A sea-island structure rubber roller and its preparation method
A sea-island structure and rubber roller technology, which is applied in the field of sea-island structure rubber rollers and its preparation, can solve the problems of insignificant friction coefficient effect, uneven force on materials, non-wear resistance, etc. Wear resistance, effect of improving wear resistance
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Embodiment 1
[0049] The invention relates to a sea-island structure rubber roller. The rubber layer of the sea-island structure rubber roller is prepared by kneading a matrix compound rubber and individual granule rubber. The master compound rubber and the individual granule rubber use nitrile rubber as the raw material, and the master compound rubber is obtained through mixing, and the individual granule rubber is obtained through mixing, vulcanization, crushing and sieving. Heat the matrix rubber mixture and cover the rolls; add the individual granules in batches, and wait until the individual granules are completely integrated into the matrix rubber to obtain the rubber layer of the sea-island structure rubber roller.
[0050] In the processing process of this embodiment, it is ensured that the elongation of the matrix compound is 220% higher than that of the individual granules, and the Shore A hardness of the matrix compound is 14 degrees lower than that of the individual granules. Th...
Embodiment 2
[0053] Master compound rubber component raw material table in the embodiment 2-4 of table 1
[0054] Raw materials for master mix components Example 2 Example 3 Example 4 Example 5 Nitrile rubber 33.75kg 37.50kg 41.25kg 37.50kg High wear-resistant carbon black 22.50kg 18.75kg 20.18kg 18.83kg General purpose carbon black 13.73kg 7.50kg 7.5kg 11.25kg liquid nitrile 1.88kg 3.38kg 1.88kg 2.25kg plasticizer 0.75kg 2.25kg 0.75kg 1.5kg Antiaging agent 0.68kg 1.35kg 0.90kg 0.75kg Accelerator 0.15kg 0.38kg 0.23kg 0.30kg crosslinking agent 0.75kg 2.25kg 1.13kg 1.50kg stearic acid 0.23kg 0.45kg 0.30kg 0.38kg Zinc oxide 0.60kg 1.20kg 0.90kg 0.75kg
[0055] Individual granule glue component raw material table in the embodiment 2-4 of table 2
[0056] Raw materials for individual granule gum components Example 2 Example 3 Examp...
Embodiment 3
[0068] A sea-island structure rubber roller. The rubber layer of the sea-island structure rubber roller is prepared by mixing a matrix rubber mix and individual granule rubber. The component weights of the matrix rubber mix and individual granule rubber are shown in Table 1 and Table 2. In the antioxidant, the ratio of MB to ZMMBI is 2:1; in the crosslinking agent, the ratio of dicumyl peroxide and sulfur is 3:1.
[0069] The preparation method of the sea-island structure rubber roller of embodiment 3, concrete preparation process is as follows:
[0070] (1) Mixing: Weigh the component raw materials of the matrix rubber compound and the component raw materials of the individual granule rubber respectively, and mix to prepare the matrix rubber compound and the individual rubber compound respectively, and park;
[0071] (2) Vulcanization: vulcanize the individual compounded rubber to obtain individual vulcanized rubber sheets;
[0072] (3) Pulverization: the individual vulcaniz...
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Abstract
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