Sustainable hot-melt adhesives (HMA) from polycaprolactone (PCL) and soybean protein isolate (SPI)

TOUS L.; CIANNAMEA, E. M.; RUSECKAITE, R.A.

Mar del Plata

Congreso; XVI Simposio Latinoamericano de Polímeros (SLAP 2018) - XIV Congreso Iberoamericano de Polímeros (CIP 2018); 2018

Instituto de Ciencia y Tecnología en Materiales (INTEMA)

Hot-meltadhesives (HMAs) are thermoplastic materials that are applied in the moltenstate and solidify upon cooling to consolidate the adhesion1,2. The conventional formulations containsa base polymer (i.e. polyolefins), a tackifier (i.e. aliphatic hydrocarbonsthat grants the tack) and waxes or plasticizers (i.e. paraffins, to control themelt viscosity)1. All these components can be replaced by moreenvironmentally sound alternatives derived from renewable resources to fulfilenvironmental requirements2. In this sense, the goal of this work was to develop and characterizeHMAs based on soybean protein isolate (SPI) with well-known adhesive ability3,a synthetic biodegradable thermoplastic polymer, polycaprolactone (PCL), castoroil (CO) as plasticizer/ compatibilizing agent and pine resin (PR) as tackifier.