Compressive,Chemical Resistance,and Thermal Studies on Kapok/Sisal Fabrics Polyester Composites

Abstract

The naturally occurring fabrics belonging to the species Ceiba pentandra and Agave Vera Cruz were used as reinforcements in the present study. The unsaturated polyester (UP) resin based kapok/sisal hybrid composites were developed by the hand lay-up technique at room temperature. The variations in mechanical properties such as compression strength and modulus, chemical resistance and thermal characteristics of these composites are evaluated as a function of fabric/fiber content and different volume ratios of fabrics. The addition of a relatively small amount of sisal fiber to kapok reinforced polyester matrix enhancing the compressive properties of the resulting hybrid composites. A significant improvement in compressive properties of these hybrid composites has been observed by the NaOH treatment. Among all the resultant hybrid composites those with fabrics ratio of 1:3 demonstrate improved compressive properties. The chemical resistance of these hybrid composites to different chemical reagents and water was studied.

Keywords

compressive strength chemical resistance hybrid composites unsaturated polyester kapok sisal fabrics.

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References

John, K. and Venkata Naidu, S. (2007). Chemical Resistance Studies of Sisal/Glass., Fiber Hybrid Composites, Journal of Reinforced Plastics and Composites, 26(4): 373-376.

Abdul Khalil, H.P.S. , Hanida, S. , Kang, C.W. and Nikfuaad, N.A. (2007). Agrohybrid Composite: The Effects on Mechanical and Physical Properties of Oil Palm Fiber (EFB)/Glass Hybrid Reinforced Polyester Composites, Journal of Reinforced Plastics and Composites, 26(2): 203-218.

Noorunnisha Khanam, P. , Mohan Reddy, M. , Raghu, K. , John, K. and Venkata Naidu , S. (2007). Tensile, Flexural and Compressive Properties of Sisal/Silk Hybrid Composites , Journal of Reinforced Plastics and Composites, 26(9): 1065-1069.

Sreenivasulu, S. , Vijay Kumar Reddy, K. , Varada Rajulu, A. and Ramachandra Reddy, G. (2006). Chemical Resistance and Tensile Properties of Polycarbonate Toughened Epoxy-bamboo Fiber Composites, Bulletin of Pure and Applied Sciences, 25C(2): 137-142.

Rajashekhar Algood. , Sharma, S.C. , Akeel Ahmed Syed. , Varada Rajulu, A. and Krishana, M. (2006). Compression Properties of E-glass/Polyurethane Composites, Journal of Reinforced Plastics and Composites , 25(14): 1445-1447.

Padma Priya, S. and Rai, S.K. (2005). Impact, Compression, Density, Void content and Weight Reduction Studies on Waste Silk Fabric/Epoxy Composites, Journal of Reinforced Plastics and Composites , 24(15): 1605-1610.

Varada Rajulu, A. , Babu Rao, G. , Ganga Devi, L. , Sidda Ramaiah, D. , Shubhaprada, K. , Shrikant Bhat, K. and Shylashree, R. (2005). Mechanical Properties of Short, Natural Fiber Hildegardia populifolia-reinforced Styrenated Polyester Composites, Journal of Reinforced Plastics and Composites , 24(4): 423-428.

John, K. and Venkata Naidu, S. (2004). Sisal Fiber/Glass Fiber Hybrid Composites: The Impact and Compressive Properties, Journal of Reinforced Plastics & Composites, 23(12): 1253-1258.