CN102863887B - Paint in self-skin polyurethane foam material use single-component mould - Google Patents
Paint in self-skin polyurethane foam material use single-component mould Download PDFInfo
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Abstract
The invention discloses paint in a kind of self-skin polyurethane foam material use single-component mould, also disclose its preparation method.Paint, is mainly used on self-skin polyurethane material in product aqueous one-component mould prepared by the present invention, provides the effects such as painted, the decoration to polyurethane material parts, protection.Be mainly used in automotive trim at present, the industry such as medicine equipment and furniture.Product strong covering power, tinting strength is good, has good sticking power, wear resistance and snappiness.Product first sprays solvent-borne type or aqueous release agent in use in mould, then paint in even application water-based mould, then cast polyurethane material, matched moulds, and the demoulding after foaming slaking completely, namely in-mould coating is evenly attached to product surface.
Description
Technical field
The invention belongs to the technical field of coating, specifically, is paint in self-skin polyurethane foam material use single-component mould.
Background technology
At present, on market, most coating products is all use after formed product, with spraying, roller coat, the modes such as showering by applying coating at product surface.And paint is the paint sprayed before in-mold molding in mould, difference is that general paint is in the shaping rear application of product (workpiece), and in mould, paint sprays before formed product.
Polyurethane material is one of outstanding synthetic resins of over-all properties.Because its synthon is wide in variety, reaction conditions is gentle, single-minded, controlled, formula adjustment leeway large and the microtexture feature of macromolecular material, coating, tamanori, porous plastics, synthon and elastomerics can be widely used in, become one of requisite material of people's clothing, food, shelter, row and high-technology field, itself constitute the material family of a multi items, multi-series, define complete polyurethane industrial system, this is not available for other resin.
At present, automotive upholstery, the components such as medicine equipment, have more parts to be use polyurethane foam material, as vehicle steering, seat etc.
At present, domestic market being all solvent based product for painting in the mould of self-skin polyurethane foamed material, only having the import of minority aqueous product from external.
At present, to polyurethane foam material many employings solvent based product on market, and be often outer spray mode.This series products generally has following shortcoming:
1. environment protecting is poor, and organic solvent (VOC) content of solvent based product is greater than 500g/l; The finished product paint film VOC discharges >500ug/m
3.
2. poor stability: solvent based product is main, and belong to hazardous substance, aqueous product is few more.
3. part industry (as automobile industry, medical device industry) is high to the requirement of coating products, and a lot of common coating can not be up to standard.As chemicals-resistant, solvent resistant, resistance to clean-out system, ageing resistance, wet-heat resisting, weathering resistance requires high.In solvent borne product, reach above-mentioned requirements, difficulty is little; But at aqueous product, particularly in single-component water-based product, because of the restriction of system itself, the resin that can select and auxiliary agent space very little, so be often difficult to meet above-mentioned requirements.
4. paint film is to the poor adhesive force of self-skin polyurethane foam material.
5. the snappiness of paint film is poor, and the toughness phase product that itself can not have with self-skin polyurethane material are joined.In sum, consider from environmental protection and application point, need to develop and aly meet environmental protection, safety requirements, water-based in-mould coating from foam material can be joined by perfect product again.
Summary of the invention
The object of the invention is to, paint in a kind of self-skin polyurethane foam material use single-component mould is provided.
The object of the invention is to, the preparation method of paint in a kind of self-skin polyurethane foam material use single-component mould is provided.
Paint, is mainly used on self-skin polyurethane material in aqueous one-component mould prepared by the present invention, provides the effects such as painted, the decoration to polyurethane material parts, protection.Be mainly used in automotive upholstery at present, the industry such as medicine equipment and furniture.
The technical problem that will solve required for the present invention, can be achieved through the following technical solutions:
As a first aspect of the present invention, paint in a kind of self-skin polyurethane foam material use single-component mould, its formula comprises following component, according to mass percent:
Wherein, preferred formula comprises following component, according to mass percent:
Further, according to prescription quality percentages, described aqueous polyurethane dispersion is 38.0 ~ 39%.
Further, according to prescription quality percentages, described polyester type water-base resin is 34.0 ~ 34.5%.
Better formula comprises following component, according to mass percent:
Wherein, in described self-skin polyurethane foam material use single-component mould, in paint product, solvent (VOC) content is less than 50g/l, and the finished product paint film VOC discharges <50ug/m
3.
