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Preparation method of epoxy resin nano-grade composite material

A technology of nanocomposite material and epoxy resin, which is applied in the field of epoxy resin nanocomposite material preparation, and can solve the problems such as the loss of polymer toughness

Inactive Publication Date: 2012-12-26
费金华
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Problems solved by technology

These three methods are bound to make the toughness of the polymer lose

Method used

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Embodiment Construction

[0007] The preparation method of epoxy resin nano-composite material is: add the surface-treated nanoparticles into acetone under stirring state, then use ultrasonic treatment for tens of minutes, mix the above solution and epoxy resin evenly under stirring state to remove the solvent, Raise the temperature to 130°C to react th, then disperse on a high-speed homogeneous disperser for 20 minutes, add an appropriate amount of curing agent and mix evenly after cooling, pour it into a preheated steel mold coated with a release agent after evacuation and degassing, and 13 0°C / 5 h+1 5 0°C / 5h After curing is complete, cool and demould.

[0008] The performance test method of nano-epoxy resin composite material is as follows: the glass transition temperature is measured by USATAM DSC2910, and the heating rate is 2 0 ℃ / min under N atmosphere; Type transmission electron microscope to observe the dispersion of nanoparticles (the sample is cut into lu m thick). Experts from the China...

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Abstract

The invention provides a preparation method of an epoxy resin nano-grade composite material. The method is characterized in comprising the steps that: nano-particles processed through a surface treatment are added into acetone while stirring; the mixture is subjected to an ultrasonic treatment for tens of minutes; the obtained solution is uniformly mixed with epoxy resin while stirring, and solvent is removed; the mixture is heated to 130 DEG C and is subjected to a reaction for th; The obtained material is dispersed for 20min in a high-speed homogenization dispersion machine; the obtained material is cooled, a proper amount of a curing agent is added into the material, and the mixture is uniformly mixed; vacuum pumping and degassing are carried out, and the material is poured into a steel mold which is applied with a demolding agent and which is already preheated; the material is completely cured for 5h under a temperature of 130 DEG C and 5h under a temperature of 150 DEG C; and the material is cooled and demolded.

Description

technical field [0001] The present invention relates to epoxy resin nanocomposite materials. Especially the preparation method of epoxy resin nanocomposite material. Background technique [0002] At present, the use of nano-TiO 2 、Al 2 0 3 , Si0 2 , layered clay organic montmorillonite, sepiolite and epoxy resin to prepare nanocomposites, the dispersion of nanoparticles in the epoxy resin matrix was studied by transmission electron microscopy, and the glass of different nano-epoxy resin composites was tested by differential thermal analysis The results show that nanoparticles dispersed in the matrix can increase the glass transition temperature of epoxy resin. According to experts from the China Epoxy Resin Industry Association, dispersing nanoparticles and clay particles in the epoxy resin matrix in a certain way can greatly increase the glass transition temperature of epoxy resin, up to 50°C. [0003] The heat resistance of polymers is one of the conditions that ...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08K9/00C08K3/34C08K7/10
Inventor 费金华
Owner 费金华
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