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Rubber composition where wet method mixed master batches are used together with filler or aster batches and preparation method

A rubber composition and wet mixing technology, applied in the rubber field, can solve the problems of poor wear resistance of vulcanized rubber and reduced filler/polymer interaction force, etc.

Inactive Publication Date: 2016-01-13
EVE RUBBER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the carbon black wet-process masterbatch and silica wet-process masterbatch in these two patents are all made of latex. Since there are many non-adhesive components in the latex component, it is easy to adsorb to the surface of the filler and reduce the filler / polymer interaction. Force, resulting in poor wear resistance of vulcanized rubber

Method used

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  • Rubber composition where wet method mixed master batches are used together with filler or aster batches and preparation method
  • Rubber composition where wet method mixed master batches are used together with filler or aster batches and preparation method
  • Rubber composition where wet method mixed master batches are used together with filler or aster batches and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] Embodiment 1 (silica masterbatch+duplex carbon black powder)

[0079] Add 50 parts of white carbon black 165MP and 5 parts of TESPT to 100 parts of isoamyl gum in n-hexane solution, mix them, inject them into the coagulator continuously for coagulation, and then get the white carbon black wet-process masterbatch after desolventization and drying. Add 50 parts of isoamyl gum, 25 parts of CSDPF2125, 1 part of TESPT, and 77.5 parts of white carbon black masterbatch into the internal mixer for mixing. 1.5 parts of zinc oxide, 1.5 parts of protective wax, 1.5 parts of anti-aging agent RD, 1.5 parts of anti-aging agent 4020 were mixed, and after degumming and parked for 4 hours, 1.5 parts of accelerator CZ and 1.5 parts of ordinary sulfur were added to the internal mixer, and mixed Discharge the rubber evenly, park it for 4 hours, and vulcanize it with a flat vulcanizer at 150°C to obtain the tread rubber example 1.

Embodiment 2

[0080] Embodiment 2 (white carbon black masterbatch+duplex carbon black dry process masterbatch)

[0081] In the internal mixer, add 100 parts of isoamyl rubber, 50 parts of CSDPF2125, and 2 parts of TESPT for mixing. The mixing temperature is above 140°C and kept for 2 minutes, and the glue is removed to obtain a dual-phase carbon black masterbatch. Add 50 parts of white carbon black 165MP and 5 parts of TESPT to 100 parts of isoamyl gum in n-hexane solution, mix them, inject them into the coagulator continuously for coagulation, and then get the white carbon black wet-process masterbatch after desolventization and drying. In the internal mixer, add 76 parts of dual-phase carbon black masterbatch, 77.5 parts of white carbon black masterbatch, 3 parts of stearic acid, 5 parts of zinc oxide, 1.5 parts of protective wax, 1.5 parts of anti-aging agent RD, 1.5 parts of anti-aging agent 4020 mixing, stop for 4 hours after degumming, add 1.5 parts of accelerator CZ, 1.5 parts of ord...

Embodiment 3

[0082] Embodiment 3 (silica masterbatch+carbon black)

[0083] Add 50 parts of white carbon black 165MP and 5 parts of TESPT into 100 parts of isopentyl n-hexane solution, mix them, and pour them into the coagulator continuously for coagulation, then desolventize and dry to obtain white carbon black wet-process masterbatch. Add 50 parts of isoprene gum, 25 parts of carbon black N234, 77.5 parts of white carbon black wet-process masterbatch, 2.5 parts of stearic acid, 4.5 parts of zinc oxide, 1.5 parts of protective wax, and 1.5 parts of anti-aging agent RD in the internal mixer , anti-aging agent 40202.0 parts, after mixing evenly, remove the glue, after parking for 4 hours, add 2.0 parts of accelerator CZ, 1.6 parts of ordinary sulfur, and 0.5 parts of accelerator DPG, mix evenly and then discharge glue, park for 4 hours before using A flat vulcanizer was vulcanized at 150°C to obtain tread rubber Example 3.

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Abstract

The invention discloses a rubber composition. The rubber composition comprises rubber, the first filler and the second filler. The first master batches are prepared from the first filler through wet method mixing. The second filler is added to the master batches in the form of powder or the second master batches. The rubber composition can be used for manufacturing tires, and can reduce rolling resistance of tires, improve the slip-resistant performance and improve the wear-resistant performance.

Description

technical field [0001] The invention relates to the field of rubber, in particular to a rubber composition comprising wet mixing masterbatch and filler or masterbatch and a preparation method thereof. Background technique [0002] Wet mixing is a technology that uniformly disperses fillers in rubber under liquid phase conditions to obtain filler / rubber masterbatch. Compared with traditional dry mixing, the vulcanized compound of wet masterbatch has the advantages of high filler dispersion and low hysteresis loss. The technology of preparing wet mixing master batch comprises latex filler co-precipitation method (CN102153792A, CN102516418A, CN102634083A) at present; The powder rubber technology (CN101182376A) of German Powder Rubber United Co., Ltd.; The emulsion / filler liquid phase continuous mixing of U.S. Cabot company Refining technology (CN1280534A); solution / filler liquid phase continuous mixing technology (CN103113597A) of Yiweiyi Rubber Research Institute Co., Ltd. A...

Claims

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Application Information

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IPC IPC(8): C08L9/00C08L7/00C08K13/02C08K3/04C08K3/36C08K3/22C08K5/09C08J3/22C08J3/215B29B7/74
CPCB29B7/183B29B7/7495Y02T10/86
Inventor 王梦蛟宋建军王正和富金贾维杰张红霞张秀彬谢明秀周宏斌刘震王宝金徐召来
Owner EVE RUBBER RES INST
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