Wherein, described aqueous polyurethane dispersion is the trade mark of Dutch DSM DSM is NeorezR650 product, and this product is pliable and tough, chemically-resistant, wear resistance are good, water-fast, and wet-heat resisting, weathering resistance are good, has good sticking power to multiple material.
Wherein, described polyester type water-base resin is the trade mark of Ning Baidi (Lamberti) is the product of ESACOTEPU36, this product is polyester monomer, solid part %35 ± 1, snappiness is high, medium hardness, paint film is hard and tough, sticking power is good, is applicable to plastic paint (PVC, rubber).
Wherein, described leveling auxiliary agent is the BYK-333 of German Bi Ke BYK, this product is polyether-modified Dimethicone Copolyol body, BYK-333 organosilicon flow agent organosilyl surface auxiliary agent provides good ground to soak by reducing coating surface tension force, even if also like this for the ground of wetting difficulty, and good shrinkproof pore performance, it also effectively increases surface slip and scratch resistance and adhesion inhibiting properties.
prevent the formation of Bei Nade whirlpool, improve levelling and gloss.It can at large for all solvent-borne types, no-solvent type and water-based paint system.Because it and all binder systems have excellent consistency therefore it can not produce the problem of dulling in varnish.
Wherein, described adhesion promoter is the trade mark of German Bi Ke BYK is the product of BYK-4500, and this product is high molecular weight block copolymer solution, main application: increase the sticking power on old coating film, active substance content is 40.
Wherein, described polyurethane thickener is the trade mark of German Bi Ke BYK is the product of BYK-425, a kind of novel, economy, wide spectrum, efficiently emulsion-type thickening agent, the liquid state adopting various of monomer BYK-425 to adjust water-borne coatings shear viscosity is not liquid high-shear thickening material containing this auxiliary agent of auxiliary rheological agents of VOC, is particularly useful for general industry coating, the epoxy primer of anticorrosion, heavy antisepsis, epoxy thick-film coating and two component polyurethane.
Wherein, described assorted aqueous color paste is the product of Bao Meishi or Degussa or BASF, is commercially available prod.
As a second aspect of the present invention, the preparation method of paint in a kind of self-skin polyurethane material with water single-component mould, according to mass percent, comprises the following steps:
(1) material is prepared according to formula,
Its formula comprises following component, according to mass percent:
(2) ready material is fed intake in order successively;
(3) whipping step, the moderate-speed mixer that step (2) fed intake is even, on demand by the aqueous color paste adjustment color of different colours, product can be obtained, in described self-skin polyurethane foam material use single-component mould, in paint product, solvent (VOC) content is less than 50g/l, and the finished product paint film VOC discharges <50ug/m
3.
Wherein, preferred formula comprises following component, according to mass percent:
In step (3), the rotating speed of described stirring is 400 ~ 600rpm.
Beneficial effect of the present invention:
Paint, is mainly used on self-skin polyurethane material in aqueous one-component mould prepared by the present invention, provides the effects such as painted, the decoration to polyurethane material parts, protection.It is for spraying coating process in mould, is different from traditional outer pressure spray process, effectively can reduces pollution, Loss reducing, increases product yield.
This product has strong covering power, tinting strength is good, sticking power good, wear resistance is good, and good snappiness.
This product is single-component system, and operation is simple.
This product is aqueous product, the tool feature of environmental protection, security, low VOC, low smell.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.Should be understood that following examples only for illustration of the present invention but not for limiting scope of the present invention.
The experimental technique of unreceipted actual conditions in the following example, usually conveniently condition, or the condition that manufacturer provides is carried out.
The preparation of paint in embodiment 1 aqueous one-component mould
Paint in self-skin polyurethane material with water single-component mould, its formula comprises following component, according to mass percent:
Aqueous polyurethane dispersion is the trade mark of Dutch DSM DSM is Neorez R650 product.
The product of polyester type water-base resin to be the trade mark of Ning Baidi (Lamberti) be ESACOTE PU36.
Described leveling auxiliary agent is the BYK-333 of German Bi Ke BYK.
Adhesion promoter is the trade mark of German Bi Ke BYK is the product of BYK-4500.
