scholarly journals The surface morphology and dynamic impact properties with rebounding and splashing of water droplet on phase separation and breath figure assisted electrospinning films

2021 ◽  
Vol 24 (1) ◽  
pp. 162-172
Author(s):  
Que Kong ◽  
Zhiguang Li ◽  
Xuehong Ren ◽  
Hao Gu ◽  
Wujun Ma
Keyword(s):  
Phase Separation ◽  
Surface Morphology ◽  
Water Droplet ◽  
Dynamic Impact ◽  
Impact Properties ◽  
Breath Figure

Degradable ultrathin high-performance photocatalytic hydrogen generator from porous electrospun composite fiber membrane with enhanced light absorption ability

2021 ◽  
Author(s):  
Qian-Yu Wang ◽  
Zheng-Min Zhang ◽  
Lin Liu ◽  
Lu Bai ◽  
Rui-Ying Bao ◽  
...  
Keyword(s):  
Phase Separation ◽  
Light Absorption ◽  
High Performance ◽  
Composite Fiber ◽  
Channel Structure ◽  
Separation Mechanism ◽  
Hydrogen Generator ◽  
Fiber Membrane ◽  
Breath Figure ◽  
Phase Separation Mechanism

Poly(L-lactide) (PLA)/TiO2/Pt composite fiber membrane with internal porous channel structure is fabricated by skillfully tuning the breath figure mechanism and vapor induced phase separation mechanism with solute and solvent matching...

scholarly journals Surface morphology of electrospun PLA fibers: mechanisms of pore formation

RSC Advances ◽  
2014 ◽  
Vol 4 (83) ◽  
pp. 44082-44088 ◽  
Author(s):  
Lakshmi Natarajan ◽  
Jackie New ◽  
Aravind Dasari ◽  
Suzhu Yu ◽  
Munirah Abdul Manan
Keyword(s):  
Phase Separation ◽  
Relative Humidity ◽  
Surface Morphology ◽  
Pore Formation ◽  
Surface Pores

Interaction of relative humidity with solvent(s) is relatively more important in obtaining surface pores than solvent volatility and phase separation.

scholarly journals Do ZnO and Al2O3 Nanoparticles Improve the Anti-Bacterial Properties of Cellulose Acetate-Chitosan Membrane?

2018 ◽  
Vol 156 ◽  
pp. 08009 ◽  
Author(s):  
Titik Istirokhatun ◽  
Ulva Yuni ◽  
Pertiwi Andarani ◽  
Heru Susanto
Keyword(s):  
Antimicrobial Activity ◽  
Phase Separation ◽  
Surface Morphology ◽  
Cellulose Acetate ◽  
Water Permeability ◽  
Al2o3 Nanoparticles ◽  
Gram Negative Bacteria ◽  
Gram Negative ◽  
Chitosan Membrane ◽  
Chitosan Membranes

Biofouling, due to the existence of bacteria in water, becomes one of the barriers in cellulose acetate (CA) membrane applications. Although chitosan has been incorporated into CA membranes, its antimicrobial activity has not been improved significantly yet. In this study, cellulose acetate-chitosan membranes were prepared by modification using ZnO and Al2O3 nanoparticles during phase separation method. The membranes were then characterized in term of water permeability, and surface morphology. The anti-bacteria property was examined by using gram-negative bacteria. Modification of cellulose acetate-chitosan membranes with ZnO and Al2O3 nanoparticles have not shown optimal results where no clear zones around the membrane are visible.

Facile preparation of patterned petal-like PLA surfaces with tunable water micro-droplet adhesion properties based on stereo-complex co-crystallization from non-solvent induced phase separation processes

2016 ◽  
Vol 4 (31) ◽  
pp. 12058-12064 ◽  
Author(s):  
Ailin Gao ◽  
Yongqing Zhao ◽  
Qing Yang ◽  
Yinyi Fu ◽  
Lixin Xue
Keyword(s):  
Phase Separation ◽  
Water Droplet ◽  
Separation Processes ◽  
Adhesion Properties ◽  
Membrane Surfaces ◽  
Rose Petal ◽  
Facile Preparation

A facile method to prepare rose petal-like quasi-superhydrophobic poly(lactide) (PLA) membrane surfaces with tunable water droplet adhesion properties.

scholarly journals Effect of TiO2 Powder on the Surface Morphology of Micro/Nanoporous Structured Hydrophobic Fluoropolymer Based Composite Material

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
Bichitra Nanda Sahoo ◽  
Balasubramanian Kandasubramanian ◽  
Amrutha Thomas
Keyword(s):  
Phase Separation ◽  
Surface Morphology ◽  
Polymer Composite ◽  
Polyvinylidene Fluoride ◽  
Industrial Applications ◽  
Nanoporous Structure ◽  
Hydrophobic Surfaces ◽  
Water Contact ◽  
Maximum Water ◽  
The Impact

The present work reports a simple and effective way to produce hydrophobic foams with polyvinylidene fluoride (PVDF) and TiO2 by using a phase separation technique. This method involved the phase separation during the deposition of PVDF from its DMF solution with nonsolvent water in the presence of TiO2. The surface morphology of hydrophobic surfaces was characterized by Field Emission Scanning Electron Microscope (FESEM). The maximum water contact angle of 129° was observed. The results confirm that the surface texture of polymer composite exhibits mixture of microporous and nanoporous structure. The impact of TiO2 on the wettability property of polymer composite has been studied. The proposed methodology might find applications in the preparation of hydrophobic surfaces for industrial applications.

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