Investigation of Sorption and Mechanical Properties of Anacardium Occidentale L. Exudate/Polystyrene Blends
American Journal of Applied Chemistry
Volume 2, Issue 5, October 2014, Pages: 80-84
Received: Sep. 26, 2014;
Accepted: Oct. 9, 2014;
Published: Oct. 20, 2014
Views 2964 Downloads 157
Alisi Ikechukwu Ogadimma, Department of Applied Chemistry, Federal University, Dutsinma, Katsina State, Nigeria
Gimba Casmir Emmanuel, Department of Chemistry, Ahmadu Bello University, Zaria, Kaduna State, Nigeria
Kolawole Emmanuel Gbadebo, Department of Industrial Chemistry, Bowen University, Iwo, Osun State, Nigeria
This research employed the technique of melt blending to successfully blend commercial polystyrene (PS) with purified cashew gum (PCG) and induce biodegradation on the resulting polymer blend. Water sorption tests on the resulting polymer blends were investigated according to ASTM D0570 standard. Also tensile, hardness and charpy impact tests were conducted according to ASTM D3039, ASTM D2240-89 and ASTM 370 standards respectively. There was an observed increase in density with increase in PCG composition. The maximum density recorded was 0.996gcm^(-3). The water sorption analysis show that DS (degree of swelling) and WL (weight loss) increase with PCG concentration to a maximum value of 100% recorded for the sample 20%PS/80%PCG. The tensile test results indicate a general decrease in Young’s modulus, tensile strength and percentage elongation with increase in the percentage of PCG. Also hardness test results based on the Rockwell F – scale indicate an improvement in mechanical strength with increase in PCG composition. The sample with composition 30%PS/70%PCG has the highest hardness value of 69.1 HRF. While the results of charpy impact test indicate a general decrease in impact strength as the concentration of PCG in PS increases with a minimum value of 2272.72Jm^(-2) for the composition 20%PS/80%PCG.
Alisi Ikechukwu Ogadimma,
Gimba Casmir Emmanuel,
Kolawole Emmanuel Gbadebo,
Investigation of Sorption and Mechanical Properties of Anacardium Occidentale L. Exudate/Polystyrene Blends, American Journal of Applied Chemistry.
Vol. 2, No. 5,
2014, pp. 80-84.
H. Azman, W. M. Uzir, Y. C. Ching and C. H. Azahari, “Effect of Linear Low Density Polyethylene on the Mechanical Properties and Morphology of Polypropyolene/ Natural Rubber Blends, ” Journal of The Institute of Materials Malaysia, vol. 4, pp. 3-18, 2003.
A. I. Buthaina and M.K. Karrer, “Influence of Polymer Blending on Mechanical and Thermal Properties, ” Journal of Modern Applied Science, vol. 4(9), pp. 157-161, 2010.
S. Cimmino, E. Di Pace, E. Martuscelli and C. Selvestre, “Syndiotactic Polystyrene, Crystallization and Melting Behavior,” Polymer, vol. 32, pp. 1080, 1991.
W. Ezeagu, “Assessment of the situation and development prospects for cashew nut sector,” A report, Nigerian Export Promotion Council, Abuja, Nigeria. Available online at www.unctad.org, 2002.
K. E. George, J. Rani, and D. J. Francis, “Studies on NBR/PVC Blends,” Journal of Applied Polymer Science , vol. 32, pp. 2867-2873, 1986.
E. Gyedu- Akoto, I. Oduro, F. M. Amoah, J. H. Oldham, W. O. Ellis, K. F. Opoku-Ameyaw, and B. H. Rasheed, “Physico-Chemical Properties of Cashew Tree Gum,” African Journal of Food Science, vol. 2, pp. 060-064, 2008.
K. Kaniappan, and S. Latha, “Certain Investigations on the Formulation and Characterization of Polystyrene / Poly(methyl methacrylate) Blends,” International Journal of ChemTech Research,vol. 3(2), pp. 708-717, 2011.
R. Kumar, M. B. Patil, S. R. Patil, and M. S. Paschapur, “Evaluation of Anacardium occidentale gum as gelling agent in aceclofenac gel,” International Journal of PharmTech Research, vol. 1 (3), pp. 695 – 704, 2009.
A. D. McNaught, and A. Wilkinson, “IUPAC Compendium of Chemical Terminology (the “Gold Book”), 2nd ed., Blackwell Science, Oxford, 1997,”
G. Scott and D. Gillead, “Degradable Polymers,” Chapman & Hall, London, 1995.
F. C. Stelling, T. Huff, C. S. Speed and G. Wissler, “Structure and Properties of Rubber-Modified Polypropylene Impact Blends,” Poly. Eng. Sci., vol. 26, pp. 2693, 1981.
V. Wantinee, L. L. Richard and J. Jayant, “Impact Resistance of Selected Immiscible Polymer Blends,” Society of Plastics Engineers [SPE] Annual Technical Conference Proceedings Cincinnati, OH May, 2007.
S. M. Zebarjad, A. Lazzeri, R. Begheri, S.M. S. Rehemi and M. Frounchi, “Fracture Mechanism Under Dynamic Loading of Elastomer-Modified Polypropylene,” Materials Letter, vol. 57, pp. 2733-2741, 2003.