Oxo-degradation of LDPE with pro-oxidant additive

Lukanina, Yu. K.; Kolesnikova, N. N.; Попов, А. А.; Хватов, А. В.

doi:10.1088/1757-899x/525/1/012104

Cited by 5 publications

(3 citation statements)

References 5 publications

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“…Degradation is a process in which materials undergo changes in the chemical structure under specific environmental conditions leading to a significant loss in physical and mechanical properties as defined by the American Society for Testing of Materials (ASTM) and International Standards Organization (ISO) [102]. Terms like "oxo," [103][104][105][106][107] "hydro," [39] "photo," [108][109][110] and "chemo" [111] degradable describe abiotic mechanisms of degradation [112]. These processes do not constitute or represent biodegradability, in which microorganisms are present.…”

Section: Degradability Versus Biodegradabilitymentioning

confidence: 99%

Chitin- and cellulose-based sustainable barrier materials: a review

Bourg

et al. 2020

emergent mater.

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The accumulation of synthetic plastics used in packaging applications in landfills and the environment is a serious problem. This challenge is driving research efforts to develop biodegradable, compostable, or recyclable barrier materials derived from renewable sources. Cellulose, chitin/chitosan, and their combinations are versatile biobased packaging materials because of their diverse biological properties (biocompatibility, biodegradability, antimicrobial properties, antioxidant activity, non-toxicity, and less immunogenic compared to protein), superior physical properties (high surface area, good barrier properties, and mechanical properties), and they can be assembled into different forms and shapes (powders, fibers, films, beads, sponges, gels, and solutions). They can be either assembled into packaging films or used as fillers to improve the properties of other biobased polymers. Methods such as preparation of composites, multilayer coating, and alignment control are used to further improve their barrier, mechanical properties, and ameliorate their moisture sensitivity. With the growing application of cellulose and chitin-based packaging materials, their biodegradability and recyclability are also discussed in this review paper. The future trends of these biobased materials in packaging applications and the possibility of gradually replacing petroleum-based plastics are analyzed in the “Conclusions” section.

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Section: Degradability Versus Biodegradabilitymentioning

confidence: 99%

Chitin- and cellulose-based sustainable barrier materials: a review

Bourg

et al. 2020

emergent mater.

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“…The metal in the additive was 0.8% Mn, as revealed by AAS; the crystallinity obtained from DSC tests changed while accelerated degradation took place, due to annealing and recrystallization after the chain rupture process. Lukanina et al [109] and Protasov et al [110] investigated the influence of metal (Co, Fe, and Mn) stearates as pro-oxidants in LDPE film biodegradation. Ojeda et al [111] considered the influence of D2W pro-oxidant additive on abiotic and biotic PE degradation with Aspergillus and Penicillium.…”

mentioning

confidence: 99%

“…The additive was introduced at concentrations of 1-5 wt.%. The additive presented in Lukanina et al [109] initiates the oxidation rupture of polyolefin chains. It includes pro-oxidants (combinations of metal carboxylates, e.g., 2-ethylhexoate of Zn or Zr, 1-3%) set on an inert CaCO 3 (8-10%) plate.…”

mentioning

confidence: 99%

Oxo-Additives for Polyolefin Degradation: Kinetics and Mechanism

2023

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This review considers the recent investigations in the scope of biodegradability of synthetic polymers, spanning polyethylene (PE), polypropylene (PP), and their corresponding composites, with a focus on the influence of oxo-additives (mostly transition metal salts). The types of oxo-additives and the mechanisms of oxidation acceleration are discussed. Furthermore, the influence of oxo-additives on both physicochemical and biological stages of degradation is evaluated (laboratory and field experiments with microorganisms/fungi action) with recent standards suggested for degradation estimation. Comparisons of the metal salts are given with respect to catalysis, as well as the synergetic influence of additives. The additives presented on the commercial market are also discussed.

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