The foamed rubber products processed from natural rubber have high strength, good elasticity and light texture, and are widely used in various applications. In actual production, the appropriate use of reclaimed rubber in the formulation of natural rubber foam products can reduce the cost of raw materials. Latex reclaimed rubber, tire reclaimed rubber, and sole reclaimed rubber are all ideal choices. Rubber product manufacturers choose appropriate types of reclaimed rubber according to actual needs. , Reasonably determine the proportion of reclaimed rubber added and adjust the formula appropriately to prepare natural rubber foam products with higher cost performance.
1. Use latex reclaimed rubber alone
250 parts of latex reclaimed rubber, 2 parts of sulfur, 5 parts of accelerator, 8 parts of stearic acid, anti-aging agent 2, 18 parts of semi-reinforcing carbon black, 25 parts of calcium carbonate, 40 parts of rubber oil, 30 parts of petroleum jelly, black ointment 30 parts, 7 parts of blowing agent H, 10 parts of alum, 15 parts of baking soda; total: 442 parts.
2. Natural rubber + tire reclaimed rubber
50 parts of natural rubber, 300 parts of reclaimed tire tread rubber, 4 parts of sulfur, 5.5 parts of accelerator, 1.5 parts of zinc oxide, 8 parts of stearic acid, 2 parts of antioxidant, 70 parts of light calcium, 27 parts of clay, 15 parts of rubber oil Parts, 4 parts foaming agent H, 5 parts alum, 6 parts baking soda; total: 495 parts.
3. Natural rubber + sole reclaimed rubber
50 parts of natural rubber, 200 parts of sole reclaimed rubber, 3.5 parts of sulfur, 4 parts of accelerator, 1.5 parts of zinc oxide, 6.5 parts of stearic acid, 2 parts of antioxidant, 48 parts of calcium carbonate, 24 parts of clay, 3 parts of rubber oil, 27 parts of ointment, 2.5 parts of foaming agent H, 3 parts of alum, 4 parts of baking soda; total: 379 parts.
4. Low-cost foam product vulcanization system
When using reclaimed rubber to reduce the production cost of natural rubber foam products, the design of the vulcanization system directly affects the comprehensive indicators of the foam products. Rubber product manufacturers may wish to use accelerator DM as the main accelerator, combined with accelerator D and accelerator M; or use accelerator TT as the main2LLYY911 accelerator, combined with accelerator DM and accelerator M, and foam according to the requirements of foam products. Speed determines the type and amount of accelerator, further coordinate the relationship between the vulcanization speed of reclaimed rubber and the foaming speed, and improve the physical properties of foamed products.
Natural rubber has good compatibility with reclaimed latex rubber, reclaimed tire rubber, and reclaimed sole rubber. Among them, reclaimed latex rubber has a high effective rubber hydrocarbon content. Pure reclaimed latex rubber can directly replace natural rubber to produce high-performance foamed products; tire regeneration Rubber and sole reclaimed rubber can be used to prepare ordinary foamed products alone, or used with natural rubber to produce higher-index sponge foamed rubber products. The editor will continue to discuss with you about the production technology of sponge foamed products.
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