Formation of hydrophobic layers on biologically degradable polymeric foils by plasma polymerization

Biodegradable polymer foils made by extrusion of a mixture of potatoes and maize starch were coated by plasma polymerization of hexamethyldisilazane (HMDSN) and hexamethyldisiloxane (HMDSO) in order to prevent the direct action of water while retaining the biodegradability of the foils as much as po...

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Bibliographic Details
Published in:Surface & coatings technology 1998, Vol.98 (1), p.872-874
Main Authors: Behnisch, J., Tyczkowski, J., Gazicki, M., Pela, I., Holländer, A., Ledzion, R.
Format: Article
Language:English
Subjects:
Biodegradability
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Hexamethyldisilazane
Hexamethyldisiloxane
Ion and electron beam-assisted deposition
ion plating
Materials science
Methods of deposition of films and coatings
film growth and epitaxy
Physics
Plasma polymerization
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Summary:Biodegradable polymer foils made by extrusion of a mixture of potatoes and maize starch were coated by plasma polymerization of hexamethyldisilazane (HMDSN) and hexamethyldisiloxane (HMDSO) in order to prevent the direct action of water while retaining the biodegradability of the foils as much as possible. Foils coated at higher monomer concentrations in the argon feed (17% and 11% for the HMDSN and the HMDSO, respectively) and at higher RF power (5 W and 2 W, respectively) became highly hydrophobic (water contact angle 97° and 103°, respectively), i.e. they showed a good water repellency. Beside a small increase of the induction period, the biodegradability remained unaffected by the coatings.
ISSN:0257-8972
1879-3347
DOI:10.1016/S0257-8972(97)00360-5