Characterisation and Performance of Low-Density Poly Ethylene-Corn Flour Composites

Abstract

This study aims to investigate the effects of corn flour fillers on the mechanical and thermal properties and surface morphology of low-density polyethylene composites. Low-density polyethylene (LDPE) and low density polyethylene/corn flour (LDPE/CF) with different loadings of CF (5%-20% w/w) were prepared in an internal mixer type Z-Blade mixer at 190°C and rotor speed of 50 rpm. Dynamic mechanical analysis (DMA), Thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and tensile tests were analysed to investigate thermal and mechanical properties. Tensile tests displayed an increase in the tensile strength and modulus with the increase of CF loadings. The results of DMA tests showed significant improvements for the storage modulus and glass transition temperature, Tg. The results of TGA indicated that the addition of higher amounts of CF enhanced thermal stability.

Development of biochar/HDPE composites and characterization of the effects of carbon loadings on the electromagnetic shielding properties

“…The production of sugar from sugarcane has the main byproduct of bagasse. The production of biochar from these and the like agricultural and agro-industry wastes should be the prior choice for different value-adding applications [ 28 , 29 ]. Maize cob residues contain the main constituent of lignocellulose materials (76.7 %); cellulose and lignin (14.7 %), extractive contents (7 %), and ash around (1.6 %) [ 27 ].…”

Swelling, Thermal and Mechanical Characterizations of High-Density Polyethylene/ Recycled Biochar Composites

“…The performance of natural filler in composite materials can be enhanced to achieve appropriate materials regarding durability, thus being more economical than synthetic fillers composites. In addition, these natural fillers provide composites' stiffness and strength and enhance superior chemical and mechanical properties (1)(2)(3)(4). High-density polyethylene, medium density polyethylene, lowdensity polyethylene polymers are commonly utilized to produce flexible films and laminates for bags, rigid containers, pipe extrusion, and injection molding of various objects (5).…”

“…High-density polyethylene, medium density polyethylene, lowdensity polyethylene polymers are commonly utilized to produce flexible films and laminates for bags, rigid containers, pipe extrusion, and injection molding of various objects (5). The advantages of HDPE are characterized by high shrinkage, simple molding, and excellent melt strength (6)(7)(8)(9)(10)(11). Biochar can be considered neutral carbon or a negative material that may play an essential role in industrial and construction applications.…”

Mechanical and thermal characterisations of low-density polyethylene/nanoclay composites

“…Polymer nanocomposites have been widely used in several applications as industrial, construction, and medical sectors accroding to their excellent chemical, physical, and mechanical properties. 1-4 Polymer nanocomposites consist of nano-sized fillers, show superior properties at a lower loading than conventional composites. 4 Low-density polyethylene (LDPE) is a commodity polymer, cheap, versatile, with wide uses in a variety of forms such as plastic packages.…”