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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, good corrosion resistance, and achieve large-scale production Applied effect

Inactive Publication Date: 2014-02-12
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 phr ZrO 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. The epoxy resin-organic bentonite-metal oxide composite material is formed by dispersing and compounding nano particles formed by mixing organic bentonite and ZnO-ZrO2 metal oxides in an epoxy resin matrix material; the preparation method of the composite material comprises the following steps of: uniformly dispersing nano particles of organic bentonite and ZnO-ZrO2 metal oxides into epoxy resin liquid by a mechanical mixing method; finally obtaining a novel epoxy resin-organic bentonite-ZnO-Zr2O2 metal oxide composite material by a series of stirring, adding and processing. In a preparation process, a leveling agent and a defoaming agent are not used, and therefore, preparation cost of the material is further lowered. An anti-corrosive coating material disclosed by the invention has good corrosion resistance and can be applied in marine engineering architectures and structural steel or a reinforcing steel bar in a relatively special industrial production condition; the preparation method of the composite material is simple in process, does not need a special device, and can realize large-scale production and application.

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 Applications(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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