【作者】 张颖；

【导师】 周立亚；

【作者基本信息】 东华大学 ， 纺织工程， 2018， 硕士

【摘要】 可穿戴电加热纺织品是一种具有广泛用途的功能性纺织品。该类产品将外源发热材料与纺织品相结合,运用主动产热的方式向人体进行热传递,具有寒冷环境下御寒保暖、医疗保健目的下进行局部热疗的作用,且其加热原理简单、制作方便、发热效率高而受到广泛关注。电加热元件一般为可发热金属丝、碳纤维发热材料以及石墨烯材料,碳纤维丝以其发热效率高、质软且成本较低而成为电加热纺织品中的重点研发对象。本文将以碳纤维丝为电加热材料制成的多层复合织物的热湿舒适性能为主要研究对象。首先进行碳纤维丝的电热性能研究,生成相关发热元件的发热温度模型;其次研究和确定多层复合织物的亲肤层、加热层以及保温防护层的各层配搭关系,选取不同材料的纱线进行亲肤层纬平针织造,加热层运用四平与空气层间隔织造,方便碳纤维丝的穿入且不影响加热性能;进而运用多组实验与测试进行各层多种织物的物理基本参数测定以及单层热湿舒适性能的研究;利用恒温恒湿水槽以及模拟皮肤系统进行加热时多层复合织物的温湿度数据采集,根据数据进行统计学多变量分析;最后以护颈带为例进行加热型多层复合织物的设计、织造,并结合微型温控器实现护颈带加热温度控制。(1)碳纤维丝的基本物理性能探究和评价。研究了碳纤维发热丝的电阻稳定性以及发热温度与电功率之间的关系,确定了碳纤维丝加热时具有良好的电阻稳定性。(2)研究多层复合纺织品各层之间的关系以及如何进行选材织造,测定织物的纵密、横密、克质量以及厚度等,并进行热湿舒适性相关指标的测定,采用主成分分析法进行单层织物热湿舒适性主要影响因素探究,得出织物的克质量以及横、纵密是影响单层针织物的热湿舒适性的主要指标。将多层织物复合后的温湿度差与各层织物基本物理性能等进行多变量分析,得出多层复合织物单层热湿舒适性受到各层间织物相互影响。(3)进行碳纤维发热丝产品的设计、打板与织造。按照脖颈形状进行护颈带织物设计,并运用针织电脑横机进行织造,搭载微型温控器的试验产品在模拟皮肤上运行良好,并在实际穿着中进行验证,得到与实验相同的加热曲线,认为本文制备的碳纤维加热产品,发热性能良好、可实现温度控制,热湿舒适性能良好。更多还原

【Abstract】 The functional wearable heating textiles are widely used in many ways.This kind of product combines exogenous heat-generating materials with textiles.Positive warmth style used the outside heating elements to produce the spontaneous heat achieving energy.It has the function of local hyperthermia under cold condition and can be used to health care.Due to its simple heating principle,easy fabrication,and high heat efficiency,people use this in many ways.The electric heating elements are generally classified into heat-generating metal wires,carbon fiber heat-generating materials,and graphene materials.The carbon fiber heat-generating material has become a key research object in electric heating textiles due to their high heat generation efficiency,soft quality,and low cost.In this paper,we use the wearable textile carbon fiber heating wire for the study.First,we analyzed the work and heat stability of the heating wire in textile,thus,we produce the heating module.Then we learn the dependency of the inside layer,the heating layer,and the outside layer between each layer in the multilayer composite fabric is studied and the yarns of different materials are selected to perform skin-like weft knitting techniques.The heating layer is knitted with a spacer and an air layer to facilitate the penetration of carbon fiber filaments without affecting the heating performance.Multiple sets of experiments and physical tests are applied to study the single layer thermal and moisture comfort properties and to determine the physical parameters of various fabrics in each layer.Temperature and humidity data of multi-layer composite fabrics are collected using a constant-temperature,constant-humidity water tank and a simulated skin system,and statistical multivariate analysis is performed based on the data.Taking the neckband as an example,the design and weaving of the heated multi-layer composite fabric are performed,and micro-thermostat are used to achieve the control of the heating temperature of the neckband.(1)Exploration and evaluation of basic physical properties of carbon fiber yarns.The dependency between the electrical resistance stability of the carbon fiber heating wire and the heating temperature & electrical power are studied,and it is determined that the carbon fiber wire has good resistance stability when heated.(2)The dependency between layers of multi-layer composite textiles as long as the material selection are studied.The vertical density,cross-density,g quality and thickness of the fabrics are measured.The indexes related to heat and moisture comfort are measured and analyzed by principal component analysis.The main influencing factors of the thermal and moisture comfort of single-layer fabrics are investigated.It is concluded that the quality of fabric and the horizontal and vertical density were the main indicators affecting the thermal and moisture comfort of single-layer knitted fabrics.The multi-variable analysis of the temperature and humidity difference after multilayer fabric composites and the basic physical properties of each layer of fabrics showed that the thermal and moisture comfort of a single layer of a multilayer composite fabric is affected by the interfacial fabrics.(3)Carbon fiber heating wire products will be designed,boarded and woven.The neckband fabric is designed according to the shape of the neck and weaved with a computer-based flat knitting machine.The test product equipped with the micro-temperature controller works well on the simulated skin and is verified during actual wear.The same heating curve as the experiment data is obtained.It will be believed if the carbon fiber heating products prepared in this paper have good heat generation performance,can achieve temperature control,and have good thermal and moisture comfort properties.更多还原