Effect of milling time on microstructures of nano-sized chitosan
Penulis/Author
KARTIKA SARI (1); Prof. Dr. Kamsul Abraha (2); Prof. Drs. Roto, M.Eng, Ph.D. (3); Mashadi (4); Prof. Dr.Eng. Edi Suharyadi, S.Si., M.Eng. (5)
Tanggal/Date
2019
Kata Kunci/Keyword
Abstrak/Abstract
Effect of milling time on the microstructures of nano-sized chitosan was investigate
is the objective of this work. Variations of milling times were used 0,120 and 180 minutes as
indicated by CH0, CH120 and CH180. For as-prepared chitosan is CH0. The FTIR results
showed that there are not clearly different of the function groups after ball milling treatment.
The average crystallite size results of nano-sized chitosan are 20 nm. The milling process can
decrease crystalline size, but significantly to increase the Polydispersity Index. The FTIR and
XRD results showed the crystalline size of nano-sized chitosan changed on the milling time but
did not change the chemical structure. It could be concluded that the milling time can be
applied to the synthesis the nano-sized chitosan and to reduce the particle size. It also confirms
that the ball mill treatment did not automatically alter the structural properties of nano-sized
chitosan.
