CN105153764A - High-tenacity and shock-proof bactericidal diatom ooze coating - Google Patents
High-tenacity and shock-proof bactericidal diatom ooze coating Download PDFInfo
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- CN105153764A CN105153764A CN201510570171.2A CN201510570171A CN105153764A CN 105153764 A CN105153764 A CN 105153764A CN 201510570171 A CN201510570171 A CN 201510570171A CN 105153764 A CN105153764 A CN 105153764A
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Abstract
The invention discloses high-tenacity and shock-proof bactericidal diatom ooze coating, which comprises the following raw materials in parts by weight: 40 to 50 parts of nature diatomite, 14 to 16 parts of negative ion powder, 8 to 12 parts of polylactic acid chelated silver ion bactericide, 12 to 15 parts of light calcium carbonate, 9 to 12 parts of bentonite, 5 to 8 parts of talcum powder, 1.8 to 2.2 parts of dispersing agent, 1.2 to 1.5 parts of coalescing agent, 1.5 to 1.8 parts of emulsifier, 3 to 6 parts of pigment, 1.6 to 1.9 parts of wetting agent, 1.1 to 1.5 parts of smoothing agent, 1.4 to 1.7 parts of smoothing assistant, 1.6 to 1.9 parts of defoamer and 60 to 65 parts of deionized water. The high-tenacity and shock-proof bactericidal diatom ooze coating disclosed by the invention has good bactericidal performance, is environmental friendly and durable, and is good indoor coating.
Description
Technical field
The present invention relates to technical field of coatings, particularly relate to a kind of high-tenacity and shock-resistance sterilization diatom ooze coating.
Background technology
Diatom ooze has functions such as regulating humidity, releasing negative oxygen ion, fire protection flame retarding, deodorization and sterilization, it is a kind of excellent indoor paint, China is world's diatom ooze content and exports maximum country, the moiety of diatom ooze is a kind of rule, is fitly arranged in circle or the micrometer level porous material of aciculiform, porosity is up to 90%, the minute aperture number ratio charcoal of its unit surface also will have more thousands of times, has extremely strong physical adsorption performance and ion-exchange performance.
Negative ion powder, be the principle that human use's nature produces negative ion, a kind of composite minerals of synthetic or proportioning, moiety is generally tourmaline powder and lanthanon/rare earth element, and its rare earth elements accounts for more than 60%.The negative ion that negative ion powder discharges have anti-ageing, strengthen the effects such as human body resistibility, be a kind of health-care material.
Diatom ooze is when making coating, and often toughness is not enough, can not big area brushing, and meanwhile, owing to often adding auxiliary material in process of manufacture to expand volume, reduce costs, this also brings negative impact to the shock resistance of diatom ooze coating.Therefore, develop a kind of high tenacity, excellent shock resistance, and the diatom ooze coating of auxiliary other performances of interpolation is very necessary.
Summary of the invention
Based on the technical problem that background technology exists, the present invention proposes a kind of high-tenacity and shock-resistance sterilization diatom ooze coating, bactericidal property is good, and environmental and durable, is a kind of excellent indoor paint.
A kind of high-tenacity and shock-resistance sterilization diatom ooze coating that the present invention proposes, its raw material comprises by weight: natural diatomaceous earth 40-50 part, negative ion powder 14-16 part, poly(lactic acid) chelated silver iron sterilant 8-12 part, light calcium carbonate 12-15 part, wilkinite 9-12 part, talcum powder 5-8 part, dispersion agent 1.8-2.2 part, film coalescence aid 1.2-1.5 part, emulsifying agent 1.5-1.8 part, pigment 3-6 part, wetting agent 1.6-1.9 part, flow agent 1.1-1.5 part, auxiliary rheological agents 1.4-1.7 part, defoamer 1.6-1.9 part, deionized water 60-65 part.
