The Effect of Variations in the Ratio of Matrix/Solvent on the Physical and Mechanical Properties of Chitosan Biopolymer Membranes

3rd International Conference on Functional Materials Science 2016

Rupiasih, N.N.^1,2 ; Sumadiyasa, M.^1 ; Putra, I.K.^1

Department of Physics, Faculty of Mathematics and Natural Sciences, Udayana University, Bali, Denpasar

80361, Indonesia^1

Group Research Material Sciences and Technology-Polymer and Biomaterial, Udayana University, Bali, Denpasar

80361, Indonesia^2

关键词: BJH methods;    Casting method;    Chitosan powder;    Crystallinity index;    Elongation at break;    Physical and mechanical properties;    Pure water;    Swelling index;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/196/1/012039/pdf
DOI  :  10.1088/1757-899X/196/1/012039

来源: IOP

【 摘 要 】

The membranes with various ratio of matrix/solvent such as 1%, 2%, 3%, and 4% were prepared using casting method. Chitosan powder was used as a matrix and acetic acid 1% (v/v) solution as solvent. The physical properties of membranes have been characterized by different techniques including FTIR, XRD, swelling index (SI), BJH method, and filtration, while the mechanical properties have been characterized by tensile strength measurements. The results showed that increasing the amount of matrix resulted in an increased in thicknesses, pores size, the elongation-at-break, elastic moduli, tensile strength and the pure water flux of membranes significantly, whereas the pores density, swelling index and crystallinity index decreased. This study can be simplified to be even faster and straightforward in designing polymer membrane structures for filtration purposes.