As a polyurethane product, polyurethane valve insert seal is now very common in many industries. Especially in some mechanized factories, it is an indispensable mechanical part. Today, Sabrina from Shandong Xinruituo will tell you about the physical properties of valve rubber.
PU rubber seal plays a sealing role in the fracturing work of the oil production plant. In order to increase its service life, it is necessary to comprehensively consider the various physical and physical properties of elastomer raw materials, and find an elastomer raw material with high toughness, super wear resistance, low shrinkage, deformation and high and low temperature test performance as the main raw materials. Among the three polymer diols selected in this work, the molecular formula of homomethacrylate is neat, the physical properties are good, and the low temperature resistance is outstanding, but the wear resistance is average. The basic physical properties of polyester diol elastomer are outstanding, and its heat resistance is slightly stronger than that of methacrylate polyurethane elastomer material, but its low temperature resistance is weaker. The basic physical properties of polyurethane elastomers are not inferior to those of polyester diols, the shrinkage deformation is low, and the heat resistance and wear resistance are improved.
If you want to know more about polyurethane prepolymer and products, please visit our website www.xinruituoseal.com or contact whatsapp +8615725387638.
