Prewetting Polypropylene-Wood Pulp Fiber Composite Nonwoven Fabric for Oil–Water Separation

2020 ◽  
Vol 12 (41) ◽  
pp. 46923-46932
Author(s):  
Zhishan Yuan ◽  
Zunwen Ke ◽  
Yinghua Qiu ◽  
Lijuan Zheng ◽  
Yang Yang ◽  
...  
Keyword(s):  
Fiber Composite ◽  
Nonwoven Fabric ◽  
Wood Pulp ◽  
Pulp Fiber ◽  
Water Separation ◽  
Oil Water Separation ◽  
Oil Water ◽  
Composite Nonwoven ◽  
Wood Pulp Fiber

High Adhesion Superhydrophobic Surface Constructed by PDMS-co-PMHS Coatings Embedded with SiO2 Particles

2021 ◽  
Vol 8 (3) ◽  
pp. 23-32
Author(s):  
Wei Zhang ◽  
Shang Hao ◽  
Mingyang Chen ◽  
Bo Yang ◽  
Yuan Xie ◽  
...  
Keyword(s):  
Superhydrophobic Surface ◽  
Flexible Substrate ◽  
Nonwoven Fabric ◽  
Water Impact ◽  
Water Contact ◽  
Water Separation ◽  
Superhydrophobic Coatings ◽  
High Adhesion ◽  
Oil Water Separation ◽  
Oil Water

Superhydrophobic surfaces have attracted attention due to their hydrophobic, self-cleaning, anti-icing, and oil/water separation properties. The present study used a nonwoven fabric as a flexible substrate and constructed a high-adhesive superhydrophobic surface by coating the fabric with polydimethylsiloxane (PDMS)-co -polymethyl hydrogen siloxane (PMHS) polymers and embedding mesoporous SiO2 nanoparticles. The water contact angle (WCA) of the superhydrophobic surface was up to 165.2° at a PDMS to PMHS ratio of 4:1. The adhesion to deionized water was 99.7 μN. High hydrophobicity was maintained, even after sandpaper abrasions and flowing water impact. The surface was resistant to acid, alkali, brine, strong oxidation, and heavy metal solutions. The coating exhibited anti-icing and oil/water separation properties. This study provides a facile and effective method for constructing multifunctional superhydrophobic coatings on flexible substrates.

A multi-function textile with pH-induced switch wettability transition for controllable oil−water separation

2021 ◽  
pp. 004051752110569
Author(s):  
Long Feng ◽  
Yimiao Hou ◽  
Qingqing Hao ◽  
Mingxing Chen ◽  
Shuo Wang ◽  
...  
Keyword(s):  
Contact Angle ◽  
Separation Efficiency ◽  
Nonwoven Fabric ◽  
Dip Coating ◽  
Municipal Sewage ◽  
Alkaline Condition ◽  
Separation Performance ◽  
Water Separation ◽  
Oil Water Separation ◽  
Oil Water

The deterioration of water ecology caused by the discharge of oil spill wastewater, industrial sewage, and municipal sewage has attracted wide attention worldwide. Thus, it is significant to design a simple, environmentally friendly approach to separate oil–water mixtures. In this work, three different fabrics with pH-induced wettability transition were prepared by a dip-coating process for oil and water separation. The dip-coating fabrics had the advantages of oil–water separation, photocatalytic degradation, and recycling. Polyethylene terephthalate/polyamide nonwoven fabric was used as the substrate materials of the fabric. The carboxylic acid-modified TiO2 endowed the fabric with hydrophilicity–hydrophobicity and photocatalytic properties. The Fe3O4 nanoparticles obtained by the coprecipitation method provided magnetism for the fabric, facilitating the recycling of the fabric and improving the hydrophobicity of the fabric. The fabrics coated with dipping solutions were superhydrophobic in a neutral environment and hydrophilic in an alkaline environment. Among the three coated fabrics, the fabric coated with stearic acid/TiO2-Fe3O4 (FST) had the most satisfying oil–water separation performance and durability. Under the neutral condition, the contact angle of the FST was 151° and the separation efficiency was 98%. Under the alkaline condition, the underwater oil contact angle of the FST was 150° and the separation efficiency was 95%. After 15 cycles, the oil–water separation rate of the FST was still higher than 90%. Due to the presence of TiO2, the coated fabric had an exceptional performance in the photodegradation of organic pollutants (69.9%). In addition, the fabrics can be quickly recovered due to magnetism.

Smart nonwoven fabric with reversibly dual-stimuli responsive wettability for intelligent oil-water separation and pollutants removal

2020 ◽  
Vol 383 ◽  
pp. 121123 ◽  
Author(s):  
Duan-Chao Wang ◽  
Xiaogang Yang ◽  
Hou-Yong Yu ◽  
Jiping Gu ◽  
Dongming Qi ◽  
...  
Keyword(s):  
Nonwoven Fabric ◽  
Stimuli Responsive ◽  
Water Separation ◽  
Oil Water Separation ◽  
Oil Water ◽  
Pollutants Removal

Polypropylene Nonwoven Fabric@Poly(ionic liquid)s for Switchable Oil/Water Separation, Dye Absorption, and Antibacterial Applications

ChemSusChem ◽  
2018 ◽  
Vol 11 (6) ◽  
pp. 1092-1098 ◽  
Author(s):  
Yongyuan Ren ◽  
Jiangna Guo ◽  
Qian Lu ◽  
Dan Xu ◽  
Jing Qin ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Nonwoven Fabric ◽  
Water Separation ◽  
Dye Absorption ◽  
Oil Water Separation ◽  
Oil Water ◽  
Poly Ionic Liquid

Facile Fabrication of Superhydrophobic and Magnetic Poly(lactic acid) Nonwoven Fabric for Oil–Water Separation

2020 ◽  
Vol 59 (19) ◽  
pp. 9127-9135 ◽  
Author(s):  
Qingtao Zeng ◽  
Piming Ma ◽  
Xiaojing Su ◽  
Dehui Lai ◽  
Xuejun Lai ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Nonwoven Fabric ◽  
Poly Lactic Acid ◽  
Water Separation ◽  
Oil Water Separation ◽  
Facile Fabrication ◽  
Oil Water

Polylactic Acid Nonwoven Fabric Surface Modified with Stereocomplex Crystals for Recyclable Use in Oil/Water Separation

2020 ◽  
Vol 2 (7) ◽  
pp. 2509-2516
Author(s):  
Chenxi Zhu ◽  
Wei Jiang ◽  
Jinglei Hu ◽  
Ping Sun ◽  
Aimin Li ◽  
...  
Keyword(s):  
Polylactic Acid ◽  
Nonwoven Fabric ◽  
Water Separation ◽  
Oil Water Separation ◽  
Oil Water ◽  
Surface Modified ◽  
Fabric Surface
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