Preparation of Anti-Mosquito Microcapsule Finishing Agent

Abstract

Slow-released anti-mosquito microcapsules finishing agent was prepared using the resin of melamine-formaldehyde as wall and DEET as core by in-situ polymerization. The effects of emulsifier content and oil/water ratio on anti-mosquito finishing agent were investigated. Scanning electron microscopy (SEM) and laser particle size analyzer were employed to characterize the microcapsules. The optimum synthesis condition was: 3% emulsifier SMA and oil/water ratio at 4:17. Under the conditions, the mean particle size of the capsules was about 39μm.