Journal of Macromolecular Science Part A, Год журнала: 2024, Номер 61(11), С. 911 - 921

Опубликована: Окт. 16, 2024

Stiff structures are generally considered detrimental to the materials' self-healing efficiency because of rigid conformation and restricted motion molecular chains. However, in this study, an unexpected acceleration was observed a urethane network when lignosulfonate, bio-based stiff structure with benzene rings, introduced into polyurethane matrix. An extraordinary increase mechanical properties achieved just 3 wt% lignosulfonate added pristine sample, including strength from 16.24 MPa 42.89 elongation at break 390% 602%. Importantly, significant enhancement accompanied by notable healing time efficiency, which increased up 44% compared sample. This unique behavior can be attributed mediation on ionic bonds between segment, as well hydrogen formed within segments. ensures ultra-high without compromising capacity opens way for accelerating elastomers through readily available biomass-derived material. In addition, addition lignosulfonates gives elastomer some Anti-UV performance.

Язык: Английский