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Erosion-resistant fluorine rubber nanometer composite material with graphene and method for preparing erosion-resistant fluorine rubber nanometer composite material

A nano-composite material and graphene technology, which is applied in the field of erosion-resistant fluororubber nano-composite materials and its preparation, can solve problems affecting the comprehensive performance of composite materials, poor process stability, and poor graphene dispersion, and achieve enhanced crack resistance Expansion ability, excellent mechanical properties, and the effect of improving dispersion

Inactive Publication Date: 2018-03-13
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method is complicated to operate, and the process stability is not good
Chinese patent CN104558727 A discloses a preparation method of graphene oxide-epoxidized styrene-butadiene rubber compound. Graphene and rubber without pre-dispersion treatment are kneaded in the range of 50 ° C to 110 ° C by mechanical mixing method. Graphene is poorly dispersed
In this method, other solvents are introduced in multiple steps, which are difficult to completely remove, affect the comprehensive performance of composite materials, and the process is complicated and difficult to engineer.

Method used

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  • Erosion-resistant fluorine rubber nanometer composite material with graphene and method for preparing erosion-resistant fluorine rubber nanometer composite material

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Effect test

preparation example Construction

[0026] The nanocomposite material is prepared by a mechanical blending method, and its preparation method comprises the following steps:

[0027] (1) Graphene, carbon black and carbon fiber are put into the ball mill according to the ratio of mass and number of parts, and the ball milling medium is weighed according to a certain ball-to-material ratio (3:1). composition. Add a certain amount of absolute ethanol (subject to the submerged material), seal the lid and turn on the cooling cycle button, and set the temperature to 10°C. The revolution speed is 200-400r / min, the rotation speed is 500-800r / min, and the grinding time is 0.5-4h. Prepare ethanol solution of silane coupling agent with a concentration of 0.5%-5%, then fill the prepared ethanol solution of silane coupling agent into the ball mill, turn off the cooling circulating water and continue grinding for 0.5-2h, and then grind at no higher than 80 ℃ environment to obtain a graphene / carbon black / carbon fiber mixed po...

Embodiment 1

[0033] The anti-erosion fluororubber nanocomposite material containing graphene is composed of 100 parts by mass of fluororubber, 15 parts of graphene, 0.5 part of carbon black, 0.5 part of carbon fiber, 5 parts of magnesium oxide, vulcanizing agent Shuangfen 2 parts, 4 parts of TAIC, 1 part of silane coupling agent.

[0034] Put the graphene, carbon black and carbon fiber mixture into the ball mill, the revolution speed is 300r / min, the rotation speed is 500r / min, grind for 3h, prepare the silane coupling agent ethanol solution with a concentration of 1%, and then mix the prepared silane Add the ethanol solution of the coupling agent to the ball mill, turn off the cooling circulating water and continue grinding for 1 hour, and dry it for later use; then add the powder and fluororubber to the internal mixer within 10 minutes, and banbury at 60°C for 40 minutes.

[0035] Then the nanocomposite blend, vulcanizing agent and co-crosslinking agent were mixed evenly on a two-roller ...

Embodiment 2

[0037] The anti-erosion fluororubber nanocomposite material containing graphene is composed of 100 parts by mass of fluororubber, 0.5 parts of graphene, 20 parts of carbon black, 5 parts of carbon fiber, 3 parts of zinc oxide, vulcanizing agent Shuangfen 3.5 parts, 2 parts of TAIC, 0.5 parts of silane coupling agent.

[0038] Graphene, carbon black and carbon fiber mixture are put into ball mill, revolution speed is 800r / min, rotation speed is 250r / min, grind for 2.5h, the preparation concentration is the silane coupling agent ethanol solution of 0.5%, then the prepared Fill the ethanol solution of silane coupling agent into the ball mill, turn off the cooling circulating water and continue grinding for 2 hours, and dry it for later use; then add the powder and fluororubber into the internal mixer within 10 minutes, and banbury at 80°C for 30 minutes.

[0039] Then the nanocomposite blend, vulcanizing agent and co-crosslinking agent were mixed evenly on a two-roller rubber mix...

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Abstract

The invention belongs to the technical field of graphene / rubber nanometer composite materials, and relates to an erosion-resistant fluorine rubber nanometer composite material with graphene and a method for preparing the erosion-resistant fluorine rubber nanometer composite material. The erosion-resistant fluorine rubber nanometer composite material comprises, by weight, 100 parts of fluorine rubber, 0.1-15 parts of graphene, 0.5-20 parts of carbon black, 0.5-20 parts of carbon fibers, 3-7 parts of oxide or hydroxide acid acceptors, 2-5 parts of peroxide or bisphenol vulcanizing agents, 0.2-7parts of assistant cross-linking agents and 0.5-5 parts of silane coupling agents. The erosion-resistant fluorine rubber nanometer composite material and the method have the advantages that pre-dispersion treatment is carried out on the graphene by the aid of ball milling processes, accordingly, the dispersibility of the graphene in the fluorine rubber can be improved, the erosion resistance of the fluorine rubber can be effectively improved, erosion loss can be reduced by 62% as compared with fluorine rubber without graphene, the erosion loss further can be reduced by 43% as compared with fluorine rubber which is not subjected to pre-dispersion treatment and is directly additionally provided with graphene, and the erosion resistance can be obviously improved.

Description

technical field [0001] The invention belongs to the technical field of graphene / rubber nanocomposite materials, and relates to a graphene-containing anti-erosion fluorine rubber nanocomposite material and a preparation method. Background technique [0002] Erosion refers to a type of wear phenomenon in which the surface of a material is damaged when it is impacted by small, loose flowing particles. Anti-erosion materials are widely used in aviation, aerospace, ships, infrastructure and bioengineering and other fields. Resin-based composites have become the main force of erosion-resistant materials because of their high specific strength and specific stiffness, light weight, good wear resistance and corrosion resistance, but resin-based composites have always had large internal stress, brittleness, and corrosion resistance. Shortcomings such as poor impact resistance, it cannot withstand the erosion of sandstorms, crushed ice, salt mist, moisture and other particles, which s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/12C08K13/06C08K9/06C08K3/04C08K7/06C08K3/22
CPCC08K3/04C08K3/22C08K7/06C08K9/06C08K13/06C08K2003/222C08K2003/2296C08K2201/003C08K2201/011C08K2201/014C08L27/12
Inventor 王珊苏正涛蒋洪罡赖亮庆黄艳华
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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