Indian Journal of Engineering & Materials Sciences

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Polyvinyl Alcohol Composite Films Reinforced with Taro (Colocasia esculenta) Stem Fiber: Thermal, Mechanical and Biodegradation Studies


Affiliations
1 Department of Chemistry, Dyal Singh College, Karnal 132 001, India
2 Department of Chemistry, Ch. Bansi Lal University, Bhiwani 127 021, India
3 Department of Chemistry, Dr. B.R.A.Govt. College, Kaithal 136 027, India
4 Department of Chemistry, Mukand Lal National College, Yamunanagar 135 001, India
5 Department of Chemistry, Kurukshetra University, Kurukshetra 136 119, India
 

Polyvinyl alcohol/Glycerol/Citric acid based composite samples have been synthesized by the method of solvent casting. The composites have been explored in terms of thermal, tensile, biodegradability, water absorption analysis and SEM study with the addition of Colocasia esculenta stem fiber (2.5-20.0 %). The equilibrium water absorption percentage with the addition of fiber and upon the increasing content of fiber has been found to be increased with an abrupt change above 12.5 % fiber content. The high value of degradation percentage has been however observed with 20 % loading of fiber (29.13±1.28). Thermal stability of the composite films has also been found to show positive results with the addition of fiber with maximum value of onset degradation temperature obtained with 7.5 % reinforcement. The incorporation of fiber has resulted in enhancement of tensile strength due to modified interfacial adhesion between fiber and matrix with maximum value of 36.06±0.25 MPa obtained for composite with 7.5 % loading of fiber. SEM micrographs have shown the smooth and homogeneous surface of composite film without any loading of fiber (CE-0). High loading of fiber (20 %) however has introduced some voids, holes and cracks in the samples making it easy for water molecules to permeate in the composites responsible for its water absorption percentage.

Keywords

Polyvinyl Alchol (PVA), Colocasia esculenta, Biodegradability, Mechanical, Thermal.
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  • Polyvinyl Alcohol Composite Films Reinforced with Taro (Colocasia esculenta) Stem Fiber: Thermal, Mechanical and Biodegradation Studies

Abstract Views: 86  |  PDF Views: 61

Authors

Kapil Gulati
Department of Chemistry, Dyal Singh College, Karnal 132 001, India
Rachna
Department of Chemistry, Ch. Bansi Lal University, Bhiwani 127 021, India
Seema Rani
Department of Chemistry, Dr. B.R.A.Govt. College, Kaithal 136 027, India
Mahesh Kumar
Department of Chemistry, Mukand Lal National College, Yamunanagar 135 001, India
Geetanjali Jagdeva
Department of Chemistry, Kurukshetra University, Kurukshetra 136 119, India
Suresh Kumar
Department of Chemistry, Kurukshetra University, Kurukshetra 136 119, India
Sohan Lal
Department of Chemistry, Kurukshetra University, Kurukshetra 136 119, India
Sanjiv Arora
Department of Chemistry, Kurukshetra University, Kurukshetra 136 119, India

Abstract


Polyvinyl alcohol/Glycerol/Citric acid based composite samples have been synthesized by the method of solvent casting. The composites have been explored in terms of thermal, tensile, biodegradability, water absorption analysis and SEM study with the addition of Colocasia esculenta stem fiber (2.5-20.0 %). The equilibrium water absorption percentage with the addition of fiber and upon the increasing content of fiber has been found to be increased with an abrupt change above 12.5 % fiber content. The high value of degradation percentage has been however observed with 20 % loading of fiber (29.13±1.28). Thermal stability of the composite films has also been found to show positive results with the addition of fiber with maximum value of onset degradation temperature obtained with 7.5 % reinforcement. The incorporation of fiber has resulted in enhancement of tensile strength due to modified interfacial adhesion between fiber and matrix with maximum value of 36.06±0.25 MPa obtained for composite with 7.5 % loading of fiber. SEM micrographs have shown the smooth and homogeneous surface of composite film without any loading of fiber (CE-0). High loading of fiber (20 %) however has introduced some voids, holes and cracks in the samples making it easy for water molecules to permeate in the composites responsible for its water absorption percentage.

Keywords


Polyvinyl Alchol (PVA), Colocasia esculenta, Biodegradability, Mechanical, Thermal.

References