Effects of abaca fiber reinforcement on the dynamic mechanical behavior of vinyl ester composites
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Anandraj Mohan Kumar
Abstract
The present study aims in analyzing the mechanical behavior of natural fiber (abaca) reinforced polymeric composites under dynamic conditions. It is evident from the past research reports that natural fiber offers desirable physico-mechanical properties to the added polymers. In the present research work, abaca fiber is utilized for the preparation of composites due to its promising mechanical properties and resistance to salt water corrosion, its lignin content is 15% and grows up to 3 m. Abaca is extracted from leaf sheath of Manila hemp plant, it is a kind of banana family. Influence of temperature on the mechanical behavior of natural fibers needs to be identified to ensure its usage for high performance applications. Pure and chemically treated abaca fiber based vinyl ester composites are subjected to dynamic mechanical analysis (DMA). The reason for the chemical treatment of abaca fiber is to enhance its interfacial bonding with base matrix. Fourier transform infrared spectroscopy (FT-IR) analysis signifies the morphological changes in abaca fiber after chemical treatment. Storage modulus (E') and damping characteristics of abaca fiber reinforced vinyl ester composites are comparatively higher than in neat polymer. In addition, surface treatment of fiber demonstrates significant enhancement in storage modulus compound compared to pure and raw fiber reinforced polymer due to strong physical interaction between fiber and matrix.
Kurzfassung
Die diesem Beitrag zugrunde liegende Studie zielt darauf ab, das mechanische Verhalten von naturfaserverstärkten (Abaka) Polymerkompositen unter dynamischen Bedingungen zu analysieren. Es ist aus vergangenen Forschungsberichten bewiesen, dass Naturfasern die erforderlichen physikalisch-mechanischen Eigenschaften für die hinzugegebenen Polymere bereitstellen. In der vorliegenden Forschungsarbeit wurden Abaka-Fasern verwendet, um Komposite herzustellen, da diese vielversprechende mechanische Eigenschaften und Resistenz gegenüber Salzwasserkorrosion aufzeigen, wobei der Ligningehalt 15% betrug und bis zu 3 m anwuchs. Abaka wird von dem Blattschuh der Manila-Hanfpflanze extrahiert, die eine Art der Bananenfamilie darstellt. Es ist notwendig, den Einfluss der Temperatur auf das mechanische Verhalten der Naturfasern zu identifizieren, um ihre Nutzung für High-Perfomance-Anwendungen sicher zu stellen. Es wurden reine und auf chemisch behandelte Abaka-Faser basierende Vinylester-Komposite dynamischen mechanischen Analysen (Dynamic Mechanical Analysis – DMA) unterworfen. Der Grund der chemischen Behandlung der Abaka-Faser ist es, ihre Grenzflächenbindung mit der Basismatrix zu steigern. Die Analyse mittels Fourier-Transformations-Infrarotspektroskopie (FT-IR) zeigt die morphologischen Veränderungen in der Abaka-Faser nach der chemischen Behandlung. Der Speichermodul (E') und die Dämpfungscharakteristika der abakafaserverstärkten Vinylester-Komposite sind vergleichsweise höher als des ursprünglichen Polymers. Zusätzlich zeigt die Oberflächenbehandlung der Faser eine signifikante Steigerung des Speichermodules im Vergleich zum reinen und rohfaserverstärkten Polymer aufgrund der starken physikalischen Wechselwirkung zwischen Faser und Matrix.
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© 2017, Carl Hanser Verlag, München
Artikel in diesem Heft
- Inhalt/Contents
- Contents
- Fachbeiträge/Technical Contributions
- The principles of measurement and testing to characterize material properties
- Electrochemical behavior of alloy AgCu50 during oxidation in the presence of chlorides and benzotriazole
- Mechanical property effects of symmetrical hour glass shapes formed during double-sided TIG keyhole arc welding of AISI1040 joints
- Residual stress state in pipe cut ring specimens for fracture toughness testing
- Effect of overlap length and scarf angle on the mechanical properties of different adhesive joints subjected to tensile loads
- Effect of post-weld heat treatment on fusion boundary microstructure in dissimilar metal welds for subsea service
- Effects of abaca fiber reinforcement on the dynamic mechanical behavior of vinyl ester composites
- Experimental and theoretical study of the rubbing process of epoxy composites against steel
- Structural self-organization of titanium alloys under impulse force action
- Effect of SiC particle size on the mechanical properties of closed aluminum foams
- Comparison of different bushing applications in composite structures of the aerospace industry
- Performance monitoring of superlarge-diameter rock-socketed piles by optic fiber sensors
- Free vibration of a Timoshenko beam carrying three dimensional tip mass: Analytical solution and experimental modal testing
- Electrochemical properties of LaNi4.2Co0.4Zn0.1Al0.3 and LaNi4.3Co0.4Zn0.1Al0.2 alloys as anode materials for Ni-MH batteries
- Production of hard hydrophilic Ni-B coatings on hydrophobic Ni-Ti and Ti-6Al-4V alloys by electroless deposition
Artikel in diesem Heft
- Inhalt/Contents
- Contents
- Fachbeiträge/Technical Contributions
- The principles of measurement and testing to characterize material properties
- Electrochemical behavior of alloy AgCu50 during oxidation in the presence of chlorides and benzotriazole
- Mechanical property effects of symmetrical hour glass shapes formed during double-sided TIG keyhole arc welding of AISI1040 joints
- Residual stress state in pipe cut ring specimens for fracture toughness testing
- Effect of overlap length and scarf angle on the mechanical properties of different adhesive joints subjected to tensile loads
- Effect of post-weld heat treatment on fusion boundary microstructure in dissimilar metal welds for subsea service
- Effects of abaca fiber reinforcement on the dynamic mechanical behavior of vinyl ester composites
- Experimental and theoretical study of the rubbing process of epoxy composites against steel
- Structural self-organization of titanium alloys under impulse force action
- Effect of SiC particle size on the mechanical properties of closed aluminum foams
- Comparison of different bushing applications in composite structures of the aerospace industry
- Performance monitoring of superlarge-diameter rock-socketed piles by optic fiber sensors
- Free vibration of a Timoshenko beam carrying three dimensional tip mass: Analytical solution and experimental modal testing
- Electrochemical properties of LaNi4.2Co0.4Zn0.1Al0.3 and LaNi4.3Co0.4Zn0.1Al0.2 alloys as anode materials for Ni-MH batteries
- Production of hard hydrophilic Ni-B coatings on hydrophobic Ni-Ti and Ti-6Al-4V alloys by electroless deposition
