Study on polyamide microcapsules containing oily liquids.
Oily liquids were microencapsulated within polyphthalamide membranes with dodecyl sulphonate sodium (DSS) as an emulsifier. The mean diameter and the distribution, as well as the zeta-potential, of the microcapsules were analysed. It was found that the mean diameter decreases with an increase in stirring speed and emulsifier concentration during the emulsification step. The addition of DSS to aqueous phase resulted in a decrease in zeta-potential of the microcapsules.
Yan
N
N
Department of Chemical Engineering, Suzhou University, PR China.
Zhang
M
M
Ni
P
P
D002214:Capsules / Q000737:chemistry*; D004339:Drug Compounding; D004586:Electrophoresis; D005079:Excipients; D008567:Membranes, Artificial; D009757:Nylons / Q000737:chemistry*; D009821:Oils / Q000737:chemistry; D010316:Particle Size; D012967:Sodium Dodecyl Sulfate; D013499:Surface Properties; D013501:Surface-Active Agents; D013696:Temperature
D002214:Capsules; D005079:Excipients; D008567:Membranes, Artificial; D009757:Nylons; D009821:Oils; D013501:Surface-Active Agents; D012967:Sodium Dodecyl Sulfate