cup of clean conformance with standard, add dimethylbenzene 5kg successively, the positive fourth ester 11kg of dehydration acetate, after dehydration, add solidifying agent L-7513kg, solidifying agent IL145115kg, solidifying agent HX-90B6kg, starts and stirs 30min to being uniformly dispersed, cooling discharge sealing after 70 DEG C of insulations.
The preparation of component C:
In the reaction vessel of clean conformance with standard, adding dimethylbenzene 23kg successively, n-butyl acetate 13kg, 1-Methoxy-2-propyl acetate 7.8kg, vinyl acetic monomer 6.7kg, glycol diacetate 2kg, is stirred well to and is uniformly dispersed, stand-by.
Using method: A, B, C tri-components are fully uniformly mixed, and spraying, brushing, showering, roll coating model can be adopted to construct. Wherein the third component does not participate in chemical reaction, only rises and adjusts rare construction action.
Embodiment 2
According to getting out raw material shown in table 1, the method identical with embodiment 1 is adopted to prepare component A, B component and component C successively.
Table 1:
。
Using method: adopt the using method identical with embodiment 1.
Comparative example 1-4
According to getting out raw material shown in table 2, the method identical with embodiment 1 is adopted to prepare comparative example 1, comparative example 2, comparative example 3, the A of comparative example 4, B, component C successively.
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 refer to GB/T23997-2009, and hazardous and noxious substances limit detection method is with reference to GB18581-2009.
Table 3:
。
By above data it will be seen that a kind of high plentiful anti impact polyurethane matte varnish of the present invention has the shock resistance of high fullness ratio, good snappiness and excellence. After testing and probationary certificate, strong adhesion, hardness height, the shock-resistance of its coating, water-fast, chemical resistant properties good, snappiness is good, during construction: stream put down, is easily sprayed, woodenware artwork and rattan article can be met to the requirement of product, be the first-selection of top grade woodenware artwork and rattan furniture application.
Claims (6)
1. one kind high plentiful anti impact polyurethane matte varnish, it is characterized in that, by A, B, C tri-kinds of moiety 1:0.5:(0.5～0.8 by weight percentage) it is mixed, wherein, component A is made primarily of 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%, MIBK2%, 15% polyamide wax 5%, 1-Methoxy-2-propyl acetate 2%～4%, polyethylene wax powder 0.5%～1%, mute powder 4%～7%, 1-Methoxy-2-propyl acetate 0.5%～1%, B component is made primarily of following raw materials by weight: TDI affixture solidifying agent 26%～40%, TDI trimer curing agent 25%～30%, HDI trimer solidifying agent 8%～12%, dimethylbenzene 10%, the positive fourth ester 17%～22% of dehydration acetate, component C forms primarily 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%,
Described 20% vinyl chloride-vinyl acetate resin is made up by weight percentage of following composition: vinyl chloride-vinyl acetate resin 20%, MIBK35%, cyclohexanone 10%, N-BUTYL ACETATE 35%;
Described 1-Methoxy-2-propyl acetate 2%～4% and 1-Methoxy-2-propyl acetate 0.5%～1% add for same substance divides twice, and first time adds 2%～4%, and second time adds 0.5%～1%.
2. the high plentiful anti impact polyurethane matte varnish of one according to claim 1, it is characterized in that, described ricinoleyl alcohol acid resin is admittedly containing being 80%, and viscosity is 75000～95000mPa s/25 DEG C, acid number is that < 10mgKOH/g, hydroxyl value is 120 ± 10mgKOH/g.
3. the high plentiful anti impact polyurethane matte varnish of one according to claim 1 and 2, it is characterised in that, vinyl chloride-vinyl acetate resin is particulate state.
4. the high plentiful anti impact polyurethane matte varnish of one according to claim 1, it is characterised in that, component A is uniformly dispersed, fineness≤25 μm, viscosity: 2000～3500mPa s/25 DEG C.
5. the high plentiful anti impact polyurethane matte varnish of one according to claim 1, it is characterised in that, free TDI, HDI content≤0.5% in TDI affixture solidifying agent, TDI trimer curing agent, HDI trimer solidifying agent.
6. a kind of high plentiful anti impact polyurethane matte varnish according to Claims 1 to 5 any one, it is characterized in that, the preparation process of component A is as follows: in the dispersion cup of clean conformance with standard, add ricinoleyl alcohol acid resin 69%～80% by weight percentage successively, 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%, MIBK2%, 15% polyamide wax 5%, 1-Methoxy-2-propyl acetate 2%～4%, with rotating speed 600～800r/min stirring at low speed 10min to being fully uniformly dispersed, add polyethylene wax powder 0.5%～1% successively, mute powder 4%～7%, with a small amount of 1-Methoxy-2-propyl acetate cleaning cylinder limit, with rotating speed 1200～1500r/min high-speed stirring 10～15min, to fineness≤25 μm, viscosity to 2000～3500mPa s/25 DEG C is adjusted with 1-Methoxy-2-propyl acetate 0.5%～1%, i.e. obtained component A,
The preparation process of B component is as follows: in the reaction vessel of clean conformance with standard, add dimethylbenzene by weight percentage successively, the positive fourth ester of dehydration acetate, after dehydration, add TDI affixture solidifying agent, TDI trimer curing agent, HDI trimer solidifying agent, start and stir 30min to being uniformly dispersed, cooling discharge sealing after 70 DEG C of insulations;
The preparation process of component C is as follows: in the reaction vessel of clean conformance with standard, adds dimethylbenzene, n-butyl acetate by weight percentage successively, 1-Methoxy-2-propyl acetate, vinyl acetic monomer, and glycol diacetate, is stirred well to and is uniformly dispersed, stand-by.
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Address after: 528427 No. 108, Zhengxing Road, Nantou Town, Zhongshan City, Guangdong Province Patentee after: Guangdong bards new materials Co.,Ltd. Address before: 528427 No. 108, Zhengxing Road, Nantou Town, Zhongshan City, Guangdong Province Patentee before: GUANGDONG BADESE CHEMICAL Co.,Ltd. |