Introduction:
Polyurethane is a high molecular polymer material between plastic and rubber.
It not only has the high strength of plastic, but also has the high elasticity of rubber, and is a new type of wear-resistant material with excellent comprehensive performance.
It has many excellent properties, high wear resistance, ranking first among synthetic materials, even surpassing some alloy steels.
Features:
1. Good wear resistance: excellent wear resistance,
2. Wide range of hardness: the hardness of polyurethane products is about Shore A10-D80, while the hardness of ordinary rubber is generally Shore A60-100.
It is worth noting that polyurethane elastomers can have 400-800% elongation in this hardness range. The highest hardness of natural rubber is Shore A70 when the elongation rate is 550.
3. High strength and high elongation.
4. Excellent oil resistance: the oil resistance of polyurethane products is better than that of butadiene rubber; the aging resistance is better than that of natural rubber and other synthetic rubbers. In terms of hydrolysis resistance, acid resistance and alkali solution corrosion, polyether-type PUR is better than polyester-type PUR.
5. Polyurethane products have light capacity, high strength, heat insulation, sound insulation, flame retardant, cold resistance, anti-corrosion, non-absorbent.
The material classification comparison and advantages and disadvantages of oil seals, I hope that customers will carefully read the advantages and disadvantages of each raw material when purchasing oil seals, and see which kind of oil seals you actually need.
Products are widely used in:
Construction machinery, such as: loaders, bulldozers, forklifts, excavators, etc.;
Pressure machinery, such as: injection machines, molding machines, die-casting machines, forging machine tools and various pumps, valves, etc.;
Construction machinery, such as: sweepers, garbage trucks, road rollers, etc.;
There are also metallurgy, mining, oil fields, railways, ships, docks, machinery, chemicals, food, textiles and other industries, as well as rolling stock, engineering agricultural machinery, hydraulic pneumatics, oil cylinders, and other mechanical accessories.
If you want to know more about polyurethane prepolymer and products, please visit our website www.xinruituoseal.com or contact whatsapp +8615725387638.
