Nitrile reclaimed rubber has good oil resistance and low price, and is an ideal raw material for producing various oil-resistant rubber products instead of nitrile rubber. Many nitrile reclaimed rubber products need to add proper amount of carbon black in the production process. Carbon black is an important reinforcing agent in the production of reclaimed rubber products. It is very important to improve the performance of nitrile regenerated rubber products and prolong the service life of products. The significance.
The main reason why the nitrile reclaimed rubber products need to be added with carbon black in production is to improve the defect of poor crystallinity of nitrile reclaimed rubber and improve the reinforcing property of the rubber. There are many types of carbon black, and different types of carbon black play different roles in various nitrile reclaimed rubber products. For example, semi-reinforcing carbon black is generally used in ordinary oil-resistant rubber products to increase rubber reinforcement. Performance, the amount of about 60-100 copies; nitrile rubber reclaimed rubber in addition to good oil resistance, but also can be used to produce high wear resistant rubber products such as wear pads, this time you can use high wear resistance, wear-resistant carbon The purpose of blackening is to improve the wear resistance of nitrile reclaimed rubber products, and the optimum amount is 50-60 parts. In addition, when using nitrile rubber reclaimed rubber products to produce highly elastic rubber products, coarse particles of soft carbon black are mostly used. The reason is that the coarse-grained soft carbon black can increase the elasticity and elasticity of rubber products without affecting the oil-resistant and wear-resistant properties of the nitrile regenerated rubber products. The carbon black can be filled in large quantities in nitrile regenerated rubber products.
In the actual production of nitrile reclaimed rubber products, whether semi-reinforcing carbon black, highly wear-resistant carbon black, or soft carbon black, their role in nitrile reclaimed rubber products is nothing more than to improve the performance of reclaimed rubber products. (For example, reinforcement, wear resistance, resilience) to extend the service life of nitrile reclaimed rubber products in a specific working environment. The semi-reinforcing carbon black can give the nitrile rubber reclaimed rubber compound high elongation, low heat build-up, high elasticity, and aging resistance; high wear-resistance carbon black can improve the tensile strength, tear strength, and wear resistance of rubber products. Etc. Soft carbon black has poor reinforcing effect and is mainly used as filler material. Therefore, when selecting the type and amount of carbon black to be added in the formulation of nitrile reclaimed rubber products, it is necessary to select the appropriate type of carbon black according to the product's own performance requirements and use conditions, and it is impossible to select the coarse quality in the ultrafine nitrile rubber hose. Carbon black, right?
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