CN100441645C - Nitrocellulose crack lacquer, and its preparing method and use condition - Google Patents
Nitrocellulose crack lacquer, and its preparing method and use condition Download PDFInfo
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- CN100441645C CN100441645C CNB200410037957XA CN200410037957A CN100441645C CN 100441645 C CN100441645 C CN 100441645C CN B200410037957X A CNB200410037957X A CN B200410037957XA CN 200410037957 A CN200410037957 A CN 200410037957A CN 100441645 C CN100441645 C CN 100441645C
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- lacquer
- nitrocellulose
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- mixed solvent
- crack
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Abstract
The present invention relates to nitrocellulose lacquer which is used for decoration and protection in the fields, such as woodenware, furniture, door windows and automobile repair for decades of years. In recent years, people requires more furniture and door windows which have crack effects on the surfaces; though traditional nitrocellulose lacquer has favorable lacquer film properties, the traditional nitrocellulose lacquer can not take crack effects after conventional spray brushing and coat brushing. On the basis of inheritance of the prior art, the present invention provides nitrocellulose lacquer, a preparation method thereof and use conditions thereof, wherein the nitrocellulose lacquer is prepared from raw materials, such as cellulose nitrate, alkyd resin, pigments, a filler, an auxiliary agent, a mixed solvent, etc. and has the advantages of easy preparation, favorable property, high solid content and crack effect after construction.
Description
Technical field
The present invention relates to a kind of nitro crack lacquer and preparation method thereof and working conditions, belong to coating industry.
Background technology
In China, pyroxylin(e)finish is used for the decoration and the protection in fields such as woodenware, furniture, door and window, car repair, the history of existing decades.Guangzhou scientific and technological development main office Tang Xi chemical plant is at patent of invention 89107813 (the publication number CN1041380A of application in 1989, open day April 8 nineteen ninety) disclose and a kind ofly do not used the pyroxylin(e)finish that contains benzene solvent, thereby eliminated the harm of pyroxylin(e)finish HUMAN HEALTH.Cong Rongchen is at patent of invention 96115912 (the publication number CN1171423A of application in 1996, open day on January 28th, 1998) disclosing a kind of is the pyroxylin(e)finish of main film forming substance with nitrocellulose, also add a small amount of pentaerythritol resin in this pyroxylin(e)finish and carry out modification, improved the mechanical property of pyroxylin(e)finish thus greatly, in construction process, also has the good advantage of humidity resistance.In recent years, along with standard of living, aesthetic consciousness and personalized improving constantly of requiring, people have the furniture of crackle effect and the demand of door and window also further to increase to the surface.And traditional pyroxylin(e)finish, though the paint film property excellence does not crack effect after the construction.Therefore, how to make pyroxylin(e)finish construction back produce ideal crackle effect, become the task of top priority.
Summary of the invention
The purpose of this invention is to provide the nitro crack lacquer that can crack effect and excellent performance after a kind of construction.
Another object of the present invention provides a kind of preparation method and working conditions of nitro crack lacquer.
For achieving the above object, a technical scheme of the present invention provides a kind of nitro crack lacquer, this nitro crack lacquer mainly is made up of nitrocellulose, Synolac, pigment, filler, mixed solvent and auxiliary agent, weight ratio between each component is a nitrocellulose: Synolac: pigment: filler: mixed solvent: except auxiliary agent=1: 0.3～0.6: 0.8～1.5: 3.0～5.2: 4.5～6.0: 0～0.2,0.
