2018
DOI: 10.20937/rica.2018.34.01.12
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Degradation of Conventional and Oxodegradable High Density Polyethylene in Tropical Aqueous and Outdoor Environments

Abstract: Polyethylene is widely used in packaging due to its chemical stability, lightness, impermeability and low cost. However, these properties become questionable when it is discarded. Oxodegradable plastics, which degrade by an abiotic-biotic process, have been promoted as a solution to the pollution caused by plastics. This research assesses the degradability of conventional and oxodegradable high density polyethylene in marine, freshwater, and outdoor tropical environments. Samples of these plastics, with and wi… Show more

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Cited by 32 publications
(12 citation statements)
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“…Hence, primary microplastics are already on a millimeter size scale when they reach aquatic environments. Secondary microplastics, on the other hand, are formed from larger floating plastic fragments as a result of fragmentation in the environment (Arias-Villamizar & Vazquez-Morillas 2018, Cooper & Corcoran 2010; fragmentation is a main topic in the second part of this review and is discussed in more detail in Section 4.…”
Section: The Genesis Of a Nondegradable Multipurpose Product And Its Entry Into The Marine Environmentmentioning
confidence: 99%
“…Hence, primary microplastics are already on a millimeter size scale when they reach aquatic environments. Secondary microplastics, on the other hand, are formed from larger floating plastic fragments as a result of fragmentation in the environment (Arias-Villamizar & Vazquez-Morillas 2018, Cooper & Corcoran 2010; fragmentation is a main topic in the second part of this review and is discussed in more detail in Section 4.…”
Section: The Genesis Of a Nondegradable Multipurpose Product And Its Entry Into The Marine Environmentmentioning
confidence: 99%
“…This can be attributed to the action of starch and its high water absorption, generating a greater proliferation of microorganisms. Then, the water associated to the polymers, as observed in FTIR (Figure 2), has a significant effect which can contribute biodegradation [79] and which is related to the predisposition to the chemical structure of the bioplastics to attack by microorganisms. Polymers like starch and cellulose are biologically synthesized and can be completely and rapidly biodegraded, either as surface erosion and bulk erosion, by heterotrophic microorganisms in a wide range of natural environment [80] .…”
Section: Surface Morphology By Scanning Electron Microscopy (Sem)mentioning
confidence: 99%
“…Originally designed plastic microbeads, industrially produced particles and powders (<5 mm in diameter) could enter the ocean directly through sewage effluent, which is called primary microplastics [ 57 , 71 ]. When subjected to the combined effects of physical, biological and chemical processes, large plastic fragments are broken down and degraded into tiny fragments, which are secondary microplastics and can be transported to the marine environment [ 72 , 73 , 74 ]. Primary microplastics are widely used in personal hygiene products containing abrasives and scrubs (like toothpastes, hand and facial cleansers; shower gels and air-blasting aids, etc.)…”
Section: Sources and Fates Of Mps In Marine Environmentmentioning
confidence: 99%