摘要：Cellulose nanofibers were isolated from cassava pulp.The objectives of this study were to study the physical properties of cellulose nanofibers and to determine the effect of its application as filler on mechanical properties of tapioca-film produced.Cellulose nanofibres from cassava pulp were obtained through a series of chemical treatments (alkali treatment and bleaching) and mechanical treatment (high velocity mixer).The cassava pulp cellulose nanofibers were treated to have diameters in the range of 20-30 nm and estimated lengths of several micrometers.Zeta potential measurement indicated that cellulose nanofibers suspension had good stability.Fourier Transform Infrared (FTIR) spectroscopic of cellulose nanofibers demonstrated that the chemical treatment led to partial removal of hemicelluloses and lignin from the structure of fibers.XRD results revealed that chemical treatment also improved crystallinity of fibers to 33.25%.It was observed that the addition of fiber improved of tensile strength of films.The highest tensile strength of film was achieved by the addition of 3% cellulose nanofibers (22.41 MPa).The addition of cellulose nanofibers up to 3% had no effect on elongation at break of the film.
其他摘要：Nanoserat selulosa telah diisolasi dari ampas tapioka dengan tujuan untuk mempelajari sifat fisiknya dan untuk mengetahui pengaruh aplikasinya sebagai bahan pengisi terhadap sifat mekanis film tapioka yang dihasilkan.Nanoserat selulosa diperoleh melalui
