Nano modified polymer-based roof waterproof paint and its production process

A nano-modified, waterproof coating technology, applied in the direction of anti-fouling/underwater coatings, coatings, paints containing biocide, etc., can solve the problems of increasing the cost of waterproofing projects and inconvenient maintenance

Inactive Publication Date: 2003-09-10
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

Therefore, at present, polymer-based waterproof coatings are mainly suitable for indoor waterproofing, such as roof waterproofing, usually non-exposed roof waterproofing, that is, a protective layer is made on the roof waterproofing layer, whi

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 5

[0025] 55% polyacrylate emulsion, 0.8% nano silicon dioxide grafted with polyethylene glycol, 5% organic montmorillonite, and 39.2% light calcium carbonate. Nano-silica is first added to polyacrylate emulsion and dispersed under the action of ultrasonic waves, then organic montmorillonite is added, and intercalation compounding is carried out under high-speed stirring, and finally light calcium carbonate and appropriate amount of dispersant and defoamer are added , through stirring and grinding to obtain nano-modified polyacrylate roof waterproof coating. The coating is used for roof waterproofing and exhibits excellent mechanical properties, waterproof performance and UV resistance.

Embodiment 6

[0027] 30% polyacrylate emulsion, 30% ethylene-vinyl acetate copolymer emulsion, 2% nano-silica treated with γ-(2,3-propylene oxide) propyltrimethoxysilane, 3% organic montmorillonite, Light calcium carbonate 35%. Polyacrylate emulsion and ethylene-vinyl acetate copolymer emulsion are mixed with each other first, then nano-silica is added to the mixed emulsion to disperse under the action of ultrasonic waves, and then organic montmorillonite is added, and intercalation compounding is carried out under high-speed stirring , and finally add light calcium carbonate, appropriate amount of dispersant and defoamer, stir and grind to obtain nano-modified polymer emulsion roof waterproof coating. The coating is used for roof waterproofing and exhibits excellent mechanical properties, waterproof performance and UV resistance.

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Abstract

The nano modified polymer-based waterproof roof paint incldues polymer emulsion as base material, calcium carbonate, talcum and mica as stuffing, characterized inorganic nano particle and sodium-base montmorillonoid as modifier. The production process includes dispersing the inorganic nano particle as modifier in the base material under the action of ultrasonic wave, adding sodium-base montmorillonid through high speed stirring for inserting compounding; adding stuffing while stirring, grinding and filtering. By means of the composite modification, the paint of the present inventino has excellent mechanical performance and waterproof performance and excellent uvioresistant capacity, and may be used to prolong the service life of roof obviously.

Description

technical field [0001] The invention relates to a waterproof coating suitable for roof waterproofing in various construction projects and a manufacturing method thereof. Background technique [0002] Polymer-based waterproof coatings have developed rapidly due to their advantages such as convenient production and construction, integral film formation, easy maintenance and the ability to form colored roof waterproofing layers. Polyurethane waterproof coatings, acrylate rubber emulsion waterproof coatings, ethylene-vinyl acetate Copolymer emulsion waterproof coatings have been widely used at home and abroad. However, polymer-based waterproof coatings are used for waterproofing exposed roofs, and their service life is short due to poor mechanical properties (such as strength, tear resistance, and puncture resistance) and aging resistance. Therefore, at present, polymer-based waterproof coatings are mainly suitable for indoor waterproofing, such as roof waterproofing, usually n...

Claims

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Application Information

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IPC IPC(8): C09D5/16C09D123/08C09D125/14C09D133/04
Inventor 余剑英
Owner WUHAN UNIV OF TECH
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