scholarly journals Weath ering Performance of Beech Wood Coated with Acrylic Paint Containing UV Stabilizers of Dihydroxy Benzophenone and Nano Zinc Oxide

2020 ◽  
Vol 71 (4) ◽  
pp. 403-409
Author(s):  
Mehrnaz Akbarnezhad ◽  
Davood Rasouli ◽  
Hossein Yousefi ◽  
Mahdi Mashkour
Keyword(s):  
Contact Angle ◽  
Zinc Oxide ◽  
Beech Wood ◽  
Mold Growth ◽  
Acrylic Paint ◽  
Color Changes ◽  
Acrylic Coating ◽  
Nano Zinc Oxide ◽  
Water Based ◽  
Nano Zinc

In this study, the effect of UV stabilizers (dihydroxy benzophenone and nano zinc oxide) on the weathering degradation of water-based acrylic coating on beech wood was investigated. The wood specimens were coated by brush and then weathered naturally for six months. The obtained results showed that the use of nano zinc oxide reduced color changes and mold growth on the surface of weathered samples. However, the results of contact angle, pull-off adhesion, colorimeter and FTIR revealed that the dihydroxyl benzophenone was not effective in preventing weathering degradation of coated wood.

scholarly journals Water Repellent Effect and Dimension Stability of Beech Wood Impregnated with Nano-Zinc Oxide

BioResources ◽  
2013 ◽  
Vol 8 (4) ◽  
Author(s):  
Mojtaba Soltani ◽  
Abdollah Najafi ◽  
Samane Yousefian ◽  
Hamid Reza Naji ◽  
Edi Suhaimi Bakar
Keyword(s):  
Zinc Oxide ◽  
Beech Wood ◽  
Water Repellent ◽  
Repellent Effect ◽  
Nano Zinc Oxide ◽  
Dimension Stability ◽  
Nano Zinc

Effect of Calcination on the Basic Strength of Surface Modified Nano-Zinc Oxide Characterised by FTIR and Back Titration Methods

2015 ◽  
Vol 1107 ◽  
pp. 326-332
Author(s):  
Abdul Rahim Yacob ◽  
Kamaluddeen Suleiman Kabo
Keyword(s):  
Zinc Oxide ◽  
Metal Oxides ◽  
Base Catalysis ◽  
Nano Zinc Oxide ◽  
Back Titration ◽  
And Performance ◽  
Nano Zinc ◽  
Surface Modified ◽  
Heterogeneous Base ◽  
Basic Strength

The use of metal oxides in heterogeneous base catalysis has gained a large interest due to their application in many chemical and industrial processes and is environmental friendly. Basic metal oxides are commonly used and their structures, morphology and performance can be modified by method of preparation and thermal activation. In this study, surface modified amphoteric zinc oxide was prepared via hydration-dehydration method and characterised by TGA and FTIR. The basic strength at various temperatures is characterised by FTIR and back titration analyses. The results shows that surface modified zinc oxide has the highest basic strength of 1.453mmolg-1at 400°C making it a relatively good and suitable compound for use in heterogeneous basic catalysis. This result is also supported by FTIR spectra which show possible relationship between the Lewis O2-and increasing basic strength.

Study on the Viscosity and Dispersion Stability of AA-AMPS Copolymer on Nano Zinc Oxide

2014 ◽  
Vol 692 ◽  
pp. 288-291
Author(s):  
Yue Long Liu ◽  
Jia Liu
Keyword(s):  
Zinc Oxide ◽  
Radical Polymerization ◽  
Polyacrylic Acid ◽  
Sulfonic Acid ◽  
Dispersion Stability ◽  
Polymerization Process ◽  
Mass Ratio ◽  
Nano Zinc Oxide ◽  
Nano Zinc

The copolymer of sodium polyacrylic acid and 2-acrylamide-2-methyl propane sulfonic acid (AMPS) was prepared by radical polymerization process, the effect of mass ratio of AA/AMPS on the viscosity of AA-AMPS copolymer were investigated. Results showed that when the mole ratio of AA/AMPS was 3:1, it had the least viscosity. The dispersion stability of synthesized AA-AMPS copolymer for nanozinc oxide was tested.

Basic zinc carbonate as a precursor in the solvothermal synthesis of nano-zinc oxide

2015 ◽  
Vol 86 ◽  
pp. 347-353 ◽  
Author(s):  
Alojz Anžlovar ◽  
Marjan Marinšek ◽  
Zorica Crnjak Orel ◽  
Majda Žigon
Keyword(s):  
Zinc Oxide ◽  
Solvothermal Synthesis ◽  
Zinc Carbonate ◽  
Nano Zinc Oxide ◽  
Nano Zinc

scholarly journals Application of nano zinc oxide (nZnO) for the removal of triphenyltin chloride (TPT) from dockyard wastewater

Water SA ◽  
2014 ◽  
Vol 40 (4) ◽  
pp. 659 ◽  
Author(s):  
SA Olushola ◽  
SF Olalekan ◽  
AA Folahan ◽  
FP Leslie ◽  
BJ Ximba
Keyword(s):  
Zinc Oxide ◽  
Nano Zinc Oxide ◽  
Triphenyltin Chloride ◽  
Nano Zinc
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