24-06-2015 дата публикации
Номер: CN104721806A
Принадлежит:
The invention discloses a PMX-53 and gelatin composite particle and a preparation method thereof, and belongs to the technical fields of gelatin composite particles and preparation thereof. The method comprises the following steps: firstly, adding gelatin to deionized water, heating and dissolving to prepare a gelatin water solution; adding acetone to the gelatin water solution to obtain precipitated gelatin; dissolving with the deionized water again to prepare the gelatin water solution; adjusting the pH value of the solution to be 7.0-8.0; adding PMX-53 to the gelatin water solution, dropwise adding the acetone to the formed system under a magnetic stirring condition, and emulsifying the system to form gelatin particles; adding a glutaraldehyde water solution, further stirring in ice bath, and solidifying the gelatin particles; and centrifuging the formed gelatin particles, cleaning and precipitating with acetone for 3-5 times, and drying in vacuum to obtain the PMX-53 and gelatin composite ...
Подробнее