Synthesis and Characterization of Nano-TiO₂/SiO₂-Acrylic Composite Resin

Abstract

Waterborne acrylic resin is widely used as a binder of waterborne printing ink because of its excellent comprehensive properties. However, its further developments and applications are hindered by its poor UV resistance and water resistance. Therefore, an approach to prepare acrylic resin with excellent UV resistance and water resistance is described in this present study. The nano-TiO2/SiO2 composite particles were first modified with a silane coupling agent (KH-570) and a titanate coupling agent (NDZ-101) and then embedded into acrylic resin via a blending method. Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and thermogravimetry analysis (TGA) were applied to investigate the structure and morphology of the modified nano-TiO2/SiO2 composite particles. The effects of the modified nano-TiO2/SiO2 composite particles on the UV and water resistance of the acrylic resin were investigated by UV spectroscopy and water resistance analysis. The weight loss of modified nano-TiO2/SiO2 was about 20% when heated to 600°C, which indicated that the nano-TiO2/SiO2 composite particles were modified by the coupling agents successfully. The UV-Vis spectra of acrylic resin showed that the UV resistance was improved upon the addition of nano-TiO2/SiO2. The water absorption of the nano-TiO2/SiO2-acrylic resin was less than 5%, indicating that the water resistance of the material was improved.

Mechanical and thermal properties of a nanocomposite made of a polymer matrix reinforced by a binary nanoparticle TiO2 - SiO2 produced by sol-gel method

“…The peak from 1100 cm-1could bean indication of the presence of asymmetric stretching vibrations of Si-O-Si bond as Du et al [44] explained. Moreover, in line with Quyen et al [20], the small peak observed at 940 cm-1 could be attributed to Ti-O-Si linkages a rming the bonding between Ti and Si At 1200°C.Thus, the Ti-O-Si bond would improve the thermal stability of TiO2 and suppress the phase transformation from anatase to rutile.…”

Synergistic Effects of 1-Octyl-3-Methylimidazolium Hexafluorophosphate and Cellulose Nanocrystals on Improving Polyacrylate Waterborne Anti-Corrosion Coatings

“…Although the anti-corrosion performance was enhanced with the introduction of C 8 mimPF 6 , it was still inferior to other anti-corrosion coatings, such as epoxy, due to the poor performance of neat waterborne PMMA-co-PBA [ 3 ]. However, as one of the acrylate coatings, waterborne PMMA-co-PBA coatings have advantages such as low cost, excellent adhesion, coalescence, color retention, and satisfactory UV and hydrolysis resistance [ 4 , 5 ]. Rather than searching for alternative waterborne coating resins without prior anti-corrosion resistance to encapsulate C 8 mimPF 6 , direct addition of fillers to enhance the barrier effect of the neat PMMA-co-PBA coating is a facile route to improve the anti-corrosion performance [ 6 ].…”

Characteristics of organic titanate modified titanium dioxide nanoparticles and its dispersibility in acrylic emulsion coating

“…The UV resistance, thermal stability, flexural strength, wettability, photocatalytic performance and cleanability of polymer based materials could be improved in the presence of TNP. [5][6][7][8][9][10][11][12] However, due to the large surface to volume ratio of TNP as well as the difference in the nature and structure between TNP and organic polymer, TNP tend to agglomerate easily to form bigger clusters in polymer matrix. Thus, it causes to decrease in some properties of the polymeric nanocomposite materials.…”