The use of a certain proportion of tire reclaimed rubber in motorcycle tire tread rubber can reduce the production cost, expand the application range of reclaimed rubber, and solve the problem of some waste tire pollution. It can be said that it is more than one weapon; but it is blended in motorcycle tread rubber. There is a precondition for reducing the production cost with tire reclaimed rubber - it can not reduce the various indexes of motorcycle tread rubber. At this time, the design of rubber product formula is particularly important; according to the actual demand and the tire reclaimed rubber index and dosage, the motorcycle tire can be adjusted reasonably. The face gel formula can further improve the economic benefits.
1. Add 10 parts of tire reclaimed rubber to motorcycle tire tread rubber
60 parts of natural rubber, 30 parts of butadiene rubber, 10 parts of styrene-butadiene rubber, 10 parts of tire reclaimed rubber, 5 parts of zinc oxide, 3 parts of stearic acid, 1.4 parts of paraffin, 1 part of antioxidant RD, 1.2 parts of anti-aging agent 4010, Antioxidant H 0.3 parts, carbon black N220 27 parts, carbon black N330 20 parts, coumarone 3 parts, heavy oil 6 parts, accelerator DM, 1 part, accelerator CZ, 0.8 parts, sulfur 1.3 parts; total: 181 parts .
2. Add 20 parts of tire reclaimed rubber to motorcycle tire tread rubber
60 parts of natural rubber, 30 parts of butadiene rubber, 10 parts of styrene-butadiene rubber, 20 parts of tire reclaimed rubber, 5 parts of zinc oxide, 2.5 parts of stearic acid, 0.8 parts of paraffin, 0.7 parts of anti-aging agent RD, and 40 parts of anti-aging agent 4010. Antioxidant H 0.3 parts, carbon black N220 30 parts, high wear resistant furnace black 15 parts, white carbon black 5 parts, heavy oil 8 parts, accelerator DM 0.8 parts, accelerator CZ, 1.1 parts, sulfur 1.3 parts; total: 191.5 Share.
Tests show that when 20 parts of tire reclaimed rubber is blended in the tire tread rubber of motorcycle, according to the above formula, when vulcanized at 142 ° C for 25 min, the hardness of vulcanized rubber is 50 degrees, tensile strength is 19.7 MPa, 300%. The tensile stress can reach 5.78 MPa, the elongation at break is 650%, the permanent deformation is 20%, the tear strength is 109 kN/m, the Accra wear is 0.16 cm3, and the aging coefficient is 0.87.
The above data can meet the basic performance requirements of motorcycle tire tread rubber. It can be seen that it is feasible to mix the appropriate amount of tire reclaimed rubber in the tire tread rubber to reduce the production cost. From the above two formulations, we can see that the amount of reclaimed rubber in the tire is adjusted under the condition that the amount of natural rubber, butadiene rubber and styrene-butadiene rubber is constant, and the vulcanization system, reinforcing system, softening system and anti-aging system in the formula are respectively The type and amount of the compounding agent need to be appropriately adjusted.
When the tire reclaimed rubber is used in the tire tread rubber of the motorcycle, the dosage of the reclaimed rubber can be adjusted according to the actual performance requirements of the tread rubber and various indexes of the tire reclaimed rubber, wherein the waste tire tread is processed from raw materials. The high-strength tire tread reclaimed rubber itself has high strength and good elasticity, and can improve the tear strength and wear resistance of the rubber product to a certain extent, and the amount thereof can be appropriately increased to reduce more production cost.