Maleic acid modified lignin

Ultra-flexible, anti-brittle

A bio-based toughening agent that replaces glycerol in gelatin films, markedly improving flexibility and providing UV shielding.

Wang, Shan · Wang, Youmei · Xiang, Lu · Qi, Jinqiu · Jiang, Yongze · Xie, Jiulong

Colloids and Surfaces A: Physicochemical and Engineering Aspects 2024

Advantages

Elongation at break more than twice that of pure gelatin film

Endows films with excellent UV light shielding ability

Can be used as renewable additive to replace glycerol

Lower pyrolysis degradation temperature, easier thermal degradation at end of life