Abstract
AbstractSome properties of SiO2–PMMA hybrid coatings can be tailored by controlling the weight content of each component. For instance, hardness of SiO2–PMMA hybrid coatings takes values between those of SiO2 and PMMA, depending on the molar concentration ratio. Thus, these coatings are quite appropriated to be applied as antiscratch and abrasion resistant on polymeric materials such as acrylic. In this work we have evaluated the hardness and wearing properties of SiO2–PMMA‐Al2O3 hybrid coatings deposited on acrylic substrates. The hybrid coatings were deposited by the sol‐gel method from a precursor solution with a molar ratio 1:0.25:0.25 for tetraethil‐orthosilicate (TEOS), methylmethacrylate (MMA) and 3‐trimetoxi‐silil‐propil‐methacrylate (TMSPM) as the coupling agent, respectively. Another set of hybrid coatings with additional 0.1 wt.% of Al2O3 nanowhiskers in an identical precursor solution were also deposited on acrylic substrates. Hardness, creep and wearing properties of both types of hybrid coatings were evaluated by nanoindentation and nanoscratching. Complementary atomic force microscopy and optical transmission spectroscopy measurements were done in all the hybrid films studied. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
