纳米纤维素原料特性对导电纸电极电化学和力学性能的影响( Influence of the nanocellulose raw material characteristics on the electrochemical and mechanical properties of conductive paper electrodes )

A Mihranyan M Esmaeili A Razaq D Alexeichik T Lindstr?M Experimental/ electrical conductivity electrochemical electrodes hydrogen bonds nanocomposites polymerisation polymers porosity tensile strength/ nanocellulose raw material electrochemical properties mechanical properties paper-based conductive electrode materials polypyrrole nanocellulose nonmetal-based energy storage devices ion exchange nanocomposite sheets Cladophora cellulose biopolymer microfibrillated cellulose polymerization specific surface area pore size distribution porosity tensile properties mechanical strength hydrogen-bonding electrical conductivity tensile strength/ A8245 Electrochemistry and electrophoresis A8235 Polymer reactions and polymerization A7360 Electrical properties of thin films and low-dimensional structures A6220F Deformation and plasticity A8140L Deformation, plasticity and creep

乌普萨拉大学生产的刚毛藻纤维素（NC）由FMC Biopolymer生产，微原纤化纤维素（NC）由Innventia AB生产。制备了涂覆在基底NC材料上的聚吡咯复合纸片。用一系列技术对NC原料和复合材料进行表征，以获得它们的结晶度、聚合度、比表面积、孔径分布、孔隙率、电子导电性、电荷容量和拉伸性能。发现所有样品的孔径分布和总孔隙率随着NC纤维的涂覆而增加。发现复合材料的电荷容量随着样品孔隙率的增加而降低。进一步发现，原始NC板材的机械强度很大程度上取决于总孔隙率，NC在该系列中具有最高的机械强度和最低的孔隙率。复合NC-PPY片材的力学性能与原始NC片材相比显著降低，这是因为纤维与PPy包覆的纳米纤维之间的氢键受损。结论是，为了改善PPY-NC片材的力学性能，添加一定量的裸NC纤维是有益的。未来的研究可能包括可溶性和不溶性添加剂对提高PPY-NC板材机械强度的影响。

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