Polyethylene wax was obtained from pyrolysis experiments on Low Density (LDPE) wastes using a muffle furnace in inert condition. 60 – 80% of the initial mass were as heating added at rate 10oC/min. Operating conditions for reaction 400 450oC over time 30 50min and effects these parameters discussed. Using Friedman’s iso-conversional model, kinetic - activation energy, pre-exponential factor fre...

A bipolar charge transport model is employed to investigate the remarkable reduction in dc conductivity of low-density polyethylene (LDPE) based material filled with uncoated nanofillers (reported in the first part of this work). The effect of temperature on charge transport is considered and the model outcomes are compared with measured conduction currents. The simulations reveal that the cont...

This paper presents the results of experimental and analytical studies mechanical thermal properties laterite composites mixed with reprocessed low-density polyethylene waste (LDPE), calcium phosphate (CaP) phosphogypsum wastes, biochar to form brick composites. Bricks mixtures 20% by volume LDPE, 15% CaP, gypsum were shown have excellent compressive strength, flexural fracture toughness. The 1...

This paper reports the principal discoveries which have played a major role in the polyolefin field and have positioned polyolefins as the most produced plastics. The early development of polyolefins covering the production of LDPE (Low density polyethylene) at ICI (Imperial Chemical Industries) and the discovery of Phillips or Ziegler-Natta catalysts are highlighted in the first section. In th...

Antibacterial properties of TiO2, ZnO as well as mixed TiO2-ZnO nanoparticles coated low density polyethylene films on Staphylococcus aureus PTCC1112 were investigated. Bactericidal efficiency of 0.5, 1 and 2 Wt% for TiO2 and ZnO nanoparticles and also 1 Wt% mixed TiO2-ZnO nanoparticles with TiO2:ZnO ratios of 25:75, 50:50 and 75:25 were tested under UV and fluorescent lights exposure at two di...

Abstract Plastisphere is a term for any microbial community that grow and develop on the surface of plastic. There was still lot plastics readily disposed in landfills, which would makes it feasible to discover bacteria could decompose plastic be used bioremediation. The present study aims determine number density (colonies) obtainining (bacteria, fungi) isolates from four different types namel...

In this work, we present a general nonlinear model predictive control (NMPC) framework for low-density polyethylene (LDPE) tubular reactors. The framework is based on a first-principles dynamic model able to capture complex phenomena arising in these units. We first demonstrate the potential of using NMPC to simultaneously regulate and optimize the process economics in the presence of persisten...

Abstract Graphene Oxide (GO) was added to Low-Density Polyethylene (LDPE) test the mechanical properties of compound. Compared other types polyethylene, LDPE provides a good balance and processability, which leads its being chosen as research’s matrix material. This experiment aims prepare LDPE/GO through melt mixing technique analyse tensile strength/tensile elongation composite based on GO co...