Optimization study properties of Corn Cob/Polyvinyl Alcohol/Glycerol Biodegradable film considering the effect of chemical composition
In this study, the blended film was made from mixture of corncob powder (CCP)/polyvinyl alcohol (PVA)/glycerol by solution casting method. Various mixtures were prepared by adjusting the loading of CCP and composition of glycerol based on the result from statistical optimization tool. The functional...
Saved in:
| Main Author: | |
|---|---|
| Format: | Final Year Project / Dissertation / Thesis |
| Published: |
2022
|
| Subjects: | |
| Online Access: | http://eprints.utar.edu.my/5252/1/fyp_pe_YK_2022.pdf http://eprints.utar.edu.my/5252/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | In this study, the blended film was made from mixture of corncob powder (CCP)/polyvinyl alcohol (PVA)/glycerol by solution casting method. Various mixtures were prepared by adjusting the loading of CCP and composition of glycerol based on the result from statistical optimization tool. The functional group of CCP and every PVA/CCP/glycerol blended film were determined by Attenuated Total Reflectance Spectroscopy (ATR). Besides, the mechanical properties of every PVA/CCP/glycerol blended film were analyzed by using tensile test in order to determine its tensile strength, elongation at break and elastic modulus. Based on the result, the highest tensile strength and elastic modulus obtained were 11.46MPa and 209.9MPa respectively while the minimum elongation at break obtained was 11.78%. The
mechanical properties of each of the blended film were then further studied by using statistical optimization tool where Analysis of Variance (ANOVA) and Three Dimension (3D) Surface Plot take place.
According to the 3D surface plot, it showed that the result obtained was notoptimum as it did not provided a proper dome shape. However, the statistical optimization tool provided a predicted optimum loading of CCP and composition of glycerol to obtain the optimum mechanical properties of blended film, which were 3g of CCP and 1mL of glycerol. After tensile test, all the fracture PVA/CCP/glycerol blended film would undergo Scanning Electron Microscopy (SEM) for analyzing their cross section morphology. Furthermore, biodegradability test was conducted for studying its biodegradability. Each of the blended film were buried in soil and leave it at outdoor for a month. The result showed that the blended films
which contain 2g of CCP and 1ml of glycerol has the highest biodegradability rate (43.24%)
among other blended film. |
|---|