【摘 要】
：
This study used methacrylic acid as surface modifier to facilitate the homogeneous dispersion of n-ZrO2 into polymer.Nanocrystals of ZrO2 modified with methacrylic acid were first tested for it disper
【机 构】
：
Department of Chemical and Materials Engineering,National Central University,Chung-Li,Taiwan
论文部分内容阅读
This study used methacrylic acid as surface modifier to facilitate the homogeneous dispersion of n-ZrO2 into polymer.Nanocrystals of ZrO2 modified with methacrylic acid were first tested for it dispersibility in selected organic solvents.It was found that n-ZrO2 modified with methacrylic acid was able to disperse in solvents such as ,MeOH,EtOH, THF, Benzen and CHCl3, Consequently, the methacrylic acid modified n-ZrO2 was selected to blend with acrylate for further study.The blending of modified n-ZrO2 and urethane-acrylate, as well as the initiator was accomplished in THF solvent.After the removal of solvent, the transparent composite was UV-cured into a highly transparent film.The refractive index of the composite increased from the value of 1.51 for the original resin to 1.63 and the hardness increased from 170 to 470 MPa.when 53 wt% of n-ZrO2 was added, and the transparency remains at 97.1% for a film thickness of 25 μm.
其他文献
This paper discusses thermal and gas barrier properties of polypropylene (PP)-polyether treated clay nanocomposites.PP-polyether (poly(ethylene glycol) monolaurate, PEG) treated clay reinforced nanoco
In this work, the microstructure and morphology ruptured and developed of polyethylene-block-poly(ethylene glycol) (PE-b-PEG) diblock copolymers during heating and isothermal crystallization processin
Polypyrrole coated-silica/Ni-Zn ferrite (PPy/SiO2/Ni-Zn ferrite) composites were synthesized by an in-situ polymerization method, where pyrrole (Py), cetyltrimethyl ammonium brombide (CTAB) and SiO2/N
A series of transparent polyimide-nanocrystalline-titania hybrid optical films with tunable refractive index, high thermal stability and thickness (20-30 μm) have been prepared by the incorporation of
We prepared a new class of polybenzoxazine-POSS nanocomposites with network structures by reacting the multifunctional benzoxazine group of POSS (OBZPOSS), which was synthesized from octa-azido functi
Polylactide (PLA) composites with aluminum hydroxide (ATH) and montmorillonite were prepared via direct melting compounding using a twin-screw micro extruder.It was found that the modified clays were
Gold nanostructures (AuNSs) exhibit fascinating size-and shape-dependent electric, magnetic and optical properties and fine applications from catalysis to biology.The development of simple and versati
In the last decade, the biosynthesis of nanocomposites, as a representative intersection of nanotechnology and biotechnology, has received increasing attention due to the growing need to develop envir
Tissue engineering is a promising approach for addressing the problem of donor tissues and organs.One of the most widely used material for tissue regeneration is biomaterials such as silk protein whic
Characterization of the poly(l-lactic acid)/titania nanocomposites by using the sol-gel processing was investigated by differential scanning calorimetry (DSC), polarized optical microscopy (POM), Four