Document Type : Original Article
Authors
1
Biology Program, School of Distance Education, Universiti Sains Malaysia, Penang, Malaysia
2
School of Materials Science and Green Technologies, Kazakh British Technical University, St Tole bi 59, Almaty 050000, Kazakhstan
3
Kazecoengineering company” LLP, St Turan 50/3, Astana 010017, Kazakhstan
4
Associate Professor of Analytical Chemistry Department of Chemistry, School of Science, The University of Jordan, 11942 Amman, Jordan
5
eInstitute of Organic Synthesis and Carbon Chemistry of the Republic of Kazakhstan, St Alikhanov 1, Karaganda 100000, Kazakhstan
6
-Institute of Organic Synthesis and Carbon Chemistry of the Republic of Kazakhstan, St Alikhanov 1, Karaganda 100000, Kazakhstan -School of Petroleum Engineering, Satbayev University, 22 Satbayev Street, Almaty 050013, Kazakhstan
7
Faculty of Earth and Environmental Sciences, Al Al Bayt University, 25113, Al Mafraq, Jordan
Abstract
A biodegradable co-polymer with starch-based modifying characteristics was prepared using a combining polymerization method, blending polyethene and PVA with xylene and glacial acetic acid. Investigations were conducted into the impact of starch on the viscosity, tensile strength, elongation, and contact angle of biodegradable polymer films. These blended polymers were further mixed with rice straw at concentrations of 1.0, 3.0, and 5.0 wt.% based on the blended polymers. The utilization of starch improved the biodegradability of the films because of functional groups from polyethylene blend polyvinyl alcohol (PE-b-PVA), such as OH, which can form hydrogen bonds with starch. However, an increase in starch content in biodegradable polymers increases the biodegradability of the film and decreases the mechanical properties. Tensile test, elongation and contact angle of P (PE-b-PVA-b-S) were evaluated for different ratios of starch content 3, 5 and 7%. The higher ratio of 7% of starch increases the tensile strength up to % (27.1% MPa) than the lower ratio (19.4% MPa). Conversely, it reduces the elongation to 115 compared to the lower starch content 130. The addition of starch significantly improved the moisture resistance and biodegradability of the new P (PE-b-PVA-b-S) compound, while increasing the amount of rice straw enhanced its mechanical properties.
Keywords
Main Subjects
)
View on SCiNiTO