High-molecular nanoparticle agent and preparation method thereof

Abstract

The invention discloses a preparation method of a high-molecular nanoparticle agent. The high-molecular nanoparticle agent is prepared from the following raw materials: dihydroxyl functional group organic silicon modified acrylic resin, silane coupling agent modified nano silicon dioxide, absolute ethyl alcohol, water-soluble hydrogen-containing silicone oil, a dispersing agent, a flatting agent, a film-forming agent, a stabilizer, acetic acid, ammonia water and water. After the polymer nanoparticle agent is cured, the corrosion resistance, the stain resistance, the self-cleaning performance, the high conductivity and the coating performance of the metal surface can be enhanced.

Description

technical field [0001] The invention relates to the field of polymer coatings, in particular to a method for preparing polymer nanoparticle agents. [0002] technical background [0003] In recent years, with the continuous improvement of people's living standards, the popularity of electronic products such as computers, LCD TVs, smart phones, etc. is increasing, and people's requirements for their performance and appearance are also getting higher and higher. In the process of using electronic products, the problem of signal transmission is inseparable. Generally, metals are prone to rust and corrosion when exposed to the air, which affects the performance of the product. Early signal transmission equipment generally uses surface coating. Layer materials to achieve the effect of beauty and protection, but the coating material has a shielding effect on the signal, resulting in the attenuation of the signal during transmission and thus affecting the performance of the product....

AI Technical Summary

Problems solved by technology

This product uses cross-linking agents such as aziridine and polycarbodiamine. These cross-linking agents have good reactivity with the resin in the system and can improve the cross-linking strength of the coating. However, due to this type of cross-linking reaction It can be carried out at room temperature, which will eventually affect the storage stability of the product and is prone to gelation

[0008] The Chinese patent application number 201510507320.0 introduces a galvanized anti-fingerprint solution with a corrosion resistance of 120 hours, but the experimental results did not mention the problems of alkali resistance and blackening

In addition, this product contains highly toxic nitrites

[0009] The synthesis process reported in the literature and patents is generally complicated, high in cost, poor in conductivity and has a certain impact on the environment. In view of the above situation, the present invention provides a simple and feasible preparation method. Coupling agent modified nano-silica can overcome this disadvantage, through ethanol, water-soluble hydrogen-containing silicone oil cross-linking and emulsifiers (polyacrylic acid, sodium dodecylbenzene sulfonate, sulfate ester, carboxymethyl cellulose, etc. ), leveling agent (acrylic acid, fluorine leveling agent, etc.), film-forming aids (potassium fluorotitanate, malonic acid, copper sulfate, maleic acid dispersant), stabilizer (hydrogen peroxide, potassium pyrophosphate, Sodium metasilicate), the storage period can reach more than one year, and it can be used immediately after taking out, which is more convenient to operate and use

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