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Plastic‑Swelling Preparation of Functional Graphene aerogel fiber Textiles

Advanced fiber Materials 2023年第6期5卷 2016-2027页

作者： Yuxiang Qi Yuxing Xia Peng Li Ziqiu Wang Xin Ming Bo Wang Kai Shen Gangfeng Cai Kaiwen Li Yue Gao Yingjun Liu Chao Gao Zhen Xu MOE Key Laboratory of Macromolecular Synthesis and Functionalization International Research Centre for X PolymersDepartment of Polymer Science and EngineeringZhejiang University38 Zheda RoadHangzhou 310027People’s Republic of China Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering Taiyuan 030032People’s Republic of China

Graphene aerogel fibers(GAFs)combine the advantages of lightweight,high specific strength and conductivity of graphene,showing great potential in multifunctional wearable ***,the fabrication and application of GAF textiles are considerably limited by the low structural robustness of ***,we report a plastic-swelling method to fabricate GAF textiles with high performance and *** textiles were achieved by plastic-swelling,the prewoven graphene oxide fiber(GOF)tow *** near-solid plastic-swelling process allows GAFs in textiles to maintain high structural order and controllable density,and exhibit record-high tensile strength up to 103 MPa and electrical conductivity up to 1.06.104 S m−1 at the density of 0.4 g cm−*** textiles exhibit high strength of 113 MPa,multiple electrical and thermal functions,and high porosity to serve as host materials for more functional *** plastic-swelling provides a general strategy to fabricate diverse aerogel fiber textiles,paving the road for their realistic application.

关键词： aerogel fiber Plastic-swelling Smart textiles Graphene

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Encapsulated aerogel fiber Mimicking the“Core–Shell”Structure of Polar Bear Hair for Thermal Insulation

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Advanced fiber Materials 2024年第2期6卷 329-331页

作者： Guangming Tao Jiawei Wu Meifang Zhu State Key Laboratory of Material Processing and Die and Mould Technology School of Materials Science and Engineering and Wuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhan 430074China State Key Laboratory for Modification of Chemical fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620China

Designing and large-scale production of woven aerogel fibers with superior thermal insulation and multifunctionality to meet human demand for warm textiles is a major *** recent research,an encapsulated aerogel fiber that mimics the structure of polar bear hair has exhibited superior thermal insulation performance and mechanical *** innovation disrupts the current state of thermal insulation textiles,addresses the brittleness issue of aerogel fibers,and significantly enhances the processability of *** study lays the groundwork for manufacturing efficient and sustainable thermal insulation textiles,which have immense potential in areas such as military attire and spacesuits in extreme cold environments.

关键词： aerogel fiber Polar bear hair Thermal insulation textile

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Controllable Strong and Ultralight Aramid Nanofiber‑Based aerogel fibers for Thermal Insulation Applications

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Advanced fiber Materials 2022年第5期4卷 1267-1277页

作者： Mengmeng Li Xian Chen Xiuting Li Jie Dong Xin Zhao Qinghua Zhang State Key Laboratory for Modification of Chemical fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620People’s Republic of China

High-performance polymer-based aerogel fibers with ultrahigh porosity,mechanical robustness and outstanding thermal stability are demanded for applying in effective thermal insulation devices,especially in harsh ***,the poor mechanical properties and thermal stability of the commonly reported polymer-based aerogel fibers restricted their applications in many *** a special nano-build-block,aramid nanofiber-based aerogel fiber is expected to conquer this problem in virtue of the outstanding performance,intrinsically related to aramid ***,a series of aramid nanofiber-based aerogel fibers were fabricated via a facial wet-spinning method combined with freeze-drying *** effects of coagulation bath temperature and the solid contents of the spinning precursors on their morphologies and mechanical properties were systematically *** obtained aerogel fibers possessed high porosity(>92%),good mechanical prop-erties(tensile strength~8.1 MPa)and high specific surface area(~239 m^(2)/g).Meanwhile,the woven textiles exhibited a low thermal conductivity(~34 mW/(m·K))and outstanding thermal insulation properties under a wide range of *** addition,surface modification by Teflon resin could make the ANAFs hydrophobic,thus exhibiting their applicational pros-pects in a humid ***,the aramid nanofiber-based aerogel fibers and their textile throw light in a favorable direction for developing high-performance thermal insulation fibers and textiles.

关键词： ANFs High mechanical properties aerogel fiber Thermal insulation

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Polyimide aerogel fibers with Controllable Porous Microstructure for Super‑Thermal Insulation Under Extreme Environments

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Advanced fiber Materials 2022年第5期4卷 1118-1128页

作者： Tiantian Xue Chenyu Zhu Xueling Feng Qamar Wali Wei Fan Tianxi Liu State Key Laboratory for Modification of Chemical fibers and Polymer Materials College of Materials Science and EngineeringDonghua University2999 North Renmin RoadShanghai 201620People’s Republic of China Key Laboratory of Synthetic and Biological Colloids Ministry of EducationSchool of Chemical and Material EngineeringJiangnan UniversityWuxi 214122People’s Republic of China School of Applied Sciences and Humanities National University of TechnologyIslamabad 42000Pakistan

Application of aerogel fibers in thermal insulating garments have sparked a substantial ***,achieving a high porosity and low thermal conductivity for aerogel fibers remain challenging,despite the innovative designs of porous ***,we fabricated lightweight and super-thermal insulating polyimide(PI)aerogel fibers via freeze-spinning by using polyvinyl alcohol(PVA)as a pore *** high affinity of PVA with water enables it to accelerate the ice crystal nucleation,adjust pore formation,and construct a controllable porous structure of PI aerogel *** as-fabricated PI aerogel fiber has a considerable reduced pore size,high porosity(95.6%),improved flexibility and mechanical strength,and can be woven into *** PI aerogel fabric exhibits low thermal conductivity and excellent thermal insulation in a wide range of temperature(from-196 to 300℃).Furthermore,the PI aerogel fabrics can be easily functionalized to expand their applications,such as in intelligent temperature regulation and photothermal *** results demonstrate that the aerogel fibers/fabric are promising materials for next-generation textile materials for personal thermal management.

关键词： Polyimide aerogel fiber Pore regulation Thermal insulation Thermal management

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