Monitoring abiotic degradation of branched polyethylenes formulated with pro-oxidants through different mechanical tests

Benítez, Alejandro J.; Sánchez, Johan J.; Arnal, María L.; Müller, Alejandro J.

doi:10.1016/j.polymdegradstab.2013.06.004

Cited by 12 publications

(9 citation statements)

References 83 publications

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“…No statistical differences were determined between the HDPE and HDPE-EG compositions under both natural and accelerated aging after 90 and 180 days. A similar behavior has been reported in the literature for polyethylene films containing pro-oxidant agents [31,32]. On the other hand, the reduction of the deformation at rupture of the HDPE-MA-RH and HDPE-MA-EG-RH composites is attributed to the presence of rice husk particles that render the samples less ductile owing to a reduction of the motility of the polyethylene chains [33].…”

Section: Mechanical Propertiessupporting

confidence: 83%

Biodegradation in simulated soil of HDPE/pro-oxidant/rice husk composites: application in agricultural tubes

2018

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The use of agricultural waste, such as rice husk (RH), for the production of cheap and eco-friendly polymer composites has emerged as a promising field of interest. The aim of this work was the preparation of highdensity polyethylene (HDPE)-based composites reinforced with rice husk and an organic pro-oxidant (EG15) for the production of seedlings tubes. Photodegradation and degradation tests in simulated soil were performed for 90 and 180 days in order to study the decomposition of these composites. The SEM and OM images suggest that degradation of the composites samples was more extensive than the pure HDPE samples, probably because the composites present intense light absorption in the UV range, facilitating the degradation process even before biodegradation begins. In addition, after introducing RH particles in the polymeric matrix, the mechanical tensile and flexural properties, experienced significant changes, suggesting that the RH particles were homogeneously dispersed throughout the polymer matrix. Finally, the results have demonstrated that HDPE, RH, and EG15 are attractive materials for the design of polymeric composites for the production of seedlings tubes with excellent mechanical properties, being also easily decomposed in the environment once discarded.

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Section: Mechanical Propertiessupporting

confidence: 83%

Biodegradation in simulated soil of HDPE/pro-oxidant/rice husk composites: application in agricultural tubes

2018

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“…17 The concept relies on the introduction of a known defect (i.e., notch) from which the crack propagates in order to determine the intrinsic properties independently from the sample geometry. Few studies in the literature examine polymer aging using the EWF method, 39,40 in particular for TPEs. Since this method is rather time-consuming, partly due to the numerous samples required for a given exposure condition, we only focused on one aging condition: seawater at 80 C. Therefore, only PEBA and TPU-ester were studied using this method.…”

Section: Essential Work Of Fracturementioning

confidence: 99%

Relationships between molar mass and fracture properties of segmented urethane and amide copolymers modified by chemical degradation

Bardin

Gac

Bindi

et al. 2020

Journal of Polymer Science

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“…Most of the works related to the study of polymer degradation and oxo‐degradable polymers are focused on different types of polyethylene since 60%–64% of the plastic products are made of these materials. Less attention has been paid to materials such as polypropylene, the polymer with the highest worldwide interannual growth of consumption rate which registered a global production of 56.44 million tons in 2016, a number that is forecasted to increase to 75.72 million tons by 2022…”

Section: Introductionmentioning

confidence: 99%

Thermal and UV degradation of polypropylene with pro‐oxidant. Abiotic characterization

Arráez

Arnal

Müller

2017

J of Applied Polymer Sci

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The oxodegradation of an injection molding grade polypropylene (PP), formulated with 0%, 1.5%, and 3% w/w of a prooxidant additive, was studied. The degradation was conducted in a weathering tester at 60 8C for 40 h. The process was monitored by Fourier transform infrared spectroscopy, standard differential scanning calorimetry, and successive self-nucleation and annealing. Neat PP samples did not exhibit significant changes during the exposure time employed. PP samples with oxo-additive presented similar changes independently of the amount of oxo-degradative additive employed; however, the changes manifested more rapidly in the formulation with higher pro-oxidant content. Fourier transform infrared spectroscopy studies revealed the presence of hydroxyl and carbonyl functional groups whereas differential scanning calorimetry tests showed the decrease in the melting and crystallization temperatures as a consequence of the chain scission and oxidation reactions taking place during exposure. In addition, the induction time (t id ) of the oxo-degradative process was determined for each technique employed and successive self-nucleation and annealing was found to be the most sensitive characterization technique to reveal structural modifications in PP samples. V C 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46088.

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Monitoring abiotic degradation of branched polyethylenes formulated with pro-oxidants through different mechanical tests

Cited by 12 publications

References 83 publications

Biodegradation in simulated soil of HDPE/pro-oxidant/rice husk composites: application in agricultural tubes

Biodegradation in simulated soil of HDPE/pro-oxidant/rice husk composites: application in agricultural tubes

Relationships between molar mass and fracture properties of segmented urethane and amide copolymers modified by chemical degradation

Thermal and UV degradation of polypropylene with pro‐oxidant. Abiotic characterization

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