Slow-release nano-silicon negative ion paint, preparation method and application thereof

The surface-modified powder prepared by the five-step process forms a mineral-carbon-silica ternary covalent interlocking structure, which solves the problem of easy peeling of the structure of negative ion coatings under high shear, realizes long-term sustained release and efficient excitation of negative ions, and improves the physical properties and functional stability of the coating.

CN122234700APending Publication Date: 2026-06-19BAOJI TIEJUN CHEM ENG ANTI CORROSION INSTALLATION
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BAOJI TIEJUN CHEM ENG ANTI CORROSION INSTALLATION
Filing Date
2026-05-25
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing commercial negative ion coatings are prone to core-shell structure peeling under medium-to-high shear fields, resulting in a severe attenuation of negative ion release and making it impossible to achieve long-term, stable release.

Method used

A five-step process was used to prepare surface-modified powder, forming a mineral-carbon-silica ternary covalent interlocking structure. A high-density PDA-Cu coordination anchoring layer was formed on the tourmaline surface by dopamine hydrochloride and soluble copper salt. Combined with hydrophobic silane coupling agent modification, a stable core-shell structure was constructed, and the mesoporous channels and electron transport characteristics were optimized.

Benefits of technology

It achieves long-term, uniform, and slow-release of negative ions in coatings, improves the efficiency of negative oxygen ion activation, and combines high adhesion and washability, solving the problem of easy peeling of traditional coatings under high shear.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure SMS_1
    Figure SMS_1
  • Figure SMS_2
    Figure SMS_2
Patent Text Reader

Abstract

This application relates to the field of coating technology, specifically disclosing a slow-release nano-silicon negative ion coating, its preparation method, and its application. The slow-release nano-silicon negative ion coating comprises the following raw materials: deionized water, hydroxyethyl cellulose, defoamer, sodium polycarboxylate dispersant, polyether-modified siloxane wetting agent, rutile titanium dioxide, calcined kaolin, heavy calcium carbonate, precipitated barium sulfate, surface-modified powder, waterborne polyurethane emulsion, dodecyl alcohol ester, ethylene glycol, preservative, mildew-proof, and bactericidal agent, and polyurethane associative thickener. The surface-modified powder in this application is prepared through a five-step process, forming a mineral-carbon-silica ternary covalently interlocked structure. This solves the problem of high shear and easy peeling of traditional core-shell structures, and combines mesoporous channels with efficient electron transport characteristics, achieving a dual breakthrough in coating physical properties, long-term slow release of negative ions, and efficient activation.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Fireproof stain-resistant nano silicon anion coating and preparation method thereof

    CN118580735A