CN104312220A - Environment-friendly waterborne type aluminum paste and preparation method thereof - Google Patents
Environment-friendly waterborne type aluminum paste and preparation method thereof Download PDFInfo
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Abstract
The invention discloses environment-friendly waterborne type aluminum paste. The waterborne type aluminum paste is characterized by consisting of the following raw materials in parts by weight: 40-60 parts of micron-size flaky aluminum powder, 0.1-0.2 part of hydroxy propyl distarch phosphate, 0.1-0.2 part of maltodextrin, 0.2-0.4 part of hydroxypropyl-beta-cyclodextrin, 10-12 parts of tetraethoxysilane, 0.2-0.4 part of sorbitol, 0.1-0.2 part of sodium caseinate, 0.2-0.4 part of dipotassium glycyrrhizinate, 0.2-0.4 part of a silane coupling agent A-151, 0.5-1 part of carboxymethyl chitosan, 6-8 parts of carboxymethyl cellulose, 4-6 parts of poly dimethyl diallyl ammonium chloride and 8-10 parts of auxiliaries. The environment-friendly waterborne type aluminum paste disclosed by the invention is safe and environmentally friendly, does not contain harmful volatile substance and avoids potential harmful effects on the human health and is suitable for being used in an indoor environment. In a waterborne paint system, the environment-friendly waterborne type aluminum paste has high dispersion, relatively good adhesion in coating and good coating effects.
Description
Technical field
The present invention relates to metallic pigment field, be specifically related to a kind of environment-friendly water-based aluminium-silver slurry and preparation method thereof.
Background technology
Aluminium-silver slurry is formed primarily of aluminium powder, solvent, auxiliary agent, and through special processing process and surface-treated pigment, aluminium flake any surface finish is smooth, excellent with coating system matching, have excellent luminous reflectanc and metalluster, paint film has " effect ", and decorative effect is attractive in appearance.
Along with the deterioration of industrialized development and environment, protection of the environment become the universe common faced by problem.Traditional solvent-borne aluminium-silver slurry contains a large amount of VOC(volatile organic matter), evaporate in coating process in air, atmospheric environment is polluted.Therefore, water aluminum-silver slurry replaces solvent based product to become new trend.The chemical reaction but aluminium powder easily reacts in water-based system, therefore, the surface treatment of aluminium powder is most important.
Summary of the invention
The object of this invention is to provide the environment-friendly water-based aluminium-silver slurry that a kind of coating adherence energy is good, consistency is high.
The present invention is achieved by the following technical solutions:
A kind of environment-friendly water-based aluminium-silver slurry, it is made up of the raw material of following weight parts:
Micron-stage sheet-like aluminium powder 40-60, hydroxypropyl Staragel 90V 0.1-0.2, maltodextrin 0.1-0.2, hydroxypropyl-beta-cyclodextrin 0.2-0.4, tetraethoxy 10-12, sorbyl alcohol 0.2-0.4, Sodium Caseinate 0.1-0.2, Rizinsan K2 A2 0.2-0.4, silane coupling A-151 0.2-0.4, cm-chitosan 0.5-1, carboxymethyl cellulose 6-8, Poly Dimethyl Diallyl Ammonium Chloride 4-6, auxiliary agent 8-10;
Auxiliary agent is made up of the raw material of following weight part:
Gelatin 1-2, sodium-based montmorillonite 1-2, sorbester p17 0.2-0.4, citric acid 0.4-0.6, sodium cocoyl glutamate 0.05-0.1, Sunmorl N 60S 0.2-0.4, water 20-40;
The preparation method of auxiliary agent:
Gelatin, citric acid and Sunmorl N 60S are added to the water; 60-80 DEG C, 600-800r/min is stirred to and dissolves completely; add sorbester p17, sodium cocoyl glutamate and sodium-based montmorillonite; 40-60 DEG C, 1200-1500r/min stirs 15-30min; by filter cake vacuum-drying after filtration; be ground to 1000-1500 order, obtain final product.
