Nano antimicrobial internal wall paint containing illite-montmorillonite clay and preparation method thereof

A technology of interior wall paint and smectite clay, which is applied in the field of nano-antibacterial interior wall paint and its preparation, can solve problems such as unstable product quality, pollution and damage, and loss of protective effect of the coating, and achieve excellent anti-fungal performance and good compatibility. Capacitive, anti-fungal properties for long-lasting effectiveness

Inactive Publication Date: 2015-12-02
SINO NANOTECH HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Water-based coatings use water as the dispersion medium, which is susceptible to microbial contamination and damage. During the production and storage of coatings, it is easy to cause unstable product quality, discoloration,

Method used

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  • Nano antimicrobial internal wall paint containing illite-montmorillonite clay and preparation method thereof
  • Nano antimicrobial internal wall paint containing illite-montmorillonite clay and preparation method thereof
  • Nano antimicrobial internal wall paint containing illite-montmorillonite clay and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Dry crushing: mechanically crushing the natural imonite clay mineral into imonite mixed layer clay ore fragments with a particle size of less than 5cm;

[0038] (2) Soaking: 450g of Imono mixed-layer clay ore fritters and 550g of water are mixed, then soaked for 12h to obtain Yimeng clay slurry;

[0039] (3) Ramping: use 0.1mol / L NaOH solution to adjust the pH value of the Iraqi / Mongolian clay slurry to 9, add 6.75g dispersant WF-211, and use a sand mill disperser to ram and disperse; wherein, dispersing The addition of agent WF-211 is 1.5wt% of the solid content in the slurry; the rotating speed of the sand mill disperser is 1000rpm, and the stirring time is 30min;

[0040] (4) Screening: the slurry after step (3) pounding and dispersing is passed through a 500 mesh sieve to obtain the slurry under the sieve;

[0041] (5) Iron removal: adopt high gradient magnetic separator to carry out iron removal to the slurry that step (4) obtains, and slurry circulates 3 time...

Embodiment 2

[0046] The difference between this embodiment and Example 1 is: the grinding time in step (7) is 24h, and the particle cumulative distribution figure of the slurry is as follows figure 1 As shown in the 24h curve in the middle, it can be seen that the particles less than 100nm account for about 55%, and the particle size reaches the nanoscale; in the step (8), get the water-based interior wall of the Yimeng clay nano-slurry of 75g and 425g pure acrylate copolymer emulsion system The latex paint is placed in a beaker and mixed to prepare a nano antibacterial interior wall paint containing 15 wt% of the Imon clay nano slurry.

Embodiment 3

[0048] The difference between this embodiment and Example 1 is: the grinding time in step (7) is 48h, and the particle cumulative distribution figure of the slurry is as follows figure 1 As shown in the 48h curve in the middle, it can be seen that the particles less than 100nm account for about 73%, and the particle size reaches the nanoscale; in step (8), get the water-based interior wall of the Yimeng clay nano slurry of 100g and 400g pure acrylate copolymer emulsion system The latex paint is placed in a beaker and mixed to prepare a nano-antibacterial interior wall paint containing 20 wt% of the Imon clay nano-slurry.

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Abstract

The invention discloses a nano antimicrobial internal wall paint containing illite-montmorillonite clay and a preparation method thereof, belonging to the field of phyllosilicate clay minerals. The nano antimicrobial internal wall paint is composed of an illite-montmorillonite clay nano slurry and a water-based internal wall latex paint, wherein the illite-montmorillonite clay nano slurry accounts for 10-20 wt% of the total nano antimicrobial internal wall paint. The preparation method comprises the following steps: (1) crushing natural illite-montmorillonite clay mineral, and adding water to obtain a slurry; (2) regulating the pH value of the slurry, and dispersing; (3) carrying out screening, iron removal and bleaching on the slurry; (4) grinding the bleached slurry by a high-energy density stirring grinder to obtain a nano slurry; and (5) mixing the nano slurry with the water-based internal wall latex paint, and sufficiently stirring uniformly to obtain the nano antimicrobial internal wall paint containing illite-montmorillonite clay. The nano antimicrobial internal wall paint has excellent anti-mildew and antimicrobial effects, and can obviously lower formaldehyde, methylbenzene, dimethylbenzene and other toxic harmful substances in the paint.

Description

technical field [0001] The present invention relates to a nano-antibacterial interior wall paint containing Emon clay and a preparation method thereof, in particular to a method of adding nano-Imon clay as an antibacterial agent to water-based interior wall latex paint to improve the antibacterial effect of the water-based interior wall latex paint , which belongs to the new application field of layered silicate clay minerals. Background technique [0002] Antibacterial coating refers to the addition of antibacterial agents to the coating to make the coating have antibacterial properties. Antibacterial coatings, when used at home, can effectively reduce the bacterial density of living rooms, furniture surfaces, and household appliances; when used in public places, they can reduce the bacterial concentration of public places such as bus handles and seats in waiting rooms, and reduce cross-infection and the possibility of contact infection; when used in food processing plants...

Claims

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Application Information

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IPC IPC(8): C09D131/04C09D125/14C09D133/04C09D5/14C09D5/02
Inventor 曾凡聪黄岩
Owner SINO NANOTECH HLDG
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