Chemical Treatments of Cotton Linter Cellulose Fiber for Composite Application
M. Rahman
Polymer Research Laboratory, Department of Applied Chemistry and Chemical Technology, Islamic University, Kushtia-7003, Bangladesh
G. M. Arifuzzaman Khan
Polymer Research Laboratory, Department of Applied Chemistry and Chemical Technology, Islamic University, Kushtia-7003, Bangladesh
Md. Helal Uddin
Polymer Research Laboratory, Department of Applied Chemistry and Chemical Technology, Islamic University, Kushtia-7003, Bangladesh
S. M. Abdur Razzaque
Polymer Research Laboratory, Department of Applied Chemistry and Chemical Technology, Islamic University, Kushtia-7003, Bangladesh
Md. Shamsul Alam *
Polymer Research Laboratory, Department of Applied Chemistry and Chemical Technology, Islamic University, Kushtia-7003, Bangladesh
*Author to whom correspondence should be addressed.
Abstract
In the present research work, cellulose fiber was isolated from cotton linter (CL) collected from local textile mills of Kushtia district, Bangladesh. To remove dirt and impurities, CL was pre-treated with NaOH and NaClO2. Fiber was treated with a number of chemicals such as dicumyl peroxide (DCP), acetic anhydride (AA) and acrylamide (AAm). The changes of cellulose molecules during the chemical treatments were detected by FTIR spectra. The crystallinity index of pretreated and treated fibers were measured from the peaks at 14.6 and 22.6 (2θ angles) of WAXD curves. The proportion of crystalline part was increased in case of treated cellulose fiber, which manifests significant conversion of cellulose-I to cellulose-II. A significant variation of thermal properties of pretreated and treated fibers were also observed by TGA.
Keywords: Cotton linter, fiber treatments, FTIR, WAXD, TGA