Polyacrylonitrile fibers: Full analysis from science to application!

Polyacrylonitrile fibers commonly known as acrylic, is a synthetic fiber that is very similar in performance and appearance to wool. The discovery and application of this fiber is full of scientific and industrial wonders.

From the point of view of characteristics, polypropylene filament is much thinner than ordinary polypropylene filament. This leads to a series of interesting changes. First of all, its specific surface area increases, in popular terms, is the same quality of polypropylene filament, its surface area is much larger than ordinary polypropylene filament. This makes it excellent in some applications that require adsorption or contact. Moreover, the fiber of fine denier silk is softer and comfortable to touch, which is ideal for some products with high softness requirements, such as close-fitting clothing or high-end home textiles.

Production technology

The production process of polyacrylonitrile fibers includes polymerization, spinning, preheating, steam drawing, washing, drying, heat setting, crimping, cutting and packing.

Performance and action

The performance of polyacrylonitrile fiber is very close to wool, with good elasticity, and the rebound rate can remain 65% when stretching 20%. Its fluffiness and softness make it 15% warmer than wool, so it is called "synthetic wool". This fiber is also very strong, 1 to 2.5 times stronger than wool. In addition, it has excellent sun fastness, and its strength only decreases by 20% after one year of outdoor exposure, which is very suitable for curtains, curtains, tarpaulin and other outdoor products.

Application field

Polyacrylonitrile fibers is widely used in many fields such as clothing, decoration and industry because of its softness, bulk and easy dyeing. It can be blended with wool into wool, or woven into blankets, carpets, etc. In addition, it can also be blended with cotton, man-made fibers, other synthetic fibers, woven into a variety of clothing and indoor goods.

Production method

Polyacrylonitrile fibers have higher purity requirements for raw acrylonitrile, and the total content of various impurities should be less than 0.005%. The second monomer of the polymerization is mainly methyl acrylate, and methyl methacrylate can also be used to improve the spinnability and the feel, softness and elasticity of the fiber. The third monomer is mainly to improve the dyeing property of the fiber, which is generally itaconic acid containing weak acidic dyeing groups.

The development of polyacrylonitrile fibers shows not only the power of science, but also the progress of industry. This fiber plays an important role in a wide range of applications, from everyday wear to industrial use.

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