Departments of Applied Science and Technology, Politecnico di Torino, 10129 Torino, Italy.
Department of Mechanical, Energy and Material Engineering, University of Lille Nord de France, F-5900 Lille, France.
Int J Mol Sci. 2018 Aug 25;19(9):2521. doi: 10.3390/ijms19092521.
Chitosan (CH)⁻carboxymethyl cellulose sodium salt (NaCMC) microcapsules containing paraffin oil were synthesized by complex formation, and crosslinked with glutaraldehyde (GTA). The electrostatic deposition of NaCMC onto the CH-coated paraffin oil emulsion droplets was demonstrated by zeta potential and optical microscopy. The optimal process conditions were identified in terms of pH of the aqueous solution (5.5) and CH/NaCMC mass ratio (1:1). Encapsulation of paraffin oil and microcapsule morphology were analyzed by ATR-FTIR and SEM, respectively. The effect of GTA crosslinking on paraffin oil latent heat was investigated by DSC and combined with the values of encapsulation efficiency and core content, supporting the compact shell formation.
壳聚糖（CH）-羧甲基纤维素钠（NaCMC）微胶囊包埋石蜡油，通过复凝聚作用合成，并使用戊二醛（GTA）交联。通过动电位和光学显微镜证明了 NaCMC 静电沉积在 CH 涂覆的石蜡油乳液液滴上。根据水相溶液的 pH 值（5.5）和 CH/NaCMC 质量比（1:1）确定了最佳工艺条件。通过 ATR-FTIR 和 SEM 分别分析了石蜡油的包封和微胶囊的形态。通过 DSC 研究了 GTA 交联对石蜡油潜热的影响，并结合包封效率和芯材含量的值，支持了致密壳的形成。
