全天候被动辐射保暖织物的制备及性能表征  

Preparation and performance characterization of all-weather passive radiation warming fabrics

作　　者：李本辉 敖书玉 孙丰鑫 苏旭中 LI Benhui;AO Shuyu;SUN Fengxin;SU Xuzhong(College of Textile Science and Engineering,Jiangnan University,Wuxi 214122,China;Laboratory for Soft Fibrous Materials,Jiangnan University,Wuxi 214122,China)

机构地区：[1]江南大学纺织科学与工程学院,江苏无锡214122 [2]江南大学纺织软材料研究室,江苏无锡214122

出　　处：《丝绸》2024年第11期47-55,共9页Journal of Silk

基　　金：国家自然科学基金项目(12272149,11802104);中国博士后科学基金项目(2023M741400)。

摘　　要：在寒冷的环境中维持人体体温非常重要,然而传统的空间供暖造成了巨大的能源浪费。被动式辐射保暖技术可以有效地节能及满足个人热舒适,在个人热管理中具有可观的应用前景。本文以棉织物为基材,采用聚多巴胺辅助金属沉积效应,在棉织物表面原位还原银纳米颗粒,制备了高效能被动辐射保暖棉织物。实验结果表明:改性后的棉织物对太阳光谱峰值的反射率由原来的73.54%降低到15.76%,对人体红外辐射的反射率提高到43.18%以上。在室内环境下,由于改性织物对人体红外的高反射,其内层温度较于普通棉织物提高1.1℃;在太阳光照射条件下,通过改性织物对太阳光谱的高吸收性,体感温度可提高约6℃。此外,改性后的棉织物仍具有良好的透气、透湿性和力学性能,因此该被动式辐射保暖织物有利于促进可持续性热湿管理纺织品的发展。In cold environments,it is critical to maintain a stable body temperature.The most common way for people to regulate their body temperature is to utilize traditional heating devices such as air conditioners and fossil fuels.However,most of the energy for these methods is concentrated in vast spaces and inside inanimate buildings,which causes great energy waste and environmental pollution.According to statistics,the heating/cooling system of building air-conditioning accounts for about 20%of the total global indoor electricity consumption,while greenhouse gas emissions account for more than 10%of global greenhouse gas emissions.Therefore,the development of efficient,green and energy-saving heating materials is of great significance for human beings to withstand harsh climatic conditions.As a result,personal thermal management,which focuses on the micro-environment around the human body to achieve precise localized thermal regulation,is emerging as an energy-efficient and highly effective way to keep warm.In the field of personal thermal management,the research on radiation modulation is gradually coming to the fore,and its uniquely passive and efficient characteristics have attracted much attention in the current social context of pursuing energy conservation and environmental protection.This technology realizes the goal of keeping the human body warm by finely modulating the two bands of solar spectrum(0.32.5μm)and human body radiation(713μm),fully demonstrating its great application potential and value.Cotton is one of the most common textiles used in daily life and is widely used in the production of thermally wearable products due to its naturally curled and hollow microstructure and its comfort to human skin.However,the inherent low light energy conservation of natural cotton in terms of mid-infrared radiation from the human body and the solar spectrum prevents it from realizing efficient thermal insulation.This paper employs a simple technique to assist the silver ion deposition effect with the aid of poly

关 键 词：个人热管理 辐射保暖 功能纺织品 棉织物 光热转换 户外纺织品 

分 类 号：TS101.923[轻工技术与工程—纺织工程]