(1) physical properties: PP non-woven fabric is non-toxic, tasteless, milky white, high crystalline polymer. It is one of the lightest types of all plastics at present. It is especially stable for water, and the water absorption rate of 14h in water Only 0.01%. The molecular weight is about 8~15 million, good formability. But because of the large shrinkage, the former wall products are easy to sag, and the surface gloss of the products is good and easy to be painted. (2) mechanical properties: PP non-woven fabric with high crystallinity, neat structure, and therefore has excellent mechanical properties, its strength and hardness and elasticity are higher than the density of PE (HDPE). Outstanding features are anti bending fatigue (7 * 10^7), open and close folding, bending without damage, dry friction coefficient similar to nylon, but less nylon in oil lubrication. (3) thermal properties: PP non-woven fabric has good heat resistance, melting point at 164~170 degrees Celsius, products can be more than 100 degrees of temperature sterilization. It is not deformed at 150 degrees without the action of external force. The embrittlement temperature is -35 degrees, and embrittlement occurs at less than -35. The heat resistance is less than that of PE. (4) chemical stability: PP non-woven fabric has good chemical stability, in addition to being acid erosion, the other chemicals are relatively stable, but low molecular weight aliphatic hydrocarbons, aromatic hydrocarbons and so on The PP nonwoven can soften and swell, and the chemical stability increases with the increase of crystallinity. Therefore, PP non woven fabric is suitable for making Russian and Chinese chemical pipes and fittings, and the corrosion prevention effect is good. (5) electrical properties: non-woven fabrics of high frequency insulation performance, because it almost no water absorption, insulation performance is not affected by humidity, there is a high dielectric coefficient, and with the rise in temperature, The utility model can be used for producing electric insulation products with high heating temperature and high breakdown voltage, and is suitable for Electrical Appliance Fittings and the like. Good resistance to voltage, arc resistance, but high static, easy to aging contact with copper. (6) weather resistance: non-woven fabric is very sensitive to ultraviolet light, and can be improved by adding Zinc Oxide, propionic acid, cinnamon, cinnamon and black pigment in February. High quality non-woven factory Ruian boorkaee non-woven Co. Ltd. to provide you with the best service! Hotline: 0577-65378368