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Epoxy resin-organic bentonite-metal oxide composite material and preparation method thereof

A technology of epoxy resin and composite materials, applied in epoxy resin coatings, anti-corrosion coatings, coatings, etc., can solve problems such as passive film damage, achieve mild preparation conditions, reduce costs, and have good repeatability

Inactive Publication Date: 2016-08-17
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, factors such as carbonation, the penetration of chloride ions and other ions will lead to the destruction of the protective passivation film on the surface.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] In this embodiment, an epoxy resin-organic bentonite-metal oxide composite material is formed by dispersing and compounding organic bentonite and metal oxide nanoparticles in an epoxy resin matrix material, specifically:

[0025] (1) The matrix material components include epoxy resin, curing agent and silane coupling agent, among which the epoxy resin material is bisphenol A type GCC135 epoxy resin, that is, ethylene glycol dioxide propylene ether, the appearance of epoxy resin It is a transparent liquid without mechanical impurities, the epoxy value is 0.6 eq / 100g, the viscosity is 1000 mPas, and the density is 1.17 g / cm 3 Wherein curing agent is modified isophorone-low viscosity liquid curing agent, the appearance of curing agent is colorless to light yellow liquid, amine value is 600mg KOH / g, viscosity is 80 mPas, epoxy resin and curing The agent is mixed in a ratio of 10:3 by weight; the alkane coupling agent is 3-aminopropyltriethoxysilane, namely KH550;

[0026] ...

Embodiment 2

[0044] This embodiment is basically the same as Embodiment 1, especially in that:

[0045] In this embodiment, the material ratio of the epoxy resin-organic bentonite-metal oxide composite material is as follows:

[0046] Epoxy resin, curing agent, 2.5 phr organobentonite, 1.25 phr ZnO nanoparticles and 1.25 phrZrO 2 nanoparticles.

[0047] The preparation method of the present embodiment epoxy resin-organic bentonite-metal oxide composite material comprises the following steps:

[0048] The first step: same as embodiment one;

[0049] Second step: same as embodiment one;

[0050] The third part: same as embodiment one;

[0051] The fourth part: same as embodiment one;

[0052] The fifth step: same as embodiment one;

[0053] Step 6: Add organic bentonite with a concentration of 2.5phr to the low-viscosity epoxy resin prepared in step 5, and stir until all the organic bentonite is immersed in the epoxy resin matrix material to form epoxy resin-organic bentonite Mixture;...

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Abstract

The invention discloses an epoxy resin-organic bentonite-metal oxide composite material, which consists of organic bentonite, ZnO-ZrO 2 Nanoparticles formed by mixing two metal oxides are dispersed and compounded in epoxy resin matrix materials. The preparation method is that organic bentonite and ZnO-ZrO2 nanoparticle materials are uniformly dispersed in epoxy resin liquid by mechanical mixing. After a series of stirring, adding and processing, a new type of epoxy resin-organic bentonite-ZnO-ZrO is finally obtained 2 metal oxide composites. No leveling agent and defoamer are used in the preparation process, thus further reducing the cost of material preparation. The anti-corrosion coating material of the present invention has good corrosion resistance, and can be used as structural steel or steel bars in marine engineering buildings and relatively special industrial production conditions. The preparation method is simple and does not require special equipment, and large-scale production and application can be realized.

Description

technical field [0001] The invention relates to an epoxy coating material and a preparation method thereof, in particular to a high-performance epoxy coating material based on nanomaterial doping modification and a preparation method thereof, which is applied in the technical field of composite materials. Background technique [0002] In the field of construction, reinforced concrete is an important material related to the safety and life of the entire project. The corrosion of steel bars is the main reason for the damage and early failure of reinforced concrete structures, especially in marine engineering buildings and special industrial production conditions. Therefore, protecting the key parts of the reinforced concrete structure is an important means to strengthen its structural safety. At present, in various existing concrete materials, the steel bars in the structure are often passivated due to alkaline pore water. However, in practical applications, factors such as ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D5/08C09D7/12
Inventor 钟庆东裴国平周琼宇
Owner SHANGHAI UNIV
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