Sonochemical synthesis of flower-like ZnO assembled by hollow cones toward water vapor permeability and water resistance enhancement of waterborne film

Bao, Yan; Gao, Lu; Feng, Caiping; Ma, Jianzhong; Zhang, Wenbo; Liu, Chao; Simion, Demetra

doi:10.1016/j.jiec.2019.10.011

Cited by 17 publications

(7 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For more crystal and distinct morphology of the ZnO solid nanoparticles, the mixture was required to calcined at least for 3 h continuously at a temperature of 200 • C [35][36][37][38][39].…”

Section: Zno Synthesis Proceduresmentioning

confidence: 99%

Evaluation on Enhanced Heat Transfer Using Sonochemically Synthesized Stable Zno-Eg@Dw Nanofluids in Horizontal Calibrated Circular Flow Passage

et al. 2021

View full text Add to dashboard Cite

In this research, Zinc Oxide-Ethylene @ glycol distilled water based nanofluid was synthesized using the sonochemical method. The convective heat transfer properties of as synthesized nanofluid were observed for a closed single circular tube pipe in turbulent flow regimes. The prepared nanofluids were characterized by ultra violet spectroscopy (UV–VIS), UV–VIS absorbance, X-Ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Transmission electron microscopy (TEM) and stability analysis. Five calibrated k-type thermocouples were mounted on the surface of the test section. Analytical data related to heat transfer properties of the synthesized nanofluid for the heat exchanger, incorporated with the closed circular tube test section were collected. The addition of ZnO solid nanoparticles in the EG@DW mixture enhanced the value of thermal conductivity and other thermophysical characteristics of the nanofluids. Maximum thermal conductivity was observed at 45 °C for using 0.1 wt.% of ZnO nanoparticles EG@DW nanofluid. Increasing the wt.% of ZnO solid nanoparticles in the EG@DW mixture had increased the thermal conductivity subsequently with change in temperature from 20 to 45 °C. Furthermore, Nusselt numbers of ZnO-EG@DW-based nanofluid was estimated for the various concentration of ZnO present in EG@DW-based fluid. The presence of ZnO solid nanoparticles into the EG@DW base fluid escalate the Nusselt (Nu) number by 49.5%, 40.79%, 37% and 23.06% for 0.1, 0.075, 0.05 and 0.025 wt.% concentrations, respectively, at room temperature. Varying wt.% of ZnO (0.1, 0.075, 0.05 and 0.025) nanoparticles had shown improved heat transfer (h) properties compared to the base fluid alone. The absolute average heat transfer of ZnO-EG@DW nanofluid using the highest concentration of 0.1 wt.% was improved compared to the EG@DW mixture. The magnitude of absolute average heat transfer was increased from 600 W/m2k for the EG@DW mixture to 1200 W/m2k for ZnO-EG@DW nanofluid. Similarly, the heat transfer improvement for the other three wt.% (0.075, 0.05 and 0.025) was noticed as 600–1160, 600–950 and 600–900 W/m2k, respectively, which is greater than base fluid.

show abstract

Section: Zno Synthesis Proceduresmentioning

confidence: 99%

Evaluation on Enhanced Heat Transfer Using Sonochemically Synthesized Stable Zno-Eg@Dw Nanofluids in Horizontal Calibrated Circular Flow Passage

et al. 2021

View full text Add to dashboard Cite

show abstract

“…However, acrylate polymers contain polar ester groups in their molecular chain that decompose under certain conditions. Furthermore, acrylate polymers, especially linear polymers, tend to be sticky at high temperature, brittle at low temperature, and weak . Fortunately, most of the advantages of acrylate emulsion can be used to enhance the properties of waterborne polyurethane and thus improve the material’s performance. , Therefore, waterborne polyurethane acrylate (PUA) film is widely adopted because of its excellent flexibility, good adhesion with substrates, and adjustable mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Acrylate-Modified Aqueous Polyurethane Based on Oxime–Carbamate Structure with Transparent, Healable, and Fluorescent Properties

Bai

Liu

et al. 2023

ACS Appl. Polym. Mater.

View full text Add to dashboard Cite

Acrylate-modified aqueous polyurethane has become a widely used material due to its good physical and versatile chemical properties. However, owing to damage resulting from daily use, which often limits polymer performance, it is important to prepare a transparent and repairable polyurethane material. In this work, an acrylate-modified aqueous polyurethane based on the reversible structure of oxime–carbamate of butanedione oxime (POU) was prepared. The visible-light transmittance of the POU film could exceed 70%; its tensile strength and elongation at break could reach 3.0 MPa and 493%, respectively, and the POU film had a tensile strength of 3.9 MPa and elongation at break of 589% after repair. In addition, the POU has adjustable fluorescence properties, which makes this material suitable for potential application in the field of information encryption.

show abstract

“…Indeed, a chemical (wet) process plays a significant role in the synthesis of the ZnO with very small particle size, known as active ZnO (A-ZnO). This process could be done by a variety of techniques, for example, mechanochemical process, [4][5][6][7] controlled precipitation, [8][9][10] sol-gel method, [11][12][13][14][15] hydrothermal, [16][17][18][19][20] solvothermal, [21][22][23] sonochemical, [24][25][26][27] and so forth.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of zinc oxide‐coated microcrystalline cellulose and its application in truck tire tread compounds

Boopasiri

Thaptong

Sae‐Oui

et al. 2022

J of Applied Polymer Sci

View full text Add to dashboard Cite

The severe threat to aquatic environment from zinc oxide (ZnO) in tread debris has become a serious issue for tire manufacturers. Various attempts including the utilization of composite ZnO have therefore been made to reduce ZnO content in tread compounds. In this study, a new composite ZnO was prepared by depositing ZnO nanoparticles on microcrystalline cellulose (MCC) through hydrothermal reactions, called M-ZnO. After characterization by various techniques, cure activation efficiency of M-ZnO in truck tire tread compound was investigated and compared with that of active ZnO (A-ZnO).The results showed that M-ZnO contained approximately 66.7% w/w of ZnO and had comparable specific surface area to A-ZnO. Regardless of the ZnO type, crosslink density increased with increasing ZnO content up to 3 phr leading to the improved mechanical properties of the rubber vulcanizates, that is, hardness, modulus, and abrasion resistance. Tensile and tear strengths, however, were found maximum at 2 phr of both A-ZnO and M-ZnO. Although wet grip index was independent of ZnO content, rolling resistance tended to reduce with increasing ZnO content. The results clearly show the great potential of utilizing M-ZnO to replace conventional A-ZnO in tread compounds when more stringent environmental regulations are imposed.

show abstract

Sonochemical synthesis of flower-like ZnO assembled by hollow cones toward water vapor permeability and water resistance enhancement of waterborne film

Cited by 17 publications

References 44 publications

Evaluation on Enhanced Heat Transfer Using Sonochemically Synthesized Stable Zno-Eg@Dw Nanofluids in Horizontal Calibrated Circular Flow Passage

Evaluation on Enhanced Heat Transfer Using Sonochemically Synthesized Stable Zno-Eg@Dw Nanofluids in Horizontal Calibrated Circular Flow Passage

Acrylate-Modified Aqueous Polyurethane Based on Oxime–Carbamate Structure with Transparent, Healable, and Fluorescent Properties

Fabrication of zinc oxide‐coated microcrystalline cellulose and its application in truck tire tread compounds

Contact Info

Product

Resources

About