pISSN : 1229-9197 / eISSN : 1875-0052
Fibers and Polymers, the journal of the Korean Fiber Society, provides you with state-of-the-art
research in fibers and polymer science and technology related to developments in the textile
industry. Bridging the gap between fiber science and polymer science, the journal’s topics
include fiber structure and property, dyeing and finishing, textile processing, and apparel science.
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Latest Publication (Vol. 27, No. 4, Apr. 2026)
Bidirectional Thermoregulation Nanofiber Yarns and Their Application to Camel-Cashmere Fabric for Thermal Management
Zheru Sun Yong Ma Guodong Fang Kefei Yu Yixuan Li Keling Xu Yu Wang Gang Yao Miaomiao Hui Xin Xia
Bidirectional thermoregulation nanofiber yarns were fabricated using conjugate electrospinning and subsequently integrated into camel-cashmere fabric for enhanced thermal management. By incorporating microencapsulated phase-change materials (μPCMs) and optimizing their mass in the spinning solution, we obtained thermoregulation nanofiber yarns with superior thermal energy storage properties and mechanical performance. Optimal results were observed when the additive mass of µPCMs was 7.5 wt%, yielding nanofiber yarns with a latent heat of up to 39.10 J/g, a breaking force of 184.4 cN, and an elongation of 14.7%. The morphology and structure of these yarns were further refined by adjusting the spinning parameters. The optimized yarns were applied to the camel-cashmere fabric followed by an assessment using an infrared thermal imager. The thermoregulation camel-cashmere fabric exhibited slower temperature variations compared to the ordinary fabric, with maximum temperature differentials of 6.3 and 5.7 °C in the heating and cooling scenarios, respectively. The results indicated that the thermoregulation nanofiber yarns endowed the textile with dynamic thermal insulation from phase-change material and promises more intelligently and actively adjusting the temperature of the body microclimate according to the temperature change of the outside.
Performance Optimization of Silicon Aerogel and In-Depth Research on its Thermal Insulation Performance in Various Fabric Structures
Jiatong Liu Jie Dong Fukuan Lu Kaiyue Fu Mengyao Tang Runjun Sun
This study successfully synthesized high-performance silica aerogel with a continuous three-dimensional network structure via a sol-gel process. Compared with traditional insulating materials, this aerogel achieves superior thermal insulation efficiency per unit thickness due to its unique nanoporous structure. The material exhibited a high specific surface area of 888.65 m2/g and an average pore diameter of 62.3 nm, contributing to its exceptional thermal insulation properties. After hydrophobic modification, the aerogel achieved a water contact angle of 144°, confirming excellent hydrophobicity. This work systematically evaluated the thermal insulation performance of the aerogel applied as a coating and an interlayer in fabric composites. Key quantitative results demonstrate that the optimal thermal insulation was achieved with a 7 wt% aerogel content in an interlayer fabric structure. Under standard heat exposure testing (120 s), the backside temperature of the blank interlayer fabric stabilized at 31.5 °C, while that of the 7% aerogel-modified fabric stabilized at only 30.5 °C, resulting in a stable temperature difference of 1.0 °C. This corresponds to a 3.2% reduction in heat transfer, highlighting a significant improvement in thermal barrier performance. The findings validate the practical applicability of silica aerogel as an efficient thermal functional layer in flexible fabric composites, offering a lightweight, high-performance solution for thermal management in areas such as industrial protective clothing, building energy efficiency, and specialized apparel.
Luminescent Sensing Smart Yarns for Human Motion Visual Monitoring: Multiple Optimization Strategies and Performance Studies
Jiajia He Chenxi Lu Ying Chen Shengnan Min Xinru Xian Ze Wang Shan Wu Xiuli Du
Aiming at the problems of poor fastness, low sensitivity and poor repeatability of PPy coating of spandex filament sensor, FeOOH scaffold modification, pre-stretching and doping agent control were used to optimize the structure of PPy coating and sensing properties. ZnS:Cu2+ fluorescent layer for visual sensing were also composite for luminescent sensing. The results showed that the FeOOH scaffold significantly improved the deposition of PPy leading to more continuous conductive layer, better current transmission, higher sensitivity and fastness. The 90%PPy/FeOOH/PU composite achieved weight gain of 8.47%, with a surface resistance reduced to 3.72 kΩ/cm and lower fluctuation. Under 300% strain, the resistance change rate exceeded 4242.88%. Pre-stretching treatment reduced the PPy weight gain, increased resistance, decreased sensitivity and improved cycle stability and fastness, giving PPy fold structure. Pretreatment with 90% pre-stretching notably enhanced the yarn’s tensile properties. The breaking strength increased by 95.7% to 0.45 cN/dtex compared with no pre-stretching samples. At the strain of 150% the sensitivity was 17.70. The introduction of dopants significantly reduced the resistance change rate of the yarn, but greatly improved washing and peeling fastness and the sensing durability. The LGS doped yarn achieved the best balance between sensitivity and durability. 90%LGS/PPy/FeOOH/PU showed low hysteresis, and it can still achieve a resistance change rate of 126.95% during the stretching process, indicating that it has excellent sensing performance and cycle stability. The sensing yarn showed potential application to detect human body movements. PDMS-to-curing agent ratio of 9:1 resulted in the best flexibility and ZnS:Cu2+:PDMS ratio of 1.5:1 yielded optimal optical performance, with a luminance of 7.70 cd/m2. The final yarn exhibited excellent luminescent sensing application of human body movement (resistance change rate of 67.88%) in the dark environment. It can provide active nighttime luminescent warnings while monitoring movement.