CN104231901B - A kind of aqueous elastic handfeel paint and preparation method thereof - Google Patents
A kind of aqueous elastic handfeel paint and preparation method thereof Download PDFInfo
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Abstract
The present invention relates to a kind of aqueous elastic handfeel paint and preparation method thereof, belong to technical field of coatings.Include following component by weight: component A: aqueous polyurethane emulsion 30～40 parts, aqueous dispersion 0.3～0.6 part, mill base 3～6 parts, flatting silica 3～5 parts, elastic 5～10 parts of powder, feel auxiliary agent 2～5 parts, 0.2～0.5 part of wax powder, levelling agent 0.2～0.4 part, defoamer 0.1～0.3 part, hydrated magnesium silicate 1～2 part, nertralizer 0.5～1 part, cosolvent 1～2 part, deionized water 5～10 parts；Component B:HDI hydrophilic isocyanates；The weight ratio of component A and component B is 8～12:1.Present invention employs water-based system raw material and made aqueous elastic handfeel paint, it is elastic that this product has very excellent feel, the scrubbing character of resistance to ethanol, the paper tape of resistance to RCA frictional property, and the paper tape of resistance to RCA friction can reach 200 times.
Description
Technical field
The present invention relates to a kind of aqueous elastic handfeel paint and preparation method thereof, belong to technical field of coatings.
Background technology
Under the pressure of haze; the revision first over 25 years that environmental law is done by the National People's Congress; the revision of " Law on Environmental Protection " is passed through, and increases the dynamics of punishing to heavy polluter, and contaminating enterprises can be penalized number per diem to punish continuously according to original place by amendment clear stipulaties.Especially tightened up in the product surface coating environmental requirement of electron trade.
Nowadays the appearance of article of everyday use is required more and more higher, such as aluminium powder effect, crack effect, elastic handfeel effect etc., particularly some positions touched through conventional hands, require spraying elastic handfeel coating, such as Blowing drum handle, MP3 shell, mouse, phone housing, telescope, umbrella handle etc., make people feel a kind of soft smooth sensation, arise at the historic moment for this elastic handfeel coating.Elastic handfeel coating is also known as rubber coating.It is primarily now two part solvent type product: a component is hydroxyl linear polyester resins or the hydroxyl modified polyester resin having a little side chain；Another component is isocyanates firming agent, is usually with HDI trimer type or biuret form.
But, common elastic handfeel coating is oil paint, has a certain impact for environment tool, and current hand-feeling coating also exists the problem that weatherability is bad.
Summary of the invention
It is an object of the invention to: a kind of feel elastomeric paint with good weatherability properties energy is provided.
Technical scheme:
A kind of aqueous elastic handfeel paint, includes following component by weight:
Component A: aqueous polyurethane emulsion 30～40 parts, aqueous dispersion 0.3～0.6 part, mill base 3～6 parts, flatting silica 3～5 parts, elastic 5～10 parts of powder, feel auxiliary agent 2～5 parts, 0.2～0.5 part of wax powder, levelling agent 0.2～0.4 part, defoamer 0.1～0.3 part, hydrated magnesium silicate 1～2 part, nertralizer 0.5～1 part, cosolvent 1～2 part, deionized water 5～10 parts；Component B:HDI hydrophilic isocyanates；The weight ratio of component A and component B is 8～12:1.
Described component A also includes ethylene-vinyl acetate 5～10 parts.
Described component A also includes polymethyl methacrylate (PMMA) 3～5 parts.
Described polymethyl methacrylate refers to by the SiO that solution blended process prepares2Modified polymethyl methacrylate.
The preparation method of above-mentioned aqueous elastic handfeel paint, comprises the steps:
1st step, aqueous polyurethane emulsion, cosolvent are stirred；
2nd step, produce adding after aqueous dispersion, defoamer, levelling agent dilution in cylinder with a part of deionized water, stir；
3rd step, add mill base, elastic powder, flatting silica, feel auxiliary agent, hydrated magnesium silicate while stirring, be uniformly dispersed；
4th step, add remaining deionized water and nertralizer, stir, obtain component A.
Preferably, in the 1st step, speed of agitator 400～600 revs/min, mixing time 5～10 minutes.
Preferably, in the 2nd step, speed of agitator 400～600 revs/min, mixing time 5～10 minutes.
Preferably, in the 3rd step, speed of agitator 400～600 revs/min, the rotating speed in dispersion steps 1000～1200 revs/min, jitter time 30～40 minutes.
Preferably, the 1st step is additionally added polymethyl methacrylate 3～5 parts and/or ethylene-vinyl acetate 5～10 parts.
Beneficial effect
Present invention employs water-based system raw material and made aqueous elastic handfeel paint, it is elastic that this product has very excellent feel, the scrubbing character of resistance to ethanol, the paper tape of resistance to RCA frictional property, and the paper tape of resistance to RCA friction can reach 200 times；Complete Water-borne modification, greatly reduces the discharge capacity of VOC, complies fully with environmental requirement simultaneously.This product can be widely applied to the fields such as each electronic product, sports equipment, small household appliances, glass product, automobile.
