Red ordinary rubber plate is a red plate processed from rubber as the main material, which mainly plays a general role in sealing, protection and protection, such as workshop warehouse floor, temporary walkway for construction technology, automobile parts liners, electronic equipment insulation materials, etc., which are generally processed with natural rubber as the main raw material; The appropriate amount of red latex reclaimed rubber can effectively reduce the production cost of red ordinary rubber sheet.
Compared with other colors of latex reclaimed rubber, red natural reclaimed rubber is used in the production of red ordinary rubber sheets, which is easy to match and not easy to change color.
1. Vulcanization formula of red ordinary rubber plate mixed with latex reclaimed rubber
Formula 1: 70 parts of natural rubber, 30 parts of red natural latex reclaimed rubber, 6 parts of zinc oxide, 2 parts of stearic acid, 1 part of antioxidant D, 2 parts of paraffin, 50 parts of barite powder, 150 parts of light calcium, 5 parts of magnesium carbonate, 2 parts of iron oxide red, 4 parts of engine oil, 4 parts of asphalt, 0.35 parts of accelerator D, 1.05 parts of accelerator, 0.8 parts of accelerator M, 2.1 parts of sulfur; total, 330.3 copies.
Formula 2: 50 parts of natural rubber, 50 parts of red natural latex reclaimed rubber, 4 parts of zinc oxide, 0.8 parts of stearic acid, 1 part of antioxidant A, 1 part of antioxidant D, 2 parts of paraffin, 10 parts of iron oxide red, 195 parts of light calcium, 10 parts of engine oil, 1.6 parts of accelerator CZ, 0.4 parts of accelerator TMTD, 0.9 parts of sulfur, 0.3 parts of phthalic anhydride; Total: 327 copies.
2. Precautions for the design of the vulcanization formula of the red ordinary rubber plate mixed with latex reclaimed rubber
When using latex reclaimed rubber to replace part of natural rubber to produce red ordinary rubber sheets, it is necessary to reasonably determine the mixing ratio of latex reclaimed rubber according to the physical properties of latex reclaimed rubber and the specific performance requirements of rubber sheets. When latex reclaimed rubber replaces natural rubber, the effective rubber portion of recycled rubber is used to calculate.
Latex reclaimed rubber contains rubber hydrocarbons that can be vulcanized, and it needs to be combined with sulfur and accelerator necessary for rubber hydrocarbons, otherwise it is easy to cause the problem of insufficient vulcanization. The product name and formula standard of sulfur, accelerator, raw rubber and red latex reclaimed rubber 2SLYY127 were respectively determined, and the dosage was calculated. Compared with raw rubber, the amount of sulfur and accelerator used in recycled rubber can be increased by about 20%. Red latex reclaimed rubber contains a certain amount of carbon black and zinc oxide, and the amount of carbon black in the formula of red ordinary rubber plate containing reclaimed rubber needs to be appropriately reduced.
Natural rubber production of red ordinary rubber plate appropriate amount of latex reclaimed rubber, can not only effectively reduce the cost of raw materials, but also improve the processing technology performance of rubber, plasticity, good fluidity, low power consumption, small expansion and contraction, stable plasticity, less processing heat, good vulcanization flatness, small vulcanization return, good aging resistance of the finished product. In the follow-up, Xiaobian will continue to share with you the key points of the production process of red ordinary rubber board produced by latex reclaimed rubber.
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