辐射降温锦纶长丝及其针织物性能研究  

Properties of radiative-cooling nylon filaments and their knitted fabrics

作　　者：黄晶 柏志豪 吴珂 杜立新 张瑞云[1] 李红 黄莉茜[1] HUANG Jing;BAI Zhihao;WU Ke;DU Lixin;ZHANG Ruiyun;LI Hong;HUANG Liqian(Key Laboratory of Textile Science&Technology,Ministry of Education,College of Textiles,Donghua University,Shanghai 201620,China;Hangzhou Langrun Textile Co.,Ltd.,Hangzhou 311200,China;Lutai Textile Co.,Ltd.,Zibo 255100,China;China Knitting Industrial Association,Beijing 100020,China)

机构地区：[1]东华大学纺织学院纺织面料技术教育部重点实验室,上海201620 [2]杭州朗润纺织有限公司,浙江杭州311200 [3]鲁泰纺织股份有限公司,山东淄博255100 [4]中国针织工业协会,北京100020

出　　处：《山东科学》2024年第4期65-74,共10页Shandong Science

基　　金：上海市科学技术委员会科技创新行动计划“一带一路”国际合作项目(21130750100)。

摘　　要：辐射降温锦纶是以高红外发射型无机粒子SiO 2和红外透过材料聚酰胺6(PA6)为原料,采用熔融纺丝制备的具备被动辐射降温功能的长丝。对3种不同加工工艺的辐射降温锦纶长丝和普通锦纶长丝进行对比研究,测试其表面形貌、聚集态结构、化学组分、力学性能、热学性能和表面摩擦性能。进一步对上述4种长丝织成的针织物的导热性能、瞬间接触凉感和室内降温性能进行测试比较。结果表明,以添加了SiO 2的辐射降温PA6为皮层材料、聚乙烯(PE)为芯层材料纺出的辐射降温PA6/PE皮芯复合丝,和辐射降温圆形截面锦纶长丝间隔递纱织造的针织物具有最好的导热性能和凉感性能,其红外热成像温度比普通锦纶针织物高约1.8℃,表明该针织物具有更好的红外透过性能,降温效果更好。综合认为,该研究所得辐射降温锦纶针织物具有优异的辐射降温性能,可用于辐射降温纺织品的开发。Radiative-cooling nylon is a filament with a passive radiative cooling function and is made of high-infrared-emitting inorganic particle SiO 2 and infrared-transmitting material polyamide 6(PA6)using the industrial melt spinning method.In this study,the surface morphology,aggregated structure,chemical composition,mechanical properties,thermal properties,and surface friction properties of three types of radiative-cooling nylon filaments and an ordinary nylon filament were compared.The thermal conductivity,cool feeling at instant contact,and indoor cooling performance of the four knitted fabrics were further tested.The results show that the knitted fabric interwoven with the radiative-cooling PA6/PE sheath-core composite yarn,which is spun with SiO 2-added radiative-cooling PA6 as the skin material and polyethylene(PE)as the core material,and radiative-cooling nylon filament with circular cross-section demonstrate the best thermal conductivity and cooling performance.Its infrared thermal imaging temperature was approximately 1.8℃higher than that of the ordinary nylon knitted fabric,indicating that the knitted fabric exhibits a higher infrared transmittance and better cooling effect.Thus,the radiative-cooling nylon knitted fabric possesses excellent radiative cooling performance and wearability and can be used for the development of radiative-cooling textiles.

关 键 词：辐射降温 锦纶长丝 二氧化硅粉体 织物性能 

分 类 号：TS102.5[轻工技术与工程—纺织工程]