Polyurethane thickener is the trade mark of German Bi Ke BYK is the product of BYK-425.
Assorted aqueous color paste is the product of Bao Meishi or Degussa or BASF.Above product is commercially available prod.
Each formula unit of table 1 Kg
| Formula 1 | Formula 2 | Formula 3 | Formula 4 | Formula 5 | |
| Aqueous polyurethane dispersion | 35.0 | 43.5 | 35.0 | 32.0 | 38.0 |
| Polyester type water-base resin | 35.0 | 30.0 | 39.0 | 38.0 | 34.0 |
| Leveling auxiliary agent | 0.5 | 0.5 | 0.5 | 0.8 | 0.8 |
| Water | 12.0 | 10.0 | 10.0 | 13.2 | 10.7 |
| Dihydroxypropane single-ether | 5.0 | 3.0 | 3.0 | 3.0 | 3.0 |
| Defoamer | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| Adhesion promoter | 3.0 | 3.5 | 3.0 | 3.5 | 3.0 |
| Polyurethane thickener | 1.0 | 1.0 | 1.0 | 1.0 | 2.0 |
| Assorted aqueous color paste | 8.0 | 8.0 | 8.0 | 8.0 | 8.0 |
Wherein, preferred formula is 5.
The preparation method of paint in self-skin polyurethane material with water single-component mould,
(1) material is prepared according to above-mentioned formula;
(2) fed intake successively in order by ready material, 400 ~ 600rpm stirs, and root Ju needs to adjust color, can obtain product.
The detection of paint in embodiment 2 aqueous one-component mould
Paper examines weather Alternating Test, sticking power, resistance to actinic technical indicator, according to following standard or method:
(1) weather Alternating Test: without obvious outward appearance and degradation after 10 circulations: by PV 2005 testing standard.
(2) sticking power Gt 0-1:DIN EN ISO 2409.
(3) look of resistance to illumination (by GB, T 16422.2-1999) test, color grey scale more than 4 (judging by DIN EN 20105-A02).
Contrast, see table 2 with commercially available solvent-based two-component product.
The detection of paint performance in table 2 aqueous one-component mould
Paint in aqueous one-component mould prepared by the present invention, safety and environmental protection, functional.
1. environmental protection: in product, solvent (VOC) content is dropped to be less than 50g/l by the 500g/l that is greater than of original (solvent borne), and maximum amplitude reduces the pollution to environment;
The finished product paint film VOC discharges from >500ug/m
3drop to <50ug/m
3.
2. safety: belong to aqueous product, nontoxic, tasteless, nonirritant, non-dangerous goods;
3. product performance index can meet automotive upholstery, medicine equipment, and the industries such as furniture are to the requirement of coating products.
4. sticking power: the sticking power of single-component water-based internal die paint on self-skin polyurethane is the key of this research and development product success.The present invention adopts spraying technology in mould, and coordinates multiple aqueous promoter, solves the problem of sticking power, and sticking power can reach 0 grade.
5. snappiness: the present invention can meet the flexibility requirements of urethane material to paint film.
6. chemicals-resistant: use the product (as automotive upholstery, medicine equipment etc.) of self-skin polyurethane material to have very high chemicals-resistant requirement, as artificial perspiration resistance's liquid, resistance to hand lotion, solvent resistant, resistance to clean-out system etc.In solvent borne product, reach above-mentioned requirements, difficulty is little; But at aqueous product, particularly in water-based mono-component product, because the restriction of system itself meets above-mentioned requirements.The present invention selects urethane resin, and through composite, and coordinate can various auxiliary agent, makes product reach above-mentioned requirements.
7. ageing resistance (high-temp resisting high-humidity resisting, weathering resistance): product prepared by the present invention, through the resistance to illumination test of more than 500h, meets the requirements, may be used for the product (as automotive upholstery, medicine equipment etc.) of self-skin polyurethane material.
The present invention is sprayed coating in the water-based mould of the unique batch in the whole nation on self-skin polyurethane foam material, is mainly applicable to the industries such as automotive upholstery, medicine equipment and furniture.
The feature of paint in mould prepared by the present invention:
1. effectively can intercept the xanthochromia of foamed material; Improve the surface abrasion resistance of foam material; Hide the surface imperfection caused by foam process,
2. the application art of this product can make layered product reproduce mould lines truly, improves the expressive force of product appearance.
