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Method for preparing trans-isoprene complexes and its products and use

A compound and rubber technology, applied in the field of synthesizing trans-1, can solve problems such as low price, and achieve the effects of high raw rubber strength and hardness, good appearance quality of rubber compound, wear resistance and low heat buildup.

Inactive Publication Date: 2008-02-13
TSINDAO TSJUJST FANTAJ MATIRIAL EHNDZHINIRING KO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult for the current rubber compound to fully meet the requirements of high-performance tires, shock-absorbing products for high-speed automobiles and trains, V-belts, conveyor belts and other rubber products for the balance between rolling resistance, traction performance, fatigue resistance and wear resistance, and High-performance tires, long-life requirements of train and automobile shock absorbing products, using traditional processing methods to prepare a rubber compound containing synthetic TPI, in order to overcome the lack of dynamic performance of existing rubber compounds, to achieve rolling resistance, traction performance The balance between the three major exercising properties and wear performance is suitable for making tire tread sidewalls, train and automobile shock absorbing products, V-belts, conveyor belts and other rubber products, and the price is low

Method used

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  • Method for preparing trans-isoprene complexes and its products and use
  • Method for preparing trans-isoprene complexes and its products and use
  • Method for preparing trans-isoprene complexes and its products and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1. A preparation method for synthesizing trans-1,4-polyisoprene rubber compound. It is made of synthetic trans-1,4-polyisoprene TPI with natural rubber NR, styrene-butadiene rubber SBR, polybutadiene rubber BR, cis-polyisoprene rubber IR, ethylene-propylene rubber EPR, nitrile-butadiene rubber The rubber NBR, neoprene CR general-purpose rubber or special rubber are made by binary, ternary, quaternary or multi-component blending and co-vulcanization. The used TPI is synthesized by the method of bulk precipitation polymerization of isoprene catalyzed by a supported titanium catalyst, and the content of trans-1,4 structure is ≥90%. The above-mentioned styrene-butadiene rubber includes emulsion polystyrene-butadiene rubber ESBR and solution-polymerization styrene-butadiene rubber SSBR, polybutadiene rubber BR includes high-cis polybutadiene rubber HCBR, low-cis polybutadiene rubber LCBR, medium vinyl polymer Butadiene rubber MVBR and high vinyl polybutadiene rubbe...

Embodiment 2

[0030] Example 2. A preparation method for synthesizing trans-1,4-polyisoprene rubber compound. It is prepared by an open rubber mixing machine. First, the temperature of the roller is raised to 60 ° C ~ 90 ° C, and it is put into TPI for melting and plasticizing. After the TPI is plasticized, other rubbers are added in sequence to mix evenly, and then add the small and medium-sized medicines in the formula. Additives, add reinforcing agents, fillers, processing aids, and finally add sulfur cross-linking agent for several times before unloading.

Embodiment 3

[0031] Example 3. A preparation method for synthesizing trans-1,4-polyisoprene rubber compound. It is prepared by an internal mixer, and the temperature is first controlled to be between 60°C and 90°C, and then it is prepared by a multi-stage banburying method of one-stage banburying preparation, two-stage banburying mixing, and three-stage banburying adding a cross-linking agent.

[0032] Embodiment 4 to embodiment 10 are a kind of rubber compound prepared according to the preparation method of claim 1.

[0033] Table 1 and Table 2 respectively show the formulations of Examples 4 to 10 and the basic properties of the obtained tire compounds. Wherein Examples 4 and 6 are formulations that usually do not contain TPI tread compounds, and Examples 5, 7, and 8 are TPI-containing tread compounds for comparison; 10 is the sidewall containing TPI for comparison.

[0034] Table 1, the basic formula of the tire material of the embodiment

[0035]

[0036] The varieties and dosag...

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Abstract

The present invention is a preparation method of the trans-isoamyl rubber complex, the product and the application. The trans-isoamyl rubber complex is made by doing the binary, ternary, quaternary or multi-blend and total vulcanization with the synthetic reversing formula 1, 4-polyisoprene and the general rubber such as the natural rubber, the styrene-butadiene rubber, the polybutadiene rubber, the cis-polyisoprene rubber, the ethylene propylene rubber, the nitrile rubber, the chloroprene rubber and so on, or with the special rubber. The TPI is used to load the titanium catalyst to catalyze the synthesis of the polyisoprene body through the methods of deposition and polymerization. The structural content of the formula-1, 4 is equal to or more than 90 percent. The present invention makes a rubber complex containing the TPI to overcome the insufficiency of the existing rubber complex in the dynamic performance and to reach the balance between the rolling resistance, the traction performance and the wear performance; the trans-isoamyl rubber complex of the present invention is suitable for the rubber products used in the tire surface and side, the shock absorber product for trains and vehicles, the V-belt, the conveyor belt and in other dynamic uses.

Description

technical field [0001] The invention belongs to the technical field of synthetic rubber and rubber processing, and more specifically relates to the improvement of synthetic trans-1,4-polyisoprene rubber (TPI) compound and its preparation method and application. Background technique [0002] With the rapid development of my country's national economy, cars and trains have entered the era of high-speed driving, and other mechanical equipment has also increased the speed of operation, which requires high-performance tires, train and automobile shock-absorbing rubber products, V-belts, Rubber products such as conveyor belts, and the materials used to prepare these rubber products must have excellent dynamic properties. For the evaluation of material dynamic properties, according to the long-term exploration and practice of scholars from various countries, an ideal model with low rolling resistance, high traction performance, high wear resistance, high fatigue resistance and envir...

Claims

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Application Information

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IPC IPC(8): C08L47/00C08J3/24B29C35/00C08L7/00C08L9/06C08L23/16
Inventor 黄宝琛赵志超姚薇杜爱华赵永仙
Owner TSINDAO TSJUJST FANTAJ MATIRIAL EHNDZHINIRING KO
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