There are increasing environmental concerns for plastic (oil-based polymers) in society today, and there has been an effort to introduce more environmentally friendly materials like Starch-based bioplastics because it is obtained from a renewable resource and is relatively cheaper than other biodegradable polymers. This research investigates corn and rice starch use to increase the tensile properties of various bioplastics used for packaging applications. The specific use of rice and corn starch is prompted by the high amounts of amylose polysaccharides found in them compared to other starch sources. The ingredients used were starch or flour, Vinegar, water, and glycerol. These samples were made in 50/50 compositions of either rice or corn starch and the other starches used. The test carried out analyzed the thickness measurements, surface microscopy, water-solubility, water content, tensile strength, and biodegradability of the bioplastic. The results show an increase in the tensile strength of the samples, but water solubility and absorption were also increased. Using blends of rice or corn starch with other starches offers better performance than the conventional bioplastics from one starch source.
Audience Take Away:
- The audience will be able to know the bio-plastic synthesis techniques.
- They can also be able to understand the various raw materials to make PLA.
- They will be able to know the characterization of bio-PLA.