کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1658325 | 1008334 | 2012 | 7 صفحه PDF | دانلود رایگان |
Protective coatings containing polymer microcapsules loaded with water displacing alkoxysilanes were studied by means of a new apparatus allowing the study of advancing and receding contact angles during the simultaneous stretch forming of the coated substrate. FE-SEM studies were performed after stretch forming to correlate the defect structure with the process of hydrophobization. It could be shown that the incorporation of alkoxysilane loaded polymer capsules into a coating system led to a pronounced hydrophobization of cracks that were formed during the stretching of the sample. The local hydrophobization is assigned to the conversion of alkoxysilanes to polysiloxanes via hydrolysis and condensation which are initiated by the contact of those alkoxysilanes with the aqueous electrolyte during water attack.
► New experimental set-up for measurement of contact angle during stretch forming.
► Release of alkoxysilanes from capsules integrated in polymer coatings.
► Coatings loaded with alkoxysilane filled capsules with hydrophobic properties.
Journal: Surface and Coatings Technology - Volume 206, Issue 21, 15 June 2012, Pages 4481–4487