What is the difference between polypropylene industrial silk and polyamide industrial silk?

polypropylene industrial silk  and polyamide industrial silk are different in a number of aspects:

Raw materials and chemical structure:

polypropylene industrial silk : isotactic polypropylene fiber made from propylene as raw material, the chemical name is polypropylene fiber. Its molecular structure is relatively simple and regular, the chemical bonding force within a single molecule is strong, but the intermolecular force is relatively weak.

Nylon industrial silk: also known as polyamide fiber or nylon, the basic component is aliphatic polyamide linked by amide bond (-NHCO-). There are a large number of amide bonds in its molecular structure, which makes the intermolecular hydrogen bonds strong and the structural stability of the fiber is high.

Physical properties:

Density:

Polypropylene industrial silk is the lightest fiber in the common chemical fiber, the density is only about 0.91g/cm3, under the same weight, the volume of polypropylene industrial silk is larger, can obtain a higher coverage area, in some applications with strict requirements for weight has advantages.

The density of nylon industrial silk is relatively large, about 1.14g/cm3, which is heavier than polypropylene industrial silk, and the products made have a certain sense of weight.

Intensity:

The strength of polypropylene industrial silk  is high, especially its tensile strength is second only to nylon, has good tensile properties, can withstand greater tension and load, suitable for industrial applications requiring high strength.

The strength of nylon industrial silk is also very excellent, is a relatively strong wear-resistant synthetic fiber, its wear resistance is higher than all other fibers, 10 times higher than cotton wear resistance, 20 times higher than wool.

Elasticity:

Polypropylene industrial silk has good elasticity, high initial modulus, can be quickly restored to the original state after external force, is not easy to deform, and the dimensional stability of the product is good.

The elasticity of nylon industrial silk is also better, but compared with polypropylene industrial silk, its elastic recovery ability may be slightly weaker.

Hygroscopicity:

Polypropylene industrial silk has poor moisture absorption, almost no moisture absorption, but has good core absorption capacity, which can transfer water vapor through the capillary tubes in the fabric, so that the water is quickly distributed and the product is dry.

The hygroscopic property of polyamide industrial silk is better than that of polypropylene industrial silk, but it is still a fiber with poor hygroscopic property, which may affect its performance in a humid environment.

Suining County Tongjia Chemical Fiber Factory was founded in 2013, the main products 300D-3000D color high strength polypropylene yarn, polypropylene double twist, polypropylene industrial silk, polypropylene high-strength silk, etc., the products have high strength, light weight, heat reduction uniform, flame retardant, anti-aging, low thermal conductivity, are widely used in a variety of industrial cloth, cable, container bag, anti-cracking engineering fiber and other products.