New Kind of Catalyst Used for Preparing Oligomer for Light-Curable Resin
Zhang Jinlu,Cao Ruijun,Wang Suqin
(School of Environmental and Chemical Engineering,Xi'an Jiaotong University,Xi'an 710049,China)

Abstract: The shortcomings of conventional catalyst are bulky and low activity,that lead to long reaction time, large relic volume and high viscosity. A new kind of catalyst-triethyl-allyl ammonia chloride is designed and developed that can be used for preparing a proper oligomer for SL light-curable resin. Owing to unsaturated double bond of the new catalyst,it can participate the reaction when UV solidify,at the same time,the relic volume is decreased. The reaction can be finished at lower temperature(80～90℃) and shorter time (2h) by the high activity of the new catalyst, and the viscosity of resin is also decreased.
Keywords: triethyl-allyl ammonia chloride;stereolithography; SL light-curable resin