Microencapsulation purpose and definition

Definition of Microencapsulation Microencapsulation is a technique for packaging solid, liquid and gaseous materials in small capsules by coating the material with a protective substrate or wall material (Hogan et al., 2001; Cerdeira et al. , 2007; Champagne and Fustier, 2007). Madene et al. ), 2005). In other words, this is the process by which small particles or droplets are surrounded by a coating or embedded in a homogeneous or heterogeneous matrix (Gharsallaoui et al., 2007). The material surrounded by the coating material in the capsule is called core, internal phase or filler.

Microencapsulation is the process of encapsulating the core material with micron-sized particles. Microcapsules are droplets protected by thin, deformable membranes with elastic properties whose elastic properties can vary in size from a few microns to a few millimeters. When the capsule is placed in a suspended state, the mesh membrane controls the deformation of the capsule and controls the exchange between the internal fluid and the external fluid. Microencapsulation, if desired, is an important means for protecting the liquid's internal medium by subsequent adaptation of the membrane to mechanical properties and porosity. This is a well-known technique, but in fact, in 1931 the first microencapsulation process was announced. Due to recent technical development, microencapsulation has become a very important part of scientific research in many industrial applications.

In the field of textile processing, particularly in the field of nonwoven fabrics, micropackage PCM is on sale. Liquid and solid microencapsulation is an innovative micropackaging technology that opens new marketing opportunities to create smart thermal conditioning textiles in the high performance apparel market. After conducting the centrifugal shear test to predict its mechanical durability and long term performance, no oily phase leak was observed and no significant microcapsule structural damage was observed. Therefore, the manufactured thermal capsule is evaluated as highly suitable for many textile applications. Applications range from a very complex life support system to convenience and pleasure, life-saving military uniforms to antifouling and amusement. The main focus of smart and interactive textiles are military, health care, and high performance sportswear.

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