Poster 27: Synthesis of Biobased-Poly(lactic acid) Aery I ate resin for UV-Curable Coating Applications

摘要

The objective of this research is to synthesize poly(lactic acid) (PLA) based acryiate to use as an oligomer in UV-curable coating applications. UV-curable process is widely used in paint, ink and adhesive industries due to its rapid curing speed, low energy consumption, high efficiency and low volatile organic compounds (VOCs). PLA was glycolyzed by ethylene glycol (EG) at 190oC for 90 minutes. The obtained glycolyzed PLA was then reacted with methacrylic anhydride (MAAH) to provide PLA acryiate oligomer. The PLA acryiate oligomer was used in coating formulations with various types and amounts of reactive diluents. Physical properties of cured coating film were investigated such as pencil hardness, gloss, chemical resistance and haze. The results showed that the UV-curable coating can be prepared from bio-base materials for environmental friendly concern. In addition, the coating film showed good physical properties.