Additives for ultraviolet-induced oxidative degradation of low-density polyethylene

2016 ◽  
Vol 133 (17) ◽  
pp. n/a-n/a ◽  
Author(s):  
Zehra Oluz ◽  
Teoman Tinçer
Keyword(s):  
Oxidative Degradation ◽  
Low Density Polyethylene ◽  
Low Density

The effect of comonomer concentration and distribution on the photo-oxidative degradation of linear low density polyethylene films

Polymer ◽  
2017 ◽  
Vol 119 ◽  
pp. 66-75 ◽  
Author(s):  
Yu-Chieh Hsu ◽  
Rowan W. Truss ◽  
Bronwyn Laycock ◽  
Michael P. Weir ◽  
Timothy M. Nicholson ◽  
...  
Keyword(s):  
Oxidative Degradation ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Linear Low Density Polyethylene ◽  
Polyethylene Films

Multi-component analysis of low-density polyethylene oxidative degradation

2006 ◽  
Vol 91 (11) ◽  
pp. 2775-2785 ◽  
Author(s):  
Mario Salvalaggio ◽  
Roberto Bagatin ◽  
Marco Fornaroli ◽  
Sergio Fanutti ◽  
Stefano Palmery ◽  
...  
Keyword(s):  
Oxidative Degradation ◽  
Component Analysis ◽  
Low Density Polyethylene ◽  
Low Density

scholarly journals Influence of the irradiation conditions on the effect of radiation on polyethylene

2004 ◽  
Vol 69 (12) ◽  
pp. 1029-1041 ◽  
Author(s):  
Zorica Kacarevic-Popovic ◽  
Dusan Kostoski ◽  
Ljiljana Novakovic ◽  
Nada Miljevic ◽  
Bojana Secerov
Keyword(s):  
Molecular Structure ◽  
Oxidative Degradation ◽  
Spectrophotometric Analysis ◽  
Low Density Polyethylene ◽  
Structure Evolution ◽  
Low Density ◽  
Double Bonds ◽  
Radiation Induced ◽  
Induced Changes ◽  
Evolution Of Oxygen

Two types of polyethylene, low density (LDPE) and high density (HDPE), as well as low density polyethylene containing an antioxidant were subjected to ?-irradiation in the presence of air and in water. The irradiated polymers were studied using IR spectrophotometric analysis. The radiation induced oxidative degradation was followed through the formation of oxygen containing groups by the development of bands in the 1850?1650 cm-1 region and double bonds formation by the development of bands in the 1050?850 cm-1 region. The crosslinking efficiency was determined by measuring the gel content by extraction with xylene. The radiation induced changes in the molecular structure, evolution of oxygen containing species and formation, of vinyl double bonds as well as of the crosslinking efficiency are discussed in terms of the properties of the polymers in an electric field of low strength.

Oxidative Degradation of Polyethylene Filled with Nanosized Crushed Shells of Sea Oysters

2021 ◽  
Vol 887 ◽  
pp. 123-128
Author(s):  
Z. Akhmetshina ◽  
E. Mastalygina ◽  
P. Pantyukhov
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Calcium Carbonate ◽  
Absorption Band ◽  
Climatic Factors ◽  
Oxidative Degradation ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Ftir Analysis ◽  
The Cost

The work is devoted to the study of the effect of marine calcium carbonate on the polymer matrix. The composite flat strips based on low-density polyethylene filled by crushed shells of sea oysters, which are the main source of sea calcium, were investigated. Marine calcium carbonate masterbatch was used to reduce the cost and stiffen the resulting composite materials. The effect of the masterbatch concentration on mechanical properties and oxidative degradation were studied. The materials were exposed to three climatic factors (temperature, UV-radiation and moisture). The addition of crushed shells led to embrittlement of the test materials. According to FTIR analysis, the absorption band at 1432 cm-1 attributed to carbonate minerals decreased or completely disappeared after weathering test due to washing out of CaCO3 from the composite.

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