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Functionalized graphene oxide supported rubber anti-aging agent and preparation method and application thereof

A rubber antioxidant and graphene technology, which is applied in the field of functionalized graphene oxide supported rubber antioxidants and their preparation, can solve the problem of less application of graphene oxide supported rubber additives, low antiaging effect, complex synthesis process, etc. problems, to achieve the effects of energy saving and environmental protection reaction temperature, reducing agglomeration phenomenon, and large specific surface area

Inactive Publication Date: 2018-12-18
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used rubber anti-aging agents in the industry have problems such as low anti-aging effect, pollution to the environment, and complicated synthesis process.
Liquid-phase supported rubber antioxidants have been successfully prepared and applied (Jia Zhixin et al. ZL201310292284.1), and graphene oxide-supported rubber additives are rarely used

Method used

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  • Functionalized graphene oxide supported rubber anti-aging agent and preparation method and application thereof
  • Functionalized graphene oxide supported rubber anti-aging agent and preparation method and application thereof
  • Functionalized graphene oxide supported rubber anti-aging agent and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (1) Mix silane coupling agent KH560, graphene oxide and water in a 500ml three-necked flask at a mass ratio of 1.5 (1.5g): 2:80, and stir and react at 120°C for 6h;

[0041] (2) Cool the intermediate product obtained in step (1) to 60°C, then add 1g of phenolic anti-aging agent 264 and dibutyltin dilaurate with a graphene oxide content of 5%, and stir and react at 60°C for 8h.

[0042] (3) The reaction product obtained in step (2) was centrifuged at 60° C. for 10 h in vacuum to obtain a functionalized graphene oxide-supported rubber antioxidant (f-GO-264).

[0043] The thermal weight loss curve of the functionalized graphene oxide-loaded rubber antioxidant (f-GO-264) prepared in this embodiment is as follows figure 1 shown. Depend on figure 1 It can be seen that the weight loss rate of the graphene oxide-supported rubber antioxidant modified by the coupling agent is relatively large, which is caused by the decomposition of the small molecule antioxidant and the coupli...

Embodiment 2

[0052] (1) Mix silane coupling agent KH560, graphene oxide and water in a 500ml three-necked flask at a mass ratio of 1.5 (1.5g): 2:80, and stir and react at 120°C for 6h;

[0053] (2) Centrifuge the reaction product obtained in step (1) and dry it under vacuum at 60° C. for 10 h.

[0054] The functionalized graphene oxide (f-GO) prepared in this example was used to prepare a styrene-butadiene rubber composite material (SBR / f-GO / 264). The basic formula is shown in Table 2, and the unit of the dosage of each component is phr. According to the basic formula of rubber, according to the order of adding activator (ZnO+St), filler (f-GO), anti-aging agent (264), accelerator (CZ+DM), sulfur (S), knead in an open mixer , to obtain SBR rubber composites and SBR / f-GO / 264 rubber composites, respectively.

[0055] Table 2

[0056]

[0057] Figure 4 It is the change of the tensile strength retention rate of the rubber composite material after mixing at a temperature of 160 ° C, and ...

Embodiment 3

[0060] (1) Preparation of styrene-butadiene rubber composite material (SBR / GO / 264), its basic formula is shown in Table 3, and the unit of the dosage of each component is phr. According to the basic formula of rubber, according to the order of adding activator (ZnO+St), filler (GO), anti-aging agent (264), accelerator (CZ+DM), sulfur (S), kneading in the open mill, respectively Obtain SBR rubber compound material, SBR / GO / 264 rubber compound material.

[0061] table 3

[0062]

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Abstract

The invention discloses a functionalized graphene oxide supported rubber anti-aging agent and a preparation method and an application thereof, which belong to the fields of a rubber auxiliary agent and anti-aging. The method firstly mixes a silane coupling agent, graphene oxide and water, and stirs the materials for a reaction at 100 to 140 DEG C for 4 to 8 hours; and then a phenolic antioxidant is added, and then is stirred for the reaction at 50 to 70 DEG C for 6 to 10 hours; and finally, a product is centrifuged and vacuum dried to obtain the functionalized graphene oxide supported rubber anti-aging agent. The functionalized graphene oxide supported rubber anti-aging agent can obviously increase the aged protection effect of the anti-aging agent on rubber, and has a function of a strengthening agent. The method saves the raw materials, and can also reduce the volatilization migration of the small molecule anti-aging agent and improve the combination of a matrix and an interface. Thepreparation process is environmentally friendly, efficient, energy-saving, and has high product recovery rate. The graphene oxide supported rubber anti-aging agent is the truly environmentally friendly novel rubber additive, and has broad application prospects in a rubber industry.

Description

technical field [0001] The invention belongs to the field of synthesis and anti-aging of rubber additives, and in particular relates to a functionalized graphene oxide-loaded rubber anti-aging agent and its preparation method and application. Background technique [0002] Anti-aging agent, a compounding agent that can prevent or inhibit factors such as oxygen, heat, light, ozone, mechanical stress, heavy metal ions and other factors from destroying product performance, prolonging product storage and service life, is one of the main varieties of rubber additives. At present, the commonly used rubber anti-aging agents in the industry have problems such as low anti-aging effect, pollution to the environment, and complicated synthesis process. Liquid-phase supported rubber antioxidants have been successfully prepared and applied (Jia Zhixin et al. ZL201310292284.1), and graphene oxide-supported rubber additives are rarely used. Compared with silica-supported rubber additives, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/12C08K5/13C08K9/06C08K3/04C08L9/06
CPCC08K3/042C08K5/13C08K9/06C08K9/12C08L9/06
Inventor 贾志欣李群洋陈勇军贾德民
Owner SOUTH CHINA UNIV OF TECH
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