Carbon fiber with polyacrylonitrile (PAN) precursor production

Carbon fiber precursor in the production of influent concentration control

Strand of suitable high temperature decomposition, carbon fiber can be obtained.

Polyacrylonitrile (PAN) with its more excellent strength and stability, and higher carbon yield, became the most commonly used carbon fiber strand.About 90% of the carbon fiber made from polyacrylonitrile (PAN), the remaining 10% is made of rayon or asphalt.

PAN based carbon fiber from polyacrylonitrile (PAN) copolymer is spinning.Therefore, the need to prepare spinning solution or concentrate containing solvents.Commonly used solvents have dimethyl sulfoxide (DMSO), dimethyl formamide (DMF), acetic acid dimethyl (10-channel DMAc) and sodium thiocyanate.Control influent concentration made high mechanical strength of the filament, to ensure that it is very important.

The spinning process is also very important, because the internal structure of atomic fiber is formed in the process.In addition, the final quality of the fiber depends on the different process parameters, such as the composition of concentrate, coagulation bath temperature and concentration.

After fiber formation, through drawing, stability, carbonization and graphitization of the fibers for further processing.

Visa K - PATENTS^®Online refractometer can in-situ monitor process at different stages of solvent concentration.

Read the application instructions, detailed understanding for the production of polyacrylonitrile (PAN) precursor of carbon fiber production.

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