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- 저자 : Elagib Tienah H. H. (검색결과 1 건)
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Elagib Tienah H. H.,Hassan Elwathig A. M.,Liu Baihua,Han Keqing,Yu Muhuo 한국탄소학회 2020 Carbon Letters Vol.30 No.3
The composite PAN fbers which incorporated with CNTs and Titania were prepared by mean of wet spinning. These fbers were then pre-oxidized with microwave heating in an air atmosphere. A combination of characterizations was carried out to study the impact of nanoparticles fllers on the properties of as-spun fbers and their performance during the microwave pre-oxidation. The addition of an equal amount of fllers made obvious changes in the chemical and crystalline structure, consequently improves the strength, and this could lower the capability to creep over a wide range of temperatures in the subsequent processes. FTIR and NMR analyses results of the pre-oxidized fbers exhibited clear changes in the PAN structure, where the dehydrogenation reaction and the degree of cyclization were investigated. Additional confrmation of the occur�rence of cyclization reaction was achieved by XRD and thermal analysis. According to the TGA results, the pre-oxidized CNT1 /Ti-PAN fbers exhibit greater thermal stability suggesting high carbon content and good quality could result in the dependent carbon fbers.
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