Polylactic acid based Janus membranes with asymmetric wettability for directional moisture transport with enhanced UV protective capabilities

Gu, Yingshu; Wu, Jian; Hu, Miaomiao; Pi, Haohong; Wang, Rui; Zhang, Xiuqin

doi:10.1039/d1ra07912c

Cited by 15 publications

(6 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this study, eco-friendly PLA was successfully combined with TiO 2 NPs to fabricate hydrophobic/superhydrophilic Janus membranes that exhibited a greater water vapor permeability on the outer (superhydrophilic) side compared to the inner (hydrophobic) side for the optimum 10 min electrospinning duration. Increasing the electrospinning duration resulted in a thicker PLA nanofiber accumulation that blocked the fibrous membrane’s pores and channels, reducing the water vapor permeability [ 104 ].…”

Section: Electrospun Fibers Used For Smart and Protective Clothingmentioning

confidence: 99%

Use of Electrospinning for Sustainable Production of Nanofibers: A Comparative Assessment of Smart Textiles-Related Applications

Stramarkou,

Tzegiannakis,

Christoforidi

et al. 2024

Polymers

View full text Add to dashboard Cite

Textile production is a major component of the global industry, with sales of over USD 450 billion and estimations of an 84% increase in their demand in the next 20 years. In recent decades, protective and smart textiles have played important roles in the social economy and attracted widespread popularity thanks to their wide spectrum of applications with properties, such as antimicrobial, water-repellent, UV, chemical, and thermal protection. Towards the sustainable manufacturing of smart textiles, biodegradable, recycled, and bio-based plastics are used as alternative raw materials for fabric and yarn production using a wide variety of techniques. While conventional techniques present several drawbacks, nanofibers produced through electrospinning have superior structural properties. Electrospinning is an innovative method for fiber production based on the use of electrostatic force to create charged threads of polymer solutions. Electrospinning shows great potential since it provides control of the size, porosity, and mechanical resistance of the fibers. This review summarizes the advances in the rapidly evolving field of the production of nanofibers for application in smart and protective textiles using electrospinning and environmentally friendly polymers as raw materials, and provides research directions for optimized smart fibers in the future.

show abstract

Section: Electrospun Fibers Used For Smart and Protective Clothingmentioning

confidence: 99%

Use of Electrospinning for Sustainable Production of Nanofibers: A Comparative Assessment of Smart Textiles-Related Applications

Stramarkou,

Tzegiannakis,

Christoforidi

et al. 2024

Polymers

View full text Add to dashboard Cite

show abstract

“…To avoid increased sweat/moisture on the skin, which causes discomfort in such cases, state-of-the-art textiles tend to focus on sweat removal. , In recent years, a Janus membrane with asymmetric wettability induced by abrupt changes in morphological or chemical composition along the vertical direction, viz, a membrane with a typical feature of lyophobic layer on one side and a lyophilic layer on the other side, has been proved as a “liquid diode”, which can drive liquid transport from the lyophobic layer to the lyophilic layer but block it in the reverse direction. − It has attracted much attention and has been considered a good candidate with great potential for wet management. − Many strategies, such as two-layered compositing, immiscible component diffusion-induced phase separation, diffusion-based postmodification, and energy irradiation-induced postmodification, have been used to design and fabricate Janus membranes. − The related research had also been carried out by our group. Several kinds of Janus membranes with anisotropic wettability and morphology were obtained, demonstrating that such Janus membranes have a unique directional liquid transport capacity. − …”

Section: Introductionmentioning

confidence: 99%

Janus Membrane Decorated by MXene Multilayered Nanoflakes for Wet–Thermal Management

Tian

et al. 2022

ACS Appl. Nano Mater.

