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Method for instantaneously increasing rubber binder content and prepared rubber product

A technology of rubber products and binding rubber, applied in tire parts, transportation and packaging, special tires, etc., can solve problems such as failure to achieve application effects, and achieve the effect of improving performance, increasing binding rubber content, and avoiding pollution

Active Publication Date: 2016-02-17
EVE RUBBER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Through the bombardment of electron beams, some small molecular substances existing on the surface of carbon black are volatilized, resulting in defects and active adsorption sites, but the above patent is in a sealed environment, and these volatilized small molecular substances will reoccupy These active adsorption points cannot achieve the application effect of the technology

Method used

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  • Method for instantaneously increasing rubber binder content and prepared rubber product
  • Method for instantaneously increasing rubber binder content and prepared rubber product
  • Method for instantaneously increasing rubber binder content and prepared rubber product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] Embodiment 1: (no coupling agent)

[0080] Add 20 parts of butadiene rubber, 80 parts of styrene-butadiene rubber SBR1500, and 60 parts of N234 carbon black into the internal mixer for mixing. The mixing temperature is 150 ° C, the mixing time is 2 minutes, and the speed of the internal mixer is 70 rpm. Mix evenly and discharge the glue to make carbon black masterbatch. The carbon black masterbatch is subjected to off-line electronic irradiation operation, the electron accelerator irradiation voltage is 2MeV, the beam current intensity is 40mA, the electron beam scanning width is 1600mm, the irradiation absorbed dose is selected as 15kGy, the irradiation production line speed is 30m / min, and the irradiation environment It is an anaerobic environment, and it is cooled and parked for 8 hours after irradiation, and then the carbon black masterbatch after irradiation, 3 parts of zinc oxide, 2 parts of stearic acid, 1.5 parts of antioxidant RD, 2 parts of antioxidant 4020, 1...

Embodiment 2

[0088] Embodiment 2: (with coupling agent)

[0089] Add 20 parts of butadiene rubber, 80 parts of styrene-butadiene rubber SBR1500, 60 parts of N234 carbon black, and 3 parts of silane coupling agent into the internal mixer for mixing. The mixing temperature is 150 °C and the mixing time is 2 minutes. The speed of the mill is 70 rpm, the rubber is discharged after mixing evenly, and the carbon black masterbatch is made. The carbon black masterbatch is subjected to off-line electronic irradiation operation, the electron accelerator irradiation voltage is 2MeV, the beam current intensity is 40mA, the electron beam scanning width is 1600mm, the irradiation absorbed dose is selected as 20kGy, the irradiation production line speed is 25m / min, and the irradiation environment It is an anaerobic environment, and it is cooled and parked for 8 hours after irradiation, and then the carbon black masterbatch after irradiation, 3 parts of zinc oxide, 2 parts of stearic acid, 1.5 parts of an...

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Abstract

The invention relates to a method for instantly increasing the bonded rubber content of rubber and a prepared rubber product. The method comprises the following steps: mixing the rubber with carbon black to form carbon black master rubber, or mixing the rubber and the carbon black with a coupling agent to form the carbon black master rubber; carrying out electron-beam irradiation on the carbon black master rubber; then mixing the irradiated carbon black master rubber with a reinforcing filling agent, an anti-aging agent, a vulcanization system and oil to form mixed rubber, wherein the bonded rubber content of the mixed rubber is increased by at least 20%; and then vulcanizing to obtain the rubber product, wherein the bonded rubber is rubber which can not be extracted by a good rubber solvent in unvulcanized filling rubber.

Description

technical field [0001] The invention relates to the field of rubber, in particular to the field of rubber formula and processing. The invention relates to a preparation method of carbon black masterbatch which can instantly increase the content of rubber binder, and a high-performance rubber product prepared by the method. Background technique [0002] As we all know, silica can greatly improve the dispersion in rubber by using coupling agent, increase the content of rubber binding glue, and improve the performance of rubber products, but carbon black does not achieve the desired effect when using coupling agent The main reason is that the types of chemical functional groups on the surface of carbon black and silica are different, the reactivity of functional groups with a given coupling agent is different, and the concentration and distribution of chemical functional groups on the surface of fillers are different. As described in the table below: [0003] [0004] The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/00C08L9/06C08L9/00C08L23/16C08L9/02C08L11/00C08K3/04C08J3/28
CPCB60C1/0016C08J3/28C08J2309/06C08L9/06C08L2205/02C08L2205/03C08L9/00C08L91/00C08K13/02C08K3/04C08K2003/2296C08K5/09C08K3/06C08K5/54
Inventor 王玉海张琳刘震王梦蛟
Owner EVE RUBBER RES INST
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