Contact-dewatered cellulose nanomaterials for reinforced biopolymer composites
Publication Name: Materials Today Communications
In this work, the viability of contact dewatering of cellulose nanofibrils (CNFs) and lignin-containing cellulose nanofibrils (LCNFs) was tested to achieve nanoscale morphology of dried fibers on wood particles with varying CNF and LCNF contents after dewatering and oven drying. Nanoscale dimensions of dried CNFs and LCNFs were observed on the surface of wood particles and mechanical testing of WF-CNF and WF-LCNF furnish-incorporated poly(lactic) acid (PLA) composites showed similar or better properties than PLA mixed with spray-dried CNFs. Analysis of theoretical energy required to dry CNFs and LCNFs via contact dewatering showed a considerable reduction compared to non-dewatered CNFs.