Abstract:
:Sustainable structural materials with light weight, great thermal dimensional stability, and superb mechanical properties are vitally important for engineering application, but the intrinsic conflict among some material properties (e.g., strength and toughness) makes it challenging to realize these performance indexes at the same time under wide service conditions. Here, we report a robust and feasible strategy to process cellulose nanofiber (CNF) into a high-performance sustainable bulk structural material with low density, excellent strength and toughness, and great thermal dimensional stability. The obtained cellulose nanofiber plate (CNFP) has high specific strength [~198 MPa/(Mg m-3)], high specific impact toughness [~67 kJ m-2/(Mg m-3)], and low thermal expansion coefficient (<5 × 10-6 K-1), which shows distinct and superior properties to typical polymers, metals, and ceramics, making it a low-cost, high-performance, and environmental-friendly alternative for engineering requirement, especially for aerospace applications.
journal_name
Sci Advjournal_title
Science advancesauthors
Guan QF,Yang HB,Han ZM,Zhou LC,Zhu YB,Ling ZC,Jiang HB,Wang PF,Ma T,Wu HA,Yu SHdoi
10.1126/sciadv.aaz1114subject
Has Abstractpub_date
2020-05-01 00:00:00pages
eaaz1114issue
18issn
2375-2548pii
aaz1114journal_volume
6pub_type
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