Synthesis and characterization of polyacrylic acid–zinc oxide composites

1991 ◽  
Vol 6 (11) ◽  
pp. 2452-2456 ◽  
Author(s):  
A. Padilla ◽  
A. Vázquez ◽  
V.M. Castaño
Keyword(s):  
Zinc Oxide ◽  
Mechanical Strength ◽  
Strain Rate ◽  
Polyacrylic Acid ◽  
Synthesis And Characterization ◽  
Curing Time ◽  
Zno Powders ◽  
Oxide Composites

Zinc oxide (ZnO) powders were mixed with Polyacrylic Acid (PAA) to form waterless cements. The optimal ZnO/PAA ratio in terms of mechanical strength was found. Also, the role of the relation ZnO to PAA, the curing time, and the strain rate on the final properties of the composites was studied.

Synthesis and characterization of a hydroxyapatite-zinc oxide-polyacrylic acid concrete

1994 ◽  
Vol 19 (5-6) ◽  
pp. 309-315 ◽  
Author(s):  
D. Vélez ◽  
I.H. Arita ◽  
M.V. García-Garduño ◽  
V.M. Castaño
Keyword(s):  
Zinc Oxide ◽  
Polyacrylic Acid ◽  
Synthesis And Characterization

Synthesis and Characterization of Nanocrystalline ZnO Powders by a Direct Thermal Decomposition Route Using Zinc Nitrate Hexahydrate

2013 ◽  
Vol 770 ◽  
pp. 68-71 ◽  
Author(s):  
Supphadate Sujinnapram ◽  
Uraiphorn Termsuk ◽  
Atcharawan Charoentam ◽  
Sutthipoj Sutthana
Keyword(s):  
Thermal Decomposition ◽  
Crystallization Temperature ◽  
Zinc Nitrate ◽  
Zinc Nitrate Hexahydrate ◽  
Absorption Peak ◽  
Synthesis And Characterization ◽  
Nitrate Hexahydrate ◽  
Different Temperatures ◽  
Zno Powders

The nanocrystalline ZnO powders were synthesized by a direct thermal decomposition using zinc nitrate hexahydrate as starting materials. The precursor was characterized by TG-DTA to determine the thermal decomposition and crystallization temperature which was found to be at 325 oC. The precursors were calcined at different temperatures of 400, 500, and 600°C for 4 h. The structure of the prepared samples was studied by XRD, confirming the formation of wurtzite structure. The synthesized powders exhibited the UV absorption below 400 nm (3.10 eV) with a well defined absorption peak at around 285 nm (4.35 eV). The estimated direct bandgaps were obtained to be 3.19, 3.16, and 3.14 eV for the ZnO samples thermally decomposed at 400, 500, and 600°C, respectively.

Synthesis and characterization of coal fly ash supported zinc oxide catalyst for biodiesel production using used cooking oil as feed

2021 ◽  
Vol 170 ◽  
pp. 302-314
Author(s):  
Adeyinka S. Yusuff ◽  
Aman K. Bhonsle ◽  
Jayati Trivedi ◽  
Dinesh P. Bangwal ◽  
Lok P. Singh ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Fly Ash ◽  
Oxide Catalyst ◽  
Coal Fly Ash ◽  
Biodiesel Production ◽  
Synthesis And Characterization ◽  
Cooking Oil ◽  
Used Cooking Oil
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