Properties analysis of crosslinked chitosan microcapsules by multiple emulsification method

Abstract

Abstract Chemical based finishing agents often affect human body and environment. Therefore, in this study, eco-friendly microcapsules were manufactured to minimize the use of chemicals by using chitosan, a natural substance, as a wall material and basil oil as a core material. First, the optimum manufacturing conditions were established through the shape and size of the synthesized microcapsules. Second, the synthesis and thermal stability of the prepared microcapsules were evaluated. Finally, the applicability to functional fiber processing was reviewed by measuring the release characteristics of the microcapsules. Consequently, using 2 wt% chitosan, Triton X-100 as a emulsifier and stirring at 6000 rpm were considered to be efficient in terms of capsule formation. FT-IR spectrum and Gas Chromatograph showed that microcapsules were stably synthesized. And microcapsule containing basil oil was given heat resistance by encapsulation. Lastly, microcapsules can be confirmed to have sustained-release, due to basil oil in microcapsules has a small amount of release up to 10 h, and is continuously released until after 60 h to release slowly, As a result, the manufactured microcapsules finishing agent may be applied to finishing of textile product.

Keywords

• Encapsulation
• Chitosan
• Basil oil
• Microcapsule