Sustained release /self-cleaning zein-based hybrid microcapsule leather finishing material
Qunna Xu, Jiaojiao Li, Yang Ding, Jianzhong Ma, Zhongxue Bai, Yuxi Yang
Abstract
In this study, zein, Pluronic F127, artemisia argyis essence, and butyl titanate are used to craft zein-based hybrid microcapsule by interfacial condensation and anti-solvent precipitation approach. Morphology and structure of the hybrid microcapsule were characterized by SEM, UDFM, FTIR, XRD and XPS, separately. Sustained release behavior and self-cleaning performance of the hybrid microcapsule were also observed. The results indicated that the average size of zein-based hybrid microcapsule was approximately 6 μm with stable structure. It is worth noting that, this double-shelled microcapsule possessed sustained release behaviors, only 9% of AAE was released after 9 h. Significantly, the TiO2 in the outer shell endows the composite coating with superior self-cleaning performance. The as-prepared hybrid microcapsule finishing material is a good candidate for bio-based functional coatings applied in various fields including leather, paper, painting, cosmetics and so on.