Tread rubber composition with high wear resistance and preparation method thereof
A rubber composition, high wear resistance technology, applied in special tires, tire parts, transportation and packaging, etc., can solve the problems of unsatisfactory wear resistance, short service life, etc., achieve long service life, easy operation, Effect of improving tread wear performance
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[0039] The present invention also provides a method for preparing the tread rubber composition with high wear resistance described in any of the above preferred embodiments, comprising the following steps:
[0040] S1. Preparation of one-stage masterbatch: Add all base rubber, functional resin, active agent, accelerator and carbon black in a certain number of parts by weight into the closed rubber mixer according to the ratio of parts by weight. After mixing for 4-10 minutes at ℃, discharge the rubber to obtain a section of masterbatch, and park it for 8-10 hours;
[0041] S2. Preparation of the second-stage masterbatch: add the parked first-stage masterbatch, anti-aging agent and a certain amount of carbon black to the closed rubber mixer, and mix at 145°C-155°C for 3-4min Deglue, get the second stage masterbatch, and park for 8-10h;
[0042] S3. Preparation of three-stage masterbatch: add the parked two-stage masterbatch into a closed rubber mixer, mix at 140°C-150°C for 3-...
Embodiment 1
[0050] This embodiment provides a tread rubber composition with high wear resistance and a preparation method thereof, specifically:
[0051] Rubber composition formula:
[0052] In parts by weight, it includes: 70 parts of smoked sheet rubber, 30 parts of rare earth butadiene rubber, 52 parts of N134 carbon black, 4 parts of indirect method zinc oxide, 1 part of stearic acid, 4 parts of anti-aging agent, functional resin dicyclopentadiene 3 parts of alkenes, 1 part of ordinary sulfur, 0.7 parts of multifunctional crosslinking agent-1,6 bis(N,N-dibenzylthiocarbamoyl disulfide) hexane, and 1 part of sulfenamide accelerator TBBS.
[0053] Preparation:
[0054] (1) One-stage masterbatch preparation: according to the above-mentioned ratio of parts by weight, add all the base rubber, functional resin, active agent, accelerator and 40 parts by weight of carbon black into the closed rubber mixer, and heat the mixture at 155°C After 4 minutes of mixing at high speed, the rubber is d...
Embodiment 2
[0060] Rubber composition formula:
[0061] In parts by weight, it includes: 80 parts of smoked sheet rubber, 20 parts of rare earth butadiene rubber, 52 parts of N134 carbon black, 4 parts of indirect method zinc oxide, 1 part of stearic acid, 4 parts of anti-aging agent, functional resin dicyclopentadiene 3 parts of alkenes, 1 part of ordinary sulfur, 0.7 parts of multifunctional crosslinking agent-1,6 bis(N,N-dibenzylthiocarbamoyl disulfide) hexane, and 1 part of sulfenamide accelerator TBBS.
[0062] Preparation method: its preparation method is the same as in Example 1.
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