NBR vs. Polyurethane TPU U-1023

Attribute	NBR	Polyurethane TPU U-1023
Material Type	Nitrile Butadiene Rubber	Thermoplastic Polyurethane
Hardness	60-90 Shore A	85 Shore A
Elongation at Break	300-600%	500-700%
Tensile Strength	10-25 MPa	30-50 MPa
Temperature Range	-30°C to 100°C	-40°C to 80°C

Introduction

When it comes to choosing the right material for a specific application, it is important to consider the attributes of different options. In this article, we will compare NBR (Nitrile Butadiene Rubber) and Polyurethane TPU U-1023 to help you make an informed decision based on your needs and requirements.

Chemical Composition

NBR is a synthetic rubber copolymer of acrylonitrile and butadiene, known for its excellent resistance to oil, fuel, and other chemicals. On the other hand, Polyurethane TPU U-1023 is a type of thermoplastic polyurethane that offers high abrasion resistance and flexibility. While NBR is more resistant to oil and fuel, Polyurethane TPU U-1023 is known for its superior abrasion resistance.

Physical Properties

Both NBR and Polyurethane TPU U-1023 have unique physical properties that make them suitable for different applications. NBR has a high tensile strength and good elongation properties, making it ideal for applications that require flexibility and durability. On the other hand, Polyurethane TPU U-1023 has excellent tear strength and abrasion resistance, making it a popular choice for applications that involve high wear and tear.

Temperature Resistance

When it comes to temperature resistance, NBR has a higher operating temperature range compared to Polyurethane TPU U-1023. NBR can withstand temperatures ranging from -40°C to 120°C, making it suitable for a wide range of applications. Polyurethane TPU U-1023, on the other hand, has a lower operating temperature range of -30°C to 70°C, which may limit its use in certain high-temperature applications.

Chemical Resistance

One of the key differences between NBR and Polyurethane TPU U-1023 is their chemical resistance properties. NBR is highly resistant to oil, fuel, and other chemicals, making it a popular choice for applications in the automotive and oil industries. Polyurethane TPU U-1023, on the other hand, is more resistant to abrasion and wear, but may not offer the same level of chemical resistance as NBR.

Applications

Both NBR and Polyurethane TPU U-1023 have a wide range of applications across various industries. NBR is commonly used in automotive seals, gaskets, and hoses due to its excellent oil and fuel resistance. Polyurethane TPU U-1023, on the other hand, is often used in industrial applications such as conveyor belts, rollers, and seals where abrasion resistance is critical.

Cost

Cost is another factor to consider when choosing between NBR and Polyurethane TPU U-1023. NBR is generally more cost-effective compared to Polyurethane TPU U-1023, making it a popular choice for applications where budget is a concern. However, the higher abrasion resistance and durability of Polyurethane TPU U-1023 may justify the higher cost in certain applications where longevity is important.

Conclusion

In conclusion, both NBR and Polyurethane TPU U-1023 have unique attributes that make them suitable for different applications. NBR offers excellent oil and fuel resistance, high tensile strength, and good elongation properties, while Polyurethane TPU U-1023 provides superior abrasion resistance, tear strength, and flexibility. When choosing between the two materials, it is important to consider factors such as temperature resistance, chemical resistance, applications, and cost to determine the best option for your specific needs.