High-polymer modified water-emulsion asphalt-based thick waterproof paint and preparation method thereof

A technology of polymer modified and waterproof coatings, applied in asphalt coatings, chloroprene homopolymer coatings, cellulose coatings, etc., can solve the problems of poor coating stability, poor compatibility, affecting the water resistance of coating films, etc. , to achieve the effect of improving weather resistance, improving viscosity and plasticity, and good elasticity

Active Publication Date: 2014-02-05
ZHEJIANG YUXI CORROSION CONTROL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the common ones are modified asphalt waterproof coatings that simply rely on the addition of neoprene latex to improve performance. Poor resistance makes the coating less stable during storage, and the water-soluble oxides will also seriously affect the water resistance of the coating film

Method used

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  • High-polymer modified water-emulsion asphalt-based thick waterproof paint and preparation method thereof
  • High-polymer modified water-emulsion asphalt-based thick waterproof paint and preparation method thereof
  • High-polymer modified water-emulsion asphalt-based thick waterproof paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Pump 60# special asphalt for waterproof materials into the asphalt tank and heat to 160 ℃ ~ 180 ℃, add 3% APP, stir at high speed for 2 hours, then add 2% epoxy resin E51, stir for 30 minutes, and grind it through a colloid mill to prepare A good polymer modified asphalt material is stirred for 2 hours to remove foam and set aside. Pump hot water at 60°C into the soap tank, add 1% rosin soap emulsifier, 0.02% AEO-9 and 0.6% ethylenediamine, and adjust the pH value to 11 with NaOH to make soap . The prepared polymer modified asphalt and soap solution are passed through a high-speed shearing machine at the same time to form a modified emulsified asphalt emulsion with a concentration of about 60%. Add 25% neoprene latex to the emulsion, and then 2% SiO 2 , 3% bentonite and 0.2% cellulose. During the feeding process, stir slowly and continuously to disperse evenly. After the feeding is completed, keep stirring for 30 minutes, then stop stirring, add a small amount of defoa...

Embodiment 2

[0027] Pump 70# heavy-duty asphalt into the asphalt tank and heat it to 150°C-170°C, add 3% APAO, stir at high speed for 2 hours, then add 2% epoxy resin E44, stir for 30 minutes, grind it through a colloid mill, and prepare The polymer modified asphalt material was stirred for 2 hours to defoam and set aside. Pump hot water at 60°C into the soap tank, add 1% rosin soap emulsifier, 0.02% AEO-9 and 0.4% ethylenediamine, and adjust the pH value to 11 with NaOH to make soap . The prepared polymer modified asphalt and soap solution are simultaneously passed through a high-speed shearing machine to make a modified emulsified asphalt emulsion with a concentration of about 60%. Add 15% neoprene latex and 10% styrene-butadiene latex to the emulsion, and then 2% SiO 2 , 3% bentonite and 0.2% cellulose. During the feeding process, stir slowly and continuously to disperse evenly. After the feeding is completed, keep stirring for 30 minutes, then stop stirring, add a small amount of def...

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Abstract

The invention discloses a high-polymer modified water-emulsion asphalt-based thick waterproof paint and a preparation method thereof. The paint is prepared by taking high-concentration ultrafine suspension microemulsion anion modified emulsified asphalt, a polyolefins modifier, rubber emulsions such as chloroprene rubber or butadiene styrene rubber or the like, multiple synthetic high-molecular polymers such as epoxy resin and the like, inorganic powders such as SiO2 and bentonite and the like as raw materials and mixing by employing a special production technology. Tests show that after a film is formed from the paint, no embrittlement happens at a low temperature of -20 DEG C, no flow happens at a high temperature of 120 DEG C, the elasticity recovery rate reaches up to 90%, and the paint can be stored stably for one year or more.

Description

technical field [0001] The invention relates to waterproof building materials, in particular to a high-polymer modified water-emulsion type asphalt-based thick waterproof coating and a preparation method thereof. Background technique [0002] As a traditional waterproof material, asphalt has good hydrophobicity, impermeability, plasticity and adhesiveness, and it is a cheap building waterproof material commonly used at home and abroad, but it has low-temperature embrittlement, high-temperature flow, poor elasticity and Defects such as poor aging resistance. [0003] At present, in my country's water-based asphalt-based waterproof coatings, most of the modified asphalt waterproof coatings are thin, while the thick coatings have not been modified. For thick coatings, since asphalt has not been modified, its elongation is low and its flexibility at low temperature is poor, although thick coatings can be formed, its waterproof effect is still limited. [0004] In my country, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D195/00C09D111/00C09D109/06C09D123/14C09D123/12C09D153/02C09D163/02C09D101/02C09D7/12
Inventor 欧曙辉
Owner ZHEJIANG YUXI CORROSION CONTROL CORP
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