Moisture Absorption Behaviour of Biopolymer Polycapralactone (PCL) / Organo Modified Montmorillonite Clay (OMMT) biocomposite films

International Conference on Recent Advances in Materials & Manufacturing Technologies

Malik, Neetu^1 ; Shrivastava, Sharad^1 ; Ghosh, Subrata Bandhu^2

Centre for Materials Science and Technology, Mechanical Engineering Department, Birla Institute of Technology and Science, Pilani

333031, India^1

Mechanical and Mechatronics Engineering, Manipal University Jaipur, 303007, India^2

关键词: Anhydrous conditions;    Biocomposite materials;    Modified montmorillonite;    Moisture absorption;    Nano clays;    Organo-modified montmorillonites;    Swelling characteristics;    Weight percentages;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/346/1/012027/pdf
DOI  :  10.1088/1757-899X/346/1/012027

来源: IOP

【 摘 要 】

Bio composite materials were fabricated using mixing biodegradable polymer polycaptalactone (PCL) and Organo Modified Montmorillonite Clay (OMMT) through solution casting. Various samples of bio composite films were prepared by varying the OMMT wt% composition by 0.1%, 0.5%, 1% and 1.5%. Thereafter, the density and water absorption of the composites were investigated with respect to immersion time in water. The moisture absorption results show that with an increase in weight percentage (from 0.1 to wt 1.5%) of OMMT within the bio polymer films, the absorption value of bio-nanocomposite films reduced rapidly from 34.4% to 22.3%. The density of hybrid composites also increased with increase in weight percentage of OMMT. The swelling characteristic of PCL increased with increasing % of OMMT clay. These results indicate that the optimized composition of constituents in composite membrane could effectively reduce the anhydrous conditions of bio-composite film.