The modified atmosphere packaging technique was explored in order to investigate the changes of passion fruit quality during low temperature storage. Three different types of packaging condition were used in this experiment. They were (i) P-UAP, a perforated low density polyethylene (LDPE), (ii) MAP-1, a LDPE with an oxygen transmission rate (OTR) of 1400016000 cm3/m2∙day∙atm, and (iii) MAP-2, ...

We present a moving horizon estimation (MHE) application for multi-zone low-density (LDPE) polyethylene tubular reactors. The strategy incorporates a first-principles dynamic model comprised of large sets of nonlinear partial, differential and algebraic equations (PDAEs). It was found that limited temperature measurements distributed along the reactor are sufficient to infer all the model state...

This paper investigates some mechanical and rheological properties of low density polyethylene (LDPE) composites reinforced by multi-walled carbon nanotubes (MWNTs). It was found that the Young’s modulus and tensile strength of the composites can increase by 89% and 56%, respectively, when the nanotube loading reaches 10 wt%. The curving and coiling of MWNTs play an important role in the enhanc...

abstract background: processes such as drying, sauce making, extracting and doping reduced nutritional value and unique sensory characteristics of pomegranate. on the other hand, the difficulty in peeling and removing the arils has limited its fresh consumption. for this reason, the “ready-to-eat” pomegranate may represent a possible option to implement fresh fruit consumption. in this study, t...

Cellulose nanocrystals (CNCs), a class of renewable bionanomaterials with excellent mechanical properties, have gained major interest as filler for polymers. However, challenges associated with effective CNC dispersion have hindered the production of composites with desired property enhancements. Here, composites of polypropylene (PP) and low density polyethylene (LDPE) with 5e10 wt% unmodified...

The potential utilization of melamine impregnated paper (MIP) waste in thermoplastic composites was investigated. Composites were also manufactured utilizing wood flour (WF) at the same filler rates for comparison. using a compression molding method. effects type and rate on mechanical properties low-density polyethylene (LDPE)-based evaluated. Mechanical properties, such as tensile flexural st...

Unrestrained utilization of plastic has reached an intemperate state, menacing environment and human lives. The preliminary focus this research was to investigate divulge the contemporary status microplastics (MPs) in commercialized open pan salts from Cox's Bazar Maheshkhali channels. A total 27 samples were obtained. analyzed for prevalence MPs by FTIR Raman spectroscopy (RS); prevailing amou...

Solid object recognition and classification has been an area of interest with the increasing environmental and economic concerns. Our work mainly concentrates on identification of bottles and classifying the same into one of several categories, like glass, metal, polystyrene, and low density polyethylene (LDPE). Using a combination of several standard image processing techniques like Principle ...

This study aimed to establish primary reactions and identify gaseous products during fast pyrolysis of low-density polyethylene (LDPE), polypropylene (PP) polystyrene (PS). Fast was performed by using Py-GC/MS/FID at 574 ± 22 °C for 5 s. Gaseous fractions formed LDPE, PP PS were 14 1 wt%, 31 3 wt% 103 12 respectively. The main compounds from LDPE butane, 1-pentane 1-hexene. gave propene, pentan...

In recent years, application of nanotechnology in the food packaging industry has become more widespread and is progressively being commercialized. Adding nano-materials improves polymers` barrier properties for gases such as O2 and Co2, and increases UV rays barrier, mechanical strength, stiffness, stability, and heat resistance of the base polymer. In this study, low density polyethylene film...