Effect of mape on the mechanical properties of rubber wood fiber/thermoplastic natural rubber composites

Abstract

ABSTRACT:Rubber wood fiber/reinforced thermoplastic natural rubber (RWF/TPNR) composites were prepared. A blend of natural rubber with high-density polyethylene was prepared by melt blending the materials in the internal mixer of Brabender Plasticorder machine. RWF and TPNR were mixed with different fractions of fiber (0, 5, 10, 20, and 30%) in the internal mixer. To investigate the influence of coupling agent on the mechanical properties, concentrations of maleic anhydride polyethylene (MAPE) were employed in the composites. The mechanical properties and morphology of composite material were characterized with tensile machine and scanning electron microscope, respectively. The results showed that the addition of MAPE has a positive effect on the tensile strength and Young's modulus while the maximum strain was reduced. SEM micrographs showed good adhesion between RWF and TPNR when the coupling agent was applied. C

Effect of Variables on the Mechanical Properties and Maximization of Polyethylene—Aspen Composites by Statistical Experimental Design

“…With the employment of MAPE and DCP, the strain at max decreases obviously when aspen fiber are incorporated from 155.8% of virgin PE to 21.6% of PE-aspen composites with 30 wt% fiber employed which is in agreement with the previous works [20][21][22] because the fiber low elongation at break restricts the polymer molecules flowing past one another [23]. The addition of fibers had a positive effect on the rigidity of the composite because aspen fiber lower flexibility compared to PE fiber: a mobility of the matrix was restricted and resulted in a stiffer composites.…”

Poly(propylene)/aspen/liquid polybutadiene composites: maximization of impact strength, tensile and modulus by statistical experimental design

“…PBNCO, which is compatible with the matrix, can easily react with OH groups on cellulosic fibers and graft itself via polyurethane bonds and MAPP in the presence of DCP can form covalent bonds with fiber as well as the PP matrix. 3,7,11 The effect of fiber loading on the impact strength at constant optimum composition of MAPP, PBNCO and DCP can be clearly seen in Fig. 5.…”

“…6 However, the presence of impact modifiers leads to tensile properties decreasing while preserving or improving the impact strength. 7 Oksman and coworkers 8-10 also investigated the mechanical properties and morphology of poly(ethylene)/wood flour composites modified with a styrene-ethylene/butylenestyrene triblock copolymer grafted with maleic anhydride (SEBSgMA). They showed that the incorporation of compatibilizer enhanced both tensile strength and impact strength of the resulting composites.…”

Bamboo fibre reinforced biocomposites: A review

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