PARA ARAMID FIBER

Para Aramid  also known as poly(para-phenylene terephthalamide)is a standard synthetic fiber known for its high strength and flame resistant properties. 

Key attributes of para aramid are as follows :

• High Tensile Strength : High strength, high modulus and tenacity make it suitable for the ballistic application.  On a weight-for-weight basis, it is 5 times as strong as steel, 10 times as strong as aluminum.  
• Excellent Temperature Stability : The fiber showcases phenomenal stability for prolonged periods in extreme temperatures ranging from -196 degree Celsius to 427 degree Celsius.
• High Melting Point : The fiber doesn't melt but will start to carbonize  around 427 degree Celsius.
• Chemical Resistance : It is resistant to acids and alkalis except for few strong ones.
• Lightweight : The product is lightweight making it suitable to carry out daily operations.

Para Aramid fibers are produced by polymerization which is then followed by spinning. 

• Polymerization :  The para aramid polymer is  first immersed in 100% sulphuric acid to form a liquid crystalline state. It is kept only partially liquid in order to keep the polymer chains together.  
• Spinning :  It is then forced through the spinneret at 100 degree Celsius. The fiber becomes highly oriented in the air gap before entering the spin bath containing water.  Here, the sulphuric acid solvent is removed and the formed fibers exhibit high strength.