Preparation of TiO2 film as nanocatalyst for functionalization of styrene-butadiene rubber
24th World Congress on Nanomaterials and Nanotechnology
July 12-13, 2018 Bangkok, Thailand

Kanpitcha Amornjiarasak and Jitladda Sakdapipanich

Mahidol University, Thailand

Posters & Accepted Abstracts: J Nanomed Nanotechnol

Abstract:

Styrene Butadiene Rubber (SBR) has wide variety of applications such as footwear, conveyor belts and especially tires. However, their usage is limited due to their inert hydrocarbon nature. A method used for improving properties of rubber latex is an introduction of some polar reactive like hydroxyl group onto the molecular main chain. A chemical modification herein was offered to prepare functionalized rubber latex via photo catalytic reaction using TiO2 film as a catalyst. The appropriate TiO2 film was prepared by spin-coating technique, followed by calcination at 550 °C. The efficiency, crystalline form and topology of TiO2 were analyzed by the degradation of Methylene Blue (MB), XRD and AFM respectively. The photo catalytic activity of TiO2 film decreased in each time of use, nevertheless performance of TiO2 film could be recovered under a long period of UV-cleaning. Subsequently, the functionalization of SBR was investigated under UV irradiation with presentation of TiO2 film. Several techniques were used for characterization of modified SBR: FT-IR, ATR and 1H-NMR spectroscopy. The hydroxyl functional group of SBR was observed after 3 hours of irradiation, using 20% H2O2 and UV 80W.

Biography :

Kanpitcha Amornjiarasak is a graduate student of Polymer Science and Technology ar Mahidol University, Thailand.

E-mail: jitladda.sak@mahidol.ac.th