A preparation method for environment-friendly water-based aluminium-silver slurry, comprises the following steps:
(1) mixed solvent of ammoniacal liquor, distilled water and ethanol is prepared as component A, with alcohol dilution tetraethoxy as B component; Micron-stage sheet-like aluminium powder is added in appropriate dehydrated alcohol, add silane coupling A-151, after stirred under nitrogen atmosphere 0.5-1h, with 1-2 drip/rate of addition of s drips component A and B component simultaneously respectively, dropping limit, limit is stirred, dropwise rear 40-45 DEG C of reaction 6-8h, with absolute ethanol washing after suction filtration, vacuum-drying, weight ratio=the 1:2:5 of ammoniacal liquor, distilled water and ethanol in described component A, described ammonia concn is 25%, the weight ratio=1:2 of ethanol and tetraethoxy in described B component;
(2) in reaction vessel, appropriate 0.5-1% sodium carbonate solution is added, add Poly Dimethyl Diallyl Ammonium Chloride 500-600r/min and stir 5-15min, add the aluminium powder after process in (1) again, 5-10min is stirred under same rotating speed, filter and filter cake ultrasonic wave in appropriate 0.5-1% sodium carbonate solution is disperseed, add carboxymethyl cellulose and cm-chitosan, 500-600r/min stirs 5-10min, stir 10-20min under adding the same rotating speed of hydroxypropyl Staragel 90V, maltodextrin and hydroxypropyl-beta-cyclodextrin again, filter;
(3) add the filter cake and all the other raw materials that obtain in (2) in a reservoir, under room temperature condition, 400-600r/min stirs the drying of 15-30min final vacuum, to obtain final product.
Advantage of the present invention is:
1. product safety environmental protection, not containing harmful volatile matter, avoids bringing potential detrimentally affect to HUMAN HEALTH, is applicable to indoor environment and uses;
2., by finishing, at aluminium powder surface double-coated silicon-dioxide and carboxymethyl cellulose, make aluminium powder have polymolecularity in aqueous coating system, and coating adherence is good, painting effect is good.
Embodiment
Non-limiting examples of the present invention is as follows:
Embodiment 1
A kind of environment-friendly water-based aluminium-silver slurry, is prepared from by the component raw material of following weight (kg):
Micron-stage sheet-like aluminium powder 50, hydroxypropyl Staragel 90V 0.15, maltodextrin 0.15, hydroxypropyl-beta-cyclodextrin 0.3, tetraethoxy 11, sorbyl alcohol 0.3, Sodium Caseinate 0.15, Rizinsan K2 A2 0.3, silane coupling A-151 0.3, cm-chitosan 0.6, carboxymethyl cellulose 7, Poly Dimethyl Diallyl Ammonium Chloride 5, auxiliary agent 9;
Wherein, auxiliary agent is made up of the raw material of following weight (kg):
Gelatin 1.5, sodium-based montmorillonite 1.5, sorbester p17 0.3, citric acid 0.5, sodium cocoyl glutamate 0.08, Sunmorl N 60S 0.3, water 30;
The preparation method of auxiliary agent:
Gelatin, citric acid and Sunmorl N 60S are added to the water, 80 DEG C, 800r/min is stirred to and dissolves completely, adds sorbester p17, sodium cocoyl glutamate and sodium-based montmorillonite; 60 DEG C, 1500r/min stirs 15min; by filter cake vacuum-drying after filtration, be ground to 1000 orders, obtain final product.
The preparation method of environment-friendly water-based aluminium-silver slurry comprises the following steps:
(1) mixed solvent of ammoniacal liquor, distilled water and ethanol is prepared as component A, with alcohol dilution tetraethoxy as B component; Micron-stage sheet-like aluminium powder is added in appropriate dehydrated alcohol, add silane coupling A-151, after stirred under nitrogen atmosphere 0.5h, drip component A and B component respectively with the rate of addition of 1/s, dropping limit, limit is stirred simultaneously, dropwise rear 40 DEG C of reaction 8h, with absolute ethanol washing after suction filtration, vacuum-drying, the weight ratio=1:2:5 of ammoniacal liquor, distilled water and ethanol in described component A, described ammonia concn is 25%, the weight ratio=1:2 of ethanol and tetraethoxy in described B component;
(2) in reaction vessel, appropriate 1% sodium carbonate solution is added, add Poly Dimethyl Diallyl Ammonium Chloride 600r/min and stir 5min, add the aluminium powder after process in (1) again, 10min is stirred under same rotating speed, filter and filter cake ultrasonic wave in appropriate 1% sodium carbonate solution disperseed, add carboxymethyl cellulose and cm-chitosan, 600r/min stirs 5min, stir 10min under adding the same rotating speed of hydroxypropyl Staragel 90V, maltodextrin and hydroxypropyl-beta-cyclodextrin again, filter;
(3) add the filter cake and all the other raw materials that obtain in (2) in a reservoir, under room temperature condition, 400r/min stirs the drying of 30min final vacuum, to obtain final product; .
Through inspection, the aluminium-silver slurry of the present embodiment has high white luminance, high covering power, good with aqueous coating system consistency, coating adherence is good, and film coated surface is smooth.
