Disassociated molecular orientation distributions of a composite cellulose–lignin carbon fiber precursor: A study by rotor synchronized NMR spectroscopy and X-ray scattering

Cellulose–lignin composite carbon fibers have shown to be a potential environmentally benign alternative the traditional polyacrylonitrile precursor. With associated cost reduction, cellulose–lignin are an attractive light-weight material for, e.g. wind power and automobile manufacturing. The fiber tenacity, tensile modulus creep resistance is in part determined by content molecular orientation distribution of This work disassociates different components using rotor-synchronized solid-state nuclear magnetic resonance spectroscopy X-ray scattering. Our results show that lignin completely disordered, mechanically stretched fiber, while cellulose ordered. In contrast, native spruce wood raw displays both oriented cellulose. current processes for fabricating cannot regain as observed from wood.