Integrated rubber SIBR (Styrene Isoprene Butadiene Rubber) and preparation method thereof

A technology of integrating rubber and butadiene, applied in the field of integrated rubber SIBR and its preparation, can solve the problems of low cost performance of SIBR, and achieve the effect of improving physical properties and preventing vaporization

Active Publication Date: 2014-05-07
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are also patents describing the synthetic method of integrated rubber SIBR, this

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0032] The preparation method of integrated rubber SIBR of the present invention may further comprise the steps:

[0033] (1) Mix styrene, isoprene and butadiene according to the ratio, store the mixed liquid in a metal tank, pump it out from the metering pump, pass through three adsorption columns in turn, and finally enter the extruder; three of the adsorption columns The first two adsorption columns are filled with activated activated alumina, and the last adsorption column is filled with activated molecular sieves;

[0034] (2) Cyclohexane was refluxed for 22-24 hours in the presence of calcium oxide, and then distilled at atmospheric pressure, and the distilled cyclohexane was soaked in activated molecular sieve for 10-12 hours;

[0035] (3) Dilute n-butyl lithium to 0.1 mol / L-0.3 mol / L and store it in a closed metal tank filled with inert gas argon or nitrogen;

[0036] (4) Put the cyclohexane and n-butyllithium treated in (2) and (3) into the twin-screw extruder and mi...

Embodiment 1

[0040] (1) Mix 20 parts of styrene (St), 40 parts of isoprene (Ip) and 20 parts of butadiene (Bd). The mixed solution is pumped out by a metering pump and passes through three adsorption columns to remove water. After entering the extruder;

[0041] (2) Reflux 0.5 parts of cyclohexane in the presence of calcium oxide for 22 hours, then carry out atmospheric distillation, soak the distilled cyclohexane with activated molecular sieve for 12 hours;

[0042] (3) Dilute 0.5 parts of n-butyllithium to 0.1 mol / L and store in a closed metal tank filled with inert gas argon;

[0043] (4) Put the cyclohexane and n-butyllithium treated in (2) and (3) into the twin-screw extruder and mix with the mixture in (1), extrude and granulate to obtain particles; Zone 1 of the screw extruder is 100°C, Zone 2 is 110°C, Zone 3 is 120°C, Zone 4 is 120°C, Zone 5 is 140°C, Zone 6 is 160°C, Zone 7 is 160°C, Zone 8 is 180°C, Zone 9 is 200°C ℃;

[0044] (5) The integrated rubber SIBR product is obtaine...

Embodiment 2

[0046] (1) Mix 10 parts of styrene (St), 20 parts of isoprene (Ip) and 10 parts of butadiene (Bd), and the mixed solution is pumped out by a metering pump and then passed through three adsorption columns to remove water. After entering the extruder;

[0047] (2) Reflux 0.1 part of cyclohexane in the presence of calcium oxide for 24 hours, then carry out atmospheric distillation, soak the distilled cyclohexane with activated molecular sieve for 10 hours;

[0048] (3) Dilute 0.1 part of n-butyllithium to 0.3mol / L and store in a closed metal tank filled with inert gas nitrogen;

[0049] (4) Put the cyclohexane and n-butyllithium treated in (2) and (3) into the twin-screw extruder and mix with the mixture in (1), extrude and granulate to obtain particles; Zone 1 of the screw extruder is 100°C, Zone 2 is 120°C, Zone 3 is 120°C, Zone 4 is 120°C, Zone 5 is 130°C, Zone 6 is 160°C, Zone 7 is 170°C, Zone 8 is 180°C, Zone 9 is 190°C ℃;

[0050] (5) The particles in (3) are mixed to ob...

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PUM

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Abstract

The invention relates to an integrated rubber SIBR (Styrene Isoprene Butadiene Rubber) and a preparation method thereof. The integrated rubber SIBR is prepared from 10-30 parts by weight of styrene, 20-60 parts by weight of isoprene, 10-30 parts by weight of butadiene, 0.1-1 part by weight of cyclohexane and 0.1-1 part by weight of n-butyllithium. By adopting a method of once charging and reaction extruding, the content of entire alkadiene is increased to above 75 percent; and mechanical properties of tensile strength, bending strength, impact strength, tearing strength and the like of the prepared integrated rubber SIBR are superior to those of an existing product, and important research significance and application value are obtained.

Description

[0001] technical field [0002] The invention relates to the technical field of integrated rubber, in particular to an integrated rubber SIBR and a preparation method thereof. [0003] Background technique [0004] Tires are the main products of the rubber industry, and their rubber consumption generally accounts for 50-60% of the total rubber consumption; with the rapid development of the automobile industry, higher requirements are put forward for the wet skid resistance and wear resistance of tires. Require. Studies have shown that there is an obvious contradiction between the properties of general-purpose tread rubber. Rubber with low rolling resistance and good wear resistance has poor wet skid resistance, and vice versa. For this reason, in the 1990s, people proposed the integrated rubber SIBR, which can overcome the contradiction between the three major driving properties of rolling resistance, traction and wear resistance that cannot be overcome by the tread made o...

Claims

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Application Information

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IPC IPC(8): C08F236/10C08F4/48B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/875B29C48/92B29C2948/92704B29C2948/92895
Inventor 杨桂生刘凯
Owner HEFEI GENIUS NEW MATERIALS
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