Sustained cooling comfort achieved through weft-knit spacer composite fabrics

Journal of Industrial Textiles, Journal Year: 2025, Volume and Issue: 55

Published: Feb. 13, 2025

This research introduces a groundbreaking weft-knitted spacer composite fabric designed for continuous cool feeling effect. Fabrication involved double-sided circular weft machine, incorporating ultra-high molecular weight polyethylene (UHMWPE) fiber as the surface layer and carbon-coated nylon monofilament layer. Quantitative assessments demonstrate remarkable thermal conductivity of 0.329 W·m⁻ 1 ·K⁻ developed fabric, significantly higher than polyester used comparison. The UHMWPE exhibited exceptional moisture wettability, with wicking height approaching 6 cm within initial 3 minutes water contact angle 44.47° after 40 seconds. enables capillary transport, diffusion, evaporation molecules along surface. process efficiently dissipates heat, resulting in distinct tactile sensation. To further enhance effect, was integrated needle-punched nonwoven fabrics containing phase change microcapsules (PCM) embedded viscose fiber. PCM demonstrated melting transition 25–35°C, an endothermic enthalpy 6.48 J/g. strategic incorporation not only amplifies fabric’s cooling capabilities but also advanced dimension temperature regulation, maintaining difference approximately 1.2°C between upper lower surfaces fabric. findings underscore multifaceted advantages, positioning it promising solution diverse applications. Infrared imaging revealed ability to maintain over time compared while compression recovery tests showed its capacity provide good mechanical support distinctive three-stage process. innovative integration materials yields superior management properties, making ideal applications ranging from apparel seating materials. quantitative result, coupled synergistic effects microcapsules, underscores potential redefine comfort functionality textiles. serves foundation future advancements textile technologies, setting stage creation that offer sustained cooling, improved comfort, enhanced user experiences.

Language: Английский

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Ultrafast Thermal Conduction of Phase Change Fiber Enabled by Sheath Confinement‐Induced Ordered Orientation of Hydroxylated BNNs

Small, Journal Year: 2025, Volume and Issue: unknown

Published: March 5, 2025

Phase change fibers (PCFs) are increasingly popular in thermal storage and release applications, such as temperature management. However, a simple but effective integration of conductive materials into PCFs to deliver ultrafast conduction remains big challenge. Herein, facile one-pot coaxial wet spinning strategy based on sheath-confinement-induced orientation arrangement hydroxylated boron nitride nanosheets (BNNs-OH) is proposed fabricate the high-performance PCFs. For core-sheath PCFs, cellulose nanofiber (CNF)-reinforced paraffin (CNF/PW) emulsions serve phase core, while dissolved well-dispersed BNNs-OH act sheath precursor. By increasing extrusion speed liquid contraction fiber gradually finalized induce alignment confinement effect. Consequently, highly oriented (f = 0.8) endow with high transition enthalpy (125.1 J g-1), excellent conductivity (10.15 W m-1K-1), rapid heat transfer rate (1.6 cm s-1); moreover, as-prepared show good tensile strength (11.21 MPa) leakage-proof (0.13%). The combined thermochromic dyes for functional fabrics or applied management phone, demonstrating dissipation.

Language: Английский

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Bio-based composite hydrogel/film reinforced by hyperbranched lignin nanoparticles: Robustness, thermostability, thermal insulation and UV shielding

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: unknown, P. 142175 - 142175

Published: March 1, 2025

Language: Английский

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Highly elastic phase change fibers for wearable solar-thermal regulation textiles

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 124, P. 116885 - 116885

Published: May 2, 2025

Language: Английский

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