scholarly journals Preparation and properties of low density polyethylene-activated carbon composite foams

Author(s):  
Darunee Aussawasathien ◽  
Kotchaporn Jariyakun ◽  
Thongchai Pomrawan ◽  
Kittipong Hrimchum ◽  
Rungsima Yeetsorn ◽  
...  
2020 ◽  
Vol 4 (7) ◽  
pp. 3687-3700
Author(s):  
Dengle Duan ◽  
Yayun Zhang ◽  
Hanwu Lei ◽  
Moriko Qian ◽  
Elmar Villota ◽  
...  

The catalytic co-pyrolysis of Douglas fir and low-density polyethylene with commercial activated carbon catalysts was investigated for the first time.


2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
F. Soriano-Corral ◽  
L. A. Calva-Nava ◽  
J. F. Hernández-Gámez ◽  
E. Hernández-Hernández ◽  
P. González-Morones ◽  
...  

Agave fibers (AF) were incorporated either pristine (AFp) or surface treated by ethylene plasma (AFm) in low-density polyethylene (LDPE)/ethylene vinyl acetate (EVA) blends at a ratio of 1 : 1 and foamed by chemical means. The role of the AF content (3, 6, 9, 12, and 15 wt.%) and its surface modification on the cellular morphology and mechanical properties of LDPE/EVA/AF foams under compression is investigated herein. Fourier transform-infrared spectroscopy, contact angle, and water suspension of AF suggest that plasma treatment using ethylene successfully modifies the surface nature of AF from hydrophilic to hydrophobic. AF and the surface treatment have an important role on the morphological properties of the foams. Composite foams reinforced with 12 wt.% AFm exhibited the highest mechanical properties improvements. At this fiber content, the composite foams enhanced 30% of the compressive modulus and 23% of the energy absorption under compression with respect to the neat polymer blend foam, as a result to the formation of more uniform cells with smaller size and the enhancement of compatibility and spatial distribution of the AFm in the polymer composite foams due to thin clusters of polyethylene-like polymer deposited on the AF surface.


2018 ◽  
Vol 37 (2) ◽  
pp. 55-68 ◽  
Author(s):  
Yao Dou ◽  
Denis Rodrigue

In this work, a simple method is presented to produce ground tire rubber (GTR) -linear low density polyethylene (LLDPE) compounds and foams via rotational molding. In particular, different GTR concentrations (0 to 50% wt.) were dry-blended with different chemical blowing agent (CBA) content (0 to 1% wt.). From the samples produced, a complete set of characterization was performed in terms of mechanical properties (tensile, flexural and impact), density and morphological properties. The results show that increasing GTR content or CBA content not only decreased both tensile and flexural moduli, but decreased ultimate strength and strain at break. As expected, increasing blowing agent content decreased density. Besides, with respect to impact strength, the value of all samples decreased with the addition of GTR or CBA except for 0.2% wt. CBA of GTR-LLDPE composite foams, which nearly remain at the same level.


2002 ◽  
Vol 16 (5) ◽  
pp. 1301-1308 ◽  
Author(s):  
Selhan Karagöz ◽  
Jale Yanik ◽  
Suat Uçar ◽  
Chunshan Song

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