In situ Radical Copolymerization in Presence of Surface‐Modified TiO2 Nanoparticles: Influence of a Double Modification on Properties of Unsaturated Polyester (UP) Nanocomposites

2008 ◽  
Vol 47 (3) ◽  
pp. 472-484 ◽  
Author(s):  
V. Goodarzi ◽  
S. ALI Monemian ◽  
F. Maleki ◽  
M. Torabi Angaji
Keyword(s):  
Tio2 Nanoparticles ◽  
Unsaturated Polyester ◽  
Radical Copolymerization ◽  
Surface Modified ◽  
Double Modification

scholarly journals Thermal and Photocatalytic Performance of Unsaturated Polyester Resins Modified with TiO2 Nanoparticles as Panel Bodies for Vehicles

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2036
Author(s):  
Miren Blanco ◽  
Cristina Monteserín ◽  
Nerea Uranga ◽  
Estíbaliz Gómez ◽  
Estíbaliz Aranzabe ◽  
...  
Keyword(s):  
Tio2 Nanoparticles ◽  
Energy Use ◽  
Near Infrared ◽  
Uv Light ◽  
Unsaturated Polyester ◽  
Curing Kinetics ◽  
Pollutant Emissions ◽  
Transport Sector ◽  
Scanning Calorimetry ◽  
Photocatalytic Effect

The transport sector is the fastest growing contributor to climate emissions and experiences the highest growth in energy use. This study explores the use of TiO2 nanoparticles for obtaining photocatalytic nanocomposites with improved infrared reflectance properties. The nanocomposites were prepared by dispersing 0–20 wt% of TiO2 nanoparticles in an unsaturated polyester resin. The effect of TiO2 on the curing kinetics was studied by differential scanning calorimetry, showing a significant delay of the curing reactions. The thermal reflectance of the modified resins was characterized by UV-Vis-NIR spectrophotometry, measuring total solar reflectance (TSR). The TiO2 greatly increased the TSR of the resin, due to the reflectance properties of the nanoparticles and the change in color of the modified resin. These nanocomposites reflect a significant part of near-infrared radiation, which can contribute to a reduction of the use of heating, ventilation, and air conditioning. Moreover, the photocatalytic effect of the TiO2 modified nanocomposites was studied by monitoring the degradation of an organic model contaminant in an aqueous medium under UV light, and the reusability of the nanocomposites was studied with 5 cycles. The developed nanocomposites are proposed as a solution for reducing global warming and pollutant emissions.

In situ construction of a MOF-derived carbon-encapsulated LiCoO2 heterostructure as a superior cathode for elevated-voltage lithium storage: from experimental to theoretical study

2020 ◽  
Vol 8 (14) ◽  
pp. 6607-6618 ◽  
Author(s):  
Jia Lin ◽  
Chenghui Zeng ◽  
Yueying Chen ◽  
Xiaoming Lin ◽  
Chao Xu ◽  
...  
Keyword(s):  
Carbon Coating ◽  
Theoretical Study ◽  
Lithium Storage ◽  
Surface Modified

A strategy is proposed for a surface-modified LiCoO2 heterostructure by in situ MOF-derived carbon coating to achieve a distinguished performance for elevated-voltage lithium storage.

In Vitro Mineralization and Cell Adhesion on Surface Modified Poly (2 - hydroxy ethyl methacrylate-co-methyl methacrylate

2006 ◽  
Vol 309-311 ◽  
pp. 493-496 ◽  
Author(s):  
G.S. Sailaja ◽  
T.V. Kumari ◽  
Yoshiyuki Yokogawa ◽  
H.K. Varma
Keyword(s):  
Cell Adhesion ◽  
Calcium Phosphate ◽  
Methyl Methacrylate ◽  
Radical Copolymerization ◽  
Sem Analysis ◽  
Free Radical Copolymerization ◽  
In Vitro Mineralization ◽  
Atr Spectroscopy ◽  
Surface Modified

Poly(2-hydroxyethyl methacrylate-co- methyl methacrylate) HM, was synthesized by free radical copolymerization, cross-linked with ethylene glycol dimethacrylate and phosphorylated. The phosphate coupling was ensured by ATR spectroscopy. The in vitro mineralization ability of the phosphorylated HM (designated as PHM) was investigated by studying the nucleation and growth of calcium phosphate on its surface by immersing in simulated body fluid (SBF) solution. The coating morphology was studied by SEM and the Ca/P ratio of the coating by EDX analysis. The cell adhesion behaviour of PHM was studied by seeding Human osteosarcoma (HOS) cells for one week followed by SEM analysis along with HM as control. It was observed that HOS cells exhibited biomineralization of calcium phosphate on the surface of HM as well as on PHM with a significantly higher amount on the surface of PHM as observed by von kossa staining method. The results show that PHM is capable of in vitro mineralization under simulated physiological condition, promotes cell adhesion by providing an excellent cell friendly surface and it exhibits biomineralization of calcium phosphate in presence of HOS cells.

Preparation and properties of short oil alkyd resin/TiO2 nanocomposites based on surface modified TiO2 nanoparticles

2016 ◽  
Vol 39 (5) ◽  
pp. 1488-1499 ◽  
Author(s):  
Tijana S. Radoman ◽  
Jasna V. Džunuzović ◽  
Pavle M. Spasojević ◽  
Milena T. Marinović-Cincović ◽  
Katarina B. Jeremić ◽  
...  
Keyword(s):  
Tio2 Nanoparticles ◽  
Alkyd Resin ◽  
Surface Modified

Preparation of in‐situ surface‐modified nanosilica and its application in separating oil from water

2013 ◽  
Vol 8 (1) ◽  
pp. 15-18 ◽  
Author(s):  
Kai Liu ◽  
Nan Zheng ◽  
Xiaohong Li ◽  
Zhijun Zhang
Keyword(s):  
Surface Modified
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