Toothpaste composition with strong antibacterial function
A technology of composition and toothpaste, which is applied in the direction of antibacterial drugs, drug combinations, dentistry, etc., can solve the problems such as the weakening of exogenous biological enzymes, achieve strong cleaning and decontamination capabilities, and reduce the amount of bacteria
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Embodiment 1
[0053] In a 10-liter esterification reaction kettle with a condenser and a water separator, 5 kg of toluene and 4.48 kg of linear octylphenol polyoxyethylene ether (alkylphenol polyoxyethylene ether, R=8, n= 210), 0.52 kg of phthalic anhydride, stirred at a stirring speed of 150 rpm for 30 minutes to make linear octylphenol polyoxyethylene ether (alkylphenol polyoxyethylene ether, R=8, n=210) and phthalic anhydride are fully dissolved in toluene; then add 0.05 kg of p-toluenesulfonic acid, and stir at a stirring speed of 150 rpm for 10 minutes, p-toluenesulfonic acid catalyzes linear octylphenol polyoxygen Ethyl ether (alkylphenol polyoxyethylene ether, R=8, n=210) undergoes an esterification reaction with phthalic anhydride; heat up to 110°C, stir at a stirring speed of 150 rpm, and reflux for 4 hours; Finally remove the water in the water separator, utilize the vacuum pump to remove toluene, cool to room temperature, obtain the diester surfactant, and the diester surfactant ...
Embodiment 2
[0057] In a 10-liter esterification reaction kettle with a condenser and a water separator, 5 kg of toluene and 4.92 kg of isooctylphenol polyoxyethylene ether (alkylphenol polyoxyethylene ether, R=12, n=500 ), 0.08 kg of phthalic anhydride, and stirred at a stirring speed of 150 rpm for 30 minutes to make isooctylphenol polyoxyethylene ether (alkylphenol polyoxyethylene ether, R=12, n=500) and o- Fully dissolve phthalic anhydride in toluene; add 0.003 kg of phosphoric acid, and stir for 10 minutes at a stirring speed of 150 rpm, phosphoric acid catalyzes isooctylphenol polyoxyethyl ether (alkylphenol polyoxyethylene ether, R=12 , n=500) and phthalic anhydride to undergo esterification reaction; heat up to 110°C, stir at a stirring speed of 150 rpm, and reflux for 4 hours; finally remove the water in the water separator and use a vacuum pump to remove Toluene is cooled to room temperature to obtain the diester surfactant, and the diester surfactant structure is as follows:
...
Embodiment 3
[0061] In a 10-liter esterification reaction kettle with a condenser and a water separator, 5 kilograms of toluene and 4.85 kilograms of linear dodecylphenol polyoxyethylene ether (alkylphenol polyoxyethylene ether, R=18, n=360), 0.15 kg of phthalic anhydride, stirred at a stirring speed of 150 rpm for 30 minutes to make linear dodecylphenol polyoxyethylene ether (alkylphenol polyoxyethylene ether, R=18, n=360) and phthalic anhydride are fully dissolved in toluene; then add 0.02 kg of benzenesulfonic acid, and stir at a stirring speed of 150 rpm for 10 minutes, benzenesulfonic acid catalyzes the linear dodecylphenol polyoxygen Ethyl ether (alkylphenol polyoxyethylene ether, R=18, n=360) undergoes an esterification reaction with phthalic anhydride; heat up to 110°C, stir at a stirring speed of 150 rpm, and reflux for 4 hours; Finally remove the water in the water separator, utilize the vacuum pump to remove toluene, cool to room temperature, obtain the diester surfactant, and t...
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