Claims (2)
1. an environment-friendly water-based aluminium-silver slurry, is characterized in that it is made up of the raw material of following weight parts:
Micron-stage sheet-like aluminium powder 40-60, hydroxypropyl Staragel 90V 0.1-0.2, maltodextrin 0.1-0.2, hydroxypropyl-beta-cyclodextrin 0.2-0.4, tetraethoxy 10-12, sorbyl alcohol 0.2-0.4, Sodium Caseinate 0.1-0.2, Rizinsan K2 A2 0.2-0.4, silane coupling A-151 0.2-0.4, cm-chitosan 0.5-1, carboxymethyl cellulose 6-8, Poly Dimethyl Diallyl Ammonium Chloride 4-6, auxiliary agent 8-10;
Described auxiliary agent is made up of the raw material of following weight part:
Gelatin 1-2, sodium-based montmorillonite 1-2, sorbester p17 0.2-0.4, citric acid 0.4-0.6, sodium cocoyl glutamate 0.05-0.1, Sunmorl N 60S 0.2-0.4, water 20-40;
The preparation method of described auxiliary agent is:
Gelatin, citric acid and Sunmorl N 60S are added to the water; 60-80 DEG C, 800-1000r/min is stirred to and dissolves completely; add sorbester p17, sodium cocoyl glutamate and sodium-based montmorillonite; 40-60 DEG C, 1200-1500r/min stirs 15-30min; by filter cake vacuum-drying after filtration; be ground to 1000-1500 order, obtain final product.
2. the preparation method of environment-friendly water-based aluminium-silver slurry according to claim 1, is characterized in that, comprise the following steps:
(1) mixed solvent of ammoniacal liquor, distilled water and ethanol is prepared as component A, with alcohol dilution tetraethoxy as B component; Micron-stage sheet-like aluminium powder is added in appropriate dehydrated alcohol, add silane coupling A-151, after stirred under nitrogen atmosphere 0.5-1h, with 1-2 drip/rate of addition of s drips component A and B component simultaneously respectively, dropping limit, limit is stirred, dropwise rear 40-45 DEG C of reaction 6-8h, with absolute ethanol washing after suction filtration, vacuum-drying, weight ratio=the 1:2:5 of ammoniacal liquor, distilled water and ethanol in described component A, described ammonia concn is 25%, the weight ratio=1:2 of ethanol and tetraethoxy in described B component;
(2) in reaction vessel, appropriate 0.5-1% sodium carbonate solution is added, add Poly Dimethyl Diallyl Ammonium Chloride 500-600r/min and stir 5-15min, add the aluminium powder after process in (1) again, 5-10min is stirred under same rotating speed, filter and filter cake ultrasonic wave in appropriate 0.5-1% sodium carbonate solution is disperseed, add carboxymethyl cellulose and cm-chitosan, 500-600r/min stirs 5-10min, stir 10-20min under adding the same rotating speed of hydroxypropyl Staragel 90V, maltodextrin and hydroxypropyl-beta-cyclodextrin again, filter;
(3) add the filter cake and all the other raw materials that obtain in (2) in a reservoir, under room temperature condition, 400-600r/min stirs the drying of 15-30min final vacuum, to obtain final product.
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| CN201410574943.5A CN104312220A (en) | 2014-10-25 | 2014-10-25 | Environment-friendly waterborne type aluminum paste and preparation method thereof |
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| CN201410574943.5A CN104312220A (en) | 2014-10-25 | 2014-10-25 | Environment-friendly waterborne type aluminum paste and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105602295A (en) * | 2015-12-17 | 2016-05-25 | 徐昶 | Solid type pigment composition and preparation method thereof |
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| JP2001167637A (en) * | 1999-12-10 | 2001-06-22 | Catalysts & Chem Ind Co Ltd | Transparent-film-formed substrate, coating solution for formation of transparent film, and display device |
| CN102794452A (en) * | 2011-05-24 | 2012-11-28 | 合肥旭阳铝颜料有限公司 | Preparation method of aluminum silver paste |
| CN102834469A (en) * | 2010-03-30 | 2012-12-19 | 旭化成化学株式会社 | Metallic pigment composition |
| CN103740144A (en) * | 2012-08-07 | 2014-04-23 | 江苏伊特复合新材料有限公司 | Preparation method of waterborne type aluminum paste with good coating effect |
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2014
- 2014-10-25 CN CN201410574943.5A patent/CN104312220A/en active Pending
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| JPS62256876A (en) * | 1986-04-30 | 1987-11-09 | Matsushita Electric Ind Co Ltd | Nonflammable paint for electronic component |
| JP2001167637A (en) * | 1999-12-10 | 2001-06-22 | Catalysts & Chem Ind Co Ltd | Transparent-film-formed substrate, coating solution for formation of transparent film, and display device |
| CN102834469A (en) * | 2010-03-30 | 2012-12-19 | 旭化成化学株式会社 | Metallic pigment composition |
| CN102794452A (en) * | 2011-05-24 | 2012-11-28 | 合肥旭阳铝颜料有限公司 | Preparation method of aluminum silver paste |
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