Performance evaluation of HDPE/MWCNT and HDPE/kenaf composites

Abstract

The present work deals with the microwave-assisted compression moulding of high-density polyethylene (HDPE)-based composites. In the present work, 20 wt% of reinforcement in the form of kenaf and multi-walled carbon nanotube (MWCNT) was used to fabricate HDPE/kenaf and HDPE/MWCNT polymer composites. The mechanical characterizations of the microwave-processed composites were carried out in terms of uniaxial tensile test with different strain rate, multistep stress relaxation, flexural and impact test. The uniaxial tensile test revealed that the tensile modulus of microwave-processed four-layered HDPE/kenaf polymer composite was 35.2% higher than that of HDPE/MWCNT polymer composite. The HDPE/MWCNT polymer composite showed a minimum of 1.25 GPa and a maximum of 4.7 GPa of elastic modulus when tested at different strain rate. The impact energy absorbed by the HDPE/kenaf polymer composite (1.055 J) was 81.12% higher than the HDPE/MWCNT polymer composite (0.582 J).

Fabrication of Kevlar®-reinforced ultra-high molecular weight polyethylene composite through microwave-assisted compression molding for body armor applications

“…The reason for the increase in the load-bearing capacity is due to a stronger phase between the matrix and the reinforcement which further increases the stiffness and modulus value of the composite. 54 A sudden increment of flexural modulus can be seen from UHMWPE/K1 and UHMWPE/K2. This is due to the presence of stacked UHMWPE between two Kevlar V R layers that acts as a Kevlar V R -Kevlar V R adhesive material providing an increase in the Van der Waals forces between the layers of Kevlar V R and UHMWPE bonded inside them.…”

Evaluation of crystallinity, thermal, mechanical and morphological features of high density polyethylene composites reinforced with crosslinked semifluorinated acrylate polymer microspheres

“…[1][2][3] Moreover, HDPE is hardest member of PE family due to its linearity with a little entanglements. 4 Thanks to these superior characteristics, HDPE has a remarkable demand by several industrial sectors to produce many various materials such as daily bottles, boxes, fuel tanks of cars, packaging container, toys, carrier bag, disposable suits, wire coating, cable insulation, pipes etc. 5 Correspondingly, the global production value of HDPE is recorded as roundly 30 million tons per year.…”

Effect of microwave heat treatment on physical and mechanical properties of high-Density polyethylene/wood flour/Nano-SiO2 composites

“…The impact energy absorbed by the HDPE/kenaf polymer composite (1.055 J) was 81.12% higher than the HDPE/MWCNT composite (0.582 J). 37 MHT on oil palm empty fruit bunch (EFB) and glass fiber (GF) was done by Islam et al 38 Then, hybrid composites were made from microwave treated fibers and recycled polypropylene (RPP). They found that microwave-treated fiber-based composites showed improved mechanical and thermal properties compared to untreated ones.…”