Graphene oxide-epoxidized styrene butadiene rubber compound, preparation method thereof and vulcanized rubber

A technology of rubber compound and epoxidized butyl, which is applied in the local field, can solve problems such as affecting rubber properties and complex process, and achieve the effect of good tensile strength at break and improved mechanical properties.

Active Publication Date: 2015-04-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the additional reagents not only complicate the process but also remain in the rubber, which will affect the performance of the obtained rubber.

Method used

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  • Graphene oxide-epoxidized styrene butadiene rubber compound, preparation method thereof and vulcanized rubber
  • Graphene oxide-epoxidized styrene butadiene rubber compound, preparation method thereof and vulcanized rubber
  • Graphene oxide-epoxidized styrene butadiene rubber compound, preparation method thereof and vulcanized rubber

Examples

Experimental program
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preparation example Construction

[0029] The present invention also provides a kind of preparation method of graphene oxide-epoxidized styrene butadiene rubber composite, the method comprises:

[0030] Kneading a mixture containing graphene oxide and epoxidized styrene-butadiene rubber; the kneading temperature is above 50°C to less than 110°C; in the mixture, relative to 100 parts by weight of the epoxidized styrene-butadiene rubber , the content of the graphene oxide is 0.1-15 parts by weight; the epoxidized styrene-butadiene rubber is obtained by epoxidizing styrene-butadiene rubber, the number-average molecular weight of the styrene-butadiene rubber is 100000-400000, and the molecular weight distribution The index is 1-3; based on the total weight of the styrene-butadiene rubber, the content of structural units formed by styrene is 15-40% by weight, and the content of structural units formed by butadiene is 60-85% by weight ; Based on the total weight of the structural units formed by butadiene in the styr...

preparation example 1

[0054] This preparation example is used to illustrate the preparation of solution-polymerized styrene-butadiene rubber and epoxidized styrene-butadiene rubber.

[0055] Replace the 5L polymerization reactor with high-purity nitrogen for 3 times, and add 2300 grams of cyclohexane and n-hexane mixed solvent into the reactor under the protection of high-purity nitrogen (the weight ratio of cyclohexane to n-hexane is 80:20) , 328 grams of butadiene, 110 grams of styrene, and 1.0 mL of tetrahydrofurfuryl alcohol ethyl ether as a structural regulator. The reaction kettle was heated to 50°C, and 15 mL of n-butyllithium (diluted to a concentration of 0.23M with a mixed solvent of cyclohexane and n-hexane) was added to initiate the polymerization reaction. After 30 minutes of polymerization reaction, 0.5 mL of terminator isopropanol was added, and after 5 minutes of reaction, 0.4% by weight of the total amount of butadiene and styrene was added as an anti-aging agent (purchased from Be...

preparation example 2

[0059] This preparation example is used to illustrate the preparation of solution-polymerized styrene-butadiene rubber and epoxidized styrene-butadiene rubber.

[0060] According to the method of Preparation Example 1, the difference is that "structure regulator tetrahydrofurfuryl alcohol ethyl ether 0.5mL" is used instead of "structure regulator tetrahydrofurfuryl alcohol ethyl ether 1.0mL". Polymerize to obtain styrene-butadiene rubber R2.

[0061] The structural parameters of the obtained styrene-butadiene rubber R2 were measured, and the results are shown in Table 1.

[0062] Styrene butadiene rubber R2 is epoxidized to obtain epoxidized styrene butadiene rubber ER2. The degree of epoxidation of ER2 was calculated to be 11.2%.

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Abstract

The invention discloses a graphene oxide-epoxidized styrene butadiene rubber compound, a preparation method thereof and vulcanized rubber. The compound comprises graphene oxide and epoxidized styrene butadiene rubber, wherein graphene oxide accounts for 0.1-15 parts by weight in 100 parts by weight of epoxidized styrene butadiene rubber; when 2<theta> in an XRD (x ray diffraction) spectrum of the compound ranges from 2 degrees to 12 degrees, a diffraction peak of graphene oxide does not appear; a characteristic peak of ester appears near 1,750 cm <-1> and 1,240 cm <-1> in an infrared spectrum of the compound; and a characteristic peak of ether linkage appears near 1,150 cm <-1> in the infrared spectrum of the compound. In the compound, graphene oxide and epoxidized styrene butadiene rubber form chemical bond combination, so that the tensile break strength can be higher, and further obtained vulcanized rubber has better mechanical property.

Description

technical field [0001] The invention relates to a graphene oxide-epoxidized styrene-butadiene rubber compound and its preparation and vulcanized rubber, in particular to a graphene oxide-epoxidized styrene-butadiene rubber compound, a graphene oxide-epoxidized butadiene-butadiene rubber compound A preparation method of a styrene-rubber compound and a graphene oxide-epoxidized styrene-butadiene rubber compound obtained by the method, a vulcanized rubber made from a graphene oxide-epoxidized styrene-butadiene rubber compound. Background technique [0002] Styrene-butadiene rubber is one of the most produced general-purpose synthetic rubbers and can be used in many fields. In order to adapt to applications in different fields, different properties of styrene-butadiene rubber are required. In order to meet these performance requirements, different methods are required to treat or modify styrene-butadiene rubber so that they can have properties suitable for different use require...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L15/00C08K9/00C08K3/04C08K13/06
Inventor 曲亮靓毕海鹏邵明波王丽丽赵青松李静李绍宁刘苹乔勋昌刘翠云
Owner CHINA PETROLEUM & CHEM CORP
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