Zhao, Yan, Yang, Weidong, Wang, Xungai and Lin, Tong 2010, Visible transparent, UV-blocking polymer nanocomposite films containing nano-sized organic-LDH (Layered Double Hydroxide) hybrid, in ThinFilms2010 & Compo2010 : Proceedings of The 5th International Conference on Technological Advances of Thin Films & Surface Coatings in conjunction with The 1st International Conference on Advanced Polymer Matrix Composites, Thin Films Society, China, pp. 1-7.
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ThinFilms2010 & Compo2010 : Proceedings of The 5th International Conference on Technological Advances of Thin Films & Surface Coatings in conjunction with The 1st International Conference on Advanced Polymer Matrix Composites
A nano-sized Mg2Al layered double hydroxide (LDH) was used for encapsulating an organic UV absorber, 2-hydroxy-4- methoxybenzeophenone-5-sulfonic acid (HMBS), to produce HMBS@LDH hybrid nano-platelets. Upon dispersing this organic-inorganic hybrid LDH into ethylene-vinyl alcohol copolymer (EVOH) for film casting, a thin polymer nanocomposite film that is UV opaque but highly transparent to visible light (higher than 90%) was formed. Thermogravimetry (TG) analysis confirmed that the intercalation of HMBS into LDH considerably increased the thermal stability of HMBS. Such an improvement was attributed to the strong guest-host interaction between the HMBS anions and the LDH layers. Also, the nanocomposite films were flexible and had good mechanical properties.
Field of Research
091202 Composite and Hybrid Materials
Socio Economic Objective
860607 Plastic Products (incl. Construction Materials)
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