Ultra-high-strength composite films prepared from NMMO solutions of bamboo-derived dissolving pulp and chitosan

A Cost-Effective and Chemical-Recycling Approach for Facile Preparation of Regenerated Cellulose Materials

“…However, CM-cellulose with DS = 0.15 could be rapidly dissolved by NaOH solution precooled at 0 °C (Figure c and d). The tensile strength and Young’s modulus of the films were 226.0 ± 43.7 MPa and 10.1 ± 1.2 GPa (Figure a and b), which are comparable with the tensile properties of cellulose films reported in the literature . The film could even lift a weight of two kilograms (Figure S15).…”

“…The tensile strength and Young's modulus of the films were 226.0 ± 43.7 MPa and 10.1 ± 1.2 GPa (Figure 4a and b), which are comparable with the tensile properties of cellulose films reported in the literature. 25 The film could even lift a weight of two kilograms (Figure S15). We further explored the effect of DS of CM-cellulose on the mechanical properties of the films.…”

“…39 (f) Ashby diagram of tensile strength versus strain for CM-cellulose films compared with the cellulose films prepared from other regeneration methods including NaOH/urea, 3,18 LiOH/urea, 40,41 N,N-dimethylacetamide (DMAc)/lithium chloride (LiCl), 42,43 ionic liquids 44,45 and NMMO. 10,25 Nano Letters CM-bamboo films (Figures S21 and S22). In comparison, the tensile strengths of CM-bamboo and CM-poplar films were significantly lower than those of CM-cellulose films (Figure 5b and c).…”

“…(e) Ashby diagram of tensile strength versus Young’s modulus for CM-cellulose films compared with natural polymer-based films including starch, , gelatin, , soy protein, , chitin, , silk protein, , and chitosan . (f) Ashby diagram of tensile strength versus strain for CM-cellulose films compared with the cellulose films prepared from other regeneration methods including NaOH/urea, , LiOH/urea, , N,N-dimethylacetamide (DMAc)/lithium chloride (LiCl), , ionic liquids , and NMMO. , …”