What are the Advantages of Polyurethane Coating Wheels

What are the Advantages of Polyurethane Coating Wheels?

1. Physical and mechanical properties

The physical and mechanical performance indicators can be flexibly changed within a certain range through the selection of raw materials and the adjustment of the formula, so as to meet the unique requirements of users for product performance. For example, the hardness, the staff of the polyurethane rubber wheel understands that it is often an important indicator for the user to the product. The polyurethane elastomer can be made into a soft printing rubber roller with a Shore A hardness of about 20, and can also be made into a Shore D hardness of 70. The above hard rolled steel rubber rollers are difficult to achieve with general elastomer materials, and can meet the needs of different users. 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

Under the working conditions of wet media such as water and oil, the wear resistance of polyurethane casters is often several to dozens of times that of ordinary rubber materials. Although metal materials such as steel are very hard, they are not necessarily wear-resistant; others such as rice husker rubber rollers for rice milling, vibrating sieve plates for coal preparation, track tracks for sports fields, and dynamic oil seals for cranes and forklifts. Rings, elevator wheels and roller skate wheels, etc. are also where polyurethane elastomers come in handy. The staff of polyurethane covered wheels understand that what needs to be mentioned here is that in order to improve the friction coefficient of medium and low hardness polyurethane elastomer components and improve the wear resistance under load, a small amount can be added to this type of polyurethane elastomer Lubricants such as aluminum disulfide, graphite or silicone oil.

3. Various processing methods and wide applicability

Polyurethane elastomers can be molded, mixed, and vulcanized like general-purpose rubber (referred to as MPU); they can also be made into liquid rubber, poured and molded or sprayed, potted, and centrifugally formed (referred to as CPU); Pellets, like ordinary plastics, are formed by injection, extrusion, calendering, blow molding and other processes (referring to CPU). Molded or injection-molded parts can also be machined for cutting, grinding, drilling, etc. within a certain hardness range. The diversity of polyurethane rubber wheel processing makes the applicability of polyurethane elastomers very wide, and the application fields continue to expand.

4. Superior physical properties

Oil resistance, ozone resistance, aging resistance, radiation resistance, low temperature resistance, good sound permeability, strong adhesion, biocompatibility and blood compatibility. These advantages are why polyurethane elastomers are widely used in military, aerospace, acoustics, biology and other fields.