Melamine glazing powder with antibacterial property
An overcoating powder, organic antibacterial technology, applied in the field of melamine overcoating resin, can solve the problems of breeding bacteria, poor antibacterial performance, human health threat, etc., to achieve the effect of strengthening antibacterial performance
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Embodiment 1
[0025] Prepare antimicrobials:
[0026] Step S1: Add 0.1 mol of 3,5-dihydroxybenzoic acid and 200 mL of deionized water into the flask, then add 0.12 mol of thionyl chloride and 0.05 mL of DMF, and react at 75°C for 3 hours to obtain intermediate 1;
[0027] Step S2: Add 0.011 mol of intermediate 1 and 30 mL of tetrahydrofuran into the flask, then add 0.01 mol of pyridine, then add 0.01 mol of N,N'-dimethyl-1,4-butanediamine into the flask, and react at room temperature for 3 hours to prepare get intermediate 2;
[0028] Step S3: Add 0.1 mol of intermediate 2 into a flask containing 200 mL of tetrahydrofuran, add 0.2 mol of 1-chloropropane after stirring, feed nitrogen, and use a dropping funnel to add 26.7 g of a 30% aqueous sodium hydroxide solution into the flask, Heated and refluxed for 4 hours to obtain an organic antibacterial component;
[0029] Step S4: Stir and disperse 10 g of Na-montmorillonite in 200 mL of distilled water, add 100 mL of a 10% zinc nitrate aqueous...
Embodiment 2
[0032] Prepare antimicrobials:
[0033] Step S1: Add 0.1 mol of 3,5-dihydroxybenzoic acid and 200 mL of deionized water into the flask, then add 0.12 mol of thionyl chloride and 0.05 mL of DMF, and react at 75°C for 3.5 hours to obtain intermediate 1;
[0034] Step S2: Add 0.011 mol of intermediate 1 and 30 mL of tetrahydrofuran into the flask, then add 0.01 mol of pyridine, then add 0.01 mol of N,N'-dimethyl-1,4-butanediamine into the flask, and react at room temperature for 3 hours to prepare get intermediate 2;
[0035] Step S3: Add 0.1 mol of intermediate 2 into a flask containing 200 mL of tetrahydrofuran, add 0.2 mol of 1-chloropropane after stirring, feed nitrogen, and use a dropping funnel to add 26.7 g of a 30% aqueous sodium hydroxide solution into the flask, Heated and refluxed for 4 hours to obtain an organic antibacterial component;
[0036] Step S4: Stir and disperse 10 g of Na-montmorillonite in 200 mL of distilled water, add 100 mL of a 10% zinc nitrate aqueo...
Embodiment 3
[0039] Prepare antimicrobials:
[0040] Step S1: Add 0.1 mol of 3,5-dihydroxybenzoic acid and 200 mL of deionized water into the flask, then add 0.12 mol of thionyl chloride and 0.05 mL of DMF, and react at 75°C for 4 hours to obtain intermediate 1;
[0041] Step S2: Add 0.011 mol of intermediate 1 and 30 mL of tetrahydrofuran into the flask, then add 0.01 mol of pyridine, then add 0.01 mol of N,N'-dimethyl-1,4-butanediamine into the flask, and react at room temperature for 3 hours to prepare get intermediate 2;
[0042] Step S3: Add 0.1 mol of intermediate 2 into a flask containing 200 mL of tetrahydrofuran, add 0.2 mol of 1-chloropropane after stirring, feed nitrogen, and use a dropping funnel to add 26.7 g of a 30% aqueous sodium hydroxide solution into the flask, Heated and refluxed for 4 hours to obtain an organic antibacterial component;
[0043]Step S4: Stir and disperse 10 g of Na-montmorillonite in 200 mL of distilled water, add 100 mL of a 10% zinc nitrate aqueous ...
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