Accelerated Aging Cycle of Composite Reinforced High Density Polyethylene (HDPE) Roofing Panel

Abstract:

The purpose of this study is to investigate the effect of accelerated aging cycle (AAC) on water absorption of the composites. The HDPE composite was subjected to a series of six ageing cycles at an elevated temperature. The cycle consist of immersion in water at (49 ± 2°C), explosion to steam and water vapor (93 ± 2°C), stored in freezer (-12 ± 2°C), and heated in oven (99 ± 2°C). It took approximately twelve days to complete this aging cycle. The effect and the changes of water absorption for both control and after accelerated aging were observed and determined. The results showed that water absorption was significant as the greater the fibre percentage, the higher the water absorption. This behavior occurs for both conditions. There were significant differences in the percentage of the water absorption for both control and accelerated aging cycle.

• Periodical: Applied Mechanics and Materials (Volumes 799-800)
• Pages: 192-195
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.799-800.192
• Online since: October 2015
• Authors: Mansur Ahmad, Nurul Atiqah Mohd Ayob*, Nurul Nadia Mohd Khairuddin
• Keywords: Accelerated Aging Cycle, Bamboo, Coconut Coir, HDPE, Kenaf, Reinforced Composite, Water Absorption

References

[1] Y. Wang, J. Meng, Q. Zhao, and S. Qi, Accelerated Ageing Tests for Evaluations of a Durability Performance of Glass-fiber Reinforcement Polyester Composites, J. Mater. Sci. Technol., vol. 26, no. 6, p.572–576, Jun. (2010).

DOI: 10.1016/s1005-0302(10)60087-4

[2] J. Tocháček and Z. Vrátníčková, Polymer life-time prediction: The role of temperature in UV accelerated ageing of polypropylene and its copolymers, Polym. Test., vol. 36, p.82–87, Jun. (2014).

DOI: 10.1016/j.polymertesting.2014.03.019

[3] G. Sala, Composite degradation due to fluid absorption, Compos. Part B Eng., vol. 31, no. 5, p.357–373, Jul. (2000).

[4] A. Boldizar and K. Möller, Degradation of ABS during repeated processing and accelerated ageing, Polym. Degrad. Stab., vol. 81, no. 2, p.359–366, Jan. (2003).

DOI: 10.1016/s0141-3910(03)00107-1

[5] O. Gil-Castell, J. D. Badia, T. Kittikorn, E. Strömberg, a. Martínez-Felipe, M. Ek, S. Karlsson, and a. Ribes-Greus, Hydrothermal ageing of polylactide/sisal biocomposites. Studies of water absorption behaviour and Physico-Chemical performance, Polym. Degrad. Stab., vol. 108, p.212–222, Oct. (2014).

DOI: 10.1016/j.polymdegradstab.2014.06.010

[6] M. A. G. Silva, B. S. da Fonseca, and H. Biscaia, On estimates of durability of FRP based on accelerated tests, Compos. Struct., vol. 116, p.377–387, Sep. (2014).

DOI: 10.1016/j.compstruct.2014.05.022

[7] M. S. Islam, K. L. Pickering, and N. J. Foreman, Influence of accelerated ageing on the physico-mechanical properties of alkali-treated industrial hemp fibre reinforced poly(lactic acid) (PLA) composites, Polym. Degrad. Stab., vol. 95, no. 1, p.59–65, Jan. (2010).

DOI: 10.1016/j.polymdegradstab.2009.10.010

[8] M. A. Aziz, P. Paramasivam, and S. L. Lee, Prospects for natural fibre reinforced concretes in construction, Int. J. Cem. Compos. Light. Concr., vol. 3, no. 2, p.123–132, May (1981).

[9] G. Carra and V. Carvelli, Ageing of pultruded glass fibre reinforced polymer composites exposed to combined environmental agents, Compos. Struct., vol. 108, p.1019–1026, Feb. (2014).

DOI: 10.1016/j.compstruct.2013.10.042

[10] A. Boubakri, N. Haddar, K. Elleuch, and Y. Bienvenu, Impact of aging conditions on mechanical properties of thermoplastic polyurethane, Mater. Des., vol. 31, no. 9, p.4194–4201, Oct. (2010).

DOI: 10.1016/j.matdes.2010.04.023