Abstract
The effect of several fiber surface treatments upon the dynamic mechanical behavior of piassava fiber-reinforced composites was evaluated. In the light of the experimental results obtained the critical volume fraction for the fibers to effectively perform as reinforcement was established. The results show that all treatments performed (mercerization, acetylation, and mercerization + acetylation) enhance the fiber/matrix adhesion, but some treatments also affect the fiber’s integrity. At the elastic region the storage modulus of the composites fabricated with treated fibers was higher than that of the untreated fiber-reinforced composite. However, only the composite manufactured with 10 wt% mercerized fibers showed a statistically significant increase of the storage modulus. Above T g the storage modulus was primarily governed by the volume fraction of fibers. Therefore, raw and treated fiber composites had essentially the same behavior.
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References
Mohanty AK, Misra M, Drzal LT. Sustainable bio-composites from renewable resources: opportunities and challenges in the green materials world. J Polym Environ. 2002;10(1/2):19–26.
Bledzki AK, Gassan J. Composites reinforced with cellulose based fibres. Prog Polym Sci. 1999;24(2):221–74.
Gañán P, Mondragon I. Thermal and degradation behavior of fique fiber reinforced thermoplastic matrix composites. J Therm Anal Calorim. 2003;73(3):783–95.
Mohanty S, Verna SK, Nayak SK. Dynamic mechanical and thermal properties of MAPE treated jute/HDPE composites. Comp Sci Technol. 2006;66(3/4):538–47.
Matsuoka S. Viscoelasticity and thermal analysis. J Therm Anal Calorim. 2000;59(1/2):131–41.
Yang H-S, Gardner DJ, Kim H-J. Viscoelastic and thermal analysis of lignocellulosic material filled polypropylene bio-composites. J Therm Anal Calorim. 2009;98(2):553–8.
d’Almeida JRM, Aquino RCMP, Monteiro SN. Tensile mechanical properties, morphological aspects and chemical characterization of piassava (Attalea funifera) fibers. Composites A. 2006;37(9):1473–9.
Aquino RCMP, Monteiro SN, d’Almeida JRM. Evaluation of the critical fiber length of piassava (Attalea funifera) fibers using the pullout test. J Mater Sci Lett. 2003;22(21):1495–7.
d’Almeida ALFS, d’Almeida JRM, Barreto DW, Calado V. The effect of surface treatments on the thermal behavior and tensile strength of piassava (Attalea funifera) fibers. J Appl Polym Sci. (accepted).
Saha A, Das S, Bhatta D, Mitra B. Study of jute fibre reinforced polyester composites by dynamic mechanical analysis. J Appl Polym Sci. 1999;71(9):1505–13.
Nair KCM, Thomas S, Groeninckx G. Thermal and dynamic mechanical analysis of polystyrene composites reinforced with short sisal fibres. Comp Sci Technol. 2001;61(16):2519–29.
Ray D, Sarkar BK, Bose NR. Impact fatigue behaviour of vinylester resin matrix composites reinforced with alkali treated jute fibres. Composites A. 2002;33(2):233–41.
Wielage B, Lampke Th, Utschick H, Soergel F. Processing of natural reinforced polymers and the resulting dynamical-mechanical properties. Mater Process Technol. 2003;139(1):140–6.
Pothan LA, Oommen Z, Thomas S. Dynamical mechanical analysis of banana fiber reinforced polyester composites. Comp Sci Technol. 2003;63(2):283–93.
d’Almeida JRM, Aquino RCMP, Monteiro SN. Dynamic mechanical behavior of piassava fibers (Attalea funifera) reinforced polyester composites. Int J Polym Mater. 2007;56(4):397–403.
Joseph PV, Mathew G, Joseph K, Groeninckx G, Thomas S. Dynamical mechanical properties of short sisal fibre reinforced polypropylene composites. Composites A. 2003;34(3):275–90.
Aziz SH, Ansell MP. The effect of alkalization and fibre alignment on the mechanical and thermal properties of kenaf and hemp bast fibre composites: part 1—polyester resin matrix. Comp Sci Technol. 2004;64(9):1219–30.
Aziz SH, Ansell MP. The effect of alkalization and fibre alignment on the mechanical and thermal properties of kenaf and hemp bast fibre composites: part 2—cashew nut shell liquid matrix. Comp Sci Technol. 2004;64(9):1231–8.
Idicula M, Malhotra SK, Joseph K, Thomas S. Effect of layering pattern on dynamic mechanical properties of randomly oriented short banana/sisal hybrid reinforced polyester composites. J Appl Polym Sci. 2005;97(5):2168–74.
Agarwal BD, Broutman LJ. Analysis and performance of fiber composites. New York: Wiley; 1980.
d’Almeida JRM, d’Almeida ALFS, Calado V. Evaluation of the effects of surface treatments on the tensile strength of piassava (Attalea funifera) fibers using the Weibull distribution. Polym Renew Resour. (accepted).
de Carvalho LH, de Souza GC, d’Almeida JRM. Hybrid jute/cotton fabric–polyester composites: effect of fabric architecture, lamina stacking sequence and weight fraction of jute fibres on tensile strength. Plast Rubber Compos. 2007;36(4):155–61.
Menard PK. Dynamic mechanical analysis, a practical introduction. Boca Raton: CRC Press; 1998.
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The authors great acknowledge the financial support from CNPq.
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d’Almeida, A.L.F.S., Calado, V., Barreto, D.W. et al. Effect of surface treatments on the dynamic mechanical behavior of piassava fiber–polyester matrix composites. J Therm Anal Calorim 103, 179–184 (2011). https://doi.org/10.1007/s10973-010-1027-y
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DOI: https://doi.org/10.1007/s10973-010-1027-y