Effect of aliphatic isocyanates (HDI and LDI) as coupling agents on the properties of eco-composites from biodegradable polymers and corn starch

Effect of diisocyanates as compatibilizer on the properties of ramie/poly(lactic acid) (PLA) composites

“…It was understandable that the isocyanate group content at which the value of tensile strength plateaued was considered the critical interfacial concentration for the composite. The critical interfacial concentration was the minimum value of interfacial saturation for an interfacial agent in the dispersed phase [21]. The similar trend was also found in the flexural strength and impact strength of the composites with various IPDI content treated, which was shown in Fig.…”

Bio-based blends of starch and poly(butylene succinate) with improved miscibility, mechanical properties, and reduced water absorption

“…To achieve improved properties of blends, the compatibility between natural polymers and aliphatic polyesters has to be enhanced, and considerable progress has been made in this regard (Li, Zeng, Wang, Yang, & Wang, 2008;Nabar, Raquez, Dubois, & Narayan, 2005;Ohkita & Lee, 2004;Raquez, Nabar, Narayan, & Dubois, 2008). Taking starch/aliphatic polyester blends as examples, Maliger, McGlashan, Halley, and Matthew (2006) have reported on a compatible blend of starch and polyester through reactive extrusion using maleic anhydride (MA) and dicumyl peroxide (DCP) as compatilizer and initiator, respectively.…”

Poly(Ethylene Glycol) Grafted Starch Introducing a Novel Interphase in Poly(Lactic Acid)/Poly(Ethylene Glycol)/Starch Ternary Composites

“…Cross-linking reaction was also applied to bond PLA molecules onto starch particles during reactive extrusion. Maleic anhydride (MA) [28,29] and diisosyanates [30][31][32][33] were reported to be used to introduce chemical interactions for the PLA/starch system.…”