The features of the acrylic-base fibers and their modifications were analyzed.

Study on thermodynamics of dyestuff adsorbed onto the acrylic surface using stoichiometric displacement theory;

Anti-pilling research on physically modified acrylic fiber;

Analysis of causes influencing acrylic fiber solvent quality and countermeasures;

Industrial production technology of dope dyed PAN fiber;

Application of biological enzyme in PAN fiber and PET fiber modification;

Development of antistatic methods for PAN fiber;

Influence of surface treatment of PAN on its thermal and pre-oxidation properties;

The Problems of Imported Polymerization Kettle of Dry Spun PAN and Countermeasures;

The carboxy ion exchange fibers with higher exchange capacities up to 6 48 mmol/g and good physico\|mechanical properties were prepared by reacting polyacrylonitrile fibers with aq\|hydrazine and hydrolysis in basic solution respectively.

A novel ASY-2 finish for polyacrylonitrile fiber,which is comparable to the imported XF-2B finish in hand feeling, heat resistance and spinning, has been obtained by adding the high molecular weight components and amino-modified polysiloxane to the finish formulation.

The NaSCN one-step polyacrylonitrile fiber turnable wet spinning line with the productivity of 4kt/a ismodified and expanded,its productivity is doubled.