Detailed description of the invention
The raw material that following example adopt is as follows:
Aqueous elastic polyaminoester emulsion (PU-303 Jiangmen new liter chemical industry)
Ethylene-vinyl acetate (ethylene-vinylacetate, EVA, Elvax40W, E.I.Du Pont Company)
Polymethyl methacrylate (Jinan Rong Feng chemical industry)
Flatting silica (OK520 wins wound)
Elastic powder (5070D Japan refines greatly day)
Aqueous feel auxiliary agent (XR-301 west profit chemical industry)
Wax powder (polytetrafluoroethylwax wax powder SST-3 the U.S. SANYE)
Mill base (aqueous is without three liters of Foshan of resin type nano black mill base chemical industry)
Dispersant (PX4585 BASF)
Defoamer (NXZ section Ninghua is learned)
Levelling agent (57 this chemistry of sea inscription)
Nertralizer (DMAE engrave in sea this chemistry)
Hydrated magnesium silicate (AD sea ease chemistry)
Cosolvent (ethylene glycol monobutyl ether LG-DOW)
HDI hydrophilic isocyanates (2655 Bayer Bitterfeld GmbH)
The proportioning of the component in each embodiment is as shown in table 1.
Table 1: component A paint formula proportioning (unit: Kg)
* * refers to that polymethyl methacrylate refers to by the SiO that solution blended process prepares2Modifiying, method of modifying is the SiO of the ethyl acetate by polymethyl methacrylate and 2 times of weight and 0.2 times of weight2After mixing, then it is warming up to 60 DEG C, stirs 2 hours, after letting cool, evaporated under reduced pressure solvent, after cleaning with deionized water, dry.
Preparation method is:
1, by aqueous elastic polyaminoester emulsion, cosolvent (being additionally added polymethyl methacrylate and/or ethylene-vinyl acetate in embodiment 4～7) mix homogeneously, stir 10 minutes at 500 revs/min；
2, produce adding after aqueous dispersion, aqueous defoamer, aqueous levelling dilution agent in cylinder with the deionized water of half, adopt 500 revs/min to stir 5 minutes；
3, limit adopts 500 revs/min to add nano color paste, elastic powder, flatting silica, aqueous feel auxiliary agent, hydrated magnesium silicate while stirring, adopts 1200 revs/min to disperse 40 minutes；
4, remaining deionized water adjustment paint viscosity is adopted to 18～24S(T-4 cup), add nertralizer, pH value controls between 8～9.
Performance test
Test method is: according to component A: component B=10:1 weight ratio carries out proportioning, adopts deionized-distilled water to carry out the adjustment of spray viscosity, spray viscosity is adjusted to 13～15S(NK-2 cup), adopt 70～80 DEG C × 30～40min.Resistance to ethanol and RCA test dry plate film thickness and control at 40～60 μm, place test in 48 hours after drying under room temperature condition.
The gloss detection of paint adopts GB1743-1979 (1989) " gloss of film degree algoscopy "；The detection of adhesive force adopts the test of GB/T9286-1998 hundred lattice method；Hardness determination adopts GB/T6739-2006 " paint and varnish pencil method measures hardness of paint film "；Ethanol-tolerant test adopts the resistance to alcohol repellency detection method of SS-00208 (99.7% dehydrated alcohol, 1KG power are once back and forth)；Wear-resisting test adopts SS-00208 wearability detection method (adopting 512 sand rubbers, 1.5KG power, be once back and forth)；The paper tape of resistance to RCA friction adopts the standard method of ASTMF2357-04；Thermal shock test adopts MOTOROLA.INCG.7 item detection method (being positioned over by dry plate under-20 DEG C of-+60 DEG C of conditions, its humidity is 90%, 2 hours is a circulation)；The method of testing of weather resistance is QUVA artificial ageing in GB/T1865-1997；Combination property respectively with reference examples 1:CN101921538A elastic handfeel paint (Dongguan City wear fine jade paint company limited, Chen Xinhong, Liu Zhixing)；Reference examples 2:CN102120911A two ingredient elastic handfeel paint and preparation method, Shenzhen Shenshaier Industry Co., Ltd., Yang Jianguo) contrast.Result of the test is as shown in table 2.
Table 2: embodiment 1～7 dry plate the performance test results
Table 3: reference examples dry plate the performance test results
It can be seen that elastic handfeel paint provided by the invention is better than comparative example at aspect of performances such as rub resistance, resistance to RCA performance, cold-hot impacts from table 2 and table 3.It addition, embodiment 4 improves resistance to RCA performance by addition polymethyl methacrylate, in embodiment 5, improve salt spray resistance by addition ethylene-vinyl acetate.
