Graphene composite rubber for automobile air inlet hose and preparation method thereof

A graphene composite and graphene technology, applied in the field of composite rubber, can solve the problems of immature technology, poor heat resistance and oil resistance, unsatisfactory effect, etc., and achieve the effect of improving heat resistance, oil resistance and preventing further swelling

Inactive Publication Date: 2018-12-28
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] It can be seen that in the prior art, most of the automobile intake hose materials have poor heat resistance or oil resistance, and the technology of modifying fillers such as graphene is immature and the effect is not ideal. Therefore, i...

Method used

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  • Graphene composite rubber for automobile air inlet hose and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] a. Add terephthalic acid to ethylene glycol and stir in a water bath at 52°C to form an oil phase liquid;

[0033]b. Add graphene and polyethylene glycol octylphenyl ether into water, ultrasonically disperse for 2.5 hours, add to the oil phase liquid prepared in step a, continue stirring for 30 minutes, add catalyst, heat up to 60°C for reaction, filter, Washing, vacuum drying at 70°C for 24 hours, and further grinding to obtain graphene / polyethylene terephthalate powder microspheres;

[0034] c. Dilute the nitrile rubber to latex with a solid content of 50%, add the powder microspheres prepared in step b into the nitrile latex, stir evenly, use a dilute acid with a mass concentration of 5% for flocculation, and wash at 60°C Down blast drying, obtained graphene / butyronitrile co-precipitation glue;

[0035] d. Put the EPDM rubber into an open mill and plasticize it for 2 minutes, add stearic acid, graphene / nitrile co-precipitation glue, aromatic hydrocarbon oil, acceler...

Embodiment 2

[0039] a. Add terephthalic acid to ethylene glycol and stir in a water bath at 50°C to form an oil phase liquid;

[0040] b. Add graphene and polyethylene glycol octylphenyl ether into water, ultrasonically disperse for 2 hours, add to the oil phase liquid prepared in step a, continue to stir for 20 minutes, add catalyst, heat up to 55°C for reaction, filter and wash , dried in vacuum at 60°C for 26 hours, and further ground to obtain graphene / polyethylene terephthalate powder microspheres;

[0041] c. Dilute the nitrile rubber to latex with a solid content of 40%, add the powder microspheres prepared in step b into the nitrile latex, stir evenly, use a dilute acid with a mass concentration of 5% for flocculation, and wash at 60°C Down blast drying, obtained graphene / butyronitrile co-precipitation glue;

[0042] d. Put EPDM rubber into an open mill to plasticize for 3 minutes, add stearic acid, graphene / nitrile co-precipitation glue, aromatic hydrocarbon oil, accelerator, cro...

Embodiment 3

[0046] a. Add terephthalic acid to ethylene glycol and stir in a water bath at 55°C to form an oil phase liquid;

[0047] b. Add graphene and polyethylene glycol octylphenyl ether into water, ultrasonically disperse for 3 hours, add to the oil phase liquid prepared in step a, continue to stir for 40 minutes, add catalyst, heat up to 65°C for reaction, filter and wash , dried in vacuum at 80°C for 22 hours, and further ground to obtain graphene / polyethylene terephthalate powder microspheres;

[0048] c. Dilute the nitrile rubber into latex with a solid content of 60%, add the powder microspheres prepared in step b into the nitrile latex, stir evenly, use a dilute acid with a mass concentration of 5% for flocculation, and wash at 60°C Down blast drying, obtained graphene / butyronitrile co-precipitation glue;

[0049] d. Put the EPDM rubber into an open mill and plasticize it for 2 minutes, add stearic acid, graphene / nitrile co-precipitation glue, aromatic hydrocarbon oil, accele...

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Abstract

The invention discloses graphene composite rubber for an automobile air inlet hose and a preparation method thereof. The composite rubber is prepared by the following steps: a, adding terephthalic acid into ethylene glycol to form oil phase liquid; b, mixing graphene, polyethylene glycol octylphenyl ether with water, then adding the oil phase liquid, and drying the mixture and grinding the mixtureinto microspheres after a reaction; c, mixing the microspheres with nitrile rubber latex, and carrying out flocculation to obtain coprecipitation glue; and d, compounding the coprecipitation glue with ethylene propylene diene monomer rubber, stearic acid, aromatic oil, an accelerant and a cross-linking agent to obtain the high-temperature oil-resistant graphene composite rubber. The method has the benefits that: the composite rubber is modified by graphene/polyethylene terephthalate powder microspheres, and the prepared material has excellent high-temperature resistance and oil resistance, and can be widely applied to automobile air inlet hoses.

Description

technical field [0001] The invention relates to the field of composite rubber, in particular to the preparation of high-temperature-resistant and oil-resistant rubber, in particular to a graphene composite rubber used for automobile air intake hoses and a preparation method. Background technique [0002] As the domestic auto industry takes the lead, its auto parts field is also growing rapidly. The intake hose is an important part of the car, and auto manufacturers have higher and higher requirements for this part. At present, the material of automobile intake hose is mostly EPDM or nitrile PVC blend rubber. EPDM is called EPDM for short. It is a non-polar rubber. Fuel is not resistant, and can be severely swollen by this type of oil, which is also the biggest defect in the performance of EPDM rubber. [0003] Since the intake hose is connected to the engine connecting pipe, there must be incompletely burned oil and gas returning to the hose, so the intake hose is required ...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08L9/02C08L67/02C08L91/00C08K13/04C08K7/00C08K3/04C08K5/09
CPCC08L23/16C08L2201/08C08L2203/18C08L2205/035C08L9/02C08L67/02C08L91/00C08K13/04C08K7/00C08K3/042C08K5/09
Inventor 陈庆
Owner CHENDU NEW KELI CHEM SCI CO LTD
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