Draw together auxiliary agent at nitro crack enamel-cover described in the technique scheme of the present invention, be made up of any one or two kinds in wetting dispersing agent and flow agent, the anti-flooding agent, consumption is 0～0.2 times of nitrocellulose, except 0; The composition of described wetting dispersing agent is a modified polyurethane, and consumption is 0～0.1 times of described nitrocellulose, except 0, adopts EFKA-4047, BYK-110 or BYK-163; The composition of described flow agent is organically-modified siloxanes or fluorine-carbon modified polyacrylic acid, and consumption is 0～0.02 times of described nitrocellulose, adopts EFKA-3033 or EFKA-3777; The composition of described anti-flooding agent is the modification nonionic silicones, and consumption is 0～0.08 times of described nitrocellulose, adopts DP-903;
Can select viscosity at nitrocellulose described in the technique scheme of the present invention is the product of 1/8 second, 1/4 second or 1/2 second specification, described Synolac is Viscotrol C or olive seed oil modified alkyd resin, adopt the short oil or the medium oil alkyd of modification, as 3370 Synolac (Jiangsu three wooden company products), described pigment comprises carbon black, organic red, titanium dioxide etc., and described filler comprises talcum powder and light calcium carbonate etc.Be made up of ester, alcohol, ketone, aromatic hydrocarbon material at mixed solvent described in the technique scheme of the present invention, the weight ratio between each component is an ester: ketone: alcohol: aromatic hydrocarbon=1: 0.1～0.3: 0.15～0.4: 0～0.3; Described ester is a coatings industry ester commonly used, adopts N-BUTYL ACETATE or vinyl acetic monomer etc.; Described ketone is coatings industry ketone commonly used, adopts ring ethyl ketone or acetone etc.; Described alcohol is coatings industry alcohol commonly used, adopts ethanol, butanols or diacetone alcohol etc.; Described aromatic hydrocarbon is coatings industry aromatic hydrocarbon commonly used, adopts toluene, dimethylbenzene, S100 or S150 etc.Through a large amount of experimental analyses, preferably being made up of N-BUTYL ACETATE, butanols, vinyl acetic monomer, acetone, diacetone alcohol of described mixed solvent, the weight ratio between each component is a N-BUTYL ACETATE: butanols: vinyl acetic monomer: acetone: diacetone alcohol=1: 0.2～0.3: 0.2～0.3: 0.1～0.2: 0.05～0.1.Nitro crack lacquer provided by the invention has the following advantages:
1. nitro crack of the present invention lacquer can reach 40-80% owing to adopt higher solid part, can natural cracking after the construction, reach ideal crackle effect;
2. nitro crack of the present invention lacquer is fit to airless spraying, electrostatic spraying operation, but both normal temperature self-drying was dry, but also low-temperature bake drying can satisfy streamline operration, and technology is simple, and province's energy saves time;
The paint film mechanical property excellence of nitro crack lacquer 3. of the present invention.
For achieving the above object, another technical scheme of the present invention provides a kind of preparation method of nitro crack lacquer, and this method may further comprise the steps:
1. by the formulation weight ratio, add the mixed solvent of 50-90%, add nitrocellulose then, stir while adding, until becoming transparent cellulose nitrate Colloidal fluid;
2. add Synolac and wetting dispersing agent, the back that stirs adds paint filler, and is pre-dispersed, grinds, and reaches the regulation fineness;
3. press formula ratio and add the residue mixed solvent, adjust viscosity, filter;
4. through metering packing after the assay was approved.
Step described in the technique scheme of the present invention 3. in, when adding the residue mixed solvent, also can add other auxiliary agents except that wetting dispersing agent, promptly add the mixture of flow agent or anti-flooding agent or flow agent and anti-flooding agent.
Drying conditions when nitro crack provided by the invention lacquer uses is: 5～80 ℃ of drying temperatures, time of drying 0.5～8h, drying means can adopt prior art such as normal temperature or cryodrying etc.
Embodiment
It is as shown in table 1 that some raw material product that relate in this specification sheets are numbered the situation of corresponding manufacturer:
Table 1.
| Product specification or manufacturer | Name of product or numbering |
| Viscosity is the product of 1/8 second, 1/4 second or 1/2 second specification, is the commercially available prod | Nitrocellulose |
| Jiangsu three wooden company products | 3370 Synolac: castor oil modified medium oil alkyd |
| Bi Ke chemical company product | BYK-110，BYK-163 |
| EFKA company product | EFKA-4047、EFKA-3033、 EFKA-3777 |
| The modest company of moral product | DP-903 |
| The solvent code name is aromatic hydrocarbon, commercially available or imported product | S100、S150 |
Be illustrated below by specific embodiment, but the present invention is not limited to following preferred embodiment.
