화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2020년 가을 (10/05 ~ 10/08, 부산컨벤션센터(BEXCO))
권호 45권 1호
발표분야 고분자가공/복합재료
제목 Wet-spinning of Boron Nitride Nanotube Liquid Crystal for Multifunctional Polymeric Composite Fibers
초록 Wet-spinning of CNT liquid crystal (LC) has been reported as a promising way to produce a high-performance fiber with multifunction owing to highly ordered nanotubes inside the fiber which greatly improves its material properties. Up to now, the LC wet-spinning method with boron nitride nanotubes (BNNTs), an emerging nanomaterial with excellent specific strength and oxidation resistance, has not been reported due to difficulty in preparation of highly stable dispersions of BNNT to prepare lyotropic BNNT LCs at high concentration. Here, we introduce a facile method to prepare lyotropic BNNT LCs with polymeric dispersing agent. The BNNT LCs were processed into a fiber possessing internal microstructure of unidirectionally aligned BNNTs by wet-spinning. The aligned BNNTs inside the fiber were characterized by polarized optical microscopy (POM) and Raman spectroscopy. In addition, mechanical property of the fiber was studied to the structure-property relationship of BNNT fibers.
저자 임홍진, 김영경, 김홍식, 장세규
소속 한국과학기술(연)
키워드 wet-spinning; polymeric nanocomposite; BNNT; liquid crystal; dispersion
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