scholarly journals Effect of Fungi Isolated from Different Plastic Polluted Sites on Low Density Polyethylene Material Degradation with Reference to SEM Analysis

2020 ◽  
Vol 9 (6) ◽  
pp. 3149-3157
Author(s):  
Jaya Philip ◽  
Tanu ja ◽  
Harshita Michael ◽  
Vanshika Verma ◽  
Anam Rahman
Keyword(s):  
Sem Analysis ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Material Degradation ◽  
Polluted Sites

scholarly journals Rotomolding of Thermoplastic Elastomers Based on Low-Density Polyethylene and Recycled Natural Rubber

2019 ◽  
Vol 9 (24) ◽  
pp. 5430 ◽  
Author(s):  
Ramin Shaker ◽  
Denis Rodrigue
Keyword(s):  
Thermoplastic Elastomers ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Melt Blending ◽  
Material Degradation ◽  
Rubber Content ◽  
Ground Tire Rubber ◽  
The Road ◽  
Processing Cost ◽  
Physical Density

In this study, regenerated and nonregenerated off-the-road (OTR) ground tire rubber (GTR) was blended with low-density polyethylene (LDPE) to produce thermoplastic elastomers (TPE) by rotational molding. In particular, blending was performed by two different methods: melt blending (extrusion) and dry blending (high shear mixer). Then, different GTR concentrations (0, 20, 35, and 50 wt %) were used to determine the effect of rubber content on the processability and properties of the rotomolded compounds. From the samples produced, a complete morphological (optical and scanning electron microscopy), physical (density and hardness), and mechanical (tension, flexion, and impact) characterization was performed. The results showed that increasing the rubber content decreased the mechanical rigidity and strength but increased the elasticity and ductility. Finally, although melt blending led to slightly better properties than dry blending, the latter is more interesting to limit possible material degradation (mechanical, thermal, and oxidative), while reducing processing cost and time.

Extrusion Foaming System for Fabricating Open-Cell Structure of Low Density Polyethylene (LDPE)

2012 ◽  
Vol 550-553 ◽  
pp. 891-896
Author(s):  
Dong Won Jung ◽  
Dong Hong Kim ◽  
Bong Chun Kim ◽  
E. K. Lee ◽  
J. C. Park ◽  
...  
Keyword(s):  
Cell Morphology ◽  
Cell Structure ◽  
Processing Parameters ◽  
Expansion Ratio ◽  
Sem Analysis ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Cell Content ◽  
Open Cell ◽  
Extrusion Foaming

Low Density Polyethylene (LDPE) foam of open-cell type was manufactured through extrusion foaming system using a physical blowing agent for the application of sound absorption. For the purpose of enhancing the open cell content, salt powder was blended with LDPE changing the content and particle size. Scanning electron microscopy (SEM) analysis was carried out in order to observe the cell morphology. With a view to characterizing the open-cell structure, open-cell content and expansion ratio were measured with extruded foams. Finally the effect of formulation and processing parameters on cell morphology was investigated.

Biodegradation of low density polyethylene/starch films exposed to soil burial

2009 ◽  
Vol 34 (1) ◽  
pp. 41-48 ◽  
Author(s):  
Souad Djellalia ◽  
Nassima Benmahmoud ◽  
Tahar Sadoun
Keyword(s):  
Low Density Polyethylene ◽  
Low Density ◽  
Soil Burial ◽  
Starch Films
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