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Effect of filler loading and benzyl urea on tensile, water absorption, and morphological properties of recycled high-density polyethylene/ethylene vinyl acetate/calcium carbonate (rhdpe/eva/caco3) composites
Supri, A. G1, Farahana, R. N2, Teh, P. L3.
Coupling of individual properties between recycled high-density polyethylene (rHDPE) and
ethylene vinyl acetate (EVA) blends as polymer matrix which has different chemical structure requires
coupling agent to improve their interfacial adhesion. Therefore, benzyl urea (BU) was examined to
access its potential as the coupling agent in rHDPE/EVA composites. RHDPE/EVA blends with ratio
of 50/50 and different loadings of calcium carbonate (CaCO3) as filler from 0 to 25 phr were prepared
by using melt blending technique Brabender Plasticorder at 190 °C and rotor speed of 50 rpm for 10
minutes. The compatibilization of rHDPE/EVA blends were enhanced by the addition of 6 phr of the
BU. The tensile, water absorption and morphological properties were studied. Tensile properties such
as tensile strength and Young’s modulus were improved while the elongation at break was reduced by
the addition of BU. The water absorption resistance was also improved due to the enhanced interfacial
adhesion and intercalation between rHDPE and EVA as observed from the SEM images.
Affiliation:
- Universiti Malaysia Perlis, Malaysia
- Universiti Malaysia Perlis, Malaysia
- Universiti Malaysia Perlis, Malaysia
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