Product Introduction

Hydrogenated nitrile rubber has high strength due to its unique molecular structure and manufacturing process. During the hydrogenation process, a large number of unsaturated double bonds in the nitrile rubber molecular chain are saturated with hydrogen, greatly improving the regularity and stability of the molecular chain. This not only enhances the intermolecular forces but also reduces stress concentration points. At the same time, the precisely controlled crosslinking reaction forms a tight and uniform three-dimensional network structure, endowing the material with excellent tensile and tear resistance. This micro level optimization is the fundamental guarantee for the high-strength performance of HNBR.

Application scenarios

In the application of synchronous belts in automotive engines, the high-strength advantages of HNBR are fully demonstrated. When the engine is running, the synchronous belt needs to withstand huge tension and periodic stress changes, and even a slight deviation may cause tooth skipping and fracture, affecting the normal operation of the engine. The synchronous belt made of HNBR, with its high-strength characteristics, can stably transmit power, adapt to complex working conditions, and have a significantly longer service life than ordinary rubber synchronous belts, reducing replacement frequency, lowering equipment maintenance costs, and ensuring stable operation of automobile engines. In the field of oil extraction, deep well operations face high temperature, high pressure, and highly corrosive environments, and rubber seals and pipelines need to withstand tremendous pressure. HNBR, with its high strength, can maintain structural integrity, prevent leaks, and ensure safe and efficient mining operations under such harsh conditions, becoming a key material for ensuring the stable operation of the petroleum industry.

Comparative Case Explanation

Compared with traditional nitrile rubber, the tensile strength of HNBR can be increased by 50% -100% under the same specifications and stress conditions. For example, when making O-rings of the same size, traditional nitrile rubber O-rings show significant deformation or even rupture when subjected to a pressure of 5MPa, while HNBR material O-rings can easily withstand pressures above 18MPa, still maintaining good sealing performance and structural strength, highlighting their performance advantages. Looking at the comparison with EPDM rubber, when making conveyor belts, with the same thickness, HNBR conveyor belts can carry about 30% more weight of goods than EPDM rubber conveyor belts. Moreover, under frequent bending and friction, HNBR conveyor belts have stronger wear resistance and tear resistance, significantly extending their service life and bringing higher economic benefits to industrial production.