| According to the pharmacological and medical properties of aromatic flavors,aromatic not only make people feel good,but also play a role of healthcare unwittingly.In order to increase the durability of aromatic onto textiles microencapsulation technologies are applied usually.There are strict requirements not only for major materials but also for preparations,such as degradable,biocompatibility,stability,no organic solvent and non-toxicity.Therefore,in our study,we chose β-cyclodextrin as the main material,double wall mothed was used to increase the durability,asecond wall material was synthetized with polydopamineor chitosan,viaself-polymerization crosslinking and ionic crosslinking,respectively.The main contents of this study are as follows:(1)Two kinds of composite fragrant microcapsules were prepared form mint oil as core material,β-cyclodextrin as the first wall material(β-CD microcapsule,β-CDM),polydopamine or chitosan as the second wall material srespectively.There are similar morphologies,polydopamine composite fragrant microcapsule(PDAM)has a narrow size distribution and the mean particle size is less than 5μm,chitosan composite fragrant microcapsule(CSM)is easily prone to reunion.Loading content follows the deceasing of PDAM>CSM>β-CDM.(2)Release test by itself at room temperature and 50℃respectively or applied in textiles,there is the same regular as loading content for the self-time,following the deceasing of PDAM>CSM>β-CDM.The results show that the second wall material,especially for polydopamine,even after laundry test,has obviously effect on release of mint oil.In conclusion,a novel composite fragrant microcapsule was prepared with capable of preserving mint oil for long self-life and a narrow size distribution based on β-CD.Besides,the antibacterial property and good hydrophilicity of CS and polydopamine provide a good foundation for our following study. |
