When using nitrile rubber or nitrile reclaimed rubber to produce rubber products, in order to further improve the processing performance of the nitrile rubber material and the physical and chemical properties of the finished product, an appropriate amount of other rubbers, such as natural rubber, styrene butadiene rubber, and butadiene rubber, can be used together. Butadiene rubber has excellent elasticity, cold resistance and abrasion resistance. The combined use of nitrile rubber or nitrile reclaimed rubber and butadiene rubber can significantly improve the comprehensive physical properties of rubber products and extend the service life of the products.
1. Significance of combined use of nitrile rubber and butadiene rubber
Rubber products processed by using nitrile rubber alone have excellent oil resistance but relatively poor cold resistance and wear resistance, which limits the scope of use of nitrile rubber products. Appropriate use of butadiene rubber in the 2YLYY223 formula of nitrile rubber/reclaimed rubber products can significantly improve the elasticity, cold resistance and abrasion resistance of the finished product. From the perspective of production cost, the price of butadiene rubber is lower than that of nitrile rubber. Therefore, mixing butadiene rubber in nitrile rubber products can reduce the cost of some raw materials.
2. The characteristics of combined use of nitrile rubber and butadiene rubber
When nitrile rubber or nitrile reclaimed rubber is used together with butadiene rubber, as the amount of butadiene rubber increases, the brittle temperature and wear resistance of the combined rubber become better and better, and the oil resistance, tensile performance, and tear strength will follow. Decrease; the resilience, hardness, softening temperature and other indicators of nitrile/butadiene-butadiene rubber are mainly determined by nitrile rubber or nitrile reclaimed rubber. In actual production, rubber product manufacturers need to determine the amount of butadiene rubber added according to the actual performance requirements of the product.
2. Skills for combined use of nitrile rubber and butadiene rubber
When adding butadiene rubber to nitrile rubber products, the amount of butadiene rubber is generally controlled at about 20 parts; the amount of butadiene rubber in nitrile rubber products that do not require high oil resistance can be increased appropriately, especially for products that are resistant to cold and When there are strict requirements for wear and fatigue resistance. When nitrile rubber/reclaimed rubber and butadiene rubber are used together, the traditional sulfur vulcanization system and the use of sulfenamide accelerators can improve the tear resistance of the combined rubber; furnace carbon black reinforcement can significantly improve the nitrile The mechanical properties, resilience, abrasion resistance, etc. of rubber materials are used together.
The use of butadiene rubber in the production of nitrile rubber or nitrile reclaimed rubber products can significantly improve the cold resistance, wear resistance, fatigue resistance and resilience of the products. Comprehensive production cost and product performance, the editor recommends the use of nitrile rubber, nitrile reclaimed rubber and butadiene rubber together to reduce more raw material costs while ensuring product performance.
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