Claims (5)
1. an aqueous elastic handfeel paint, it is characterized in that, include following component by weight: component A: aqueous polyurethane emulsion 30～40 parts, aqueous dispersion 0.3～0.6 part, mill base 3～6 parts, flatting silica 3～5 parts, elastic 5～10 parts of powder, feel auxiliary agent 2～5 parts, 0.2～0.5 part of wax powder, levelling agent 0.2～0.4 part, defoamer 0.1～0.3 part, hydrated magnesium silicate 1～2 part, nertralizer 0.5～1 part, cosolvent 1～2 part, deionized water 5～10 parts, ethylene-vinyl acetate 5～10 parts, polymethyl methacrylate 3～5 parts；Component B:HDI hydrophilic isocyanates；The weight ratio of component A and component B is 8～12:1.
2. the preparation method of the aqueous elastic handfeel paint described in claim 1, it is characterised in that comprise the steps:
1st step, aqueous polyurethane emulsion, cosolvent, polymethyl methacrylate, ethylene-vinyl acetate are stirred；
2nd step, produce adding after aqueous dispersion, defoamer, levelling agent dilution in cylinder with a part of deionized water, stir；
3rd step, add mill base, elastic powder, flatting silica, feel auxiliary agent, hydrated magnesium silicate while stirring, be uniformly dispersed；
4th step, add remaining deionized water and nertralizer, stir, obtain component A.
3. the preparation method of aqueous elastic handfeel paint according to claim 2, it is characterised in that: in the 1st step, speed of agitator 400～600 revs/min, mixing time 5～10 minutes.
4. the preparation method of aqueous elastic handfeel paint according to claim 2, it is characterised in that: in the 2nd step, speed of agitator 400～600 revs/min, mixing time 5～10 minutes.
5. the preparation method of aqueous elastic handfeel paint according to claim 2, it is characterised in that: in the 3rd step, speed of agitator 400～600 revs/min, the rotating speed in dispersion steps 1000～1200 revs/min, jitter time 30～40 minutes.
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| CN105255351B (en) * | 2015-10-08 | 2017-07-28 | 江苏华夏制漆科技有限公司 | A kind of Ball-shaped glass container with water and inner decorative articles coating and preparation method thereof |
| CN105385336A (en) * | 2015-12-29 | 2016-03-09 | 上海宏盾防伪材料有限公司 | Velvet anti-scratch waterborne polyurethane paint |
| CN105801895A (en) * | 2016-04-14 | 2016-07-27 | 河北正洋建材有限公司 | PVC hand-touch film and preparing method thereof |
| CN107022294A (en) * | 2017-05-05 | 2017-08-08 | 浙江丽水德宇新材料有限公司 | A kind of aqueous dumb light rod elastomer pencil lacquer and preparation method thereof |
| CN109021804A (en) * | 2018-06-25 | 2018-12-18 | 湖南松井新材料股份有限公司 | Aqueous hand-feeling coating and its preparation method and application |
| CN111040601B (en) * | 2019-12-27 | 2021-08-03 | 上海君子兰新材料股份有限公司 | Aqueous skin-feel bi-component woodenware coating and application thereof |
| CN111621205A (en) * | 2020-06-30 | 2020-09-04 | 深圳市神漆新材料科技有限公司 | Baby skin paint and using method thereof |
| CN113201275B (en) * | 2021-05-11 | 2022-03-25 | 湖南帝京环保新材料有限公司 | Water-based double-component hand feeling paint capable of being recoated and preparation method and application thereof |
| CN114395331A (en) * | 2021-12-21 | 2022-04-26 | 卡秀万辉(无锡)高新材料有限公司 | Preparation method of water-based elastic hand feeling coating |
| CN114591661A (en) * | 2022-01-21 | 2022-06-07 | 宁国市茂发装饰材料有限公司 | Microcrystalline color 5D skin-feel art paint and preparation method thereof |
| CN115537106B (en) * | 2022-09-23 | 2024-02-09 | 中华制漆（深圳）有限公司 | Water-based hand feeling rubber coating and application method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1626586A (en) * | 2003-12-08 | 2005-06-15 | 中国科学院成都有机化学有限公司 | Water born paint in use for plastic painting dressing and preparation method |
| CN101108951A (en) * | 2007-08-30 | 2008-01-23 | 桂林工学院 | Aquosity bi-component polyurethane coloured paint and method of manufacturing the same |
| CN101659825B (en) * | 2008-08-28 | 2012-07-25 | 上海富臣化工有限公司 | Double-component aqueous nano scratch resistant wood coating and method for producing same |
| CN101845258B (en) * | 2009-03-28 | 2012-10-17 | 恒昌涂料（惠阳）有限公司 | Low-volatility and quick-drying aqueous toy coating and preparation method thereof |
| CN102618158B (en) * | 2012-03-23 | 2015-04-15 | 东莞大宝化工制品有限公司 | Aqueous essential oil for coating soft PVC (Poly Vinyl Chloride) and preparation method thereof |
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