Journal
POLYMER
Volume 111, Issue -, Pages 177-182Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2017.01.043
Keywords
Polyacrylonitrile PAN; Lignin; Fiber; Carbon fiber; Rheology
Categories
Funding
- Renewable Bioproducts Institute at Georgia Institute of Technology from the Air Force Office of Scientific Research [FA 9550-14-1-0194]
Ask authors/readers for more resources
Dynamic shear rheology study is conducted on the polyacrylonitirile (PAN) solution and composite solutions of PAN with up to 37.5 wt% annual plant lignin (APL) to address current barriers of PAN/lignin blend development as carbon fiber precursor. PAN/APL blends exhibit lower yield stresses, lower relaxation times, and lower viscosities than to PAN solution according to the dynamic frequency sweep measurements from -7 degrees C to 56 degrees C. Yet an increase of solution activation energy of flow is observed with the increasing lignin content in solution. This is attributed to the potential interactions of PAN and lignin. Solution loss tangents obtained from dynamic frequency sweeps between -7 degrees C and 56 degrees C at an oscillatory frequency of 100 rad/s is used to envision the effect of lignin on solution structure during fiber processing. (c)2017 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available