Fouling‐Proof Cooling (FP‐Cool) Fabric Hybrid with Enhanced Sweat‐Elimination and Heat‐Dissipation for Personal Thermal Regulation

Abstract

Passive cooling fabric that facilitates sweat-wicking and evaporation is highly desirable for promoting human body's thermal comfort and reducing energy consumption. However, highly hydrophilic sweat-wicking fabric fails to repel external fouling due to the contradiction between hydrophilicity and lyophobicity. Moreover, conventional passive cooling fabrics show limited evaporation capacity when they reach the adsorption limit in intense perspiration scenarios. Herein, a fouling-proof cooling (FP-Cool) fabric with an interactive functional structure design for highly-efficient personal thermal regulation is proposed by constructing spatially distributed superoleophobic Janus channels on an optimized heat conductive superomniphobic fabric. The dominant superomniphobicity and superoleophobic Janus feature endow the outer FP-Cool fabric with durable performance (up to 3000 cycles' abrasion) to repel oil/water-based contaminations. The Janus channels rapidly pull sweat out of the inner fabric for efficient evaporation, ensuring a dry sense of skin. The FP-Cool fabric preserves 40% higher thermal conductivity, and over 50% higher evaporation rate than conventional fabrics. In the sweat evaporation test, the FP-Cool fabric shows up to 100% reduction in sweat gain ratio to cotton fabric. The concept would have implications for intelligent textiles design, and the synthesis strategy can be applied in various applications such as oilwater separation and microfluidics control.

Integrated High Barrier and Efficient Moisture‐Wicking Multilayer Textile for Medical and Health Protection

“…properties. [21] Figure 2h illustrates the apparent water contact angle (WCA) variation of three layers in the MWPFM. WCA of the protective layer could always be maintained at 138°, displaying stable hydrophobicity.…”

Facile “Synergistic Inner–Outer Activation” Strategy for Nano‐Engineering of Nature‐Skin–Derived Wearable Daytime Radiation Cooling Materials

“…Furthermore, these devices should reflect sunlight to the maximum, to transfer as much human thermal radiation as possible and achieve the human body heat dissipation effect. [23][24][25][26] For this research, researchers have done a lot of work, and successfully prepared several flexible wearable radiation cooling fabrics with significant cooling effect. [27][28][29] Most wearable thermal management materials are nonrecyclable or non-degradable, threatening the environment.…”

Advances in special wettable materials for adsorption separation of high-viscosity crude oil/water mixtures

“…Even though the filter materials have a promising future in the field of oil/ water separation, they still have some shortcomings and challenges in practical applications. [23][24][25][26] First, the rough structures of special wettable filter materials are easily damaged, leading to the loss of wettability and oil/water separation selectivity. Besides, the filter materials cannot be used for in situ oil or water removal because oil-contaminated water must be first collected and then filtered.…”