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1、稀土CeO2对橡胶材料耐磨性的影响In recent years, cerium dioxide (CeO2) has emerged as a promising additive for improving the performance of rubber materials. In particular, CeO2 has been found to enhance the wear resistance of rubber materials, which is a critical property for many industrial applications. This pa
2、per aims to review the literature on the effects of CeO2 on the wear resistance of rubber materials and to provide insights into the underlying mechanisms.Firstly, a brief introduction to CeO2 is provided. CeO2 is a rare earth metal oxide with the chemical formula CeO2. It has remarkable physicochem
3、ical properties, including high thermal stability, excellent catalytic activity, and good biocompatibility. In recent years, CeO2 has gained increasing attention due to its potential for various applications, including energy storage, environmental remediation, and biomaterials.Next, the effect of C
4、eO2 on the wear resistance of rubber materials is reviewed. A number of studies have reported that CeO2 can significantly enhance the wear resistance of rubber materials. For instance, El-Sherbiny et al. (2014) investigated the effect of CeO2 on the wear resistance of natural rubber (NR) and found t
5、hat the addition of CeO2 resulted in a significant improvement in wear resistance. Similarly, Ding et al. (2016) reported that CeO2 addition could improve the wear resistance of chloroprene rubber (CR) and nitrile-butadiene rubber (NBR).The underlying mechanisms by which CeO2 enhances the wear resis
6、tance of rubber materials are complex and depend on several factors, including the type of rubber, the concentration of CeO2, and the processing conditions. Some possible mechanisms for the improvement of wear resistance by CeO2 are discussed here.Firstly, CeO2 is thought to act as a reinforcing fil
7、ler in rubber materials, which can improve the mechanical properties of the rubber matrix. This effect can increase the resistance of the rubber material to abrasion and wear. Secondly, CeO2 can reduce the friction coefficient between the rubber material and the contacting surface, which can decreas
8、e the wear rate of the rubber material. Finally, CeO2 can scavenge free radicals generated during the rubber degradation process, which can slow down the aging and wear of rubber materials.In conclusion, CeO2 has been shown to be a promising additive for improving the wear resistance of rubber mater
9、ials. The mechanisms by which CeO2 enhances wear resistance are complex and may depend on various factors. Further research is needed to fully elucidate the mechanisms and to optimize the method of adding CeO2 to rubber materials. Nevertheless, the application of CeO2 is expected to continue to grow
10、 and will play an essential role in the development of high-performance rubber materials.Besides its advantages in improving wear resistance, CeO2 has also been demonstrated to enhance various other properties of rubber materials. For example, CeO2 has been found to increase the tensile strength and
11、 modulus of elasticity of rubber composites, leading to improved durability and toughness. This effect is attributed to the reinforcing effect of CeO2 on the rubber matrix, which is due to its high aspect ratio and large surface area.In addition, CeO2 has been shown to enhance the damping and viscoe
12、lastic properties of rubber materials, resulting in reduced noise and vibration in various applications such as automotive and industrial machinery. This effect is mainly attributed to the formation of a more homogenous rubber matrix due to the addition of CeO2, which can reduce the energy dissipati
13、on during deformation and enhance the mechanical damping.Another interesting application of CeO2 in rubber materials is in improving their flame retardant properties. CeO2 has been found to efficiently inhibit the combustion behavior of various types of rubbers, such as EPDM, SBR and NBR, due to its
14、 ability to capture and scavenge free radicals generated during the combustion process. This effect is particularly significant in reducing the release of toxic smoke and other hazardous gases, which can result in serious safety hazards in certain applications such as transportation and construction
15、.Overall, the application of CeO2 in rubber materials offers a wide range of benefits and has received increasing attention in recent years. With the development of new technologies and advanced processing methods, it is expected that the utilization of CeO2 in rubber composites will continue to exp
16、and and will contribute to the development of high-performance rubber materials with enhanced properties.In addition to the aforementioned advantages, CeO2 nanoparticles have also been reported to exhibit anti-aging effects in rubber materials. Rubber materials are prone to aging due to exposure to environmental factors such as UV radiation, heat, and oxygen. This can lead to reduced performance, such as decreased elasticity and increased hardness. However, by a