Preferably, natural diatomaceous earth, negative ion powder, poly(lactic acid) chelated silver iron sterilant, light calcium carbonate, wilkinite, talcous weight ratio are 43-46:14.5-15:9-10:13-14:10-11:6-7.
Preferably, its raw material comprises by weight: natural diatomaceous earth 43-46 part, negative ion powder 14.5-15 part, poly(lactic acid) chelated silver iron sterilant 9-10 part, light calcium carbonate 13-14 part, wilkinite 10-11 part, talcum powder 6-7 part, dispersion agent 1.9-2.1 part, film coalescence aid 1.3-1.4 part, emulsifying agent 1.6-1.7 part, pigment 4-5 part, wetting agent 1.7-1.8 part, flow agent 1.2-1.3 part, auxiliary rheological agents 1.5-1.6 part, defoamer 1.7-1.8 part, deionized water 62-63 part.
Preferably, dispersion agent is the one in sodium oleate, sodium sulfovinate, sodium sulfonate.
Preferably, the preparation method of poly(lactic acid) chelated silver iron sterilant is: lactic acid after dehydration is carried out increasing temperature and pressure reaction, then drops into tin chloride, toluenesulphonic acids monohydrate and phosphorous acid, heats up, step-down, heat-insulation pressure keeping, and cooling is pulverized and obtained prefabricated poly(lactic acid); Prefabricated poly(lactic acid) is dropped in the methanesulfonic aqueous solution, take out after stirring and drain, drop in dimethylbenzene, continue to drop into deionized water, γ-r-chloropropyl trimethoxyl silane, silver nitrate aqueous solution and polyethylenediamine, leave standstill after stirring, then filter, dry, pulverize, sieve and obtain poly(lactic acid) chelated silver iron sterilant.
Preferably, the preparation method of poly(lactic acid) chelated silver iron sterilant is: lactic acid after dehydration is carried out increasing temperature and pressure reaction, and reaction pressure is 1.5-1.8 × 10
4pa, temperature of reaction is 150-155 DEG C, and the reaction times is 1.5-2h, then drops into tin chloride, toluenesulphonic acids monohydrate and phosphorous acid, is warming up to 190-195 DEG C, is depressurized to 400-500Pa, and after heat-insulation pressure keeping 6-8h, cooling, pulverizes and obtain prefabricated poly(lactic acid); Prefabricated poly(lactic acid) being dropped into massfraction is take out after stirring in the methanesulfonic aqueous solution of 35-38wt% to drain, drop in dimethylbenzene, continuation input deionized water, γ-r-chloropropyl trimethoxyl silane, massfraction are silver nitrate aqueous solution and the polyethylenediamine of 25-28wt%, 40-50min is left standstill after stirring, then filter, dry, pulverize, sieve and obtain poly(lactic acid) chelated silver iron sterilant.
Preferably, the preparation method of poly(lactic acid) chelated silver iron sterilant is: by weight lactic acid after the dehydration of 130-150 part is carried out increasing temperature and pressure reaction, reaction pressure is 1.5-1.8 × 10
4pa, temperature of reaction is 150-155 DEG C, reaction times is 1.5-2h, then 0.05-0.08 part tin chloride, 0.01-0.04 part toluenesulphonic acids monohydrate and 0.03-0.06 part phosphorous acid is dropped into, be warming up to 190-195 DEG C, be depressurized to 400-500Pa, after heat-insulation pressure keeping 6-8h, cooling, pulverizes and obtains prefabricated poly(lactic acid); Prefabricated for 28-32 part poly(lactic acid) being dropped into 50-55 part massfraction is take out after stirring in the methanesulfonic aqueous solution of 35-38wt% to drain, drop in 110-120 part dimethylbenzene, continuation input 15-18 part deionized water, 4-7 part γ-r-chloropropyl trimethoxyl silane, 10-13 part massfraction are silver nitrate aqueous solution and 12-15 part polyethylenediamine of 25-28wt%, 40-50min is left standstill after stirring, then filter, dry, pulverize, sieve and obtain poly(lactic acid) chelated silver iron sterilant.
