The reclaimed nitrile rubber produced from waste nitrile rubber products has excellent oil resistance. It can directly replace raw nitrile rubber or use it with appropriate types of rubber and plastic materials to produce various oil-resistant and wear-resistant rubber products, effectively reducing raw material costs. Expanding the scope of use of nitrile reclaimed rubber can not only reduce the raw material cost of oil-resistant products, but also has important significance for alleviating the shortage of domestic rubber resources and solving the environmental pollution problem of waste rubber. So which rubber and plastic materials can be used together with nitrile reclaimed rubber, and what are its characteristics?
1. Combined use of nitrile reclaimed rubber and nitrile rubber
When nitrile reclaimed rubber and nitrile rubber are used together to produce rubber products, generally choose reclaimed rubber products with physical properties close to nitrile rubber products, appropriately increase the amount of nitrile reclaimed rubber, and effectively reduce the cost of raw material 2YLYY510 under the premise of ensuring the quality of the finished product. With the increase in the proportion of nitrile reclaimed rubber, the hardness, tensile strength, elongation at break, etc. of the nitrile rubber will change slightly. The rubber product manufacturer should choose the appropriate nitrile reclaimed rubber according to the specific requirements of the product. , Reasonably control the amount of reclaimed rubber.
In actual production, the nitrile reclaimed rubber can be crushed on a rubber mixing machine with a roller distance of about 1mm and a roller temperature of 60-80℃. The volatiles are volatilized, and then blended with nitrile rubber to make a masterbatch. Choosing an after-effect accelerator such as accelerator CZ can prolong the vulcanization induction period. Choosing two or more anti-aging agents can further improve the aging resistance of the finished product. Appropriately increasing the amount of plasticizer can better adjust the hardness and fluidity of the rubber compound. Wait.
2. Combined use of nitrile reclaimed rubber and neoprene
Chloroprene rubber is a synthetic rubber produced by α-polymerization of chloroprene as the main raw material. It has good mechanical strength, oil resistance, heat resistance, ozone resistance, acid and alkali resistance and other performance characteristics. When nitrile reclaimed rubber is used together with neoprene, the oil resistance and permanent deformation of the vulcanized rubber are basically unchanged.
The process performance of the combined rubber is similar to that of nitrile rubber/reclaimed rubber, except that the mixing temperature should be appropriately lowered. Since the ester plasticizer contained in the nitrile reclaimed rubber can easily lead to the decomposition of the sticking roller or neoprene at high temperature, the mixing temperature should be controlled reasonably, and special attention should be paid to the process conditions when the softener is added. In actual production, attention should be paid to the design of the co-vulcanization system for the combined use of nitrile reclaimed rubber and neoprene to better ensure the physical properties and oil resistance of the combined use of nitrile reclaimed rubber/chloroprene rubber.
In actual production, nitrile reclaimed rubber can also be used together with styrene butadiene rubber, chlorinated polyethylene and other rubber and plastic materials. Tomorrow, the editor will continue to share with you the characteristics of the combined use of nitrile reclaimed rubber and other rubber and plastic materials.
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