Characterization of rheological and thermophysical properties of HDPE-wood composite

2014 ◽  
Vol 131 (13) ◽  
pp. n/a-n/a ◽  
Author(s):  
Mosfafa Tazi ◽  
Fouad Erchiqui ◽  
François Godard ◽  
Hamid Kaddami ◽  
Abdellah Ajji
Keyword(s):  
Thermophysical Properties ◽  
Wood Composite

scholarly journals Effect of Wood Fillers on the Viscoelastic and Thermophysical Properties of HDPE-Wood Composite

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
M. Tazi ◽  
M. S. Sukiman ◽  
F. Erchiqui ◽  
A. Imad ◽  
T. Kanit
Keyword(s):  
Polymer Composites ◽  
Thermophysical Properties ◽  
High Density Polyethylene ◽  
Viscoelastic Behavior ◽  
Wood Composite ◽  
Materials Behaviors ◽  
Wood Polymer ◽  
Wood Particles ◽  
Wood Polymer Composites

Wood polymer composites (WPC) have well proven their applicability in several fields of the plasturgy sector, due to their aesthetics and low maintenance costs. However, for plasturgy applications, the characterization of viscoelastic behavior and thermomechanical and thermophysical properties of WPC with the temperature and wood filler contents is essential. Therefore, the processability of polymer composites made up with different percentage of wood particles needs a better understanding of materials behaviors in accordance with temperature and wood particles contents. To this end, a numerical analysis of the viscoelastic, mechanical, and thermophysical properties of composite composed of high density polyethylene (HDPE) reinforced with soft wood particles is evaluated.

scholarly journals Experimental Characterization of Phase Change Materials for Refrigeration Processes

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3033
Author(s):  
Anastasia Stamatiou ◽  
Lukas Müller ◽  
Roger Zimmermann ◽  
Jamie Hillis ◽  
David Oliver ◽  
...  
Keyword(s):  
Energy Density ◽  
Phase Change ◽  
Thermophysical Properties ◽  
Phase Change Materials ◽  
Cost Effective ◽  
Latent Heat Storage ◽  
Lower Energy Density ◽  
Change Material ◽  
Storage Units

Latent heat storage units for refrigeration processes are promising as alternatives to water/glycol-based storage due to their significantly higher energy densities, which would lead to more compact and potentially more cost-effective storages. In this study, important thermophysical properties of five phase change material (PCM) candidates are determined in the temperature range between −22 and −35 °C and their compatibility with relevant metals and polymers is investigated. The goal is to complement existing scattered information in literature and to apply a consistent testing methodology to all PCMs, to enable a more reliable comparison between them. More specifically, the enthalpy of fusion, melting point, density, compatibility with aluminum, copper, polyethylene (PE), polypropylene (PP), neoprene and butyl rubber, are experimentally determined for 1-heptanol, n-decane, propionic acid, NaCl/water mixtures, and Al(NO3)3/water mixtures. The results of the investigations reveal individual strengths and weaknesses of the five candidates. Further, 23.3 wt.% NaCl in water stands out for its very high volumetric energy density and n-decane follows with a lower energy density but better compatibility with surrounding materials and supercooling performance. The importance of using consistent methodologies to determine thermophysical properties when the goal is to compare PCM performance is highlighted.

THERMOPHYSICAL PROPERTIES CHARACTERIZATION OF MoS2/H2O-EG FOR HEAT TRANSFER APPLICATIONS

2021 ◽  
Author(s):  
Felipe Silva dos Santos ◽  
Edwin Martin Cardenas Contreras ◽  
ENIO BANDARRA FILHO
Keyword(s):  
Heat Transfer ◽  
Thermophysical Properties ◽  
Properties Characterization

Morphological Characterization of Wax and Surfactant–Encapsulated Microcrystalline Cellulose for Better Dispersion

2020 ◽  
Vol 70 (2) ◽  
pp. 226-231
Author(s):  
Qingzheng Cheng ◽  
Chengfeng Zhou ◽  
Yuanfeng Pan ◽  
Brian Via
Keyword(s):  
Microcrystalline Cellulose ◽  
Morphological Characterization ◽  
Fiber Bundles ◽  
Wood Composite ◽  
Differential Interference Contrast ◽  
Expensive Equipment ◽  
Fine Tune ◽  
Cellulose Composite ◽  
Dic Microscopy

Abstract Encapsulation of cellulose with wax and surfactant is a physical way to restrict cellulose-to-cellulose attraction. Because wax is often used in the wood composite process, industrial manufacturers would not have to upgrade or add expensive equipment to handle cellulose addition. The encapsulated cellulose particles could easily be transported to composite and polymer facilities and blended in a homogeneous fashion for a multitude of products and composites. It was the objective of this study to utilize differential interference contrast (DIC) microscopy to characterize the wax and surfactant coverage and encapsulation morphology of the wax–surfactant–cellulose composite. The lengths and widths of the cellulose particles were significantly changed after encapsulation. DIC microscopy found that we could fine-tune wax coverage to control homogeneity and reduce fiber bundling during dispersion. It was found that surfactants were not necessary to enhance coverage if a 1:4 ratio of wax to microcrystalline cellulose was used. However, if more wax is desired, then surfactants may be necessary to suppress fiber bundles during dispersion.

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