Thermo-oxidative stability and remarkable improvement in mechanical performance for styrenic-based elastomer composites contributed from silane-treated pineapple leaf fiber and compatibilizer
Composites of styrenic based thermoplastic elastomer reinforced with pineapple leaf fiber were prepared by melt mixing on a two-roll mill, sheeted out with preferred alignment of the fiber and molded in the form of composite sheet. The effects of silane treatment and compatibilizer on thermo-oxidative stability and mechanical properties were investigated. The silane-treated fiber and compatibilizer were found to enhance the thermo-oxidative stability of polymer. The mechanical properties of elasomer matrix were clearly enhanced with fiber loading. The role of surface treatment and compatibilizer was effectively functioned only along the longitudinal direction of fiber. Young’s and dynamic storage moduli (E′) along the fiber direction for the treated fiber composites with and without compatibilizer were comparable and much higher than those of the untreated fiber system. Tensile stress at 10–350% for the treated fiber composite was much higher than those of the matrix and untreated fiber composite. The tensile stress was further improved by the addition of compatibilizer. The obtained results suggested that both silane-treatment and compatibilizer were essential in prolonging the further improved tensile stress at high strain.
KeywordsNatural fiber Surface treatment Silane Elastomer Mechanical properties Thermal stability
The authors wish to express their profound gratitude and sincere appreciation to Center of Excellence for Innovation in Chemistry (PERCH-CIC). Partial financial supports from Faculty of Science and Mahasarakham University are also acknowledged.
- 1.Lenzing Group: Global fiber market data (2016) (http://www.lenzing.com/en/investors/equity-story/global-fiber-market.html. Accessed 2 June 17
- 16.Siregar JP, Salit MS, Rahman MZA, Dahlan KZHM (2011) Thermogravimetric analysis (TGA) and differential scanning calometric (DSC) analysis of pine apple leaf fiber (PALF) reinforced high impact polystyrene (HIPS) composites. Pertanika J Sci Technol 19:161–170Google Scholar
- 26.Yuakkul D, Amornsakchai T, Saikrasun S (2015) Effect of maleated compatibilizer on anisotropic mechanical properties, thermo-oxidative stability and morphology of styrenic based thermoplastic elastomer reinforced with alkali-treated pineapple leaf fiber. Int J Plast Technol 19:388–411CrossRefGoogle Scholar
- 31.Legge NR, Holden G, Schoeder HE (1987) Thermoplastic elastomers—a comprehensive review. Hanser, MunichGoogle Scholar
- 40.Panaitescu DM, Gabor RA, Nicolae CA, Ghiurea M, Mihailescu M, Grigorescu RM (2014) Influence of melt processing induced orientation on the morphology and mechanical properties of poly(styrene-b-ethylene/butylene-b-styrene) block copolymers and their composites with graphite. Mater Des 64:694–705CrossRefGoogle Scholar