Research Conducted by F.
Our news editors obtained a quote from the research, "On a pilot-scale VUV/UV lamp set-up, through cure of acrylate-based nanocomposites of about 50 mu m thickness has been performed in the absence of any photoinitiator. Post-curing VUV irradiation of cured acrylate coatings under nitrogen atmosphere resulted in an excitation of C=O groups rather than photodegradation. Radical formation via absorption of high energy photons (having wavelengths lambda < 219 nm) by C=O bonds is assumed yielding a higher network density within thin surface layers via radical recombination reactions. 2D correlation analysis supports the formation of polar C-OH groups generated after H abstraction by center dot C-O center dot biradicals. Consequently, additional crosslinking reactions within surface-near layers take place via C-C bonds between neighboring polymer chains rather than via C-O-C bonds."
According to the news editors, the research concluded: "Thus, VUV matted acrylate coatings show enhanced surface hardness, improved chemical resistance, and hydrophilic properties."
For more information on this research see: Photoinitiator-free UV curing and matting of acrylate-based nanocomposite coatings: Part 3. Progress in
The news editors report that additional information may be obtained by contacting F.
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