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This study developed an environmentally friendly, highly elastic nanofibrous membrane with excellent waterproof and breathable properties through electrospinning technology and innovative material design.
The study aims to abandon fluorinated chemicals and use green materials based on polyurethane to meet the needs of sustainable development.
The resulting membrane has high tensile strength and large elongation at break, as well as good hydrostatic pressure and water vapor transmission rate (WVT), and maintains stable performance after multiple washing and stretching.
This study provides new environmentally friendly solutions for protective equipment, medical health and filtration materials, with significant potential for industrial applications.
This paper discusses a method for preparing and optimizing environmentally friendly, highly elastic nanofibrous membranes.
Through electrospinning technology, researchers used fluorine-free materials to develop composite membranes with excellent mechanical properties, waterproofness and breathability.
Environmentally friendly material selection: The use of fluorine-free materials to prepare high-performance nanofibrous membranes abandons traditional fluorinated chemicals, which meets environmental protection requirements and sustainable development.
Innovative preparation technology: Combining electrospinning technology and advanced material design, a uniform nanofiber network is constructed, and the structural distribution is optimized by adjusting the fiber diameter and pore size, giving the membrane material higher elasticity and protection performance.
Excellent performance: High tensile strength and high elongation at break provide better stability and durability for flexible applications. The prepared membrane has good water vapor permeability (WVT) and hydrostatic pressure, ensuring the dual needs of protection and comfort. The membrane maintains good performance after repeated stretching and washing, showing excellent durability.
Potential application prospects: The research results are applicable to personal protective equipment, medical fields and high-performance filtration materials, providing new solutions and technical paths for related industries.
Figure 1: Schematic diagram of the mechanism of ECO@SBS membrane
Figure 2: Optical image showing W&B
Figure 3: One-step electrospinning process
Figure 4: Photo of large-scale membrane (45×75 cm)
Figure 5: Optical image of the stretching process
Figure 6: W&B mechanism based on Young-Laplace equation and Fick's diffusion law
Figure 7: WCA, hydrostatic pressure, WVT rate, porosity and stretching properties of ECO@SBS membrane
Figure 8: Photo showing water vapor permeability and self-cleaning effect of ECO@SBS membrane. Variation of WCA and hydrostatic pressure with tensile strain. Cyclic stress-strain curves during biaxial stretching. Schematic diagram of the stretching process. SEM images of different deformation degrees. Photo showing the elasticity of ECO@SBS membrane.
Electrospinning Nanofibers Article Source:
https://www.sciencedirect.com/science/article/pii/S2452213924001256?via%3Dihub
