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Nano modified multifunctional coating and preparation method thereof

A technology of nano-slurries and multi-functional additives, applied in coatings, conjugated diene coatings, latex paints, etc., can solve the problems of ineffective dispersion and instability of nano-powders, and improve various properties, Strong anti-aging performance and high chemical activity effect

Inactive Publication Date: 2005-07-20
倪卓
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a nano-slurry with stable dispersion and its preparation method to solve the problem that the nano-powder cannot be effectively dispersed in the water phase and is unstable after dispersion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0045] Example 1. Stir 5-25 grams of organic alcohols, 0.1-5 grams of polymer additives, and 50-80 grams of water in a container at a low speed, and adjust the pH value to alkaline. Use an ultrasonic device to disperse, stir at high speed, add 10-30 grams of nanomaterials at the same time, disperse for 0.5-1.5 hours, and complete the preparation of the slurry after measuring the viscosity to pass.

[0046] The prepared nano-slurry was subjected to a centrifugal sedimentation experiment on a centrifuge, and the slurry was centrifuged for 10 minutes without sedimentation.

example 2

[0047] Example 2. After pouring water (the amount added is 50% to 80% of the total amount) into the container, add multifunctional additive 1, add nano slurry under low-speed stirring, then add part of multifunctional additive 2, and stir evenly Finally, add the pigment and filler into the container and stir for 5-60 minutes.

[0048] After the dispersion is completed, the slurry enters the sand mill for sand grinding. After the fineness is measured, it enters the container, and the emulsion is added while stirring, so that the emulsion will be fully dissolved in the dispersion stage to form a slurry. After the stirring is completed, add water (the remaining 20% ​​to 50%) and other functional additives in sequence. After stirring well, add the remaining multi-functional additive 2, adjust the pH value of the coating to alkaline, and filter through a 200-mesh steel sieve to obtain the finished product.

[0049] project

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Abstract

The present invention is especially the recipe and preparation process of paint with stably dispersed nanometer powder. The present invention solves the problem of dispersing nanometer powder in paint stably and effectively. The nanometer modified paint prepared based on the present invention has no toxicity and no smell, and is scrub resistant, pollution resistant, high in elasticity, fungus resistant, antiseptic and ageing resistant.

Description

1. Technical field [0001] The invention relates to a preparation method of a nano-modified multifunctional coating. In particular, the method provides a manufacturing method for stably dispersing the nanopowder in the paint. 2. Technical background [0002] In the first 10 years of this century, my country's architectural coatings will mainly develop in the direction of high performance, environmental protection, and antibacterial functions. Among them, the development of exterior wall coatings focuses on water-emulsion coatings with high weather resistance, high stain resistance, high color retention and low toxicity to meet the needs of high-rise building exterior wall decoration. The focus of the development of interior wall paint is to adapt to healthy, environmentally friendly and safe green paint, including water-based paint series, green environmental protection and antibacterial interior wall latex paint. [0003] Nanotechnology has attracted much attention because...

Claims

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Application Information

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IPC IPC(8): C09D5/02C09D109/02C09D125/14C09D127/16C09D131/04
Inventor 倪卓邓军崔生翁凌
Owner 倪卓
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