Plasma-Induced Fibrillation and Surface Functionalization of Cellulose Microfibrils
نویسندگان
چکیده
The classical production of microfibrillar cellulose involves intensive mechanical processing and discontinuous chemical treatment in solvent-based media order to introduce additional surface modification. By selecting appropriate conditions a pulsed plasma reactor, solvent-free low-energy input process can be applied with the introduction microcrystalline (MCC) maleic anhydride (MA) powders. results progressive fibrillation powder into its elementary fibril structure in-situ modification produced fibrils more hydrophobic groups that provide good stability against re-agglomeration fibrils. selection critical ratio MA/MCC = 2:1 allows separating single microfibrils changeable morphologies depending on time. Moreover, density changed through different duty cycle times, while influence power pulse frequency is inferior. variations time followed along as gain smaller diameter become somewhat longer increasing This related activation hierarchical diffusion MA within structure, causing weakening hydroxyl bonding. In parallel, creation reactive species creating active sites allow for interaction between complex morphologies. has been demonstrated by XPS FTIR analysis, indicating successful esterification at surface. particular, crystallinity augmented after Furthermore, AFM evaluation shows structures irregular roughness patterns contribute better incorporation an eventual polymer matrix. conclusion, combination physical provides sustainable approach fabrication advanced nanotechnological materials.
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ژورنال
عنوان ژورنال: Engineering proceedings
سال: 2021
ISSN: ['2673-4591']
DOI: https://doi.org/10.3390/asec2021-11136