Amphiphobic, Thermostable, and Stretchable PTFE Nanofibrous Membranes with Breathable and Chemical-Resistant Performances for Protective Applications

Abstract

Waterproof and breathable membranes (WBM) have diverse applications in outdoor apparel, wearable electronics, and medical hygiene because they can withstand liquid water penetration while simultaneously transmitting water vapor. Nevertheless, developing potential nontoxic WBM based on ecologically friendly solvents remains a significant issue. Therefore, we prepared polytetrafluoroethylene (PTFE) waterproof and permeable membranes (PWBM) with a remarkable moisture transfer rate of 11.9 kg m −2 d −1 , a high hydrostatic pressure of 81.5 kPa, and an astonishing tensile strain of 554%, so the produced PWBM demonstrates great capabilities. Besides, the obtained PWBM also has outstanding chemical resistance and appealing superhydrophobicity. The development of the subsequent generation of environmentally friendly WBM for protective garments may be therefore beneficial to the successful fabrication of such green smart fibrous membranes.

Flexible Puncture-Resistant Composites for Antistabbing Applications: Silica and Silicon Carbide Nanoparticle-/TPU-Coated Aramid Fabrics

“…However, in complex scenarios involving harsh chemical corrosion, the human body becomes more vulnerable to serious personal injuries. As a result, there is a growing demand for multifunctional flexible personal protective materials that can effectively resist threats such as corrosion, impact, cuts, and stab wounds in military, police, and civilian sectors. – Puncture-resistant materials can be classified into three categories based on their flexibility: rigid, semirigid, and flexible. , Traditional rigid and semirigid stab-resistant materials, such as metals and ceramics, provide effective protection against stabbing and cutting injuries. , However, their bulkiness can restrict the wearer’s mobility and comfort . Therefore, the design of flexible puncture and cut-resistant composites is of great practical importance in order to achieve a balance between protection and wearer comfort.…”