Mechanical properties of rCB-pigment masterbatch in rLDPE: The effect of processing aids and water absorption test

Abstract Homogenization of pigment is the key to coloring a plastic product evenly. In this article, tensile properties recovered carbon black merge with low molecular weight lubricants and other compounding ingredients in form masterbatch (PM) added recycled low-density polyethylene (rLDPE) resin were evaluated. The prepared varying amount types processing aids (A B) was first compounded using heated two-roll mill. Subsequently, manually mixed rLDPE put through an injection molding machine for shaping process produce composite (PMC). test performed on samples evaluate mechanical PMC. Meanwhile, melt flow index executed justify characteristics. Fourier-transform infrared spectroscopy analysis scanning electron microscopy also carried out analyze PM PMC chemical their constructed surface morphology. Besides, X-ray diffraction determine changes degree crystallinity before after water absorption test. addition has slightly increased matrix properties. While, usage more aid B turned secure better compared higher A Interestingly, all composites enhanced, suggesting that stronger bond formed during immersion period.