The present invention adds negative ion powder in preparation process, can discharge the negative ion of great advantage to human body, can eliminate corticocerebral fatigue, improving water flood, enhancing body immunity, resistance against diseases; The interpolation of sepiolite and vermiculite power, one is expand volume of the present invention, reduce cost, and two is diatomite and negative ion part are merged better form large-area coating; The interpolation of poly(lactic acid) chelated silver iron sterilant then can coordinate with negative ion powder, substantially increase bactericidal property of the present invention, in its preparation process, after dehydration, lactic acid can form oligopolymer, under specific temperature and pressure condition, cyclisation becomes lactide dimer, then the tin chloride dropped into, toluenesulphonic acids monohydrate can coordinate and under specific temperature and pressure condition, be polymerized as catalyzer initiation lactide dimer the poly(lactic acid) that formation molecular weight is large, physical strength good, wetting ability is stronger, substantially increase toughness of the present invention and shock resistance; And phosphorous acid significantly can improve the stability of poly(lactic acid) as the interpolation of stablizer, the methanesulfonic aqueous solution simultaneously can and next added coordinates, and impel poly(lactic acid) at grafting hydroxyl, thus improve the wetting ability of poly(lactic acid) chelated silver iron sterilant further; Take dimethylbenzene as solvent, with γ-r-chloropropyl trimethoxyl silane for medium, polyethylenediamine can be impelled stably to be grafted in prefabricated poly(lactic acid), and polyethylenediamine is a kind of water-soluble polyamine, the a large amount of amido atom N contained, can the silver ions that contain in the silver nitrate solution that adds of active adsorption, thus formed be evenly distributed, firm structure, greatly improve the sterilization effect of poly(lactic acid) chelated silver iron sterilant; Simultaneously, because polyethylenediamine is cross-linked to form mutually stable tridimensional network, overcome the shortcoming that poly(lactic acid) intensity is low, shock resistance is poor, improve the thermotolerance of poly(lactic acid), substantially increase intensity of the present invention, shock resistance, expand range of application of the present invention; One in use sodium oleate, sodium sulfovinate, sodium sulfonate is as dispersion agent, and the material that the present invention can be made to add disperses equably, prevents caking
Embodiment
Below, by specific embodiment, technical scheme of the present invention is described in detail.
Embodiment 1
A kind of high-tenacity and shock-resistance sterilization diatom ooze coating that the present invention proposes, its raw material comprises by weight: natural diatomaceous earth 50 parts, negative ion powder 14 parts, 12 parts, poly(lactic acid) chelated silver iron sterilant, light calcium carbonate 12 parts, wilkinite 12 parts, talcum powder 5 parts, sodium oleate 2.2 parts, film coalescence aid 1.2 parts, emulsifying agent 1.8 parts, pigment 3 parts, wetting agent 1.9 parts, flow agent 1.1 parts, auxiliary rheological agents 1.7 parts, defoamer 1.6 parts, deionized water 65 parts;
The preparation method of poly(lactic acid) chelated silver iron sterilant is: by weight lactic acid after 130 parts of dehydrations is carried out increasing temperature and pressure reaction, reaction pressure is 1.8 × 10
4pa, temperature of reaction is 150 DEG C, and the reaction times is 2h, then drops into 0.05 part of tin chloride, 0.04 part of toluenesulphonic acids monohydrate and 0.03 part of phosphorous acid, is warming up to 195 DEG C, is depressurized to 400Pa, and after heat-insulation pressure keeping 8h, cooling, pulverizes and obtain prefabricated poly(lactic acid); 28 parts of prefabricated poly(lactic acid) being dropped into 55 parts of massfractions is take out after stirring in the methanesulfonic aqueous solution of 35wt% to drain, drop in 120 parts of dimethylbenzene, continuation input 15 parts of deionized waters, 7 parts of γ-r-chloropropyl trimethoxyl silanes, 10 parts of massfractions are silver nitrate aqueous solution and 12 parts of polyethylenediamine of 28wt%, 50min is left standstill after stirring, then filter, dry, pulverize, sieve and obtain poly(lactic acid) chelated silver iron sterilant.
