Effect of degrading yellow oxo-biodegradable low-density polyethylene films to water quality

Requejo, Benedict A.; Pajarito, Bryan B.

doi:10.1088/1757-899x/201/1/012004

IOP Conf. Ser.: Mater. Sci. Eng.

2017

DOI: 10.1088/1757-899x/201/1/012004

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Effect of degrading yellow oxo-biodegradable low-density polyethylene films to water quality

Benedict A. Requejo

Bryan B. Pajarito

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2019

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“…This inapplicability for composting was also previously declared by Camann et al [14]. Requejo and Pajarito [15] studied LDPE oxo-biodegradable films in water. The monitored parameters include pH level, total dissolved solids, and oxidationreduction potential.…”

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Thermal Response and Degressive Reaction Study of Oxo-Biodegradable Plastic Products Exposed to Various Degradation Media

Al–Salem

Al-Nasser

Behbehani

et al. 2019

International Journal of Polymer Science

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In this work, three plastic film products commonly used as commodity thermoplastic articles were analysed with the aim of characterizing their thermal behaviour and stability. The test specimens were subjected to a series of analytical tests to confirm their biodegradable nature. The specimens ranged between 30 and 70 μm in thickness and showed high concentrations of regulated metals, namely, lead (Pb), postchemical analysis which can lead to its migration to natural sinks. The specimens were also exposed to degressive media, namely, accelerated (UV induced) weathering and soil burial field testing. The weight loss measured exceeded 58% after soil burial indicating deterioration under natural environmental stressors. In addition, the thermal characterization campaign executed with the aim of determining the product’s thermal response followed internationally recognised experimental protocols for the determination of thermal stability. The methodology used followed the International Confederation for Thermal Analysis and Calorimetry (ICTAC) recommendation for thermal stability and the computation of kinetic parameters. The degradation reaction kinetics were also determined postexposure to degressive media. Thermogravimetric analysis coupled with differential scanning calorimetry heat flow analysis and Fourier infrared spectroscopy results was also used in studying the degradation behaviour of the specimens. Analytical kinetic estimation methods relying on model free solutions enabled the determination of the apparent activation energy (Ea) of the specimens postexposure to degradation media. A shift in the degradation mechanism was also detected after studying the kinetic parameters which showed a range of Ea between 86.64 and 226.90 kJ mol-1 depending on the type of specimens and exposure media. It can be concluded that the oxo-biodegradable films are well suited for thermal treatment in the future as discarded plastic solid waste (PSW) articles. This work also paves the way for developing national standards and future plans for societies burdened with PSW accumulation.

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confidence: 53%

Thermal Response and Degressive Reaction Study of Oxo-Biodegradable Plastic Products Exposed to Various Degradation Media

Al–Salem

Al-Nasser

Behbehani

et al. 2019

International Journal of Polymer Science

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Effect of degrading yellow oxo-biodegradable low-density polyethylene films to water quality

Cited by 1 publication

References 9 publications

Thermal Response and Degressive Reaction Study of Oxo-Biodegradable Plastic Products Exposed to Various Degradation Media

Thermal Response and Degressive Reaction Study of Oxo-Biodegradable Plastic Products Exposed to Various Degradation Media

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