Embodiment 1
In the beaker of 1000ml, add the 400.0g mixed solvent, add 1/8 second nitrocellulose of 4.0g then, stir while adding, until becoming transparent cellulose nitrate Colloidal fluid, the Synolac and the 5.0g wetting dispersing agent that add 30.0g then, the organic red 40.0g of back adding stirs, titanium dioxide 40.0g, light calcium carbonate 350.0g, give and disperse to grind with sand mill afterwards, add flow agent EFKA-3033 1.0g and mixed solvent 50.0g when reaching granularity 35 μ m, after mixing, adjust viscosity to viscosity 〉=80 second, detect performance, filtration, packing.Implementing 1 prepared nitro crack coats with lacquer to such an extent that the film performance test result is as shown in table 3.
Embodiment 2～4
With preparing the nitro crack lacquer with embodiment 1 same method, concrete material name of concrete raw material and proportioning (wt/wt) that embodiment 2-4 uses are as shown in table 2, and their film performance test result is as shown in table 3.
Table 2.
Table 3.
| Test event | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Pencil hardness | H | H | H | H |
| Sticking power (drawing circle method/level) | 1 | 1 | 1 | 1 |
| Snappiness/mm flawless, nothing come off | 1 | 1 | 1 | 1 |
| Shock resistance 50kgcm | By | By | By | By |
| Recoatability | Well | Well | Well | Well |
| The crackle effect | Well | Well | Well | Well |
Comparative Examples 1-3
With preparing the nitro crack lacquer (Comparative Examples 1-3) of prior art with same method, concrete material name of concrete raw material and proportioning (wt/wt) that embodiment 2-4 uses are as shown in table 4, and their film performance test result is as shown in table 5:
Table 4.
Table 5.
| Test event | Embodiment 1 | Comparative Examples 1 | Comparative Examples 2 | Comparative Examples 3 |
| Pencil hardness | H | H | H | H |
| Sticking power (drawing circle method/level) | 1 | 1 | 1 | 1 |
| Snappiness/mm flawless, nothing come off | Qualified | Qualified | Qualified | Qualified |
| Shock resistance 50kgcm | By | By | By | By |
| Recoatability | Well | Well | Well | Well |
| The crackle effect | Well | The flawless effect | The flawless effect | The flawless effect |
From the comparing result of the film performance test of table 3 and table 5 nitro crack lacquer as seen, the crackle effect of nitro crack lacquer provided by the invention (embodiment 1-4) is more obvious than prior art (Comparative Examples 1-3), and other mechanicalness is all identical with Comparative Examples.
In sum; nitro crack lacquer of the present invention is fit to airless spraying, electrostatic spraying operation; both but normal temperature self-drying was dry; but also low-temperature bake drying; can satisfy streamline operration; can reach ideal crackle effect after the construction, this product can be widely used in the covering with paint and the protection in fields such as furniture, door and window.
Although describe the present invention in conjunction with the preferred embodiments, but the present invention is not limited to the foregoing description and accompanying drawing, should be appreciated that, under the guiding of the present invention's design, those skilled in the art can carry out various modifications and improvement, and claims have been summarized scope of the present invention.
Claims (8)
1. a nitro crack coats with lacquer, this nitro crack lacquer mainly is made up of nitrocellulose, Synolac, pigment, filler, mixed solvent and auxiliary agent, weight ratio between each component is a nitrocellulose: Synolac: pigment: filler: mixed solvent: except auxiliary agent=1: 0.3～0.6: 0.8～1.5: 3.0～5.2: 4.5～6.0: 0～0.2,0.
2. nitro crack lacquer according to claim 1, it is characterized in that, described auxiliary agent, form by any one or two kinds in wetting dispersing agent and flow agent, the anti-flooding agent, the composition of described wetting dispersing agent is a modified polyurethane, used weight is 0～0.1 times of described nitrocellulose, except 0, adopts E FKA-4047 or BYK-110 or BYK-163; The composition of described flow agent is organically-modified siloxanes or fluorine-carbon modified polyacrylic acid, and used weight is 0～0.02 times of described nitrocellulose, adopts EFKA-3033 or EFKA-3777; The composition of described anti-flooding agent is the modification nonionic silicones, and used weight is 0～0.08 times of described nitrocellulose, adopts DP-903.
3. nitro crack lacquer according to claim 1 is characterized in that described Synolac is Viscotrol C or olive seed oil modified alkyd resin, adopts the short oil or the medium oil alkyd of modification.
4. nitro crack lacquer according to claim 1 is characterized in that described mixed solvent is made up of ester, alcohol, ketone, aromatic hydrocarbon material, and the weight ratio between each component is an ester: ketone: alcohol: aromatic hydrocarbon=1: 0.1～0.3: 0.15～0.4: 0～0.3.
