石蜡@碳酸钙相变微胶囊在海藻纤维中的应用研究  

A study on the application of paraffin@calcium carbonate phase change microcapsules in seaweed fibers

作　　者：徐聪珠 孙润军 董洁[1,2] 宋晓蕾 李永贵 XU Congzhu;SUN Runjun;DONG Jie;SONG Xiaolei;LI Yonggui(College of Textile Science and Engineering,Xi’an Polytechnic University,Xi’an 710048,China;State Key Laboratory of IntelligentTextile Materials and Products(Cultivation),Xi’an Polytechnic University,Xi’an 710048,China;Key Laboratoryof New Functional Textile Fibers and Materials,Minjiang University,Fuzhou 350108,China)

机构地区：[1]西安工程大学纺织科学与工程学院,西安710048 [2]西安工程大学省部共建智能纺织材料与制品国家重点实验室(培育),西安710048 [3]闽江学院新型功能纺织纤维与材料重点实验室,福州350108

出　　处：《丝绸》2024年第9期55-63,共9页Journal of Silk

基　　金：国家自然科学基金青年项目(52107024);西安市科学技术协会青年人才托举计划项目(959202313056);陕西省教育厅科研计划项目(23JK0469);陕西省秦创原“科学家+工程师”队伍建设项目(2022KXJ-034);福建省南平市“揭榜挂帅”科技重大项目(2021A004)。

摘　　要：使用石蜡作为相变的基础材料、碳酸钙为壁材,采用自组装法制备功能良好的相变微胶囊,后与海藻酸钠共混后经湿法纺丝制备具有调温功能的海藻纤维。文章通过对微胶囊制备过程中芯壁质量比、搅拌速率、乳化剂类型及配比等工艺参数优化设计,使用扫描电子显微镜、傅里叶红外光谱仪研究了微胶囊的表面形貌和结构,热重分析仪、差示扫描量热仪、红外热成像仪等分析了微胶囊和调温纤维的热性能。结果表明,当微胶囊芯壁质量比为1︰1、反应转速为1000 r/min、乳化剂为Span80+Tween80(1︰2)时,可得到粒径均匀、形貌良好、具有优异热性能的相变微胶囊;将其与4%的海藻酸钠、2%的PVA混合得到纺丝原液,经湿法纺丝可制备出良好调温功能的海藻纤维。The textile industry plays a crucial role in economic development and enhancing the quality of life for people.With increasing environmental awareness and rising living standards,the development of eco-friendly fibers and functional textiles has become a hot topic in academia.The seaweed fiber,as a biodegradable and renewable fiber,has been widely applied in textiles and medicine due to its natural flame resistance,biodegradability,simple production,and low cost.It has gradually expanded into fields such as flame-retardant protection and healthcare.Simultaneously,temperature-controlling textiles,as a new type of functional textile,can regulate temperature by combining phase change materials with fibers,thereby enhancing comfort for the human body.However,phase change fiber products still face challenges in practical applications,such as the choice of wall materials and the lifespan of phase change materials.Both inorganic and organic materials can be used as wall materials for microcapsules.Organic wall materials have been widely used as coating materials but face challenges such as low thermal conductivity,poor mechanical properties,and short lifespan.Inorganic wall materials possess good mechanical strength and thermal conductivity but are still in the development stage.Therefore,this study aims to explore the feasibility of combining seaweed fibers with phase change materials to prepare temperature-regulating fibers,with a focus on optimizing the selection of wall materials and improving the thermal performance of microcapsules through process parameter optimization.To address the issues of poor thermal conductivity of phase change materials and the single functionality of fiber products,organic wax was used as the phase change material,and CaCO 3 with high thermal conductivity and low cost was used as the coating material to prepare phase change microcapsules via self-assembly.Then,wet spinning technology was employed to combine phase change microcapsules with seaweed fibers,resulting in temperature-regulatin

关 键 词：相变微胶囊 碳酸钙 芯壁质量比 海藻纤维 湿法纺丝 热焓值 

分 类 号：TS101.921.1[轻工技术与工程—纺织工程]