The durability of high-strength nylon (PA66) filament is very good, mainly reflected in the following aspects:
1. High strength: The molecular chain arrangement of high-strength nylon (PA66) filament is tight and the crystallinity is high, which makes the high-strength nylon filament have high strength. The strength of ordinary fibers can reach 4.9-5.6 cN/dtex, and that of strong fibers can reach 5.7-7.7 cN/dtex. This high strength makes high-strength nylon filament less prone to breakage during use, capable of withstanding significant tensile and compressive forces. It can be used to manufacture products that require significant external forces, such as tire cords, ropes, fishing nets, etc.
2. Good wear resistance: High strength nylon (PA66) filament has the highest wear resistance among various fibers. According to measurements, the wear resistance of high-strength nylon filament is 10 times that of cotton fiber and 50 times that of viscose fiber. After testing equipment verification, nylon 66 textile can withstand about 40000 frictions before holes appear due to wear. This makes products made from high-strength nylon (PA66) filament, such as socks, underwear, carpets, etc., less prone to wear and tear even after prolonged use and friction.
3. Strong corrosion resistance: High strength nylon (PA66) filament has good chemical corrosion resistance and can withstand corrosion from acids, alkalis, most inorganic salt solutions, halogenated alkanes, hydrocarbons, esters, ketones, etc. But high-strength nylon filament is easily soluble in polar solvents such as phenol and formic acid. This corrosion resistance enables high-strength nylon (PA66) filament to maintain good performance under different environmental conditions and is not easily corroded by chemical substances.
4. Good aging resistance: Although the high-strength nylon (PA66) filament is relatively poor in light resistance and easy to change color and become brittle, the aging resistance of high-strength nylon filament can be improved and the service life of high-strength nylon filament can be extended by adding appropriate anti-aging agents and other methods. Under normal usage conditions, products made from high-strength nylon (PA66) filament can maintain good performance and appearance, and are less prone to aging, cracking, and other phenomena.
5. High elasticity and rebound rate: High strength nylon (PA66) filament has good elasticity and rebound rate, and the rebound rate can reach 95% -100% when elongated by 3%. This means that high-strength nylon filament can quickly recover to its original shape and is not easily deformed after being stretched by external forces. This characteristic makes products made of high-strength nylon (PA66) filament, such as clothing, socks, etc., comfortable to wear and able to maintain good shape and size stability.
