Acrylic Fibres are Oil Resistant Synthetic Fibres
Description:
Acrylic fibres are synthetic fibres derived from polyacrylonitrile. By the process of free radical polymerization, the polymer for the acrylic fibres is formed. During polymerization process of chemical reaction, three-dimensional networks of polymer chains are formed. These polymer chains are then treated with polymer solvents such as N, N-dimethylformamide or aqueous sodium thiocyanate resulting in the formation of Acrylic Fibres. The newly formed fibres are then made to pass through multi-hol
Content:
Acrylic fibres are synthetic fibres derived from polyacrylonitrile. By the process of free radical polymerization, the polymer for the acrylic fibres is formed. During polymerization process of chemical reaction, three-dimensional networks of polymer chains are formed. These polymer chains are then treated with polymer solvents such as N, N-dimethylformamide or aqueous sodium thiocyanate resulting in the formation of Acrylic Fibres. The newly formed fibres are then made to pass through multi-hole spinnerette which squeezes out these thin lined threads like fibres which are again treated with the same solvents used before.
The raw fibres formed are further made to pass through four steps before the final fibres emerge. Let’s see these steps in short.
1. Washing – The fibres are washed by dipping them in chemical solvents like aqueous sodium thiocyanate and allowing them to remain there for around 5 minutes before proceeding to the next step.
2. Stretching – The fibres are stretched using highly sophisticated scientific machines which pull them to their tension limit when it may simply break off.
3. Drying – The stretched fibres are then passed through blow-air machines which help in drying the product.
4. Crimping and Cutting – Finally formed fibres after drying are straightened using crimping irons which help them to form straight fibres which are then cut according to industrial standards.
Acrylic fibres are usually modified to create special properties best suited for their end-uses and are unique because of their uneven surface.
Author: Rakesh P
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