The performance of polyacrylonitrile fiber is very similar to that of wool. When the elongation is 20%, the rebound rate can still be maintained at 65%, fluffy, crimped and soft, and the heat preservation property is 15% higher than that of wool, which is known as synthetic wool. 

The strength is 22.1 to 48.5 CN Dtex, which is 2.5 times higher than that of wool. 

Excellent sun resistance, open-air exposure for one year, the intensity is only reduced by 20%, can be made into curtains, curtains, tarpaulins, cannon clothing and so on. 

It can resist acid, oxidant and general organic solvent, but it has poor alkali resistance. 

The softening temperature of the fiber is 190 ~ 230 ℃. 

Acrylic fiber is called artificial wool. 

It has the advantages of soft, puffy, easy to dye, bright color, light resistance, antibacterial, not afraid of moth and so on. According to the requirements of different uses, it can be pure spun or blended with natural fiber, and its textiles are widely used in clothing, decoration, industry and other fields. 

Polyacrylonitrile fiber can be blended with wool into wool, or woven into blankets, carpets, etc., can also be blended with cotton, man-made fibers, other synthetic fibers, woven into a variety of clothing materials and indoor products. 

The expanded top processed by polyacrylonitrile fiber can be spun pure or blended with viscose fiber and wool to obtain various specifications of medium coarse wool and fine wool "cashmere".