the fracture of plasma-treated polyurethane surface under fatigue loading

Clicks: 262
ID: 188978
2018
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Abstract
Plasma treatment of soft polymers is a promising technique to improve biomedical properties of the materials. The response to the deformation of such materials is not yet clear. Soft elastic polyurethane treated with plasma immersion ion implantation is subjected to fatigue uniaxial loading. The influence of the strain amplitude and the plasma treatment regime on damage character is discussed. Surface defects are studied in unloaded and stretched states of the material. As a result of fatigue loading, transverse cracks (with closed overlapping edges as well as with open edges deeply propagating into the polymer) and longitudinal folds which are break and bend inward, appear on the surface. Hard edges of cracks cut the soft polymer which is squeezed from the bulk to the surface. The observed damages are related to the high stiffness of the modified surface and its transition to the polymer substrate.
Reference Key
morozov2018coatingsthe Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Ilya A. Morozov;Alexander S. Mamaev;Mikhail V. Bannikov;Anton Yu. Beliaev;Irina V. Osorgina
Journal die pharmazie
Year 2018
DOI
10.3390/coatings8020075
URL
http://www.mdpi.com/2079-6412/8/2/75
Keywords
polyurethane fracture plasma treatment civil engineering (general)

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