A modified rubber masterbatch and its preparation method, an oil-extended solution polystyrene-butadiene rubber composition, its preparation method and its vulcanizate
A polystyrene-butadiene rubber and modified rubber technology, applied in the direction of rolling resistance optimization, road transportation emission reduction, etc., can solve the problem of no reports and other issues
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[0097] 1. Preparation of modified rubber masterbatch:
[0098] (1) Preparation of radiation crosslinked nitrile rubber latex:
[0099] In the nitrile rubber latex (nitrile-26) with a solid content of 45%wt, after adding the crosslinking aid trimethylolpropane triacrylate according to 3%wt of the solid content of the nitrile latex, carry out irradiation crosslinking , the radiation dose is 3.0Mrad, and the radiation crosslinked nitrile rubber latex is obtained. The average particle diameter of the radiation crosslinked nitrile rubber particles in the latex is 100nm, and the gel content is 91%.
[0100] (2) Latex mixing and coagulation:
[0101] Add the nitrile rubber latex after radiation crosslinking to the uncrosslinked emulsion polystyrene butadiene rubber latex SBR1502 according to a certain solid content ratio, wherein the solid content of the nitrile rubber latex after radiation crosslinking is the same as that of the uncrosslinked The weight ratio of solid content of p...
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