Results 41 to 50 of about 947,617 (412)

Influence of Microplastics on the Growth and the Intestinal Microbiota Composition of Brine Shrimp

open access: yesFrontiers in Microbiology, 2021
Microplastics (MPs) are ubiquitous in the aquatic environment and can be frequently ingested by zooplankton, leading to various effects. Brine shrimp (Artemia parthenogenetica) has an important role in the energy flow through trophic levels in different ...
Hongyu Li   +10 more
doaj   +1 more source

Evaluation of photodegradation in LDPE/modified starch blends

open access: yesPolímeros, 2009
Photodegradation of LDPE/modified starch blends 80/20 m/m has been examined by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and X ray diffraction (DRX) before and after exposure to ultraviolet radiation (UV). Samples
Flávia G. D. Ferreira   +3 more
doaj   +1 more source

A Theoretical Study on Crystallization of Polyethylene Using Modified Weighted Density Approximation (MWDA) [PDF]

open access: yes, 2015
In this article, the crystallization of Polyethylene is investigated by the modified weighted density approximation. Also a direct correlation function of Polyethylene based on the RISM theory is used. The free energy of a Polyethylene is calculated using density functional theory.
arxiv   +1 more source

Under-liquid Self-Assembly of Submerged Buoyant Polymer Particles [PDF]

open access: yesLANGMUIR Volume: 32 Issue: 23 Pages: 5714-5720 Published: JUN 14 2016, 2017
The self-assembly of submerged cold-plasma-treated polyethylene beads is reported. The plasma-treated immersed millimetrically-sized polyethylene beads formed well-ordered 2D quasi-crystalline structures. The submerged floating of light polyethylene beads is possible due to the energy gain achieved by the wetting of the high-energy plasma-treated ...
arxiv   +1 more source

Role of the intestinal microbiome in low-density polyethylene degradation by caterpillar larvae of the greater wax moth, Galleria mellonella

open access: yesProceedings of the Royal Society B, 2020
Recently, a few insects, including the caterpillar larva of the greater wax moth Galleria mellonella, have been identified as avid ‘plastivores’. These caterpillars are able to ingest and metabolize polyethylene at unprecedented rates.
B. Cassone   +4 more
semanticscholar   +1 more source

Biodiesel permeability in polyethylene [PDF]

open access: yesPolymer Testing, 2012
This paper reports solubility and diffusivity data for soy and rapeseed methyl esters in polyethylene together with comparisons with methyl oleate and linoleate. These data showed that there is no significant difference in diffusivity and solubility between all these penetrants.
Richaud, Emmanuel   +2 more
openaire   +5 more sources

Tendências tecnológicas de polietilenos e polipropileno através da prospecção em documentos de patente nos Estados Unidos e Europa - 1990/1997 Technological trends for polyethylene and polypropylene through the study of patent documents in the United States and Europe - 1990/1997

open access: yesPolímeros, 2000
O presente artigo fornece uma avaliação estratégica da tecnologia de produção de polímeros à base de etileno, principalmente o polietileno, bem como dos polímeros a base de propileno, principalmente o polipropileno, mostrando a tendência em relação a ...
Adelaide M. S. Antunes   +3 more
doaj   +1 more source

Transcrystallization at the interface of polyethylene single-polymer composites [PDF]

open access: yesMaterials Research, 1999
The phenomenon of transcrystallization was studied at the interface of UHMWPE fibers embedded in an HDPE matrix. It was hoped that epitaxial crystallization in such model composites could eventually be used to improve adhesion between these high-strength
H.-J. Kestenbach, J. Loos, J. Petermann
doaj   +1 more source

Enhancing thermal conductivity of bulk polyethylene along two directions by paved crosswise laminate [PDF]

open access: yesCHIN. PHYS. LETT. Vol. 38, No. 1 (2021) 014401, 2016
Recently, some reports show that the ultra-low thermal conductivity of bulk polymers can be enhanced along one direction, which limits its applications. Here, we proposed paved crosswise laminate methods which can enhance the thermal conductivity of bulk polyethylene (PE) along two directions.
arxiv   +1 more source

Properties and optimal manufacturing conditions of chicken feathers thermoplastics biocomposites [PDF]

open access: yes, 2015
The aim of this study was the analysis and characterization of composites based on thermoplastics (ethylene vinyl acetate, polypropilene and high-density polyethylene) and chicken feathers.
Carrillo Navarrete, Fernando   +3 more
core   +2 more sources

Home - About - Disclaimer - Privacy