Embodiment 2
A kind of high-tenacity and shock-resistance sterilization diatom ooze coating that the present invention proposes, its raw material comprises by weight: natural diatomaceous earth 40, negative ion powder 16 parts, 8 parts, poly(lactic acid) chelated silver iron sterilant, light calcium carbonate 15 parts, wilkinite 9 parts, talcum powder 8 parts, sodium sulfovinate 1.8 parts, film coalescence aid 1.5 parts, emulsifying agent 1.5 parts, pigment 6 parts, wetting agent 1.6 parts, flow agent 1.5 parts, auxiliary rheological agents 1.4 parts, defoamer 1.9 parts, deionized water 60 parts;
The preparation method of poly(lactic acid) chelated silver iron sterilant is: by weight lactic acid after 150 parts of dehydrations is carried out increasing temperature and pressure reaction, reaction pressure is 1.5 × 10
4pa, temperature of reaction is 155 DEG C, and the reaction times is 1.5h, then drops into 0.08 part of tin chloride, 0.01 part of toluenesulphonic acids monohydrate and 0.06 part of phosphorous acid, is warming up to 190 DEG C, is depressurized to 500Pa, and after heat-insulation pressure keeping 6h, cooling, pulverizes and obtain prefabricated poly(lactic acid); 32 parts of prefabricated poly(lactic acid) being dropped into 50 parts of massfractions is take out after stirring in the methanesulfonic aqueous solution of 38wt% to drain, drop in 110 parts of dimethylbenzene, continuation input 18 parts of deionized waters, 4 parts of γ-r-chloropropyl trimethoxyl silanes, 13 parts of massfractions are silver nitrate aqueous solution and 15 parts of polyethylenediamine of 25wt%, 40min is left standstill after stirring, then filter, dry, pulverize, sieve and obtain poly(lactic acid) chelated silver iron sterilant.
Embodiment 3
A kind of high-tenacity and shock-resistance sterilization diatom ooze coating that the present invention proposes, its raw material comprises by weight: natural diatomaceous earth 46 parts, negative ion powder 14.5 parts, 10 parts, poly(lactic acid) chelated silver iron sterilant, light calcium carbonate 13 parts, wilkinite 11 parts, talcum powder 6 parts, sodium sulfonate 2.1 parts, film coalescence aid 1.3 parts, emulsifying agent 1.7 parts, pigment 4 parts, wetting agent 1.8 parts, flow agent 1.2 parts, auxiliary rheological agents 1.6 parts, defoamer 1.7 parts, deionized water 63 parts;
The preparation method of poly(lactic acid) chelated silver iron sterilant is: by weight lactic acid after 140 parts of dehydrations is carried out increasing temperature and pressure reaction, reaction pressure is 1.7 × 10
4pa, temperature of reaction is 152 DEG C, and the reaction times is 1.8h, then drops into 0.06 part of tin chloride, 0.03 part of toluenesulphonic acids monohydrate and 0.04 part of phosphorous acid, is warming up to 193 DEG C, is depressurized to 440Pa, and after heat-insulation pressure keeping 7.5h, cooling, pulverizes and obtain prefabricated poly(lactic acid); 29 parts of prefabricated poly(lactic acid) being dropped into 53 parts of massfractions is take out after stirring in the methanesulfonic aqueous solution of 36wt% to drain, drop in 118 parts of dimethylbenzene, continuation input 16 parts of deionized waters, 6 parts of γ-r-chloropropyl trimethoxyl silanes, 11 parts of massfractions are silver nitrate aqueous solution and 13 parts of polyethylenediamine of 27wt%, 48min is left standstill after stirring, then filter, dry, pulverize, sieve and obtain poly(lactic acid) chelated silver iron sterilant.
