When using butyl reclaimed rubber to produce rubber products, a reasonable vulcanization system and appropriate vulcanization process conditions can improve the ozone resistance of butyl reclaimed rubber products; in the actual production process, the reinforcing agent in the formulation of butyl reclaimed rubber products, How do fillers, softeners, rubber oils, and antioxidants affect the ozone resistance of butyl reclaimed rubber products? What aspects can be improved by improving the ozone resistance of butyl reclaimed rubber products?
(2) Optimizing the butyl reclaimed rubber product reinforcing filling system to improve the ozone resistance of the rubber
Butyl reclaimed rubber products require reinforcing agents to improve the physical and mechanical properties of butyl rubber. Fillers are needed to increase product volume and reduce production costs. In the processing of butyl reclaimed rubber products, the addition of a small amount of high-reinforcing carbon black will have a slight effect on the ozone resistance of butyl reclaimed rubber products. The high-filling rubber filler will have less influence on the ozone resistance of butyl reclaimed rubber. The coarser the filler particles, the more the amount, the greater the effect on the ozone resistance of the butyl reclaimed rubber products. Therefore, in the production of butyl reclaimed rubber products with special requirements for ozone resistance, rubber product manufacturers should reduce the amount of high-reinforcing rubber filler and coarse particle filler as much as possible while satisfying the mechanical strength.
(3) Softener affects ozone resistance of butyl reclaimed rubber products
The rubber softener can improve the fluidity and plasticity of the rubber compound during the processing of the butyl reclaimed rubber product, reduce the viscosity of the rubber compound and the mixing temperature, improve the dispersibility and mixing property of the compounding agent in the rubber compound, and further improve the butyl reclaimed rubber. The tensile strength, elongation at break and wear resistance of the product reduce production energy consumption. However, during the processing, the addition of some softening oil will reduce the ozone resistance, heat resistance and compression set resistance of the butyl reclaimed rubber. Therefore, it is reasonable to control the amount of softener and rubber oil in the formulation of the butyl reclaimed rubber product. It can improve the ozone resistance of butyl reclaimed rubber products.
(4) Specimens of anti-aging agents with remarkable effects on ozone resistance
Among the various compounding agents used in rubber products, the effect of the anti-aging agent for delaying the aging time of the rubber product is most obvious. There are many kinds of rubber anti-aging agents, including ozone-resistant anti-aging agents. The main role of anti-aging agent AW in amine anti-aging agents is to prevent ozone aging and fatigue aging. Anti-aging agent 4010 and anti-aging agent 4010NA are resistant to ozone and flex fatigue. With excellent protective effect, anti-aging agent H has better protection effect against ozone and flex fatigue.
When using butyl reclaimed rubber to produce rubber products with high ozone resistance requirements, it is necessary to increase the amount of rubber in the entire formulation as much as possible, and to reduce the amount of rubber filler and rubber oil and increase the butyl regeneration as much as possible while meeting other requirements. Glue is ozone resistant. The use of ozone-resistant anti-aging agents in combination with other types of antioxidants further improves the overall performance of butyl reclaimed rubber products.