The rubber battery tank and tank cover require the rubber compound to have good corrosion resistance, impact resistance, insulation and sealing, generally using natural rubber, styrene-butadiene rubber or butadiene rubber as the main raw material, with a large amount of sulfur processing, or rubber and plastic blending. Tire reclaimed rubber has the basic performance characteristics of rubber, and has good compatibility with natural rubber and general synthetic rubber, and can be used in combination with it to produce battery tank covers, effectively reducing the cost of raw materials.
1. Natural rubber/tread reclaimed rubber/low-density polyethylene production battery tank cover vulcanization formula
70 parts of natural rubber, 20 parts of tread reclaimed rubber, 10 parts of low-density polyethylene, 4 parts of magnesium oxide, 0.6 parts of stearic acid, 1 part of antioxidant A, 3.6 parts of paraffin, 32 parts of clay, 165 parts of white mud powder, 6 parts of carbon black, 4 parts of calcium-based grease, 20 parts of asphalt, 1.5 parts of engine oil, 0.8 parts of accelerator D, 0.3 parts of accelerator M, 0.8 parts of DCP, 34.4 parts of sulfur; A total of 374 copies.
2. Natural rubber/styrene-butadiene rubber/tread reclaimed rubber produces vulcanization formula for battery tank cover
60 parts of natural rubber, 20 parts of styrene-butadiene rubber, 20 parts of tread reclaimed rubber, 4 parts of magnesium oxide, 0.5 parts of stearic acid, 4 parts of paraffin, 165 parts of white mud powder, 32 parts of clay, 6 parts of carbon black, 4 parts of calcium-based grease, 20 parts of asphalt, 1.5 parts of engine oil, 1.8 parts of accelerator D, 0.7 parts of accelerator M, 36 parts of sulfur; Total 375.5 copies.
3. Natural rubber/styrene-butadiene rubber/butadiene rubber/tread reclaimed rubber produces vulcanization formula for battery tank covers
55 parts of natural rubber, 12.5 parts of styrene-butadiene rubber, 12.5 parts of butadiene rubber, 20 parts of tread reclaimed rubber, 4 parts of magnesium oxide, 0.5 parts of stearic acid, 4 parts of paraffin, 165 parts of white mud powder, 32 parts of clay, 4 parts of calcium-based grease, 20 parts of asphalt, 6 parts of carbon black, 1.5 parts of engine oil, 1.8 parts of accelerator D, 0.7 parts of accelerator M, 36 parts of sulfur; Total 375.5 copies.
4. The key points of the design of the tread reclaimed rubber formula for the battery trough and the trough cover
(1) Glue content: The hard rubber used for battery trough and slot cover is generally processed from natural rubber, natural rubber and styrene-butadiene rubber or butadiene rubber as raw materials, and the glue content needs to be controlled at 20%-30% when the appropriate amount of tread reclaimed rubber is used.
(2) Vulcanization system: when the tread reclaimed rubber is used in combination with natural rubber and styrene-butadiene rubber to produce the battery trough and slot cover, sulfur vulcanization is mostly used, and the sulfur dosage in the trough formula takes into account the heat resistance and impact resistance of the product; The amount of sulfur in the tank cover can be appropriately reduced, and the impact resistance of the vulcanized rubber material is better; The accelerator is a combination of inorganic accelerator (magnesium oxide) and organic accelerator (accelerator D and M).
(3) Filling system: a large number of acid-resistant fillers, such as clay, white mud powder, pulverized coal, to improve the heat resistance and corrosion resistance of the battery trough and tank cover rubber, etc., the amount of filler can reach 1.5-3 times of the amount of rubber; pulverized coal can give the surface of the product better brightness, but the heat resistance and impact resistance are poor.
(4) Softening system: use asphaltE5LYY12, petroleum jelly and paraffin wax to improve the processing technology performance of natural rubber, styrene-butadiene rubber, butadiene rubber and tread reclaimed rubber; Paraffin wax can make the surface gloss of the battery tank and tank cover better.
In actual production, the performance requirements of battery troughs and slot covers in different use occasions are different, and some products can be mixed with tire reclaimed rubber in large quantities.
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