نتایج جستجو برای: waste ldpe

تعداد نتایج: 82625  

2001
LUIS CISNEROS-ZEVALLOS MIKAL E. SALTVEIT JOHN M. KROCHTA

White discoloration on peeled carrots is partially due to surface dehydration which can be controlled with hygroscopic coatings: e.g., polyhydric alcohols and salt solutions. This study was performed at 2.5, 7.5, 10, and 157C, using a model system controlling relative humidity at 33, 75 or 98% or a commercial system with low-density polyethylene (LDPE) plastic film bags. The moisture sorption p...

2008
Victor M. Zavala Lorenz T. Biegler

There is substantial economic interest to optimize the operations of low-density polyethylene (LDPE) tubular reactors. Due to the high complexity of these units, systematic optimization techniques need to be used for this. One of the main limitations associated to this is the high dimensionality and complexity of the multi-zone tubular reactor model. In this work, we demonstrate that a simultan...

Journal: :Journal of biomedical materials research. Part A 2004
Viktor N Vasilets Artem V Kuznetsov Viktor I Sevastianov

The effects of vacuum ultraviolet (VUV) treatment on surface chemical composition morphology and albumin adsorption for low-density polyethylene (LDPE) and high-density polyethylene (HDPE) were investigated. The attenuated total reflection-Fourier transform infrared (ATR-FTIR) spectra and contact angle measurements indicated the formation of oxygen-containing polar groups and double bonds under...

Journal: :Periodica Polytechnica Chemical Engineering 2022

Gas chromatography (GC) is an effective tool for the analysis of complex mixtures with a huge number components. To keep tracking chemical changes during processes like plastic waste pyrolysis usually different sample states are profiled, but retention time drifts between chromatograms make comparability difficult. The aim this study to develop fast and simple method eliminate using easily acce...

Journal: Polyolefins Journal 2021

In this work, the compatibility and crystallinity of low density polyethylene (LDPE) and polybutene-1 (PB-1) blends were studied. Various blends of LDPE/PB-1 containing 5, 10 and 20 wt.% PB-1 were prepared in a corotating twin-screw extruder and characterized by scanning electron microscopy (SEM), shear oscillation rheology and wide-angle X-ray diffractometry (WAXD). A matrix-droplet morphology...

Journal: :Heliyon 2023

The objective of this article aims to reduce indoor air pollution through the use ecological fire starter (EFS) made from sawdust and vegetable oils. In Far North region Cameroon, plastic waste is used ignite stoke solid fuels fires, exposing mainly women children who are responsible for cooking health risks pollution. Thus, survey conducted among population shows that 96% urban households plas...

Journal: :تحقیقات نظام سلامت 0
علی محمد ابراهیمی کارشناس ارشد، رشته علوم و صنایع غذایی، دانشگاه صنعتی اصفهان، اصفهان، ایران ناصر همدمی استادیار، عضو هیئت علمی گروه علوم و صنایع غذایی، دانشگاه صنعتی اصفهان، اصفهان، ایران گلنوش مدنی کارشناس ارشد بیوتکنولوژی، مرکز تحقیقات امنیت غذایی و گروه علوم و صنایع غذایی، دانشکده تغذیه و علوم غذایی، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

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...

Journal: :علوم و تکنولوژی پلیمر 0
حسین علی خنکدار احمد اسدی نژاد احمد یاوری سید حسن جعفری

0

Journal: :Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 2021

In the past two decades number of studies have been reported on use thermoplastics as a substrate for 3D printed patch antennas. However, no work has thermoplastic-thermosetting composite-based antennas and their mechanical, morphological, rheological, radiofrequency (RF) characterization sensing applications. this study low-density polyethylene (LDPE) LDPE-5% bakelite (BAK) antenna (resonating...

Journal: :Journal of geology, geography and geoecology 2022


 Currently, society and industry are developing at a rapid pace, an increas- ingly serious problem of the modern world is environmental pollution, requiring recycling reuse wastes. Modern technologies in field road construction involve use polymeric materials obtained from waste recycling. Almost nothing known about soil contamination by plastic general destruction roads particular; proba...

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