Study of polyethylene photodegradation in formulations with a system of interacting photostabilizers and antioxidants

Berlanga-Duarte, M. L.; Angulo-Sánchez, J.L.; González-Cantú, M. C.

doi:10.1002/(sici)1097-4628(19960418)60:3<413::aid-app15>3.3.co;2-7

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2010

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“…Berlanga et al [21] studied the effect of different combination of UV-stabilizers and antioxidants on the photo-degradation process by the accelerated UV photodegradation process of LDPE films, formulated with two photostabilizers and two antioxidants. Samples from these films were submitted to accelerate UV ageing, and the polymer degradation was measured by carbonyl group evolution, molecular weigh distribution changes and maximum elongation loss.…”

Section: Introductionmentioning

confidence: 99%

An Investigation into the UV-Photo-Oxidative Degradation of LDPE by Using Cobalt Naphthenate as Photosensitizer

Eltayeb

Barikani

Mahdavian

et al. 2010

Polymer-Plastics Technology and Engineering

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The effect of cobalt naphthenate on photo degradation of low density polyethylene was studied. The carbonyl index, tensile strength, elongation at break, density and relative crystallinity of the samples were measured. The samples were made of different concentrations of LDPE and cobalt naphthenate. Parts of uniform thickness were cut for testing before and after UV-irradiation at every 30-days interval for 90 days. From the results of FTIR, and other measurements, it was observed that the UV-irradiation affects on the LDPE films and the rate of degradation increased with increasing both the concentration of the photosensitizer and time of irradiation.

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Section: Introductionmentioning

confidence: 99%