Nitrile reclaimed rubber is mainly processed from waste nitrile rubber, waterlogged nitrile or waste nitrile rubber products. It retains the basic performance characteristics of nitrile rubber and has excellent oil resistance. It can replace nitrile rubber to prepare oil-resistant rubber products and reduce costs. , The oil-resistant conveyor belt is one of them. In actual production, the performance requirements of nitrile oil-resistant conveyor belts for different applications are different, and the physical properties of different rubber layers of the same conveyor belt are different. So how should oil-resistant conveyor belt manufacturers choose the correct nitrile reclaimed rubber?
1. Consider the oil resistance of the conveyor belt
When using nitrile reclaimed rubber to reduce the raw material cost of oil-resistant conveyor belts, it is necessary to understand the oil resistance requirements of the conveyor belt itself. The acrylonitrile content is the main factor affecting the oil resistance of the rubber. In theory, the higher the acrylonitrile content, the better the oil resistance of the nitrile rubber. it is good. In actual production, nitrile rubber with acrylonitrile content is mostly selected to prepare oil-resistant conveyor belt, which has good oil resistance and process performance. When using reclaimed rubber to reduce the production cost of oil-resistant conveyor belts, it is recommended to choose medium-to-high acrylonitrile content nitrile reclaimed rubber to ensure the oil resistance of the rubber.
Because the higher the acrylonitrile content, the worse the cold resistance of the rubber. Therefore, it is not recommended to use nitrile rubber and reclaimed rubber with high acrylonitrile content when using nitrile rubber and nitrile reclaimed rubber to produce oil-resistant conveyor belts that have certain requirements for cold resistance. .
2. Consider the requirements of conveyor belt indicators
When choosing nitrile reclaimed rubber for oil-resistant conveyor belts, generally choose the product with the closest index to the oil-resistant conveyor belt, so as to increase the amount of reclaimed rubber and reduce more raw material costs. In actual production, oil-resistant conveyor belt cover rubber 2YLYY616 requires good oil resistance, tensile strength, abrasion resistance, aging resistance, tear resistance, etc.; cloth layer rubbing is required to have good adhesion to the rubber and fatigue resistance. The performance requirements are higher; the cushion rubber requires the rubber to have the characteristics of good adhesion, large elasticity, low heat generation, and fast heat dissipation.
3. Consider the color of the oil-resistant conveyor belt
Oil-resistant conveyor belts have different colors for different applications. For example, some nitrile conveyor belt covers are white, green, etc. At this time, it is recommended to use light-colored nitrile reclaimed rubber, which is easy to match and not easy to change color. In actual production, when using nitrile reclaimed rubber to produce light-colored oil-resistant conveyor belts, it is recommended to choose environmentally friendly nitrile reclaimed rubber. Amine antioxidants are not recommended to effectively avoid problems such as discoloration and migration of the conveyor belt, and further reduce costs while further Improve the comprehensive index of nitrile oil-resistant conveyor belt.
In actual production, nitrile reclaimed rubber can be used together with virgin nitrile rubber, or nitrile reclaimed rubber/nitrile rubber/styrene butadiene rubber or nitrile reclaimed rubber/nitrile rubber/chloroprene rubber in an appropriate ratio. , Improve the production process of the oil-resistant conveyor belt and the physical properties of the finished product, reduce more raw material costs and production energy consumption.
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