Ageing and stabilisation of polymers

Заиков, Г. Е.

doi:10.1070/rc1991v060n10abeh001135

Cited by 3 publications

(1 citation statement)

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“…loss in time imparted hydrophilic properties of the surfaces. In literature, the term "ageing of polymers" is used to refer to the processes of slow degradation of bulk and surface properties of polymers under the influence of external factors such as sunlight, outdoor temperature, humidity, oxygen and ozone, mechanical stress and others [7][8][9]. Ageing of a thin modified layer of the NTP-treated surface is much faster in comparison with the bulk ageing of the polymer.…”

Section: Introductionmentioning

confidence: 99%

On Hydrophilicity Ageing of PP and PET Films Induced by Ultraviolet Radiation and Hydrogen Atoms

Akishev¹

2013

TOPPJ

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Abstract:The hydrophilicity ageing of polypropylene (PP) and polyethylene terephthalate (PET) films treated by nonthermal plasma usually takes over 150 days. In the present work, the accelerated ageing induced by hydrogen atoms and ultraviolet (UV) radiation with a wavelength of = 253.7 nm was studied. It was experimentally found that the hydrogen atoms restored the modified polymers to their original hydrophobicity very quickly (within several tens of seconds). UV irradiation of the modified PP film leads to degradation of the hydrophilic properties in 7-8 hours. The irradiation of PET film over the first three hours results in the hydrophilicity degradation, but further irradiation improves its hydrophilic properties. The analysis of the processes in the modified layer of PP and PET films during their ageing is performed.

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Section: Introductionmentioning

confidence: 99%

On Hydrophilicity Ageing of PP and PET Films Induced by Ultraviolet Radiation and Hydrogen Atoms

Akishev¹

2013

TOPPJ

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New aspects of the problem of the ageing and stabilisation of polymers

Заиков¹,

Polishchuk²

1993

Russ. Chem. Rev.

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Reactions of nitrogen oxides with polymers

Pariiskii¹,

Gaponova²,

Davydov³

2000

Russ. Chem. Rev.

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The mechanisms of the reactions of nitrogen oxides and The mechanisms of the reactions of nitrogen oxides and different classes of solid polymers are considered. Particular different classes of solid polymers are considered. Particular emphasis is given to the analysis of the mechanisms of the emphasis is given to the analysis of the mechanisms of the formation of stable nitroxyl radicals. Double bonds and amide formation of stable nitroxyl radicals. Double bonds and amide groups of macromolecules, as well as hydroperoxides and per-groups of macromolecules, as well as hydroperoxides and peroxide macroradicals are shown to be involved in the reactions with oxide macroradicals are shown to be involved in the reactions with nitrogen oxides. The application of nitrogen oxides for the nitrogen oxides. The application of nitrogen oxides for the preparation of spin-labelled polymers and the use of the ESR preparation of spin-labelled polymers and the use of the ESR imaging technique (ESR tomography) for the investigation of the imaging technique (ESR tomography) for the investigation of the structure of the reaction front during nitration of solid polymers structure of the reaction front during nitration of solid polymers are considered. The bibliography includes 111 references are considered. The bibliography includes 111 references. .

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Ageing and stabilisation of polymers

Cited by 3 publications

References 4 publications

On Hydrophilicity Ageing of PP and PET Films Induced by Ultraviolet Radiation and Hydrogen Atoms

On Hydrophilicity Ageing of PP and PET Films Induced by Ultraviolet Radiation and Hydrogen Atoms

New aspects of the problem of the ageing and stabilisation of polymers

Reactions of nitrogen oxides with polymers

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