Effect of mechanical stress on oxidation of polymers

Peeva, Ludmila; Evtimova, Sonya

doi:10.1016/0014-3057(84)90127-7

Cited by 6 publications

(2 citation statements)

References 1 publication

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“…Stabilizers sometimes have been found not to be effective when materials are used under stress (Regel and Vershinina 1973). If stress increases the orientation of polymer molecules, oxidation may also be retarded (Peeva and Evtimora 1984). (Regel and Vershinina 1973).…”

Section: Stressmentioning

confidence: 99%

Accelerated Aging, Photochemical and Thermal Aspects

Witte¹,

Feller²

1996

Studies in Conservation

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The Getty Conservation Institute, an operating program of the J. Paul Getty Trust, is committed to raising public awareness of the importance of preserving cultural heritage worldwide and to furthering scientific knowledge and professional practice in the field of conservation. The Institute conducts research, training, documentation, and conservation activities in several major areas including objects and collections, archaeological sites and monuments, and historic buildings and sites. Research in Conservation This reference series is intended to make available the findings of research conducted by the Getty Conservation Institute and its individual and institutional research partners, as well as state-of-the-art reviews of conservation literature. Each volume covers a separate topic of current interest and concern to conservators.

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Section: Stressmentioning

confidence: 99%

Accelerated Aging, Photochemical and Thermal Aspects

Witte¹,

Feller²

1996

Studies in Conservation

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“…Of the external factors, the ultraviolet irradiation in sunlight is the main factor affecting service performances of materials [4,5]. Simultaneously, PVC-coated membrane materials inevitably exposed to various forms of stresses under the status of long-term tensile stresses [6][7][8]. The existence of stresses will change physical and chemical structures of the material, accelerate its photo-oxidation aging speed, weaken its strength, shorten its aging time and then severely affect its function and lifetime.…”

Section: Introductionmentioning

confidence: 99%

Relationship between physical and mechanical properties of accelerated weathering and outdoor weathering of PVC-coated membrane material under tensile stress

Yang

Jiang

et al. 2016

Journal of Industrial Textiles

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To estimate the photo-oxidation aging performance of PVC-coated membrane material in atmospheric conditions under tensile stresses, the relationship between physical and mechanical properties under accelerated weathering test and outdoor weathering test is studied with the same cumulative UV radiation energy. And then, both tensile strength and whiteness index were measured and compared to characterize the property change of membrane material after aging under four different tensile stresses (0%, 5%, 10% and 20% of the breaking strength), respectively. In addition, FTIR spectrometry was applied to characterize the chemical components of the samples under different weathering conditions, and the carbonyl index was extracted. The results show that there were significant differences of tensile strength and carbonyl index between two kinds of aging conditions, whereas with the increasing tensile stresses, the whiteness index represented a consistent increasing deviation of accelerated weathering from the outdoor weathering. However, the relationship have been built between both whiteness index and tensile strength retention of accelerated weathering and those of outdoor weathering conditions after a Schwarzschild’s modification. Therefore, the service lifespan of PVC-coated membrane materials can be evaluated by accelerated weathering tests under tensile stresses.

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The effects of stress, environment and polymer variables on the durabilities of oriented polypropylene tapes

Horrocks

D'Souza

1994

Polymer Degradation and Stability

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Effect of mechanical stress on oxidation of polymers

Cited by 6 publications

References 1 publication

Accelerated Aging, Photochemical and Thermal Aspects

Accelerated Aging, Photochemical and Thermal Aspects

Relationship between physical and mechanical properties of accelerated weathering and outdoor weathering of PVC-coated membrane material under tensile stress

The effects of stress, environment and polymer variables on the durabilities of oriented polypropylene tapes

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