Effect of Poly (Propylene-g-maleic Anhydride) on the Morphological, Rheological, and Mechanical Properties of PP/HDPE Blend

Abstract

In this study, the morphological, rheological, and mechanical properties of PP/HDPE blend compatibilized with poly (propylene-g-maleic anhydride) were studied. Necessary blends were prepared using a counter current twin-screw extruder. The blend composition ranged from 10 to 50 wt% of dispersed phase (HDPE) and compatibilizer (MAPP) with two Concentration ranges 10, 20 wt% were used for PP/HDPE (80/20) blend with respect to the dispersed phase (HDPE). The results of morphological studies shows a droplet dispersion morphology in the composition to 50wt% HDPE content, which indicates that HDPE forms a dispersed phase and PP forms a continuous phase in these composition region. Addition of the MAPP compatibilizer decreases the dispersed phase diameter. Rheological studies show that addition of the MAPP compatibilizer increases the melt viscosity, complex viscosity, storage, and loss modulus of the blends. Mechanical studies show that with increasing of HDPE concentration the tensile and impact strength first increase, and then decrease. The elongation at break decreases with increasing of HDPE concentration. Addition of the MAPP compatibilizer increases the elongation at break, tensile, and impact strength.

Effect of Different Blend Ratios and Compatibilizer on Tensile Properties of Recycled Poly(propylene)/Recycled High Density Polyethylene Blends

“…From the result obtained, the compatibilized rPP/rHDPE blends shows improvement in tensile strength around 8.5% compared to uncompatibilized blends. The similar result also found by Ramazani et al ., in their study using effect of poly(propylene)‐grafted‐maleic anhydride on the morphological, rheological and mechanical properties of PP/HDPE blend.…”

Thermal and mechanical properties of PP/HDPE/wood powder and MAPP/HDPE/wood powder polymer blend composites

“…Theoretically, blends of PP and HDPE should provide blends with improved impact strength. However, due to the difference between the melting temperatures of PP and HDPE, blending of the two polymers results in immiscible blends with poor physical and mechanical properties [6][7][8][9][10][11][12][13]. For this reason, a compatibilizer is often used to promote compatibility between the two polymers [8].…”

“…Natural fibres are also used as polymer fillers due to their properties such as low density, biodegradability, recyclability and their abundance [10][11][12]. Most polymers are incompatible with natural fillers, and compatibilizers such as maleated PP (MAPP) are used to promote interfacial adhesion between the polymer and natural fillers, resulting in polymer composites with better properties [8,13,14].…”

Enhancing the mechanical, morphological, and rheological behavior of polyethylene/polypropylene blends with maleic anhydride‐grafted polyethylene

“…This is in line with the positive contribution given by MAPE, which in this case was assumed to be stabilized at the interface, thus hindering minor phase particles coalescence and favoring a more pronounced breakup of the droplets by the shear force, during the melt blending process. [ 29,30 ] Compared to the research studies of Teslios et al, [ 25 ] as well as Ramazani et al, [ 26 ] this work reports two new and original features: quantification of minor phase average diameter and estimation of droplet diameter distribution.…”

“…Similarly, Ramazani et al exploited the functionality of MAPP to increase the morphological, mechanical, and rheological properties of a PP/PE blend rich in PP. [ 26 ] Good results demonstrated the positive compatibilization effect of MAPP.…”