نتایج جستجو برای: density polyethylene ldpe

تعداد نتایج: 437884  

2012
J. E. MARTÍN-ALFONSO C. VALENCIA M. C. SÁNCHEZ

The influence that recycled low-density polyethylene (LDPE) and lithium thickener concentrations exerts on the thermal and rheological properties of lithium lubricating greases was investigated using different rheological techniques in a temperature range of 25–175◦C. In this way, different lubricating grease formulations were manufactured by modifying the concentration of lithium 12-hydroxyste...

2008
A. Giannakas C. G. Spanos P. Xidas K. S. Triantafyllidis A. Ladavos

Polymer-layered silicate nanocomposites have generated great interest due to their improved thermal, mechanical and gas barrier properties compared to conventional composites or neat polymers. Since the surface of most polymers is usually hydrophobic and layered silicate nanoparticles are completely hydrophilic, interactions between them are not favourable. Thus, the first step in the direction...

2005
R. Strapasson

Blends of polypropylene (PP) and low-density polyethylene (LDPE) may contribute to make recycling more economically attractive. The aim of this work was to make PP/LDPE blends (0/100, 25/75, 50/50, 75/25 and 100/0 w/w) via injection molding carried out under various injection temperatures and to evaluate their tensile and impact properties. The blends yielded tensile stress–strain curves very d...

2017
Miguel A. Waldo-Mendoza Zoe V. Quiñones-Jurado Juan C. Pérez-Medina Bernardo Yañez-Soto Pedro E. Ramírez-González

The transformation of fog at a non-visible water layer on a membrane of low-density polyethylene (LDPE) and ethylene-vinyl acetate (EVA) was evaluated. Nonionic surfactants of major demand in the polyolefin industry were studied. A kinetic study using a hot fog chamber showed that condensation is controlled by both the diffusion and permanency of the surfactant more than by the change of the su...

2013
Sajjan Kumar Lal Hari Vasudevan

Injection moulding is one of the most popular polymer processing methods due to its high production rate as well as its ability to produce very intricate geometries at very cheaper cost and within few seconds. There are several flaws which occur while producing plastic parts by Injection moulding, like warpage, shrinkage, flash, sink marks etc. Shrinkage is one of the most critical problems whi...

2010
Witold Brostow Tea Datashvili David Kao

Tribological properties of composites of low density polyethylene (LDPE) reinforced with 1, 5, 10, 20 wt% micrometric Boehmite (B) and/or preheated Boehmite (HB) powders were studied in combination with two silane coupling agents (SCAs): vinyltri(2-methoxyethoxy)silane (VTMES)-SCA 972 and 3-(trimethoxysilyl)-propylmethacrylate (3MPS)-SCA 989. When coupling agents are used, the samples not subje...

Journal: :Scientific Review Engineering and Environmental Sciences 2022

The influence of styrene butadiene rubber (SBR) or low-density polyethylene (LDPE) polymers on the characteristics local asphalt binder was analyzed to characterize rheological properties. results indicated that SBR LDPE increased softening point. point enhanced by around 35% when 9% used in comparison unmodified asphalt, while there a 15% increment used. also decreased penetration rate. decrea...

Journal: :GSC biological and pharmaceutical sciences 2022

Low density polyethylene (LDPE) is used for packaging and other industrial application a significant source of environmental pollution. The present study was aimed at testing the ability bacterial strains identified as Bacillus cereus Pseudomonas aeruginosa to degrade LDPE. These were isolated from soil samples collected dump site. All isolates screened their synthetic produced weight loss perc...

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