Spacesuit Textiles from Extreme Fabric Materials:Aromatic Amide Polymer and Boron Nitride Nanotube Composite Fiber for Neutron Shielding and Thermal Management  

作　　者：Ki-Hyun Ryu Minsung Kang Jungwon Kim Nam-Ho You Se Gyu Jang Kwang-Un Jeong Seokhoon Ahn Dae-Yoon Kim 

机构地区：[1]Functional Composite Materials Research Center,Korea Institute of Science and Technology,Wanju 55324,Republic of Korea [2]Carbon Composite Materials Research Center,Korea Institute of Science and Technology,Wanju 55324,Republic of Korea [3]Department of Polymer-Nano Science and Technology,Jeonbuk National University,Jeonju 54896,Republic of Korea [4]Department of Nano Convergence Engineering,Jeonbuk National University,Jeonju 54896,Republic of Korea

出　　处：《Advanced Fiber Materials》2024年第5期1509-1520,共12页先进纤维材料（英文）

基　　金：supported by the Korea Institute of Science and Technology(KIST)K-Lab Program,in addition to grants from the Mid-Career Researcher Program(2021R1A2C2009423);the Ministry of Trade,Industry&Energy(MOTIE RS-2023-00258591);the Korea Research Institute for Defense Technology Planning and Advancement(DAPA KRIT-CT-21-014).

摘　　要：Space exploration provides unparalleled opportunities for unraveling the mysteries of our origins and exploring planetary systems beyond Earth.Long-distance space missions require successful protection against significant radiation exposure,necessitating the development of effective radiation shielding materials.This study developed aromatic amide polymer(AAP)and boron nitride nanotube(BNNT)composite fibers using lyotropic liquid crystal(LLC)and industrially viable wet-spinning processes.The uniaxially oriented 1D composite fibers provide the necessary continuity and pliability to fabricate 2D macroscopic textiles with low density(1.80 g cm-3),mechanical modulus(18.16 GPa),and heat stability(up to 479℃),while exhibiting the improved thermal neutron absorption cross-section with thermal neutron-shielding performance(0.73 mm^(-1)).These composite textiles also show high thermal conductivity(7.88 W m^(-1)K^(-1))due to their densely packed and uniaxially oriented structures.These enhanced characteristics render the fibers a highly promising material for space applications,offering robust protection for both astronauts and electronics against the dual threats of radiation and heat.

关 键 词：Lyotropic liquid crystal Robust composite material Space radiation shielding Thermal conductive pathway 

分 类 号：TB33[一般工业技术—材料科学与工程]