Biodegradation Behaviour of Thermoplastic Starch Films Derived from Tacca leontopetaloides Starch under Controlled Composting Condition

3rd International Conference on Global Sustainability and Chemical Engineering

工业技术;化学工业

Mohd Amin, A.M.^1 ; Mohd Sauid, S.^1 ; Ku Hamid, K.H.^1 ; Musa, M.^1

Faculty of Chemical Engineering, Universiti Teknologi MARA, Shah Alam, Malaysia^1

关键词: Automatic systems;    Biodegradation process;    Biodegradation rate;    Biodegradation studies;    Composting conditions;    Rice husk;    Thermoplastic starch;    Thermoplastic starch films;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/358/1/012050/pdf
DOI  :  10.1088/1757-899X/358/1/012050

学科分类：工业工程学

来源: IOP

【 摘 要 】

The biodegradation study of thermoplastic starch (TPS) films derived from Tacca leontopetaloides starch; namely TPS/GLY, TPS/ACE and TPS/BCHR were investigated under controlled composting conditions. A manual set-up test rig in laboratory scale was built according to ISO 14855-1: 2012. The biodegradation percentage was determined by measuring the amount of CO2 evolved using titration method and validated by automatic system (Arduino UNO System) that detected the CO2 evolved. After 45 days under controlled composting condition, results indicated that TPS/GLY degraded the fastest, followed by TPS/BCHR and the TPS/ACE had the slowest degradation. The biodegradation process of TPS/GLY, TPS/ACE and TPS/BCHR also exhibited two stages with different degradation speeds. From these results, it indicated that chemical modification of the TPS films by adding acetic acid and rice husk bio-char to the thermoplastic starch can have a major impact on the biodegradation rate and final biodegradation percentage.