Nitrile rubber has excellent oil resistance and wear resistance, can be used for a long time at higher temperatures, and is often used to produce rubber roller products used in the printing and dyeing industry, packaging industry, chemical fiber and other industries, especially printing rubber rollers. The performance of the aliphatic hydrocarbon-resistant solvent is remarkable. In the actual production process, the nitrile rubber compound has poor rollability, low self-adhesiveness and high heat generation during the mixing process. Therefore, it is necessary to improve the processing performance of the nitrile rubber roller by certain measures. Method:
1. The nitrile rubber roller formula is mixed with an appropriate amount of natural rubber.
Natural rubber is the most traditional rubber variety. Its main component is rubber hydrocarbon. It has high mechanical strength and good hand elasticity. It has certain miscibility with nitrile rubber. It can be used in the production of nitrile rubber roller to improve the processing technology of nitrile rubber. The properties can be vulcanized using the same vulcanization component when used. However, nitrile rubber belongs to polar rubber, natural rubber and typical non-polar rubber. The polarity of the nitrile rubber is very different. Therefore, when using natural rubber to improve the processing performance of nitrile rubber roller, the amount of natural rubber should not be too much. Below 20 copies.
2. The nitrile rubber roller formula is mixed with an appropriate amount of nitrile reclaimed rubber.
The nitrile reclaimed rubber is the product of recycling and recycling of waste nitrile rubber products. The high-quality nitrile reclaimed rubber raw material also uses the secondary brand nitrile rubber or nitrile water gel, which retains the basic performance characteristics of nitrile rubber and oil resistance. Excellent wear resistance, and its fluidity, plasticity and vulcanization flatness are better than nitrile rubber. Compressive permanent deformation and mixing heat generation are lower than nitrile rubber. It can be improved in the nitrile rubber rubber compound. The fluidity, plasticity, and roll-to-roll properties of the rubber compound reduce the heat generation of the rubber compound. Nitrile reclaimed rubber is much cheaper than nitrile rubber. In the production of nitrile rubber rolls, it not only improves the processing performance, but also reduces the cost of raw materials.
The use of an appropriate amount of natural rubber or nitrile reclaimed rubber in the production of rubber rolls with nitrile rubber as the main raw material can improve the process performance of the rubber compound; however, the compatibility of natural rubber and nitrile rubber is better than that of nitrile rubber/butyronitrile. Recycled rubber has poor compatibility, and the price of natural rubber is much higher than that of nitrile reclaimed rubber. Therefore, Xiaobian prefers to use nitrile reclaimed rubber to improve the process performance of nitrile rubber roller.
In actual production, the molecular structure and performance characteristics of nitrile reclaimed rubber and nitrile rubber are basically the same, but the waste of nitrile rubber and nitrile hydrogel and sub-brand nitrile rubber are seriously damaged during the processing. The mechanical strength and feel elasticity of nitrile reclaimed rubber are different from those of nitrile-based rubber. Therefore, when nitrile reclaimed rubber is used to improve the processing performance of nitrile rubber roller, the high-capacity nitrile reclaimed rubber should be selected as much as possible according to actual needs. Reasonably control the amount of nitrile reclaimed rubber in the formula, adjust the nitrile rubber/recycled rubber in time and use the rubber formula.