Rubber packing is an industrial sealing flexible material used for the sealing parts of pumps, valves, flanges and other equipment, with rubber as the main raw material, with good elasticity and sealing performance, and is processed by selecting suitable rubber materials according to the use environment. Natural rubber has good elasticity and high mechanical strength, and can be used alone or in combination with synthetic rubber and recycled rubber to produce rubber packing, optimize the quality of finished products, and reduce the cost of raw materials.
1. Natural rubber production rubber tape rubber packing basic reference formula
100 parts of natural rubber, 5 parts of zinc oxide, 2 parts of stearic acid, 1 part of antioxidant, 50 parts of high wear-resistant carbon black, 3 parts of aromatic oil, 1 part of accelerator, 2.5 parts of sulfur.
When using natural rubber as the main raw material to produce rubber packing, it can be adjusted according to the specific application needs and performance requirements on the basis of the above formulation. For example, when rubber packing requires high wear resistance or high temperature resistance, the proportion of carbon black can be appropriately increased or a more suitable carbon black type can be selected.
2. Natural rubber/neoprene/recycled rubber combined with the production of rubber tape, rubber packing and glue formula
70 parts of natural rubber, 30 parts of neoprene, 15 parts of recycled rubber, 5 parts of zinc oxide, 2 parts of stearic acid, 2 parts of magnesium oxide, 1 part of antioxidant A, 1 part of antioxidant D, 50 parts of carbon black N330, 105 parts of light calcium, 15 parts of graphite powder, 13 parts of coumaron resin, 13 parts of liquid coumaron resin, 5 parts of asphalt, 0.5 parts of accelerator DM, 0.35 parts of accelerator M, 0.05 parts of accelerator TMTD, 1.5 parts of sulfur; Total: 329.4 copies.
3. The advantages of natural rubber production rubber tape rubber packing mixed with reclaimed rubber
When natural rubber produces rubber packing with rubber plating, an appropriate amount of reclaimed rubber can not only reduce the cost of raw materials, but also improve the plasticity and fluidity of the rubber compound, reduce power consumption, reduce expansion and contraction, and improve the poor aging resistance of natural rubber E4LYY48 and reduce vulcanization return. When the natural rubber rubber plate is mixed with reclaimed rubber, the matching method of the reclaimed rubber is generally adopted by the recycled rubber compounding agent method of the effective glue content exchange algorithm, and the amount of sulfur and accelerator in the formula can be increased by about 20%.
In actual production, the rubber packing rubber with natural rubber as the main raw material can also be appropriately mixed with reclaimed rubber, and the follow-up editor will discuss related issues with you.
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