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Waterproof coating for metal roof and preparation and using method of coating

A waterproof coating and metal roofing technology, applied in the field of coating chemistry, can solve the problems of insufficient adhesion and mechanical properties, inability to effectively protect the building surface for a long time, water seepage and other problems, and achieve good waterproof effect, simple operability, The effect of good elasticity and fatigue resistance

Inactive Publication Date: 2018-06-08
宁夏刘氏环宇建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the protection of metal roofs, waterproof coatings are often used for coating. However, although the existing waterproof coatings have a certain waterproof effect, their adhesion and mechanical properties often fail to meet the requirements when facing complex environments or weather conditions. , and thus cannot effectively protect the surface of the building for a long time, resulting in cracking, water seepage and other consequences

Method used

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  • Waterproof coating for metal roof and preparation and using method of coating
  • Waterproof coating for metal roof and preparation and using method of coating

Examples

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Effect test

Embodiment 1

[0023] A kind of waterproof coating for metal roof, including deionized water 145kg, hydroxyethyl cellulose 0.5kg, defoamer 4kg, 2-amino-2-methyl-1-propanol 1kg, ammonium salt 6kg, nonionic Surfactant 1.5kg, titanium dioxide 470kg, water-based acrylic emulsion 350kg, potassium tripolyphosphate 1kg, propylene glycol 8kg, plasticizer 6kg, fungicide 1.8kg, polyurethane thickener 8kg, alkali swelling thickener 75kg, of which, alkali The solid content of the swelling thickener is 50%.

[0024] A preparation method for a waterproof coating for metal roofs, comprising the steps of:

[0025] (1) Add deionized water, hydroxyethyl cellulose and 2kg of defoamer into the dispersion kettle, and mix well;

[0026] (2) Add 2-amino-2-methyl-1-propanol, ammonium salt, non-ionic surfactant, titanium dioxide and mix evenly, then disperse at high speed for 20-50 minutes;

[0027] (3) Add water-based acrylic emulsion, potassium tripolyphosphate, propylene glycol, plasticizer, bactericide and the...

Embodiment 2

[0030] A kind of waterproof paint for metal roof, including deionized water 148kg, hydroxyethyl cellulose 0.3kg, defoamer 4kg, 2-amino-2-methyl-1-propanol 1kg, ammonium salt 7kg, nonionic Surfactant 1.8kg, titanium dioxide 270kg, barium sulfate 210kg, water-based acrylic emulsion 320kg, potassium tripolyphosphate 1kg, propylene glycol 6kg, plasticizer 4kg, fungicide 1.5kg, polyurethane thickener 6.6kg, alkali swelling thickener 70kg, wherein the solid content of the alkali-swellable thickener is 45%.

[0031] A preparation method for a waterproof coating for metal roofs, comprising the steps of:

[0032] (1) Add deionized water, hydroxyethyl cellulose and 2kg of defoamer into the dispersion kettle, and mix well;

[0033] (2) Add 2-amino-2-methyl-1-propanol, ammonium salt dispersant, non-ionic surfactant, titanium dioxide, barium sulfate and mix well, then disperse at high speed for 20-50 minutes;

[0034] (3) Add water-based acrylic emulsion, potassium tripolyphosphate, prop...

Embodiment 3

[0037] A kind of waterproof paint for metal roof, including deionized water 160kg, hydroxyethyl cellulose 1.0kg, defoamer 6kg, 2-amino-2-methyl-1-propanol 1.5kg, ammonium salt 6kg, alkane Base polyoxyethylene ether 1.5kg, nonionic surfactant 3kg, titanium dioxide 50kg, calcium carbonate 405kg, water-based acrylic emulsion 450kg, potassium tripolyphosphate 1.5kg, propylene glycol 10kg, plasticizer 8kg, fungicide 2.5kg, polyurethane Thickener 7.5kg, alkali-swellable thickener 96kg, wherein, the mesh number of calcium carbonate is 800 mesh, and the solid content of alkali-swellable thickener is 55%.

[0038] A preparation method for a waterproof coating for metal roofs, comprising the steps of:

[0039] (1) Add deionized water, hydroxyethyl cellulose and 3kg defoamer into the dispersion kettle, and mix well;

[0040] (2) Add 2-amino-2-methyl-1-propanol, ammonium salt, alkyl polyoxyethylene ether, nonionic surfactant, titanium dioxide, calcium carbonate and mix well, then dispers...

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Abstract

The invention belongs to the technical field of coating chemistry, and relates to a waterproof coating for a metal roof and a preparation and using method of the coating. The waterproof coating comprises 140-160 parts of deionized water, 0.2-1.0 part of hydroxyethyl cellulose, 2-6 parts of a defoaming agent, 0.5-1.5 parts of a pH regulator, 4-9 parts of a dispersant, 1-3 parts of a surfactant, 400-600 parts of a filler, 300-500 parts of a water-based acrylic emulsion, 0.5-2 parts of potassium tripolyphosphate, 5-10 parts of propylene glycol, 4-8 parts of a plasticizer and 1-3 parts of a bactericide, and the waterproof coating also comprises a polyurethane thickener and a basic swelling thickener, wherein the usage amount of the polyurethane thickener is 75%-120% of the usage amount of thepropylene glycol, and the usage amount of the basic swelling thickener is 45%-65% of the usage amount of the deionized water. The waterproof coating provided by the invention has excellent adhesive force on a metal substrate, is specially used for water prevention of a metal roof, has a good waterproof effect, and has good elasticity and fatigue resistance. The waterproof coating is a water-basedproduct, has no toxicity or smell, and is green and environmentally friendly.

Description

technical field [0001] The invention belongs to the technical field of paint chemistry, and relates to a waterproof paint for metal roofs and a preparation method thereof. Background technique [0002] In recent years, with the development of building metal materials and their processing technology, the use of metal materials as roof coverings has become more and more common; and with the rapid development of new metal roofs, more suitable protection systems are needed to protect buildings The surface of the material to ensure that there is no leakage and effectively prolong the service life of the metal roof. At the same time, with the increasing pressure of environmental protection, research and development of various green and environmentally friendly products is the mainstream trend. For the protection of metal roofs, waterproof coatings are often used for coating. However, although the existing waterproof coatings have a certain waterproof effect, their adhesion and me...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D7/61C09D7/63C09D7/65E04D5/10
Inventor 刘丕刘凯夏继影
Owner 宁夏刘氏环宇建材有限公司
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