Long-acting and antibacterial chitosan essence microcapsule preparation method
A technology of essence microcapsules and antibacterial shells, applied in the field of materials, can solve the problems of poor affinity of various fabric fibers, single aromatherapy function, and failure to achieve aromatherapy effects, etc., to achieve good fragrance effects, long fragrance retention time, and high essential oil content Effect
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Embodiment 1
[0020] Preparation of PEG system chitosan quaternary ammonium salt essence microcapsules:
[0021] Prepare materials and experimental equipment, select essence, chitosan quaternary ammonium salt, polyethylene glycol 400 (PEG), and glutaraldehyde as materials, carry out experimental operations on a sterile operating table, and use electronic analytical balances to weigh raw materials. Weigh 6.7g of chitosan quaternary ammonium salt (150,000 molecular weight) and add water to dissolve it to 67g in a 250ml flask; add 0.05g of PEG (polyethylene glycol 400) and 20g of aldehydic rose type essence, and then heat it at a constant temperature using a heat collector Stir with a magnetic stirrer for 25-35min for emulsification, and the mechanical stirring speed is 1000rpm / min. After emulsification, use an ice bath to lower the temperature to 5°C (below 10°C), and adjust the mechanical stirring to 550rpm / min. Weigh 0.3g of the crosslinking agent glutaraldehyde and add deionized water to 1...
Embodiment 2
[0023] Preparation of chitosan quaternary ammonium salt essence microcapsules with triclocarban PEG system:
[0024] Prepare materials and experimental equipment, select essence, chitosan quaternary ammonium salt, polyethylene glycol 400 (PEG), and glutaraldehyde as materials, carry out experimental operations on a sterile operating table, and use electronic analytical balances to weigh raw materials. Weigh 6.7g of chitosan quaternary ammonium salt (150,000 molecular weight) and add water to dissolve it to 67g in a 250ml flask; add 0.05g of PEG (polyethylene glycol 400) and 20g of aldehydic rose type essence, and then heat it at a constant temperature using a heat collector Stir with a magnetic stirrer for 25-35min for emulsification, and the mechanical stirring speed is 1000rpm / min. After emulsification, use an ice bath to lower the temperature to 5°C (below 10°C), and adjust the mechanical stirring to 550rpm / min. Weigh 0.3g of the crosslinking agent glutaraldehyde and add de...
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