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Nano-filler for coating, and preparation method and application thereof

A nano-filler and coating technology, applied in the field of coatings, can solve the problems that coatings cannot meet the needs of use

Inactive Publication Date: 2018-07-20
ANHUI EMINENT BUILDING MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In use, coatings with only a single performance are often unable to meet the needs of use
When it is used to paint objects with cracks and heat insulation, the coating needs to have both waterproof and heat insulation characteristics. At this time, ordinary single heat insulation coatings or waterproof coatings cannot meet the above requirements.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0011] The invention provides a preparation method of nano-fillers for coatings. The preparation method comprises: mixing mica powder, titanium dioxide powder, spinel powder, diatomaceous earth, ceramic fibers and calcium silicate, calcining, grinding and sieving to prepare The coating uses nano fillers.

[0012] In the above preparation method, the specific amount of each raw material in step 1) can be controlled within a wide range, but in order to improve the anti-aging performance of the enhanced filler prepared, preferably, mica powder, titanium dioxide, spinel powder, The weight ratio of diatomite, ceramic fiber and calcium silicate is 1:1.1-1.5:0.5-2.5:3-8:0.5-2.1:2-4.

[0013] In the above-mentioned technical scheme, the conditions of the calcination can be controlled under wide conditions, but in order to further improve the efficiency of calcination and the thermal insulation performance of the prepared nano-filler, preferably, the calcination at least satisfies the ...

preparation example 1

[0030] Mix mica powder, titanium dioxide, spinel powder, diatomaceous earth, ceramic fiber and calcium silicate according to the weight ratio of 1:1.1:0.5:3:0.5:2. The temperature was raised to 650°C at a rate of 10°C, and calcined for 2 hours; then, the temperature was raised to 850°C at a rate of 10°C / min, and calcined for 1 hour; finally, the rate was lowered to 100°C at a rate of 10°C / min and then directly cooled with water; finally, it was obtained by grinding and sieving Nano filler with a particle size of 200nm; denoted as W1.

preparation example 2

[0032] Mix mica powder, titanium dioxide, spinel powder, diatomaceous earth, ceramic fiber and calcium silicate according to the weight ratio of 1:1.3:1.5:5:1.5:3. The temperature was raised to 700°C at a rate of 1 hour, and calcined for 1 hour; then, the temperature was raised to 900°C at a rate of 15°C / min, and calcined for 2 hours; finally, the rate was lowered to 150°C at a rate of 15°C / min and then directly cooled with water; finally, it was obtained by grinding and sieving Nano filler with a particle size of 400nm; denoted as W2.

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Abstract

The invention discloses a nano-filler for a coating, and a preparation method thereof. The preparation method comprises the following steps: 1) stirring, mixing, grinding and sieving mica powder, titanium dioxide, spinel powder, diatomite, ceramic fibers and calcium silicate to prepare a nano-filler; 2) stirring and mixing a styrene-acrylic emulsion, waterborne epoxy resin and an antifoaming agentto obtain a film-forming emulsion M1; and 3) adding an anti-aging agent, a film-forming additive, a wetting agent, a leveling agent and the nano-filler to the film-forming emulsion M1, and performingstirring to prepare the nano-filler for the coating. The coating prepared by the preparation method has excellent waterproof and heat-insulating effects and excellent aging resistance, is an environmentally-friendly and durable coating, and is suitable for being promoted and used.

Description

technical field [0001] The invention relates to the field of coatings, in particular to nano fillers for coatings, a preparation method and applications thereof. Background technique [0002] Coatings can be coated on the surface of the object to be protected or decorated by different construction techniques, and can form a continuous solid film with strong adhesion, certain strength, and the object to be coated. Based on the function of coatings, coatings can be divided into many different types, the most common are thermal insulation coatings and waterproof coatings. The thermal insulation coating can reflect the solar infrared and ultraviolet rays with a wavelength in the range of 400nm-2500nm, so as to avoid the accumulation of heat from the sun on the surface of the object and play a role in heat insulation. At the same time, it can automatically radiate heat to achieve the purpose of heat dissipation. Reduce the temperature of the object, even in cloudy days and at ni...

Claims

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Application Information

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IPC IPC(8): C09D7/61C09D125/14C09D163/00
CPCC08K2003/2241C08K2201/011C08K2201/014C08L2205/025C08L2205/03C08L2205/035C09D125/14C08L63/00C08L71/02C08L83/04C08K13/04C08K3/34C08K3/22C08K7/04C08K7/08
Inventor 万贤虎
Owner ANHUI EMINENT BUILDING MATERIALS TECH
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