摘要:
The present invention is a method for producing carbon fiber, characterized by using a carbon-fiber precursor produced from a polymer having a narrow molecular weight distribution and by applying only a small amount of a smoothing agent, composed of a specific component, to the carbon fiber surface immediately before winding of carbon fiber. According to the present invention, it is possible to stably produce carbon fiber, which has excellent dispersibility and do not deteriorate in quality and quality even when a sizing agent is not attached to the carbon fiber surface. In addition, the produced carbon fiber is suitable for use in a composite material which is produced by high-temperature processing using a thermoplastic resin.
摘要:
A thread treatment device for use with an associated continuous in-line thread consuming device (15) is provided. The thread treatment device (100) comprises a treatment unit (110) configured to apply a treatment material to the thread (12), a fixation unit (120) configured to apply an amount of energy to the thread (12) to at least partly fix the applied treatment material to the thread (12), and a first guiding unit (140) arranged upstream the fixation unit (120) and configured to align the thread (12) in the fixation unit (120).