Influence of Surface Modifications of Flax Fiber on Mechanical and Flow Properties of Thermoplastic Polyurethane Based Eco-Composites

Date

2016-01-01

Author

Tayfun, Umit
DOĞAN, Mehmet
Bayramlı, Erdal

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

268
views

0
downloads

In this study, several treatments including alkali, permanganate, peroxide and silanization were applied to flax fiber (FF) to improve its adhesion to bio-based thermoplastic polyurethane (TPU) matrix. TPU/FF composites were prepared at a constant ratio of 30 wt% by using extrusion process. Their mechanical properties, modulus of elasticity, water uptake behaviors, melt-flow properties and morphologies of composites were investigated. All treatments resulted in better mechanical properties with respect to untreated FF. Silane treated FF containing composite exhibited the highest tensile strength and lowest water absorption. Results confirmed that surface modifications improve the adhesion between FF and TPU matrix

Subject Keywords

Flax fiber, Green composites, Mechanical properties, Polymer composites, Surface modification, Thermoplastic polyurethane

URI

https://hdl.handle.net/11511/52327

Journal

JOURNAL OF NATURAL FIBERS

DOI

https://doi.org/10.1080/15440478.2015.1029191

Collections

Graduate School of Natural and Applied Sciences, Article

Suggestions

OpenMETU
Core

Effects of glass fiber reinforcement and thermoplastic elastomer blending on the mechanical performance of polylactide Varsavas, S. Deniz; Kaynak, Cevdet (2018-06-01) The purpose of this study was to investigate how optimum mechanical properties (strength-modulus-toughness) of inherently very brittle polylactide (PLA) could be obtained by reinforcing with E-glass fibers (GF) and blending with thermoplastic polyurethane elastomer (TPU). Composites and blends were compounded by twin-screw extruder melt mixing, while specimens were shaped by injection molding. SEM analyses revealed that 15 wt% GF and 10 wt% TPU domains, alone and together, could be uniformly distributed in ...
Investigations of the flax fiber/thermoplastic polyurethane eco-composites: Influence of isocyanate modification of flax fiber surface Tayfun, Umit; DOĞAN, Mehmet; Bayramlı, Erdal (2017-12-01) In this study, alkali and isocyanate surface modifications were applied to flax fiber (FF) to improve its adhesion to bio-based thermoplastic polyurethane (TPU) matrix. In addition to these treatments, isocyanate treated FF was subjected to curing process. TPU/FF composites were prepared at a constant 30 wt% loading of the total by using melt-blending method. Their mechanical properties, modulus of elasticity, melt-flow, water uptake and morphological properties were investigated. All of the surface modific...
Effect of resin and fiber on the abrasion, impact and pressure resistance of cylindrical composite structures Kaya, Derya; Yılmazer, Ülkü; Department of Chemical Engineering (2011) The aim of this study was to investigate the effects of resin and fiber on the abrasion, impact and internal pressure resistances of fiber reinforced plastic composite pipes produced by continuous filament winding method. For this study, pipe samples were produced with different combinations of resin type, fiber type, fiber amount and fiber length. All the samples were tested in accordance with the related ISO (International Organization for Standardization), DIN (German Standardization Institution) and BSI...
Preparation and Characterization of Antibacterial Zeolite-Polyurethane Composites Kamisoglu, K.; Çatman Aksoy, Emine; Akata Kurç, Burcu; Hasırcı, Nesrin; BAÇ, NURCAN (2008-12-05) In this study, antibacterial properties were induced in polyurethane (PU) films by the incorporation of Ag+-loaded zeolites as fillers. The mechanical and thermal properties of the prepared composites were also investigated. For this purpose, two different types of zeolite microparticles, high-silica zeolite beta crystals and low-silica zeolite A crystals, were synthesized. Ag+ was added by ion exchange, and these particles were incorporated into the PU prepolymer, which was prepared from its main component...
Influence of zinc borate on flame retardant and thermal properties of polyurethane elastomer composites containing huntite-hydromagnesite mineral Dike, Ali Sinan; Tayfun, Umit; DOĞAN, Mehmet (2017-11-01) The effect of zinc borate (ZnB) was studied on the flame retardant and thermal properties of thermoplastic polyurethane containing huntite-hydromagnesite. The flame retardant properties of thermoplastic polyurethane-based composites were investigated using limiting oxygen index, vertical burning test (UL 94), thermogravimetric analysis, and mass loss calorimeter. No remarkable effect of ZnB was observed on the flammability properties of composites. UL 94 rating did not change regardless of the added amount ...

Citation Formats

U. Tayfun, M. DOĞAN, and E. Bayramlı, “Influence of Surface Modifications of Flax Fiber on Mechanical and Flow Properties of Thermoplastic Polyurethane Based Eco-Composites,” JOURNAL OF NATURAL FIBERS, pp. 309–320, 2016, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/52327.