Self Cite

View full text Add to dashboard Cite

Personal wet–thermal management, which focuses on adjusting the moisture and temperature in a “human skin–wearable fabric–external environment” microclimate system, is the basis for ensuring the comfort of human beings and has recently attracted tremendous attention owing to its substantial significant role not only in ameliorating the health conditions but also in smart textiles for personal protection, electronic wearable devices, health monitoring, and so on. However, wearable fabrics focusing on personal comfort, especially wet–thermal dual-mode management, viz., including both efficient sweat removal and heat retention performances that provide protection for outdoor sports or work in a cold environment, still present huge challenges in their design, fabrication, and practical application. A Janus membrane with asymmetric wettability (superhydrophobic/hydrophobic–superhydrophilic/hydrophilic) along the thickness direction shows a unique directional water transport capacity, acts as a “water transport diode”, and is expected to be helpful to expel sweat/moisture efficiently from the human body to the external environment. Herein, we fabricated a hydrophobic/hydrophilic Janus membrane decorated by MXene (Ti3C2T x ) multilayered nanoflakes with outstanding photothermal conversion capacity via facile electrospinning combined with in situ polymerization. By virtue of asymmetric wettability and directional wicking, water and moisture can be driven from the hydrophobic layer to the hydrophilic layer, providing the Janus membrane with excellent directional water and moisture transport capacity. Furthermore, the successful decoration of MXene multilayered nanoflakes imparts electrical-power-independent heat retention capacity to the Janus membrane, resulting from the excellent photothermal conversion capacity of MXene. This work provides an insight into the facile design of Janus membranes for wet–thermal management and establishes a promising strategy not only to maintain personal comfort to ameliorate the health conditions as well as to improve the work efficiency of outdoor laborers in a cold environment but also to guarantee the special functions of smart wearable and multifunctional fabrics.

show abstract

“…By leveraging this process, Janus 2D porous materials have found wide applications in collecting dispersed oil (e.g., emulsions) and water (e.g., fog). On the other hand, there has been a growing interest in human wet-thermal management, and these intelligent Janus fabrics can transport sweat from the inner hydrophobic side to the outer hydrophilic side, maintaining dry and comfortable skin. − Since the driving forces of unidirectional transport in Janus 2D porous materials arise from their asymmetric structure or properties, this does not require additional energy input. The unidirectional transport characteristic of Janus materials can also find applications in energy conservation and emission reduction, such as in building dehumidification …”

Section: Introductionmentioning

confidence: 99%

Designing Janus Two-Dimensional Porous Materials for Unidirectional Transport: Principles, Applications, and Challenges

Li,

Yang,

2024

ACS Appl. Polym. Mater.

View full text Add to dashboard Cite

Unidirectional liquid transport, facilitated by asymmetric properties or structures, has gained prominence in applications, such as liquid manipulation, water harvesting, and microfluidic systems. Janus two-dimensional (2D) porous materials, known for their unique capacity for unidirectional liquid transport, have attracted significant interest. This phenomenon is driven by the capillary force and Laplace pressure, enabling efficient liquid flow in a preferred manner. Leveraging this process, Janus 2D porous materials have found applications in a series of multiphase processes without additional energy input. Despite a growing body of researches in this area, there is a notable absence of a comprehensive review focusing on the fundamentals of Janus 2D porous materials with unidirectional liquid transport capacity. This Review aims to address this gap by summarizing present hypotheses, factors influencing unidirectional transport, construction strategies, and potential applications. Furthermore, the future of this field is forecast to present challenges and opportunities.

show abstract

Polylactic acid based Janus membranes with asymmetric wettability for directional moisture transport with enhanced UV protective capabilities

Abstract: The PLA-E/TiO2@PDA–PLA Janus membrane with asymmetric wettability exhibits efficient directional moisture transport and excellent UV protective capacity.

Cited by 15 publications

References 46 publications

Use of Electrospinning for Sustainable Production of Nanofibers: A Comparative Assessment of Smart Textiles-Related Applications

Use of Electrospinning for Sustainable Production of Nanofibers: A Comparative Assessment of Smart Textiles-Related Applications

Janus Membrane Decorated by MXene Multilayered Nanoflakes for Wet–Thermal Management

Designing Janus Two-Dimensional Porous Materials for Unidirectional Transport: Principles, Applications, and Challenges

Contact Info

Product

Resources

About