Advantages of Polyurethane Elastomers
1. The performance can be adjusted in a large range. A number of physical and mechanical performance indicators can be changed within a certain range through the selection of raw materials and the adjustment of the formula, so as to meet the different requirements of users for product performance. For example, hardness is often an important indicator for users on products. Polyurethane elastomers can be made into soft printing rubber rollers with a Shore A hardness of about 20, and hard rolling rubber rollers with a Shore D hardness of more than 70. This is difficult for general elastomer materials. Polyurethane elastomer is a polar polymer material composed of many flexible segments and rigid segments. As the proportion of rigid segments increases and the density of polar groups increases, the original strength and hardness of the elastomer will increase accordingly.
2. Superior wear resistance. Especially in the working conditions with the presence of water, oil and other moist media, its wear resistance is often several to dozens of times that of ordinary rubber materials. Rice huller rubber rollers for rice milling, vibrating sieve plates for coal preparation, track tracks for sports fields, dynamic oil seals for cranes and forklifts, elevator wheels and roller skate wheels, etc. are all places where polyurethane elastomers are used. What needs to be mentioned here is that to increase the friction coefficient of medium and low hardness polyurethane elastomer components and improve the wear resistance under load, a small amount of lubricants such as aluminum disulfide, graphite or silicone oil can be added to this type of polyurethane elastomer.
3. Various processing methods and wide applicability. Polyurethane elastomers can be formed by mastication, mixing, and vulcanization processes like general-purpose rubber (referring to MPU); they can also be made into liquid rubber, pouring molding or spraying, potting, and centrifugal molding (referring to CPU); they can also be made into pellets, which are formed by injection, extrusion, calendering, blow molding, etc. (referring to TPU) just like ordinary plastics. Molded or injection-molded parts can also be machined for cutting, grinding, drilling, etc. within a certain hardness range. The diversity of processing makes the applicability of polyurethane elastomers wide, and the application fields continue to expand.
4. Oil resistance, ozone resistance, aging resistance, radiation resistance, low temperature resistance, good sound permeability, strong adhesion, excellent biocompatibility and blood compatibility. These advantages are why polyurethane elastomers are used in military, aerospace, acoustics, biology and other fields.
We support all kinds of customization, if you need it, please contact us.
Phone/whatsapp:+86 18234744811
Email:sales@highindustryco.com
Rubber Mold Plastic Mold Cold Isostatic Pressing Bags CIP bags
