Mold-proof anti-microbial tile joint mixture and preparation method thereof
An anti-mildew antibacterial agent, anti-mildew antibacterial technology, applied in the field of tile grout, can solve the problems of anti-mildew, unsatisfactory environmental protection effect, mildew breeding bacteria, trouble in life, etc. The effect of bonding force, reducing cracks, and improving the strength of caulking
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[0020] [Example 1]
[0021] Preparation of nano-magnesium oxide modified chitosan antibacterial agent.
[0022] 1) Weigh out MgCl 2 Dissolve in absolute ethanol, add PEG400 as a dispersant. After the mixing is uniform, the temperature is raised to 50-60°C, and a certain amount of ammonia ethanol solution with a volume ratio of (1:1) is slowly added dropwise under continuous magnetic stirring to form a white precipitate. After dripping, continue to keep the temperature for 1.5 hours, take it out, and let it stand for aging at room temperature. The precipitate was separated by filtration, and the filter cake was washed with water and ethanol several times, and then dried in vacuum at 60° C. to obtain a white precursor. Finally, calcined at 500°C for 1.5 hours in an air atmosphere to obtain nanometer magnesium oxide powder.
[0023] 2) Add nano-magnesium oxide powder to absolute ethanol and stir evenly, ultrasonically disperse, ultrasonic frequency is 40KHz, ultrasonic dispersion tim...
Example Embodiment
[0026] [Example 2]
[0027] 1. Formula preparation (parts by weight)
[0028] 25 parts of vinyl acetate-ethylene copolymer emulsion;
[0029] 0.8 parts of potassium methyl siliconate;
[0030] 60 parts of 200 mesh ~ 400 mesh quartz powder;
[0031] 0.3 parts of carbendazim;
[0032] 0.3 parts of nano-magnesium oxide modified chitosan antibacterial agent prepared in Example 1;
[0033] 0.3 parts of hydroxypropyl methylcellulose;
[0034] 0.2 parts of organosilicon water repellent;
[0035] 1.5 parts of glycerol;
[0036] 1.0 part of film forming aid
[0037] 2. Preparation:
[0038] According to the above formula, mix preservatives, anti-mildew and antibacterial agents, silicone water repellents, film-forming aids, and half of the elastic emulsion, then add them to the dispersing machine for dispersion, and then add 200 mesh to 400 mesh quartz powder, nail polish After the addition is complete, increase the speed to 1000 rpm and disperse for 20 minutes; reduce the speed to 500 rpm, slowly add ...
Example Embodiment
[0039] [Example 3]
[0040] 1. Formula preparation (parts by weight)
[0041] 20 parts of vinyl acetate-ethylene copolymer emulsion;
[0042] 1.0 part of potassium methyl siliconate;
[0043] 55 parts of 200 mesh ~ 400 mesh quartz powder;
[0044] 0.2 parts of carbendazim;
[0045] 0.3 parts of nano-magnesium oxide modified chitosan antibacterial agent prepared in Example 1;
[0046] 0.2 parts of hydroxypropyl methylcellulose;
[0047] 0.1 part of organosilicon water repellent;
[0048] 2.0 parts of ethylene glycol;
[0049] 1.5 parts of film forming aid
[0050] 2. Preparation:
[0051] According to the above formula, mix preservatives, anti-mildew and antibacterial agents, silicone water repellents, film-forming aids, and half of the elastic emulsion, then add them to the disperser for dispersion, and then add 200 mesh to 400 mesh quartz powder, nail polish After the addition is complete, increase the speed to 1000 rpm and disperse for 20 minutes; reduce the speed to 500 rpm, slowly add the...
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