Deswelling of microfibril bundles in drying wood studied by small-angle neutron scattering and molecular dynamics

نویسندگان

چکیده

Abstract Structural changes of cellulose microfibrils and microfibril bundles in unmodified spruce cell wall due to drying air were investigated using time-resolved small-angle neutron scattering (SANS). The analysis was supported with dynamic vapor sorption (DVS) measurements quantify the macroscopic kinetics. Molecular dynamics (MD) simulations carried out aid understanding molecular-level wood-water interactions during drying. Both SANS experiments support notion that individual remain relatively unaffected by There is, however, a significant decrease fibril-to-fibril distances bundles. DVS showed two distinct regions: constant-rate falling-rate This also MD simulation results. shrinking fibril starts at boundary these regions, which is accompanied strong diffusivity water between microfibrils. Graphic abstract

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ژورنال

عنوان ژورنال: Cellulose

سال: 2021

ISSN: ['1572-882X', '0969-0239']

DOI: https://doi.org/10.1007/s10570-021-04204-y