Results 221 to 230 of about 159,828 (242)

Ultrathin Thin-Film Composite Polyamide Membranes Constructed on Hydrophilic Polyvinyl Alcohol Decorated Support Toward Enhanced Nanofiltration Performance.

Environmental Science and Technology, 2020
Traditional polyamide-based interfacial polymerized nanofiltration (NF) membranes exhibit upper bound features between water permeance and salt selectivity. Breaking the limits of the permeability and rejections of these composite NF membranes are highly
Xuewu Zhu, Xiaoxiang Cheng, Xinsheng Luo, Yatao Liu, Daliang Xu, Xiaobing Tang, Zhendong Gan, Liu Yang, Guibai Li, Heng Liang   +9 more
semanticscholar   +1 more source

Intrinsic Nanoscale Structure of Thin Film Composite Polyamide Membranes: Connectivity, Defects, and Structure-Property Correlation.

Environmental Science and Technology, 2020
Transport of water, solutes, and contaminants through a thin film composite (TFC) membrane is governed by the intrinsic structure of its polyamide separation layer.
Xiaoxiao Song, Bowen Gan, S. Qi, Haofei Guo, C. Tang, Yong Zhou, Cong-jie Gao   +6 more
semanticscholar   +1 more source

Enthalpic and Entropic Selectivity of Water and Small Ions in Polyamide Membranes.

Environmental Science and Technology, 2021
While polyamide reverse osmosis and nanofiltration membranes have been extensively utilized in water purification and desalination processes, the molecular details governing water and solute permeation in these membranes are not fully understood. In this
I. Shefer, Ophir Peer-Haim, Olga Leifman, Razi Epsztein   +3 more
semanticscholar   +1 more source

Phosphonium Modification Leads to Ultrapermeable Antibacterial Polyamide Composite Membranes with Unreduced Thickness

Advances in Materials, 2020
Water transport rate in network membranes is inversely correlated to thickness, thus superior permeance is achievable with ultrathin membranes prepared by complicated methods circumventing nanofilm weakness and defects.
Huawen Peng, Wen-Hai Zhang, W. Hung, Naixin Wang, Jian Sun, Kueir-Rarn Lee, Quan‐Fu An, Cheng-Mei Liu, Qiang Zhao   +8 more
semanticscholar   +1 more source

Effect of fiber surface treatment with silane coupling agents and carbon nanotubes on mechanical properties of carbon fiber reinforced polyamide 6 composites

Polymer Composites
The mechanical properties of carbon fiber (CF) reinforced thermoplastic polymer composites are primarily governed by the interphase between CFs and matrix.
Haoqiang Du, Guijun Xian, Jingwei Tian, Zirong Ma, Chenggao Li, Meiyin Xin, Yunfeng Zhang   +6 more
semanticscholar   +1 more source

Reprocessing of Covalent Adaptable Polyamide Networks through Internal Catalysis and Ring-Size Effects.

Journal of the American Chemical Society, 2021
Here, we report the introduction of internally catalyzed amide bonds to obtain covalent adaptable polyamide networks that rely on the dissociation equilibrium between dicarboxamides and imides.
Filip Van Lijsebetten, Yann Spiesschaert, Johan M. Winne, F. D. Du Prez   +3 more
semanticscholar   +1 more source

Dissecting the Role of Substrate on the Morphology and Separation Properties of Thin Film Composite Polyamide Membranes: Seeing is Believing.

Environmental Science and Technology, 2020
Recent studies show that the surface morphology of a thin film composite (TFC) polyamide membrane depends strongly on its porous substrate. Nevertheless, the underlining mechanisms and the effects on membrane separation performance remain controversial ...
L. Peng, Zhikan Yao, Zhe Yang, Haofei Guo, C. Tang   +4 more
semanticscholar   +1 more source

MOF-Mediated Interfacial Polymerization to Fabricate Polyamide Membranes with a Homogeneous Nanoscale Striped Turing Structure for CO2/CH4 Separation.

ACS Applied Materials and Interfaces, 2021
Control of the surface morphology of polyamide membranes fabricated by interfacial polymerization is of great importance in dictating the separation performance. Herein, polyamide membranes with a specific nanoscale striped Turing structure are generated
Chengli Jiao, Xiangju Song, Xiaoqian Zhang, Lixian Sun, Heqing Jiang   +4 more
semanticscholar   +1 more source

Polyamide amine/aramid nanofiber composite aerogels as an ultra-high capacity adsorbent for Congo red removal

, 2021
Industrial wastewater containing dyes has led to global water scarcity and been severely damaging to human health. The demand for the exploration of practical and cost-effective dye removal treatment is exploding. Here, we developed an ultrahigh-capacity
Zhichao He, Fan Wu, Shengjie Guan, Li Liu, J. Li, Yudong Huang   +5 more
semanticscholar   +1 more source

Graphene quantum dot engineered ultrathin loose polyamide nanofilms for high-performance nanofiltration

Journal of Materials Chemistry A, 2020
Graphene quantum dot-mediated interfacial polymerization generates ultrathin loose polyamide nanofilms for high-performance nanofiltration.
Yafei Li, Xinda You, Ya Li, Jinqiu Yuan, Jianliang Shen, Runnan Zhang, Hong Wu, Yanlei Su, Zhongyi Jiang   +8 more
semanticscholar   +1 more source