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Correlation Between Mechanical Properties and Cross‐Linking Degree of Ethyl Lactate Plasma Polymer Films
Author(s) -
Ligot Sylvie,
Bousser Etienne,
Cossement Damien,
KlembergSapieha Jolanta,
Viville Pascal,
Dubois Philippe,
Snyders Rony
Publication year - 2015
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.201400162
Subject(s) - nanoindentation , materials science , polymer , creep , composite material , viscoelasticity , coating , plasma , physics , quantum mechanics
Plasma polymer films are more and more used in numerous applications such as the day‐to‐day packaging, which requires a good mechanical resistance of the coating. Since mechanical properties are function of the cross‐linking degree of the thin films, it is important to understand the relationship between the two. In this work, plasma polymer films were studied in terms of cross‐linking degree and mechanical properties, measured by means of ToF‐SIMS coupled to PCA and depth‐sensing nanoindentation, respectively. The data reveal that when the power increases, the films are more cross‐linked and show higher hardness, higher elastic recovery, lower creep strain and an increased ability for self‐healing. As the plasma polymer films are more cross‐linked, the plasticity drops and the viscoelasticity and hardness increase.