New insights into the radial structural differences of polyacrylonitrile fibres during thermal stabilization by the synchronous processing adjustment of time and temperature
Liang Chen, Jing Chen, Zhigang Shen, Jie Liu, Xiaoxu Wang
Abstract
, the stabilization degrees, the present crystallinities, and the orientation degrees) of PAN chains in the skin regions that mainly determine the fibres' overall performances were dramatically different from those in the core regions. Meanwhile, based on the TTI model, these skin-structure parameters demonstrated a strong correlation with the tensile properties of the resultant carbon fibres. However, while the stabilized PAN fibres had equal densities, their structural parameters, as well as the properties of the resultant carbon fibres, were obviously different.
Topics & Concepts
PolyacrylonitrileMaterials scienceCore (optical fiber)ThermalComposite materialCarbon fibersChemical physicsChemical engineeringChemistryPolymerThermodynamicsPhysicsEngineeringComposite numberFiber-reinforced polymer compositesGraphene research and applicationsNatural Fiber Reinforced Composites