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- W2385087277 abstract "Polyacrylonitrile( PAN) fibers were pre-oxidized and the influence of the pre-oxidized structure on thermal stability and mechanical properties was studied by means of13 C Solid-NMR,TG-IR,and mechanical property tests. The results show that the thermal stability of the pre-oxidized fibers first increases with increasing treatment temperatures and then decreases after reaching a peak value,which is the result of the interaction between cyclized structure and oxidized structure. Cyclized structure improves the thermal stability,while oxidized structure damages the thermal stability when it reaches a specific content. During post-treatment of high temperature,oxygen combines with carbon in the pre-oxidized fibers to form carbon oxides,removing carbon in the form of CO and CO2 and leaving structural defects in the fiber. The PAN fiber treated at 245 ℃ shows the minimum amount of carbon removal,and forms feasible preoxidized structure,with highest carbon yield and tensile strength of carbon fiber." @default.
- W2385087277 created "2016-06-24" @default.
- W2385087277 creator A5021797884 @default.
- W2385087277 date "2015-01-01" @default.
- W2385087277 modified "2023-09-28" @default.
- W2385087277 title "Effect of oxidized structure on thermal stability of pre-oxidized polyacrylonitrile fiber" @default.
- W2385087277 hasPublicationYear "2015" @default.
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