Preparation and characterizations of swelling behaviour and mechanical properties of γ-PGA/C-CNC hydrogels Final work of the bachelor degree course of study To get the academic degree “Bachelor of Science” by Udara Ariyarathne From Sri Lanka. School of textile Tianjin Polytechnic University, China. Assistance: Withanage Sinith Rashmin First Examiner: Associate Prof. Zheng Li Second Examiner: PhD. Candidate Chunyan Dou Summer Semester2018 (February-June)