[Learn about the characteristic]
Release date：[2022/8/8]
Is reading[77]次
PP Polypropylene, which is also known by its scientific name Polypropylene, is a rising star in the synthetic fibre. The production process of polypropylene FDY silk is simple, with "one-step spinning" and "two-step spinning". The fiber is PREPARED BY POLYMERIZATION OF PROPYLENE AS raw MATERIAL, modification OF raw material, melt SPINNING, FILTRATION of spinning MELT, COOLING BY BLOWING, WINDING. Compared WITH "TWO-STEP SPINNING", "ONE-STEP SPINNING" HAS THE CHARACTERISTICS OF LESS LAND, less manpower and low cost. The problem is that the strength of polypropylene filament produced by "one-step spinning" process is low. Therefore, it is very important to modify the raw material. At present, the manufacturing method of polypropylene strength wire is often used. It is characterized by the use of polypropylene resin with melt flow index (MFI) =5-40 and molecular weight distribution index (MWD) <7, spinning at 400-1600/ split spinning speed, and then two stages of traction and twisting in spindle type traction twisting machine to produce high strength polypropylene filament with multi-filament size of 400-1600 min.
Polypropylene FDYyarn near the flame is melting, flammable, burning slowly from the fire and black smoke, the top of the flame yellow, the bottom of the blue, emitting oil smell, after burning ash for hard round light yellow-brown particles, hand twist fragile. Because the production process of Polypropylene FDYyarn is simple, the product is cheap, the strength is high, the relative density is light and so on. At present, it is the fourth largest variety of synthetic fiber and the lightest fiber in the common chemical fiber. But poor thermal stability, not resistant to sunlight, easy to aging brittle damage, so often in polypropylene added anti-aging agent.
Polypropylene FDYyarn Use: Polypropylene FDYyarn can be used to weave a variety of knitwear such as socks, gloves, knitwear, knitted pants, dish cloth, mosquito net, quilt, warm packing, diapers, etc. Carpet, fishing net, canvas, hose, concrete reinforcement materials, etc.
Polypropylene FDYyarn near the flame is melting, flammable, burning slowly from the fire and black smoke, the top of the flame yellow, the bottom of the blue, emitting oil smell, after burning ash for hard round light yellow-brown particles, hand twist fragile. Because the production process of Polypropylene FDYyarn is simple, the product is cheap, the strength is high, the relative density is light and so on. At present, it is the fourth largest variety of synthetic fiber and the lightest fiber in the common chemical fiber. But poor thermal stability, not resistant to sunlight, easy to aging brittle damage, so often in polypropylene added anti-aging agent.
Polypropylene FDYyarn Use: Polypropylene FDYyarn can be used to weave a variety of knitwear such as socks, gloves, knitwear, knitted pants, dish cloth, mosquito net, quilt, warm packing, diapers, etc. Carpet, fishing net, canvas, hose, concrete reinforcement materials, etc.
