Tire reclaimed rubber is made by processing the rubber parts of waste tires through crushing, desulfurization, refining, and other processes. It can be used alone or combined with natural rubber, styrene-butadiene rubber, and cis-butadiene rubber to produce various rubber products, reducing raw material costs. Low-pressure insulating rubber outsoles are generally made from natural rubber or a combination of natural rubber/polybutadiene rubber as raw materials. Can tire reclaimed rubber be added? What should be noted when mixing tire reclaimed rubber into low-pressure insulating outsoles of natural rubber? Which additives are selected in the formula?
1. Tips for selecting reclaimed rubber for tires for natural rubber low-pressure insulated soles
Low-pressure insulating rubber soles usually use fabric uppers. The insulating rubber insulating insulating insoles are vulcanized and molded, providing electrical isolation under dry conditions; Rubber soles require long-term insulation in complex working environments E6LYY413. When adding tire reclaimed rubber to natural rubber low-pressure insulating outsoles to reduce costs, it is required that the reclaimed rubber must not contain metal components to prevent the formation of conductive channels. It is recommended to choose ultra-fine filter tire reclaimed rubber, which is fine, free of impurities, and meets the basic requirements for low-pressure insulating soles.
2. The natural rubber low-pressure insulating sole is blended with a practical formula of tire reclaimed rubber
(1) Low-pressure insulating sole formulations are produced using a combination of natural rubber and tire reclaimed rubber
Natural rubber 75 parts, tire reclaimed rubber 25 parts, zinc oxide 5 parts, stearic acid 2 parts, antioxidant A 0.5 parts, antioxidant D 0.6 parts, carbon black N774 60 parts, clay 8 parts, engine oil 10 parts, industrial grease 4 parts, Gumarone resin 6 parts, accelerator D 0.7 parts, accelerator DM 0.9 parts, accelerator M 1.8 parts, sulfur 1.7 parts; A total of 201.2 copies.
(2) Low-pressure insulating sole formulas are produced using a combination of natural rubber, polybutadiene rubber, and tire reclaimed rubber
Natural rubber 40 parts, cis-butadiene rubber 15 parts, tire reclaimed rubber 45 parts, zinc oxide 3 parts, stearic acid 1.8 parts, antioxidant A 0.5 parts, antioxidant D 0.5 parts, carbon black N774 45 parts, kaolin 10 parts, engine oil 6 parts, industrial grease 8 parts, accelerator D 0.55 parts, accelerator DM 0.55 parts, accelerator M 1.45 parts, sulfur 1.35 parts; A total of 178.7 copies.
(3) Natural rubber produces low-pressure insulating sole formulas
Natural rubber 100 parts, zinc oxide 5 parts, stearic acid 1.5 parts, anti-aging agent D 1 part, light calcium carbonate 55 parts, talc powder 55 parts, magnesium carbonate 25 parts, naphthenic oil 12 parts, accelerator TMTD 2.5 parts, colorant 4 parts; 261 copies.
When producing low-pressure insulating soles with natural rubber, the proper use of reclaimed rubber can effectively reduce raw material costs while ensuring sole quality. The main raw material for high-strength eco-friendly tire top reclaimed rubber is waste tire top rubber powder weighing above 80 mesh, weighing 900-1200. It is processed through processes such as crushing, magnetic separation, desulfurization filtration, and refining and molding. It features high fineness, low specific gravity, high strength, good elasticity, odorlessness, and no impurities. It can be used together with natural rubber and polybutadiene rubber to produce low-pressure insulating shoe soles, reducing costs while significantly improving the tear resistance and flex resistance of rubber products themselves.
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