期刊
POLYMERS
卷 14, 期 3, 页码 -出版社
MDPI
DOI: 10.3390/polym14030388
关键词
arrowroot fibers; arrowroot starch; plasticizer; mechanical properties; physical properties; morphological properties
资金
- Universiti Putra Malaysia [UPM.RMC.800-3/3/1/GPB/2020/9694500, 9694500, GP-IPS/2021/9697100, GP-IPS/2021/9702700]
This research focuses on developing and characterizing arrowroot starch-based biocomposite films by incorporating fibers, which improve the mechanical properties and water absorption of the films. The results show that adding fibers significantly increases the tensile and tear strengths of the films, with the optimum filler content being 10%. Additionally, the composite films absorb more water when immersed in seawater and rainwater.
This research is driven by stringent environmental legislation requiring the consumption and use of environmentally friendly materials. In this context, this paper is concerned with the development and characterization of thermoplastic arrowroot starch (TPAS) based biocomposite films by incorporating arrowroot fiber (AF) (0-10%) into a glycerol plasticized matrix by using the solution casting method. Developed TPAS/AF composite films were investigated, such as physical, morphological (FESEM), tensile, and tear strength characteristics. The tensile and tear strengths of TPAS/AF composites were increased significantly from 4.77 to 15.22 MPa and 0.87 to 1.28 MPa, respectively, as compared to the control TPAS films, which were 2.42 MPa and 0.83 MPa, respectively, while elongation was significantly decreased from 25.57 to 6.21% compared to control TPAS film, which was 46.62%. The findings revealed that after the fiber was reinforced, the mechanical properties were enhanced, and the optimum filler content was 10%. Regardless of fiber loadings, the results of water absorption testing revealed that the composite films immersed in seawater and rainwater absorbed more water than distilled water. Overall, the results of this research focus on providing information on biopolymer composite film and revealing the great potential it has for the food packaging industry.
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