5. nitro crack lacquer according to claim 1, it is characterized in that, described mixed solvent is made up of N-BUTYL ACETATE, butanols, vinyl acetic monomer, acetone, diacetone alcohol, and the weight ratio between each component is a N-BUTYL ACETATE: butanols: vinyl acetic monomer: acetone: diacetone alcohol=1: 0.2～0.3: 0.2～0.3: 0.1～0.2: 0.05～0.1.
6. one kind prepares the method that the described nitro crack of claim 1 coats with lacquer, and this method may further comprise the steps:
1. by the formulation weight ratio, add the mixed solvent of 50-90%, add then
Nitrocellulose stirs while adding, until becoming transparent cellulose nitrate Colloidal fluid;
2. add Synolac and wetting dispersing agent, the back that stirs adds paint filler, and is pre-dispersed, grinds, and reaches the regulation fineness;
3. press formula ratio and add the residue mixed solvent, adjust viscosity, filter;
4. through metering packing after the assay was approved;
5. adopt normal temperature of the prior art or cryodrying in use, 5～80 ℃ of drying temperatures, 0.5～8 hour time of drying.
7. the preparation method of nitro crack according to claim 6 lacquer is characterized in that, described step 3. in, when adding the residue mixed solvent, add the mixture of flow agent or anti-flooding agent or flow agent and anti-flooding agent.
8. the using method of nitro crack according to claim 1 lacquer is characterized in that, the drying conditions when described nitro crack lacquer uses is: drying temperature 5-80 ℃, time of drying 0.5-8h.
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| CNB200410037957XA CN100441645C (en) | 2004-05-17 | 2004-05-17 | Nitrocellulose crack lacquer, and its preparing method and use condition |
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| CNB200410037957XA CN100441645C (en) | 2004-05-17 | 2004-05-17 | Nitrocellulose crack lacquer, and its preparing method and use condition |
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| CN100441645C true CN100441645C (en) | 2008-12-10 |
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| CN101210129B (en) * | 2006-12-30 | 2011-04-06 | 比亚迪股份有限公司 | Crackle lacquer, preparing method thereof and spraying method for the same |
| CN101081953B (en) * | 2007-07-09 | 2010-05-19 | 盖州市油漆化工厂 | Organosilicon nano enamel coating composition and preparation method thereof |
| CN102311675A (en) * | 2011-03-17 | 2012-01-11 | 三棵树涂料股份有限公司 | Anti-rust and anti-discoloration nitro-compound type transparent putty |
| CN102675988B (en) * | 2012-04-23 | 2014-05-21 | 广州立邦涂料有限公司 | Nitrocellulose crack paint, preparation method thereof and spraying method for paint with appearance in crack effect |
| CN102690443A (en) * | 2012-05-28 | 2012-09-26 | 广东德康化工实业有限公司 | High-solid-content nitrocotton liquid |
| CN102757698B (en) * | 2012-06-28 | 2014-08-13 | 广东千叶松化工有限公司 | Low-VOC (Volatile Organic Compounds) nitrolacquer |
| CN102746747B (en) * | 2012-06-28 | 2014-08-13 | 广东千叶松化工有限公司 | Nitro-wear resistant matte black paint |
| CN102993830A (en) * | 2012-11-30 | 2013-03-27 | 上海长润发涂料有限公司 | Undercoat with high adhesion |
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| CN103756392A (en) * | 2014-01-11 | 2014-04-30 | 王玲 | Efficient crack paint |
| CN105315860A (en) * | 2015-11-24 | 2016-02-10 | 安徽家德利门业有限公司 | Water-based alkyd paint for door and preparing method thereof |
| CN109206154A (en) * | 2018-11-16 | 2019-01-15 | 临海市朵纳卫浴有限公司 | A kind of artificial stone surface ice crack pattern processing method |
| CN115418140B (en) * | 2022-10-10 | 2023-05-09 | 中国第一铅笔有限公司 | Conductive pencil paint, preparation method thereof and touch screen pen applying same |
| CN116285506A (en) * | 2023-04-21 | 2023-06-23 | 肇庆市哈力化工有限公司 | Single-component self-cracking crack effect paint and preparation method and application thereof |
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