scholarly journals Effectiveness of high‐density polyethylene container and Super Grain Bag for the storage system of cowpea grain for smallholder farmers

2020 ◽  
Author(s):  
Lucas D. Tivana ◽  
Rafael J. Nguenha ◽  
Paula Viola ◽  
Isabel Monjane ◽  
Olipa Lungu ◽  
...  
Keyword(s):  
High Density Polyethylene ◽  
Smallholder Farmers ◽  
Storage System ◽  
High Density ◽  
Polyethylene Container

Safety evaluation of different acids in high-density polyethylene container loading

2020 ◽  
Vol 63 ◽  
pp. 103991
Author(s):  
Bin Laiwang ◽  
Shang-Hao Liu ◽  
Jen-Hao Chi ◽  
Mao-Sen Wen ◽  
Chi-Min Shu
Keyword(s):  
High Density Polyethylene ◽  
Safety Evaluation ◽  
High Density ◽  
Container Loading ◽  
Polyethylene Container

scholarly journals A high-density polyethylene container based on ZnO/lignin dual fillers with potential antimicrobial activity

2019 ◽  
Vol 73 ◽  
pp. 51-59 ◽  
Author(s):  
Łukasz Klapiszewski ◽  
Karol Bula ◽  
Anna Dobrowolska ◽  
Katarzyna Czaczyk ◽  
Teofil Jesionowski
Keyword(s):  
Antimicrobial Activity ◽  
High Density Polyethylene ◽  
High Density ◽  
Polyethylene Container ◽  
Potential Antimicrobial Activity

Composition and Surface Topography Effects on Apatite-Forming Ability of Ceramic-Polymer Composites

2003 ◽  
Vol 774 ◽  
Author(s):  
Susan M. Rea ◽  
Serena M. Best ◽  
William Bonfield
Keyword(s):  
Surface Topography ◽  
High Density Polyethylene ◽  
High Density ◽  
Apatite Layer ◽  
Biologically Active ◽  
Human Blood Plasma ◽  
Apatite Formation ◽  
Polyethylene Matrix ◽  
Composite Surface ◽  
X Ray

AbstractHAPEXTM (40 vol% hydroxyapatite in a high-density polyethylene matrix) and AWPEX (40 vol% apatite-wollastonite glass ceramic in a high density polyethylene matrix) are composites designed to provide bioactivity and to match the mechanical properties of human cortical bone. HAPEXTM has had clinical success in middle ear and orbital implants, and there is great potential for further orthopaedic applications of these materials. However, more detailed in vitro investigations must be performed to better understand the biological interactions of the composites and so the bioactivity of each material was assessed in this study. Specifically, the effects of controlled surface topography and ceramic filler composition on apatite layer formation in acellular simulated body fluid (SBF) with ion concentration similar to those of human blood plasma were examined. Samples were prepared as 1 cm × 1 cm × 1 mm tiles with polished, roughened, or parallel-grooved surface finishes, and were incubated in 20 ml of SBF at 36.5 °C for 1, 3, 7, or 14 days. The formation of a biologically active apatite layer on the composite surface after immersion was demonstrated by thin-film x-ray diffraction (TF-XRD), environmental scanning electron microscopy (ESEM) imaging and energy dispersive x-ray (EDX) analysis. Variations in sample weight and solution pH over the period of incubation were also recorded. Significant differences were found between the two materials tested, with greater bioactivity in AWPEX than HAPEXTM overall. Results also indicate that within each material the surface topography is highly important, with rougher samples correlated to earlier apatite formation.

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