The results indicated that the nanocomposites exhibited much less degree of ageing degradation, due to a strong UV shielding ability of the nano-TiO2. Particularly, the polyester/nano-TiO2 presented an improvement of 42.5% in the gloss retention and a reduction of 27.6% in the colour aberration after 1500 h UV ageing. This work proposed a dry modification method for the nano-TiO2 and its application Selleck Napabucasin as functional nanoscale additive, which are highly available for the widespread applications of polyester resin/TiO2 composites, and would provide considerable insights into the protection of natural and synthetic carbohydrate polymers from the UV irradiation. Acknowledgements This work was financially
supported by the National 863 Project (2003AA32X230), National S&T Major Project (2011ZX09102-001-10 and 2013ZX09301304-007), Science & Technology Support Programm of Sichuan Province (2013FZ0076) and Younger Fund of the Ministry of Education (10XJCZH005). And we would like to show our great thanks to Wang Hui (Analytical
& Testing Center, Sichuan University) due to her great help I BET 762 in SEM observation. References 1. Santos AL, Gomes NCM, Henriques I, Almeida A, Correia A, Cunha Â: Contribution of reactive oxygen species to UV-B-induced damage in bacteria. J Photoch Photobio B 2010, 117:40–46.CrossRef 2. Finlay-Jones JJ, Hart PH: Photoprotection: sunscreens and the immunomodulatory effects of UV irradiation. Mutat Res-Fund Mol M 1998, 422:155–159.CrossRef 3. Shi L, Shan JN, Ju YG, Aikens P, Prud’homme RK: Nanoparticles as delivery vehicles for sunscreen Methocarbamol agents. Colloid Surf A 2012, 396:122–129.CrossRef 4. Sinha RP, Häder DP: UV-induced DNA damage and repair: a review. Photoch Photobio Sci 2002, 1:225–236.CrossRef 5. Slater S, Glassner D, Vink E, Gerngross T: Evaluating the environmental impact of biopolymers.
Biopolymers online 2005, 10:474–491. 6. Gorrasi G, Milone C, Piperopoulos E, Lanza M, Sorrentino A: Hybrid clay mineral-carbon nanotube-PLA nanocomposite films. Preparation and photodegradation effect on their mechanical, thermal and electrical properties. Appl Clay Sci 2013, 71:49–54.CrossRef 7. Woo RSC, Chen YH, Zhu HG, Li J, Kim JK, Leung CKY: Environmental degradation of epoxy–organoclay nanocomposites due to UV exposure. Part I: Photo-degradation. Compos Sci Technol 2007, 67:3448–3456.CrossRef 8. Sionkowska A, Kaczmarek H, Wisniewski M, Kowalonek J, Skopinska J: Surface characteristics of UV-irradiated collagen/PVP blended films. Surf Sci 2004, 566–568:608–612.CrossRef 9. Serpone N, Dondi D, Albini A: Inorganic and organic UV filters: their role and efficacy in sunscreens and suncare products. Inorg Chim Acta 2007, 360:794–802.CrossRef 10. www.selleckchem.com/products/cftrinh-172.html Koelsch M, Cassaignon S, Ta Thanh Minh C, Guillemoles JF, Jolivet JP: Electrochemical comparative study of titania (anatase, brookite and rutile) nanoparticles synthesized in aqueous medium. Thin Solid Films 2004, 451:86–92.