Amino resin microcapsules. II. Preparation and morphology

Abstract

Abstract Amino resin microcapsules are prepared from partial etherified melamine‐formaldehyde resins without other additives. As model substance for the core material mainly methylparathion was used. The influences of different parameters on the encapsulation process, the capsule morphology and some capsule properties were investigated. It is shown that by this method capsules with average diameters between 5 and 50 μm and a wall thickness between 30 and 300 nm can be obtained. The encapsulation of liquids as well as solids is possible. First ideas to the mechanisms of the capsule formation are discussed.