Butyl rubber has the characteristics of good air tightness, heat resistance, chemical resistance, sound absorption, shock absorption, etc., and is widely used in the production of tire inner tubes, sealing products, anti-corrosion products, rubber linings, pipes, conveyor belts, waterproof materials, etc. In actual production, the hardness of butyl rubber 2YLYY1123 products in different applications is different, and the production formula is very different. The editor today shares with you several reference formulas for butyl rubber of different hardness.
1. Hardness is about 30 degrees
100 parts of butyl rubber, 5 parts of zinc oxide, 3 parts of stearic acid, 100 parts of talc, 20 parts of cork, 10 parts of titanium dioxide, 3.3 parts of sodium bicarbonate, 5 parts of paraffin, 30 parts of petrolatum, accelerator MZ 3 Parts, 3 parts of accelerator TMTD, 3 parts of sulfur, total: 285.3 parts.
2. Hardness is about 40 degrees
Dark butyl rubber compound: 100 parts of butyl rubber, 5 parts of zinc oxide, 30 parts of Skyeye Tiger N330, 25 parts of naphthenic oil, 1 part of accelerator DM, 2 parts of accelerator TL, 1 part of sulfur; 164 parts in total.
Light-colored butyl rubber compound: 100 parts of butyl rubber, 20 parts of zinc oxide, 1 part of stearic acid, 0.5 part of antioxidant D, 5 parts of paraffin, 40 parts of white carbon black, 15 parts of lithopone, 0.1 part of orange, 15 parts of petroleum jelly, 2 parts of accelerator DM, 1.5 parts of accelerator TMTD, 0.7 parts of sulfur; a total of 200.8 parts.
3. The hardness is about 50 degrees
100 parts of butyl rubber, 5 parts of zinc oxide, 1 part of stearic acid, 50 parts of carbon black N330, 25 parts of naphthenic oil, 1 part of accelerator DM, 1.9 parts of accelerator TL, 1.5 parts of sulfur; 185.4 parts in total.
4. The hardness is about 60 degrees
100 parts of butyl rubber, 0.5 parts of stearic acid, 2 parts of paraffin wax, 3 parts of carbon black N330, 45 parts of white carbon black, 10 parts of clay, 8 parts of 2402 resin, 6 parts of stannous chloride; 174.5 parts in total.
5. Hardness is about 70 degrees
100 parts of butyl rubber, 5 parts of zinc oxide, 3 parts of zinc stearate, 45 parts of white carbon black, 90 parts of clay, 3 parts of diethylene glycol, 10 parts of naphthenic oil, 2 parts of accelerator M, and TMTD 1.5 Parts, 1.5 parts of sulfur; 261 parts in total.
In actual production, butyl rubber products can also use butyl reclaimed rubber to reduce costs. The indicators of butyl reclaimed rubber used in product formulations of different varieties and the mixing amount of butyl reclaimed rubber are different. For example, the amount of butyl reclaimed rubber in the inner tube of truck tires is controlled below 20 parts, and a large amount of butyl reclaimed rubber can be mixed in the butyl inner tube of Lichee, or even butyl reclaimed rubber can be completely used. When using butyl reclaimed rubber to reduce the production cost of butyl products, the formula must be adjusted appropriately, and the editor will continue to discuss with you later.
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