Aerobic biodegradation of calcium carbonate filled polyethylene film containing pro-oxidant additives

Husárová, Lucie; Machovský, Michal; Gerych, Pavel; Houser, Josef; Koutný, Marek

doi:10.1016/j.polymdegradstab.2010.05.009

Cited by 28 publications

(14 citation statements)

References 14 publications

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“…Husarova et al [21] observed that the presence of CaCO 3 as an additive greatly increased the CO 2 accumulation in glass containers, but did not enhance the abiotic degradation of the films. This could also occur in our experiments, since calcium was detected in the PEþAD samples according to Section 2.1.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of the rate of abiotic and biotic degradation of oxo-degradable polyethylene

Portillo¹,

Yashchuk

Hermida

2016

Polymer Testing

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Section: Discussionmentioning

confidence: 99%

Evaluation of the rate of abiotic and biotic degradation of oxo-degradable polyethylene

Portillo¹,

Yashchuk

Hermida

2016

Polymer Testing

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“…Exploitation of prooxidants as blended in polyethylene formation make it further susceptible to microbial deterioration. Husarova et al (2010a) investigated biodegradation of calcium carbonate (prooxidant) containing LDPE. They found that prooxidant containing LDPE degraded (carbon mineralization) 16% in 80 days, while samples that did not contain any prooxidant were mineralized 7% in 13 months under soil and 23% in compost conditions.…”

Section: Polyethylenementioning

confidence: 99%

Review on the current status of polymer degradation: a microbial approach

Pathak

Bithel

2017

Bioresour. Bioprocess.

599

241

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Inertness and the indiscriminate use of synthetic polymers leading to increased land and water pollution are of great concern. Plastic is the most useful synthetic polymer, employed in wide range of applications viz. the packaging industries, agriculture, household practices, etc. Unpredicted use of synthetic polymers is leading towards the accumulation of increased solid waste in the natural environment. This affects the natural system and creates various environmental hazards. Plastics are seen as an environmental threat because they are difficult to degrade. This review describes the occurrence and distribution of microbes that are involved in the degradation of both natural and synthetic polymers. Much interest is generated by the degradation of existing plastics using microorganisms. It seems that biological agents and their metabolic enzymes can be exploited as a potent tool for polymer degradation. Bacterial and fungal species are the most abundant biological agents found in nature and have distinct degradation abilities for natural and synthetic polymers.

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“…The results showed that all HDPE films containing CaCO 3 were degraded more slowly than HD3 film after photo-oxidation. This may be due to thermal stabilization effect of CaCO 3 filler [8]. Similarly, Rui Yang [9] studied the thermal oxidation of composites of polyethylene and inorganic fillers such as diatomite, kaolin, calcium carbonate, talc, mica, wollastonite...and also found that CaCO 3 filler retarded the thermal oxidation of HDPE.…”

Section: Mechanical Propertiesmentioning

confidence: 96%

EFFECT OF CaCO3 FILLER ON THE DEGRADATION OF HIGH DENSITY POLYETHYLENE (HDPE) FILM CONTAINING PROOXIDANTS

Nguyen¹,

Nguyen²,

Pham³

2018

JST

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The aim of this work is investigation of effect of CaCO 3 filler on the degradation of high density polyethylene (HDPE) films containing stearate salts as prooxidant additives. The films with thickness of 30 µm were prepared by adding 0.3 wt % prooxidant additives mixture (manganese (II) stearate/ferric stearate/cobalt (II) stearate with ratio of 18:4:1) and CaCO 3 filler from 5 to 20 wt % to HDPE resins by using twin screw extruder. The films were subjected to accelerated weathering treatment according to ASTM G154 standard (340 nm UV lamp, 8 hours UV, 4 hours condensation at 50 o C) for maximum duration of 96 hours. The mechanical properties, Fourier transform infrared (FTIR) spectroscopy, differential scanning calorimetry (DSC), thermo gravimetric analysis (TGA) and scanning electron microscope (SEM) were used to assess the changes of films during accelerated weathering. The results showed that the degradation rate of HDPE films with CaCO 3 filler is slower than that of HDPE without CaCO 3 filler, but the higher the CaCO 3 content is, the faster degradation rate HDPE is. After 96 hours of accelerated weathering treatment, the elongation at break of the HDPE film with 5 % CaCO 3 almost unchanged while this value of the HDPE films with 10 and 20 % CaCO 3 decreased significantly (96 % and 100 %, respectively). FTIR spectra of HDPE films with 10 and 20 % CaCO 3 showed carbonyl group's peak as the result of oxidation. FTIR spectra also indicated that CaCO 3 filler did not affect to the mechanism of polyethylene degradation.

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Aerobic biodegradation of calcium carbonate filled polyethylene film containing pro-oxidant additives

Cited by 28 publications

References 14 publications

Evaluation of the rate of abiotic and biotic degradation of oxo-degradable polyethylene

Evaluation of the rate of abiotic and biotic degradation of oxo-degradable polyethylene

Review on the current status of polymer degradation: a microbial approach

EFFECT OF CaCO3 FILLER ON THE DEGRADATION OF HIGH DENSITY POLYETHYLENE (HDPE) FILM CONTAINING PROOXIDANTS

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