芳纶纳米纤维/细菌纤维素复合隔热气凝胶的制备及性能  

Preparation and properties of aramid nanofiber/bacterial cellulose composite insulation aerogel

作　　者：齐琨[1] 赵龙 马志阳 任方林 欧康康 段书霞 QI Kun;ZHAO Long;MA Zhiyang;REN Fanglin;OU Kangkang;DUAN Shuxia(Research Institute of Textile and Clothing Industries,Zhongyuan University of Technology,Zhengzhou 451191,China;School of Textiles and Fashion,Shanghai University of Engineering Science,Shanghai 201620,China;Provincial Key Laboratory of Medical Protective Products,YADU Industrial Co.,Ltd.,Xinxiang 453400,China)

机构地区：[1]中原工学院纺织服装产业研究院,河南郑州451191 [2]上海工程技术大学纺织服装学院,上海201620 [3]河南亚都实业有限公司,河南省医用防护用品重点实验室,河南新乡453400

出　　处：《印染》2025年第2期1-5,共5页China Dyeing and Finishing

基　　金：国家自然科学基金青年基金项目(52303119);河南省重点研发与推广专项(242102220096);河南省医用防护用品重点实验室开放课题基金项目(YDFH-2023-KF-04);河南省高等学校青年骨干教师培养计划(2024GGJS093);河南省高等学校重点科研项目(25A540004);中原工学院青年骨干教师资助项目(2023XQG02)。

摘　　要：为制备用于保温隔热和红外隐身的相变气凝胶复合材料,利用快速冷冻和冷冻干燥技术制备出具有多孔结构的芳纶纳米纤维/细菌纤维素(ABC)复合隔热气凝胶,进一步结合浸渍工艺制备了芳纶纳米纤维/细菌纤维素/聚乙二醇(ABP)复合隔热气凝胶。表征了ABC复合隔热气凝胶的形貌,并测试了其力学性能和隔热性能,研究了ABP复合隔热气凝胶的隔热、红外隐身和应用性能。结果表明:ABP复合隔热气凝胶具有良好的隔热性能,聚乙二醇在ABP复合隔热气凝胶中的负载量达到93.8%(质量分数),熔融焓为182.2 J/g,经过20次固液循环后质量保留率为92.3%,具有良好的防泄漏性和循环稳定性,可以应用于高温和低温目标的热防护和红外隐身等领域。To prepare a phase change material/aerogel composite for thermal insulation and infrared stealth,a porous aramid nanofiber/bacterial cellulose(ABC)composite thermal insulation aerogel is fabricated using rapid freezing and freeze-drying techniques.The ABP composite thermal insulation aerogel is further prepared by impregnation process.The morphology,mechanical properties,and thermal insulation performance of the ABC composite thermal insulation aerogel are characterized and tested,and the thermal insulation and infrared stealth performance,as well as the application properties of the ABP composite thermal insulation aerogel are investigated.The results show that the ABP composite thermal insulation aerogel exhibits excellent thermal insulation performance,with PEG loading of 93.8%(by mass),enthalphy of fusion of 182.2 J/g,and mass retention of 92.3%after 20 solid-liquid cycles,indicating good anti-leakage properties and cyclic stability.This material holds significant potential for applications in thermal insulation and infrared stealth for high-temperature and low-temperature targets.

关 键 词：复合隔热气凝胶 冷冻干燥 相变材料 隔热 红外隐身 

分 类 号：TS195.5[轻工技术与工程—纺织化学与染整工程] TB332[轻工技术与工程—纺织科学与工程]