Effect of Different Emulsifiers on the Preparation Process of Aloe-Emodin Microcapsules and Waterborne Coating Properties

Using microencapsulation technology and the natural antimicrobial properties of aloe-emodin, microcapsules were prepared by in situ polymerization using urea-formaldehyde resin as wall material aloe-emodin core material. The mixed into waterborne coatings to improve ability paint films against bacteria for better protection substrates. purpose this study was optimize preparation process antibacterial microcapsules. With variety concentration emulsifiers changing factors, three different emulsifiers, namely sodium dodecyl benzene sulfonate SDBS, OP-10, Tween-80, selected explore effects emulsifier type microcapsule loading on physicochemical films, morphology, chemical composition, properties, optical roughness tested analyzed. results showed that all with 3.0% than 1.0%. performance microencapsulated varnish addition had advantages disadvantages, highest rates 77.1%, 55.4%, 65.9% Escherichia coli 70.0%, 63.9%, 60.7% Staphylococcus aureus, respectively. film adding SDBS slightly above those other two groups. sets films’ color differences rose, gloss reduced, rate light loss increased, transmission fell, increased an increase content. Aloe-emodin enable water-based coating have expanding application range coatings.