Application of Aloe vera microcapsules in cotton nonwovens to obtain biofunctional textiles

AbstractThe microencapsulation of essential oils and its application in textile articles allows the aggregation of different functionalities to the substrates, imparting them antimicrobial properties, cosmetic effects, UV protection, application of drugs, among others. Therefore, the coacervation technique allows good results using starch to prepare the microcapsules. The objective of this work was the microencapsulation of Aloe Vera with cornstarch using the simple coacervation technique in cotton nonwoven fabric using butane tetracarboxylic acid (BTCA) as a binding agent. Optical and Scanning electron microscopy were performed to understand the morphology of the microcapsules obtained; thermogravimetry, to the comprehension of the thermal degradation of the microcapsules; mass gain percentage; FTIR was used to prove the interaction between nonwoven and microcapsule and finally, the CIE WI white index. The micrography allowed the observation of granular morphology, predominantly angular. The thermogravim...