The traditional rubber sole generally uses natural rubber as the main raw material, and is used together with an appropriate amount of cis-butadiene rubber to further improve the low-temperature elasticity and wear resistance of the rubber sole. When natural rubber / butadiene rubber is used to produce yellow rubber soles, rubber product manufacturers can fill a small amount of latex reclaimed rubber in the formula to reduce raw material costs and production energy consumption. So how to choose the latex reclaimed rubber in yellow rubber soles in actual production, and how to adjust the rubber sole formula containing latex reclaimed rubber?
1. Selection skills of latex reclaimed rubber in yellow rubber sole production
Yellow belongs to the bright color system, and generally uses pure rubber raw materials. When natural rubber / butadiene rubber is used in combination with latex reclaimed rubber to reduce the production cost of yellow soles, rubber product manufacturers usually choose white latex reclaimed rubber with white color and easy color matching; high rubber content latex reclaimed rubber is more elastic Good, greater elongation at break, which is more beneficial to the comfort of rubber soles; rubber soles are closely related to human health, and need to choose environmentally friendly latex reclaimed rubber, no pollution, no radiation, no penetration, no migration, no irritating odor.
In summary, when selecting latex reclaimed rubber for yellow rubber soles, it is necessary to choose environmentally friendly white latex reclaimed rubber with a high content of rubber to reduce the production cost of rubber soles and further improve the comprehensive performance of rubber soles.
2. Reference formula of yellow rubber sole mixed with latex reclaimed rubber
70 parts of natural rubber, 30 parts of butadiene rubber, 5 parts of zinc oxide, 20 parts of white latex reclaimed rubber, 2 parts of stearic acid, 0.5 parts of antioxidant, 80 parts of calcium carbonate, 15 parts of white carbon black, 30 parts of lithopone , 5 parts of engine oil, 5 parts of Gumarone, 0.2 parts of benzidine yellow, 2.3 parts of accelerator, 2 parts of sulfur; total: 267 parts.
3. Selection of the compounding agent for the yellow rubber sole containing latex reclaimed rubber
When using a small amount of latex reclaimed rubber to reduce the production cost of yellow rubber soles, rubber product manufacturers can use a certain proportion of ultra-fine calcium carbonate 2LLYY0408 when filling with calcium carbonate to improve the tear resistance, compression deformation and flex resistance of yellow rubber soles ; Choose non-polluting anti-aging agent such as anti-aging agent MB, easy to disperse in the rubber, not easy to change color, or use anti-aging agent MB with anti-aging agent DNP, anti-aging agent AP to improve the aging resistance of yellow rubber sole; vulcanization system can choose to promote Agent M and accelerator D are used together, with accelerator M as the main accelerator, the vulcanization speed of the rubber compound is fast, and the rupture elongation and constant tensile stress of the vulcanized rubber are higher.
In actual production, the amount of latex reclaimed rubber in the yellow rubber sole can be adjusted appropriately. When the amount of latex reclaimed rubber increases, rubber product manufacturers need to reduce the amount of calcium carbonate to ensure the physical and mechanical strength and wear resistance of the yellow rubber sole.
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