Preparing microcapsules having various pore sizes on capsule-membrane by phase separation method

摘要

Many species of the microcapsules are widely used in the drug, agricultural chemical, food, printing, dyestuff, fertilizer and pharmaceutical industries. To apply a microcapsule for above mentioned purposes, it is preferable to control the characteristics of the capsule membrane such as its thickness, strength, permutability, and morphology. In order to control the morphology and to prepare the microcapsules having desired physical properties, it is necessary to know the membrane forming mechanism. The objective of this study is controlling the morphology and clarification of the membrane formation mechanism of the crosslinked melamine-formaldehyde resin microcapsules by phase separation method.