Embodiment 4
A kind of high-tenacity and shock-resistance sterilization diatom ooze coating that the present invention proposes, its raw material comprises by weight: natural diatomaceous earth 43-46 part, negative ion powder 14.5-15 part, poly(lactic acid) chelated silver iron sterilant 9-10 part, light calcium carbonate 13-14 part, wilkinite 10-11 part, talcum powder 6-7 part, sodium sulfonate 1.9-2.1 part, film coalescence aid 1.3-1.4 part, emulsifying agent 1.6-1.7 part, pigment 4-5 part, wetting agent 1.7-1.8 part, flow agent 1.2-1.3 part, auxiliary rheological agents 1.5-1.6 part, defoamer 1.7-1.8 part, deionized water 62-63 part;
The preparation method of poly(lactic acid) chelated silver iron sterilant is: by weight lactic acid after 145 parts of dehydrations is carried out increasing temperature and pressure reaction, reaction pressure is 1.6 × 10
4pa, temperature of reaction is 153 DEG C, and the reaction times is 1.6h, then drops into 0.07 part of tin chloride, 0.02 part of toluenesulphonic acids monohydrate and 0.05 part of phosphorous acid, is warming up to 194 DEG C, is depressurized to 460Pa, and after heat-insulation pressure keeping 6.5h, cooling, pulverizes and obtain prefabricated poly(lactic acid); 30 parts of prefabricated poly(lactic acid) being dropped into 54 parts of massfractions is take out after stirring in the methanesulfonic aqueous solution of 37wt% to drain, drop in 115 parts of dimethylbenzene, continuation input 17 parts of deionized waters, 5 parts of γ-r-chloropropyl trimethoxyl silanes, 12 parts of massfractions are silver nitrate aqueous solution and 14 parts of polyethylenediamine of 26wt%, 45min is left standstill after stirring, then filter, dry, pulverize, sieve and obtain poly(lactic acid) chelated silver iron sterilant.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (7)
1. a high-tenacity and shock-resistance sterilization diatom ooze coating, it is characterized in that, its raw material comprises by weight: natural diatomaceous earth 40-50 part, negative ion powder 14-16 part, poly(lactic acid) chelated silver iron sterilant 8-12 part, light calcium carbonate 12-15 part, wilkinite 9-12 part, talcum powder 5-8 part, dispersion agent 1.8-2.2 part, film coalescence aid 1.2-1.5 part, emulsifying agent 1.5-1.8 part, pigment 3-6 part, wetting agent 1.6-1.9 part, flow agent 1.1-1.5 part, auxiliary rheological agents 1.4-1.7 part, defoamer 1.6-1.9 part, deionized water 60-65 part.
2. high-tenacity and shock-resistance sterilization diatom ooze coating according to claim 1, it is characterized in that, natural diatomaceous earth, negative ion powder, poly(lactic acid) chelated silver iron sterilant, light calcium carbonate, wilkinite, talcous weight ratio are 43-46:14.5-15:9-10:13-14:10-11:6-7.
3. high-tenacity and shock-resistance sterilization diatom ooze coating according to claim 1 or 2, it is characterized in that, its raw material comprises by weight: natural diatomaceous earth 43-46 part, negative ion powder 14.5-15 part, poly(lactic acid) chelated silver iron sterilant 9-10 part, light calcium carbonate 13-14 part, wilkinite 10-11 part, talcum powder 6-7 part, dispersion agent 1.9-2.1 part, film coalescence aid 1.3-1.4 part, emulsifying agent 1.6-1.7 part, pigment 4-5 part, wetting agent 1.7-1.8 part, flow agent 1.2-1.3 part, auxiliary rheological agents 1.5-1.6 part, defoamer 1.7-1.8 part, deionized water 62-63 part.
