Preparation and properties of coir fiber-reinforced ethylene glycol dimethacrylate-based composite

Abstract

The mechanical properties of the coir fibers were evaluated in this study. Tensile strength (TS), Young's modulus (YM) and elongation at break (Eb%) of virgin coir fibers were found to be 152 MPa, 5.3 GPa and 36%, respectively. Coir fibers were treated with ultraviolet (UV) radiation and were found to improve the mechanical properties significantly. Coir fiber-reinforced ethylene glycol dimethacrylate (EGDMA)-based composite was prepared and characterized. The surface of the coir fibers was modified with monomer EGDMA under UV radiation. Soaking time, monomer (EGDMA) concentration and radiation intensities were optimized over mechanical properties. The highest values of TS, YM, Eb and polymer loading (PL) were found for 50% EGDMA at 125th pass of UV radiation for 7 min soaking time. Pretreatment with UV radiation on the coir fiber was found to be more effective for the increment of its mechanical properties. The surface of the fiber was also mercerized (alkali treatment) using aqueous NaOH solutions (5-50%) at varied time and temperature. It was found that TS of the mercerized composites increased with the increase in NaOH solutions (up to 10%) and then

The Effect of Ethylene Dimethacrylate (EDMA) on Electrical Conductivity and Tensile Properties of Poly (Vinyl Chloride)/Poly (Ethylene Oxide)/Polyaniline (PAni) Conductive Films

“…The presence of EDMA in the conductive film improved the interfacial adhesion between PVC/PEO blends and PAni. Roy et al 6 also found a similar trend in their research. The addition of ethylene glycol dimethacrylate showed further increase of tensile strength in the coir fibre-reinforced ethylene glycol dimethacrylate (EGDMA)-based composite.…”

Effects of alkali treatment on the poly(furfuryl) alcohol–flax fibre composites

“…The content has shown remarkable results in the latest literature of the similar preparation method. 16,17,23 –25 The final curing step was done by raising the temperature of the oven to 150°C and the end of the curing was confirmed using differential scanning calorimetry (DSC). Like in the study of Ahmad et al, 3 no residual exothermic process was observed in the DSC curve.…”

Enhancement of Electrical Conductivity and Tensile Properties of Conductive Poly(vinyl Chloride)/Poly(ethylene Oxide)/Polyaniline Conductive Composite Films: Effect of Polyaniline Loading and Ethylene Dimethacrylate

“…It is understandable that the integration of EDMA in the conductive composite films upgraded the filler-matrix interfacial adhesion as agreed by Roy et al who found a similar trend in their research. 10 The addition of ethylene glycol dimethacrylate showed further increase of tensile strength in the coir fibre-reinforced ethylene glycol dimethacrylate (EGDMA)-based composite.…”