Adhesion and properties of biomass and PBAT-based hot melt adhesive for packaging

The usage of disposable products is increasing rapidly due to packaging and delivery because of the recent pandemic. As interest in the environment increases, materials used for packaging are also being replaced and recommended with materials with a low environmental load when discarded. In this study, bio-degradable hot melt adhesive (HMA) was prepared from poly(butylene adipate-co-terephthalate), a well-known biodegradable aliphatic-aromatic co-polyester and rosin maleic resin for tackifier. The result indicates that the samples with 30 wt.% maleic modified rosin significantly enhanced the adhesion strength of PBAT from 1.8 to 7.3 MPa. In contrast, the additional excess of 40 wt.% or more maleic modified rosin caused deterioration of adhesion. To examine the adhesion properties of rosin maleic resin as a tackifier as the biodegradable polymer. Mechanical and thermal properties were measured using UTM, DSC, DMA, and Rheometer.