3. spraying coating process in mould, avoids the shortcoming such as excessive spraying, aftertreatment, poor adhesive force brought in conventional spray paint, substantially increases product quality, shorten production technique, improve production efficiency, reduce production cost.
More than show and describe ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (7)
1. paint in a self-skin polyurethane foam material use single-component mould, it comprises following component, according to mass percent:
2. paint in aqueous one-component mould according to claim 1, it is characterized in that, according to mass percent, described aqueous polyurethane dispersion is 38.0 ~ 39%.
3. paint in aqueous one-component mould according to claim 1, it is characterized in that, according to mass percent, described polyester type water-base resin is 34.0 ~ 34.5%.
4. paint in aqueous one-component mould according to claim 1, is characterized in that, in described self-skin polyurethane foam material use single-component mould, in paint product, solvent VOC content is less than 50g/l, and the finished product paint film VOC discharges <50ug/m
3.
5. the preparation method painted in self-skin polyurethane material with water single-component mould as claimed in claim 1, according to mass percent, comprises the following steps:
(1) prepare material according to formula, it comprises following component, according to mass percent:
(2) ready material is fed intake in order successively;
(3) whipping step, step (2) is fed intake and stirs, on demand by the aqueous color paste adjustment color of different colours, product can be obtained, in described self-skin polyurethane foam material use single-component mould, in paint product, solvent VOC content is less than 50g/l, and the finished product paint film VOC discharges <50ug/m
3.
6. preparation method according to claim 5, is characterized in that, comprises following component, according to mass percent:
7. preparation method according to claim 5, is characterized in that, in step (3), the rotating speed of described stirring is 400 ~ 600rpm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210362787.7A CN102863887B (en) | 2012-09-25 | 2012-09-25 | Paint in self-skin polyurethane foam material use single-component mould |
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| CN201210362787.7A CN102863887B (en) | 2012-09-25 | 2012-09-25 | Paint in self-skin polyurethane foam material use single-component mould |
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| CN102863887B true CN102863887B (en) | 2015-08-19 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106675380B (en) * | 2016-12-20 | 2019-12-27 | 东来涂料技术（上海）股份有限公司 | Safe and environment-friendly water-based leather paint for automotive TPU (thermoplastic polyurethane) interior decoration and preparation method thereof |
| CN107312438B (en) * | 2017-08-22 | 2020-08-18 | 长春富维安道拓汽车饰件系统有限公司 | Coating material for improving low-temperature bursting property of PVC (polyvinyl chloride) slush molding skin and spraying method |
| CN108300238A (en) * | 2018-01-30 | 2018-07-20 | 宝美施化工(上海)有限公司 | Paint and preparation method thereof in self-skin polyurethane material with water two-component mould |
| CN108299668B (en) * | 2018-01-30 | 2021-02-05 | 宝美施化工(上海)有限公司 | Low-odor plastic-spraying-molded automobile instrument board material and preparation method thereof |
| CN112920694A (en) * | 2021-01-27 | 2021-06-08 | 万辉(广州)高新材料有限公司 | Water-based paint and spraying method |
| CN113737531B (en) * | 2021-09-26 | 2023-10-20 | 深圳市联星服装辅料有限公司 | Dipping liquid, aqueous polyurethane dipping polyester rope and preparation method thereof |
| CN116855161A (en) * | 2023-06-25 | 2023-10-10 | 漳州台兴化工涂料有限公司 | Surface water-based paint sprayed on PU foaming model and preparation process thereof |
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| CN101597459A (en) * | 2009-07-29 | 2009-12-09 | 无锡市新景涂料有限公司 | One one-liquid single-component polyurethane internal die paint and using method thereof |
| CN102250536A (en) * | 2011-05-24 | 2011-11-23 | 东来涂料技术（上海）有限公司 | Environmentally-friendly water-based single-component solid-color automobile refinishing paint and preparation method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101597459A (en) * | 2009-07-29 | 2009-12-09 | 无锡市新景涂料有限公司 | One one-liquid single-component polyurethane internal die paint and using method thereof |
| CN102250536A (en) * | 2011-05-24 | 2011-11-23 | 东来涂料技术（上海）有限公司 | Environmentally-friendly water-based single-component solid-color automobile refinishing paint and preparation method thereof |
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