When producing rubber products using reclaimed rubber, rubber fillers, reinforcing agents, and extenders are indispensable yet easily confused rubber additives, with significant differences in mechanisms of action, effects on performance, and application scenarios. So, what is rubber reinforcement, and what is rubber filling? What exactly are the differences among the fillers, reinforcing agents, and extenders used in the production of reclaimed rubber products?
1. What is rubber reinforcement?
Rubber reinforcement refers to the action of improving rubber's mechanical properties such as tensile strength, wear resistance, tear strength, and stress at a given strain by adding a large amount of substance, thereby enhancing performance and extending the service life of the product.
2. What is rubber filling?
In rubber processing, adding a large amount of certain substances can increase the volume of rubber, reduce the cost of rubber products, and improve the processing performance of rubber, without significantly affecting the product's physical and mechanical properties. This is called rubber filling.
When producing rubber products with reclaimed rubber, there is no absolute boundary among filling and reinforcement. For example, a large amount of carbon black inherently has both filling and reinforcing functions.
3. What is reclaimed rubber filler?
In the production of reclaimed rubber products, substances used in large quantities that can improve the rubber's physical and mechanical properties, processing performance, and reduce the cost of the rubber compound are called fillers. The main function of fillers is to improve the rubber's physical and mechanical properties and processing performance, and reduce product costs.
Rubber fillers are generally divided into reinforcing fillers (i.e., reinforcing agents) and non-reinforcing fillers (i.e., extenders).
4. What is a reclaimed rubber reinforcing agent?
In the production of reclaimed rubber products, substances that can improve the tensile strength, stress at a given strain, tear strength, wear resistance, and other properties of reclaimed rubber are called reinforcing agents. Their main role is to enhance the physical and mechanical properties of E5LYY1022 reclaimed rubber. The most commonly used reinforcing agent in reclaimed rubber products is carbon black, while white carbon black or ultra-fine inorganic fillers can be used for light-colored reclaimed rubber products.
5. What is a reclaimed rubber extender?
In the production of reclaimed rubber products, substances used in large quantities to increase the volume of reclaimed rubber, reduce costs, or improve processing performance are called extenders. The function of extenders is to increase the volume of reclaimed rubber and reduce product costs. Common extenders in reclaimed rubber products include kaolin, calcium carbonate, and wood flour.
When producing rubber products primarily from reclaimed rubber, the reasonable use of reinforcing agents and extenders can not only improve the physical and mechanical properties and processing performance of the rubber products but also further reduce raw material costs.
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