Preparation method of flame retardation graphene coating layer material

A technology of flame-retardant coatings and flame-retardant coatings, applied in coatings, anti-corrosion coatings, fire-resistant coatings, etc., can solve problems such as unfavorable properties of polymer composite materials, reduce heat release rate, increase cross-linking density, and improve the preparation process The effect of environmental protection

Inactive Publication Date: 2017-03-15
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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Problems solved by technology

Due to the strong interaction between the sheets, graphene is easy to appear in the form of agglomeration, which is not conducive to the improvement of the performance of polymer composites.

Method used

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  • Preparation method of flame retardation graphene coating layer material

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Effect test

Embodiment 1

[0022] see figure 1 , Table 1, the present embodiment provides a preparation method and test data of a graphene flame-retardant coating material, and the graphene flame-retardant coating material, its principle is proportioned as follows in parts by weight: graphene epoxy resin integrated material 50 parts, W651100 parts, TH-904 2.5 parts, GPE20 2 parts, water 50 parts.

[0023] The preparation method of the water-based anti-corrosion and fire-proof integrated coating specifically includes.

[0024] (1) Add 0.6g graphite (325 mesh) and 1.0g NaNO under water bath condition 3 ; Pour 35ml concentrated H 2 SO 4 and at a speed of 350 rpm -1 Under the condition of mechanical stirring for 40min; then weigh 3g of KMnO 4 Slowly add it into the three-necked flask and continue stirring for 2 hours; then remove the ice bath and raise the temperature of the reaction system to 35°C, and continue stirring under this condition for 30 minutes on ice; then slowly add 150 ml of deionized wa...

Embodiment 2

[0030] The principle of the water-based anti-corrosion and fire-proof integrated coating is as follows in parts by weight: 80 parts of graphene epoxy resin integrated material, 100 parts of W651, 2.5 parts of TH-904, 2 parts of GPE20, and 50 parts of water.

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Abstract

The invention discloses a preparation method of a flame retardation graphene coating material, and relates to a preparation method of a coating. The method is characterized in that graphene oxide prepared through a Humeers hydrothermal technology is reduced by hydrazine hydrate, organosilane is used as a bridge to connect graphene with epoxy resin through chemical bonds, and a graphene and epoxy resin integrated coating material is synthesized through molecular design. The surface modifying organosilane avoids afresh stacking and aggregation of graphene flakes, so the heat stability and the tensile strength of the graphene and epoxy resin integrated coating material are substantially improved. The integrated functional material improves oxygen index of the tensile strength of the epoxy resin and reduces the heat release rate peak and the total heat release amount, because the integrated coating material can catalyze degradation of the epoxy resin to form a close and porous carbon layer covering the surface of polymer, prevent heat and mass exchange between a gas phase and a solid phase and delay further degradation of the internal material in order to reach the flame retardation purpose of the coating material.

Description

technical field [0001] The invention relates to a method for preparing a coating, in particular to a method for preparing a graphene flame-retardant coating material. Background technique [0002] Metal is a high-strength, high-performance material. In the face of increasingly severe environmental problems, it is a wise choice to develop steel structure buildings instead of brick masonry and concrete buildings, especially in high-rise buildings and long-span structures, where metal plays a unique and irreplaceable role. But there are also many shortcomings, such as instability, corrosion, and fire resistance. The instability and corrosion of steel structures can be slowly solved through technical means in architectural design, while the problem of non-resistance is the biggest major safety hazard that needs to be solved urgently in the practical application of steel structures. Therefore, coating fire protection measures for building steel structures need to be given prior...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/12C09D5/18C09D5/08
CPCC09D163/00C08K3/04C08K9/06C09D5/08C09D5/18C09D7/62
Inventor 王娜栾鸿赫亢萍
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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