Improvement of a microencapsulation with aqueous core by factorial design
- 1 January 1992
- journal article
- research article
- Published by Taylor & Francis in Journal of Microencapsulation
- Vol. 9 (4) , 465-468
- https://doi.org/10.3109/02652049209040485
Abstract
Preparation of microcapsules with aqueous core and polyamide walls is influenced by several factors. We improved the stability of walls and size of capsules by simultaneous variation of four factors: total ratio of polymer, ratio of amines to acid chlorides, concentration of surfactant and speed of stirring. Use of factorial design minimizes the number of experiments and permits us to know the influence of these factors and of their interactions. By increasing the ratio of amines to acid chlorides and with a low concentration of total polymer, we obtained more stable capsules. Surfactant had a negative effect on the hardness of the polymer.Keywords
This publication has 2 references indexed in Scilit:
- Studies on zinc sulphate microcapsules (2): Application of factorial designJournal of Microencapsulation, 1988
- Application of factorial design, in the examination of Tofizopam microcapsulesJournal of Microencapsulation, 1984