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Method for preparing nanocomposite hybrid multi-dimension material

A composite material and nanocomposite technology, applied in the field of preparation of hybrid multi-scale composite materials, can solve the problems of single structure and function, low heat resistance, etc., and achieve the effect of broad application prospects

Inactive Publication Date: 2010-11-24
SHENYANG AEROSPACE UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a method for preparing a nanocomposite hybrid multi-scale composite material in order to solve the problems of existing resin systems such as low mechanical properties, low heat resistance and single structure and function.

Method used

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  • Method for preparing nanocomposite hybrid multi-dimension material
  • Method for preparing nanocomposite hybrid multi-dimension material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) Disperse the carbon nanotubes in the epoxy resin, ultrasonically disperse for 1h, the ultrasonic power is 100W, the ultrasonic frequency is 20kHz, and the amount of carbon nanotubes is 1% of the resin amount;

[0021] (2) Fill the nano-composite resin matrix into the mold with the upper wall plate made of ceramics under the combined action of vacuum and 0.2MPa external pressure. The interior of the mold has been pre-filled with carbon fiber fabric reinforcements. The filling process is carried out in an ultrasonic field. The power of the ultrasound is 260W and the frequency is 40kHz.

[0022] (3) Put the filled mold into an oven for curing, and obtain a hybrid multi-scale composite material after demoulding.

Embodiment 2

[0024] The differences between this embodiment and Embodiment 1 are: the dosage of carbon nanotubes is 0.5% of the resin dosage, the ultrasonic dispersion is 2 hours, the power is 80W, and the ultrasonic frequency is 30kHz.

Embodiment 3

[0026] The difference between this example and Example 1 is that the resin used is unsaturated polyester, the ultrasonic dispersion is 2 hours, the power is 40W, and the ultrasonic frequency is 45kHz.

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Abstract

The invention discloses a method for preparing a nanocomposite hybrid multi-dimension material, which belongs to the technical field of the low-cost manufacturing of resin-based composite materials. The method comprises the following steps of: adding a nanometer material into resin to prepare a nanocomposite resin substrate; and preparing the hybrid multi-dimension composite material by adopting a liquid molding process, wherein the dispersion of the nanometer material in the resin and the subsequent molding process are both performed in an ultrasonic field. As the nanometer material has an extremely large specific surface area and an extremely high length-diameter ratio, the threshold of the percolation of the nanometer material in the composite material is relatively lower, and the addition of 0.1 to 1.5 percent of the nanometer material is insufficient to influence the liquid molding process of the composite material, which does not influence the tensile property mainly determined by reinforcing fibers at the same time of greatly improving the mechanical property, conductivity and glass-transition temperature, mainly determined by the substrate, in the composite material.

Description

technical field [0001] The invention belongs to the production field of polymer-based composite materials, and in particular relates to a preparation method of a nano-composite hybrid multi-scale composite material. Background technique [0002] Composite properties depend largely on the structure and properties of the resin matrix and its interfacial bonding with reinforcements. Nanoparticles have unique quantum size effect, surface effect and macroscopic tunnel effect, as well as excellent mechanical properties. In particular, the prepared composite material exhibits unique physical and chemical properties, which are much better than conventional polymer-based composite materials with the same components. Therefore, it has attracted more and more attention and has become a research hotspot in the field of materials science. Among them, carbon nanotube / polymer composites are a new class of structural and functional materials. Carbon nanotubes have excellent electrical con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/06C08L67/00C08L63/00C08L61/06C08L79/04C08L79/08C08L77/10C08K7/00C08K3/04C08K3/36C08K9/04C08K7/14C08K7/06B29C70/44
Inventor 王柏臣周霞马克明卢少微李伟于祺陈平
Owner SHENYANG AEROSPACE UNIVERSITY
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