Formulation design of wear-resistant hose

06/07/2024
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1) the choice of rubber: general cis-butadiene rubber, natural rubber, styrene butadiene rubber and isoprene rubber can be selected. Which is better than single use.
If the smooth-butadiene rubber or styrene-butadiene rubber and use, although you can get good wear resistance, but the process performance is relatively poor, while the smooth-butadiene rubber (or styrene-butadiene rubber) and natural rubber and use, you can get a satisfactory combination of results.
Polyurethane rubber is also a kind of excellent abrasion resistance rubber, for the higher requirements of wear-resistant hose can be selected.
2) Vulcanisation system: generally can be used with sulfur, accelerator, if the ratio of male rubber and natural rubber is 70:30, the amount of sulfur to 1.2:1.4 is more appropriate, accelerator to thiazole class (accelerator M, DM) or secondary sulfonamide (accelerator CZ, NOBS) is more effective. Polyurethane rubber vulcanisation system can choose peroxide and diisocyanate with.
3) Reinforcing agent and filler: with fine particles of high structural wear-resistant furnace black effect is better, especially in the case of large amounts of cis-butadiene rubber, the use of fixed tensile stress and abrasion resistance can be improved, but also the effect of the press out of the effect is also better, the surface is smooth and the stability of the shape of the billet is also good.