The butyl reclaimed rubber is mostly processed from the waste butyl inner tube as the main raw material, and most of them are used in the production of various butyl inner tubes to reduce the production cost of pure butyl rubber inner tube under the precondition of ensuring the quality of the butyl inner tube. . When butyl rubber is used instead of butyl rubber to produce all butyl rubber products, including butyl inner tubes, most petroleum softeners are used. Why? How does a petroleum softener regulate the performance of butyl regenerated rubber products?
Petroleum rubber oils mainly include paraffin oils, aromatic oils, and naphthenic oils. They have wide sources and low prices. They can play a role in softening and plasticizing and improving the processing technology of butyl reclaimed rubber in the production of butyl regenerated rubber products. It is a good compatibility of paraffin oil and butyl reclaimed rubber, and has a significant effect of softening and plasticizing.
1. Petroleum-based softeners affect the physical and mechanical properties of butyl regenerated rubber products. With the increase in the amount of softeners, the tensile strength, elongation stress and elongation at break of butyl regenerated rubber products increase, and the hardness decreases.
2. The increase in the use of petroleum softeners will reduce the Mooney viscosity of the butyl reclaimed rubber, increase the scorch time, and improve the extrusion performance. It can improve the processing performance of the butyl reclaimed rubber and improve the scorch safety of the butyl regenerated rubber products.
3. Petroleum softeners affect the performance of butyl reclaimed rubber products. Generally, as the use of petroleum-based softeners increases, the compression set of butyl reclaimed rubber products decreases, and the service life of butyl regenerated rubber products can be extended. The sealing effect of butyl sealing products; the ozone resistance and heat resistance of butyl regenerated rubber products have been reduced, so it is necessary to take certain measures to improve its anti-aging properties such as using resin vulcanization or adding antioxidants.
Petroleum softeners can significantly improve the processing performance of butyl reclaimed rubber products. Different types of petroleum softeners have different softening effects in butyl regenerated rubber products. Rubber product manufacturers must choose the right product according to their own needs: paraffin oil The butyl reclaimed rubber product does not affect the elasticity and heat resistance of rubber products and can be used in large quantities; aromatic oils are more suitable for use in dark butyl reclaimed rubber products, the amount can be more than 30 parts, and the processing performance is better than paraffin oil and Naphthenic oils are good; naphthenic oils are less polluting.