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Modeling Comparison Studies for Thermo-Mechanical and other
Properties of RHDPE and RLDPE Wastes |
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recycled waste plastic (recycled high density poly ethylene
RHDPE and recycled low density poly ethylene RLDPE) are exposed
to environmental conditions during the usage for many years ago.
Also the chemical contaminants in the internal composition had
effects on the thermo-mechanical and other properties for these
wastes. Then weathering effect data are examine for both locally
and international wastes on their thermo- echanical and chemical
properties such as (Tensile strength, modulus, elongation,
impact and permeability) respectively. Afterward different
mathematical software models are applied to analysis these
weathering – properties data in order to estimate the more
effective properties that changed by these weathering conditions
such as (concentration of contaminant, time, temperature,
thickness of specimen, length of spectra, basic property). The
results shows that a multi-polynomial model has a best fit for
most or several of properties to active weathering variables,
also gave a vary residual and deviation than experimental
analyzed data for both sources of wastes local and international
RHDPE and RLDPE. Also results of thermo-mechanical and chemical
properties prove that both tensile strength and modulus of
elasticity thermo-mechanical properties and permeability /
length of spectra chemical property were given a high quality of
correction and fitting factor from 93-99 %, with less deviation
and residual function was produced. And analyzed weathering
properties of RHDPE gave a best fit than RLDPE: |
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