scholarly journals Recycling of high impact polystyrene and low-density polyethylene plastic wastes in lightweight based concrete for sustainable construction

Author(s):  
Oluwarotimi Olofinnade ◽  
Sarath Chandra ◽  
Paromita Chakraborty
2019 ◽  
Vol 26 (1) ◽  
pp. 1-15
Author(s):  
Babatunde I. Aderiye ◽  
Richard O. Akinyeye ◽  
Adebisi Sulaimon ◽  
Olusola A. Oluwole ◽  
Fayokemi J. Kehinde ◽  
...  

Author(s):  
Vyshnavi V. Rao ◽  
Sonashree R. ◽  
Rashmi R. Halbavi

Plastics are the most commonly used polymers for conventional applications. Plastic wastes accumulating the environment are presenting an ever-increasing ecological threat. Low density polyethylene is major cause of long-term environmental pollution. An eco-friendly approach to resolve this ever-growing persistent menace is bioremediation. The diverse metabolic capability of microbes can be effectively exploited for breakdown of plastic wastes. Another approach is to synthesise biodegradable or organic plastics which is soluble in the natural environment. There are several advantages associated with these biodegradable plastics or plastic degrading microbes. They can be composted with organic wastes and returned to enrich the soil. Their use will not only reduce stress and loss of habitat of wild animals caused by dumping of conventional plastics but will also lessen the labor expenses for the removal of plastic wastes in the environment because they degrade naturally. This review describes bioremediation/biodegradation process, production, types of and advantages of bioplastics.


2005 ◽  
Vol 13 (3) ◽  
pp. 313-320
Author(s):  
J. Pospíšil ◽  
D. Michálková ◽  
I. Fortelný ◽  
Z. Kruliš ◽  
M. Šlouf

Mechanical recycling emerged among other plastics recycling approaches as a profitable method. Its feasibility has enhanced by understanding of reasons of lower mechanical properties of aged materials in comparison with virgin materials, and by a proper exploitation of the knowledge of compatibilization and stabilization additives for upgrading of reused materials. This study deals with low density polyethylene (LDPE). Impact strength of recycled or pre-aged (recyclate model) LDPE / high-impact polystyrene (HIPS) blends compatibilized with styrene-butadiene copolymer / ethylene-propylene elastomer was enhanced and fineness of the phase structure of the system was improved by using N,N'-disubstituted 1,4-phenylenediamine co-additives. Mechanism of the strong synergistic compatibilization effect was explained by LDPE grafting with styrene-butadiene copolymer mediated by the bifunctional amine additive.


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