OALibJ  Vol.1 No.3 , June 2014
Accelerated Weathering Properties of Hemp Fibre Composites
Abstract: Properties of hemp fibre reinforced unsaturated polyester composites following exposure to accelerated weathering conditions have been studied. Exposure to ultraviolet (UV) radiation and UV radiation plus condensation resulted in immediate loss in weight which stabilised following prolonged exposure times. The same exposure led to initial decline in tensile properties of hemp fibre composites, but the decline in properties also stabilised following prolonged exposure and these materials seemed to perform fairly well in these conditions. The decline in strength and modulus was quite similar, unlike immersion in water where the reduction in modulus was more pronounced than the reduction in strength. Discolouring of composites following exposure to these conditions was identified as an issue with these composites.
Cite this paper: Shahzad, A. (2014) Accelerated Weathering Properties of Hemp Fibre Composites. Open Access Library Journal, 1, 1-8. doi: 10.4236/oalib.1100606.

[1]   Mohanty, A.K., Misra, M. and Hinrichsen, G. (2000) Biofibres, Biodegradable Polymers and Biocomposites: An Over-view. Macromolecular Materials and Engineering, 276-277, 1-24.<1::AID-MAME1>3.0.CO;2-W

[2]   Trojan, F. (1990) Engineering Materials and Their Applications. 4th Edition, Houghton Mifflin Company, Boston.

[3]   Rubin, M. (1969) Polyester Resins. In: Lubin, G., Ed., Handbook of Fibreglass and Advanced Plastics Composites, Van Nostrand Reinhold Co., New York.

[4]   Pritchard, G. (2000) Environmental Testing of Organic Matrix Composites. In: Hodgkinson, M.J., Ed., Mechanical Testing of Advanced Fibre Composites, Woodhead Publishing Limited, Cambridge.

[5]   Schloesser, T.P. (2004) Natural Fiber Reinforced Automotive Parts. In: Wallenberger, F.T. and Weston, N., Eds., Natural Fibers, Plastics and Composites, Kulwer Academic Publishers, Boston.

[6]   Zou, P., Xiong, H. and Tang, S. (2009) Natural Weathering of Rape Straw Flour (RSF)/HDPE and Nano-SiO2/RSF/ HDPE Composites. Carbohydrate Polymers, 73, 378-383.

[7]   Fabiyi, J.S. and McDonald, A.G. (2010) Effect of Wood Species on Property and Weathering Performance of Wood Plastic Composites. Composites Part A, 41, 1434-1440.

[8]   Stark, N.M. and Matuana, L.M. (2006) Influence of Photostabilizers on Wood Flour-HDPE Composites Exposed to Xenon-Arc Radiation with and without Water Spray. Polymer Degradation and Stability, 91, 3048-3056.

[9]   Du, H., Wang, W., Wang, Q., Sui, S., Zhang, Z. and Zhang, Y. (2010) Effects of Pigments on the Ultraviolet Degradation of Wood Flour/HDPE Composites. Journal of Applied Polymer Science, 118, 1068-1076.

[10]   Butylina, S., Hyvärinen, M. and Kärki, T. (2012) A Study of Surface Changes of Wood-Polypropylene Composites as the Result of Exterior Weathering. Polymer Degradation and Stability, 97, 337-345.

[11]   Gauthier, M.M. (1995) Engineered Materials Handbook. ASTM International, New York.

[12]   Shahzad, A. (2011) Effects of Water Absorption on Mechanical Properties of Hemp Fibre Composites. Polymer Composites, 33, 120-128.

[13]   Mehta, G., Mohanty, A.K., Drzal, L.T., Kamdem, D.P. and Misra, M. (2006) Effect of Accelerated Weathering on Biocomposites Processed by SMC and Compression Moulding. Journal of Polymers and Environment, 14, 359-368.

[14]   (1994) The Effect of UV Light and Weather on Plastics and Elastomers. Plastics Design Laboratory, New York.