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Preparation method of multidimensional hybrid composite of glass fibre/ grapheme- carbon nano tube/ epoxy resin

A technology of carbon nanotubes and glass fibers, which is applied in the field of nanomaterials, can solve problems such as easy agglomeration, high surface energy of carbon nanotubes, and difficulty in achieving uniform dispersion, so as to achieve firm interface bonding and improve interlayer shear strength. , The preparation method is simple and easy to implement

Inactive Publication Date: 2012-01-04
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Carbon nanotubes have high surface energy and are prone to agglomeration, making it difficult to achieve uniform dispersion in polymers

Method used

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  • Preparation method of multidimensional hybrid composite of glass fibre/ grapheme- carbon nano tube/ epoxy resin
  • Preparation method of multidimensional hybrid composite of glass fibre/ grapheme- carbon nano tube/ epoxy resin
  • Preparation method of multidimensional hybrid composite of glass fibre/ grapheme- carbon nano tube/ epoxy resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment l

[0034] Example 1: Graphene prepared by thermal reduction of graphite oxide, multi-walled carbon nanotubes (OD<8nm) prepared by arc discharge method and glass fiber are the initial raw materials, stirring and ultrasonic vibration in a solvent make carbon nanotubes and graphene Form a hybrid interspersed structure. After purification, the surface of the glass fiber is treated with silane coupling agent KH550, and the hybrid interspersed structure is acidified. After amination, the hybrid interspersed structure is acidified with pyromellitic dianhydride Chemical cross-linking reaction with liquid bisphenol A epoxy resin (E-51) to obtain a hybrid interpenetrating structure with liquid bisphenol A epoxy resin on the surface, and then treat the glass with silane coupling agent KH550 The fibers are composited in a certain way to obtain a multidimensional hybrid composite material containing glass fiber / graphene-carbon nanotube / epoxy resin.

[0035] Step (1): Disperse 0.5 grams of gra...

Embodiment 2

[0043] Example 2: Single-walled carbon nanotubes (OD<8nm) prepared by chemical vapor deposition were used as the initial raw material. After purification of graphene and single-walled carbon nanotubes, glass fibers were treated with silane coupling agent KH560, and graphite Graphene-single-wall carbon nanotube hybrid interpenetrating structure is acidified and aminated, and then anhydrided with benzophenone tetraacid dianhydride, and the graphene-single-wall carbon nanotube hybrid interpenetrating structure is mixed with liquid bisphenol A epoxy resin ( E-54) for chemical cross-linking reaction, the graphene-single-wall carbon nanotube hybrid interpenetrating structure with liquid bisphenol A epoxy resin (E-54) on the surface is obtained, and then mixed with silane coupling agent KH560 The surface-treated glass fibers are compounded in a certain way to obtain a multi-dimensional hybrid composite material containing glass fiber / graphene-single-walled carbon nanotubes / epoxy resin...

Embodiment 3

[0051] Example 3: Single-walled carbon nanotubes (OD， After the anhydride of -dianhydride diphenylmethane is anhydrided, the graphene-single-walled carbon nanotube hybrid interpenetrating structure is chemically cross-linked with liquid bisphenol A epoxy resin (E-44), and the surface is obtained. The graphene-single-walled carbon nanotube hybrid interpenetrating structure of phenol A-type epoxy resin (E-44) is compounded with glass fiber treated with silane coupling agent KH570 in a certain way to obtain a glass fiber / graphene-containing Single-walled carbon nanotube / epoxy resin multidimensional hybrid composites.

[0052] Step (1): Disperse 0.5 grams of graphene and 0.5 grams of single-walled carbon nanotubes in 500 grams of absolute ethanol, form a stable suspension after ultrasonication for 2 hours, and place them in a 250 mL single-necked round bottom flask equipped with a stirrer Add 1.1g graphene-single-walled carbon nanotube hybrid interpenetrating structure raw materia...

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Abstract

The invention relates to a preparation method of multidimensional hybrid composite of glass fibre / grapheme-carbon nano tube / epoxy resin. In the method, after grapheme-carbon nano tube network structure is subjected to surface carboxylation, diamine or polyamine is introduced on the grapheme-carbon nano tube network structure; the grapheme-carbon nano tube connected with the amino is modified by micromolecule aromatic polybasic anhydride compound to prepare the carbon nano tube carried with an anhydride group; the grapheme-carbon nano tube is dispersed in the epoxy resin matrix by ultrasonic oscillation and high-speed stirring; organic acid anhydride curing agent is adopted for curing; and the obtained epoxy resin polymer containing the grapheme-carbon nano tube serves as the matrix to be compounded with glass fiber processed by silane coupling agent to form a multifunctional hybrid composite structure connected by covalent bonds. The multidimensional hybrid composite is convenient to prepare, the application range of the glass fiber, the grapheme, the carbon nano tube and the epoxy resin is widened, so that the hybrid composite can be widely applied on the aspects of aerospace, traffic transportation, electronic industry, civil facilities, building, chemical engineering and the like, can be industrially produced on a large scale, has low cost and is friendly to environment.

Description

technical field [0001] The invention belongs to the technical field of nanometer materials, and in particular relates to a method for preparing a glass fiber / graphene-carbon nanotube / epoxy resin multidimensional hybrid composite material. Background technique [0002] Epoxy resin is a thermosetting oligomer with poor properties. In addition to being used as a stabilizer for polyvinyl chloride, it has no direct use value. But when it reacts with the curing agent to form a three-dimensional cross-linked network structure, it presents a series of excellent properties. Therefore, the chemical reaction between curing agent and epoxy resin is the basis and core of epoxy resin application. The behavior of the epoxy resin during the curing process and the performance of the cured product depend to a large extent on the performance of the curing agent and the interaction and reasonable coordination between it and the resin, which in turn depends on the molecular structure of the cu...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08K9/06C08K7/14C08G59/42
Inventor 邱军陈典兵
Owner TONGJI UNIV
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