4. high-tenacity and shock-resistance sterilization diatom ooze coating according to any one of claim 1-3, is characterized in that, dispersion agent is the one in sodium oleate, sodium sulfovinate, sodium sulfonate.
5. high-tenacity and shock-resistance sterilization diatom ooze coating according to any one of claim 1-4, it is characterized in that, the preparation method of poly(lactic acid) chelated silver iron sterilant is: lactic acid after dehydration is carried out increasing temperature and pressure reaction, then tin chloride, toluenesulphonic acids monohydrate and phosphorous acid is dropped into, heat up, step-down, heat-insulation pressure keeping, cooling, pulverizes and obtains prefabricated poly(lactic acid); Prefabricated poly(lactic acid) is dropped in the methanesulfonic aqueous solution, take out after stirring and drain, drop in dimethylbenzene, continue to drop into deionized water, γ-r-chloropropyl trimethoxyl silane, silver nitrate aqueous solution and polyethylenediamine, leave standstill after stirring, then filter, dry, pulverize, sieve and obtain poly(lactic acid) chelated silver iron sterilant.
6. high-tenacity and shock-resistance sterilization diatom ooze coating according to any one of claim 1-5, is characterized in that, the preparation method of poly(lactic acid) chelated silver iron sterilant is: lactic acid after dehydration is carried out increasing temperature and pressure reaction, and reaction pressure is 1.5-1.8 × 10
4pa, temperature of reaction is 150-155 DEG C, and the reaction times is 1.5-2h, then drops into tin chloride, toluenesulphonic acids monohydrate and phosphorous acid, is warming up to 190-195 DEG C, is depressurized to 400-500Pa, and after heat-insulation pressure keeping 6-8h, cooling, pulverizes and obtain prefabricated poly(lactic acid); Prefabricated poly(lactic acid) being dropped into massfraction is take out after stirring in the methanesulfonic aqueous solution of 35-38wt% to drain, drop in dimethylbenzene, continuation input deionized water, γ-r-chloropropyl trimethoxyl silane, massfraction are silver nitrate aqueous solution and the polyethylenediamine of 25-28wt%, 40-50min is left standstill after stirring, then filter, dry, pulverize, sieve and obtain poly(lactic acid) chelated silver iron sterilant.
7. high-tenacity and shock-resistance sterilization diatom ooze coating according to any one of claim 1-6, it is characterized in that, the preparation method of poly(lactic acid) chelated silver iron sterilant is: by weight lactic acid after the dehydration of 130-150 part is carried out increasing temperature and pressure reaction, reaction pressure is 1.5-1.8 × 10
4pa, temperature of reaction is 150-155 DEG C, reaction times is 1.5-2h, then 0.05-0.08 part tin chloride, 0.01-0.04 part toluenesulphonic acids monohydrate and 0.03-0.06 part phosphorous acid is dropped into, be warming up to 190-195 DEG C, be depressurized to 400-500Pa, after heat-insulation pressure keeping 6-8h, cooling, pulverizes and obtains prefabricated poly(lactic acid); Prefabricated for 28-32 part poly(lactic acid) being dropped into 50-55 part massfraction is take out after stirring in the methanesulfonic aqueous solution of 35-38wt% to drain, drop in 110-120 part dimethylbenzene, continuation input 15-18 part deionized water, 4-7 part γ-r-chloropropyl trimethoxyl silane, 10-13 part massfraction are silver nitrate aqueous solution and 12-15 part polyethylenediamine of 25-28wt%, 40-50min is left standstill after stirring, then filter, dry, pulverize, sieve and obtain poly(lactic acid) chelated silver iron sterilant.
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| CN107419867A (en) * | 2017-07-21 | 2017-12-01 | 泰山石膏有限公司 | A kind of diatom gypsum acoustic board |
| CN114262535A (en) * | 2022-01-14 | 2022-04-01 | 美巢集团股份公司 | Green environment-friendly lasting mildew-proof weakly-alkaline putty and preparation method thereof |
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Application publication date: 20151216 |