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A kind of metal roof thermal insulation waterproof coating and preparation method thereof

A technology for metal roofing and waterproof coatings, applied in the direction of reflection/signal coatings, chloroprene homopolymer coatings, coatings, etc., can solve the problem of low tensile strength retention rate, no heat resistance, Easy aging and other problems, to achieve the effect of improving stability and heat insulation effect, improving permeability and leveling, and improving tensile strength retention rate

Active Publication Date: 2022-01-11
BEIJING CENTURY YONGFENG WATERPROOF MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above-mentioned waterproof materials have poor UV resistance, low cohesiveness, and are easy to age, so they are not suitable for outdoor use. In addition, they have no heat insulation and heat-resistant components, and are even more unsuitable as waterproof materials for steel structure metal roofs.
[0004] The publication number is CN102993831A, which discloses a heat-insulating and waterproof coating for metal roofs. By adding rutile-type titanium dioxide, ultra-fine barium sulfate, hollow glass microspheres and other inorganic fillers that reflect infrared rays and thermal visible light, the metal roofs are heat-insulated and waterproof. The coating has excellent anti-ultraviolet ability and heat insulation and energy-saving performance, but the compatibility of hollow glass microspheres and other inorganic fillers that reflect infrared and thermal visible light in the system is poor, and they cannot be uniformly and stably dispersed in neoprene latex And acrylic waterproof emulsion, not only reduces the heat insulation reflection effect, but also reduces the adhesion of neoprene latex and acrylic waterproof emulsion to the metal roof, resulting in a lower tensile strength retention rate of the metal roof insulation waterproof coating after immersion

Method used

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  • A kind of metal roof thermal insulation waterproof coating and preparation method thereof
  • A kind of metal roof thermal insulation waterproof coating and preparation method thereof
  • A kind of metal roof thermal insulation waterproof coating and preparation method thereof

Examples

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Effect test

preparation example 1

[0040] Preparation examples 1-8 provide a silicone-modified hollow glass microsphere, and preparation example 1 is taken as an example for illustration below.

[0041] The organosilicon modified hollow glass microspheres provided by Preparation Example 1, its preparation steps are:

[0042] (1) Add 500L aqueous sodium hydroxide solution with a concentration of 0.2mol / L to 10kg hollow glass microspheres, react at 75°C for 2h, wash with deionized water until neutral, filter with suction, take the solid, and dry the solid at 80°C , to obtain hydroxylated hollow glass microspheres;

[0043] (2) Add 400L of ethanol aqueous solution with a volume ratio of 1:3 to the hydroxylated hollow glass microspheres prepared in step S1, and then add 2kg of 1,3-divinyltetraethoxydisilane (CAS No. 3682-26- 6) and 1kg 3-mercaptopropyltrimethoxysilane (CAS No. 4420-74-0), reacted at 80°C for 4h, suction filtered after the reaction, washed the solid with ethanol 5 times, and put the washed solid at...

preparation example 6

[0047] Preparation Example 6 differs from Preparation Example 1 only in that: the equivalent mass of 1,3-divinyltetraethoxydisilane is replaced by 3-mercaptopropyltrimethoxysilane.

preparation example 7

[0048] Preparation Example 7 differs from Preparation Example 1 only in that: the equivalent mass of 3-mercaptopropyltrimethoxysilane is replaced by 1,3-divinyltetraethoxydisilane.

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Abstract

The application belongs to the technical field of building materials, and in particular relates to a heat-insulating and waterproof coating for metal roofs and a preparation method thereof. In parts by weight, the raw materials for preparing the metal roof heat-insulating and waterproof coating include 5-15 parts of alumina-treated rutile-type titanium dioxide, 10-20 parts of silicone-modified hollow glass microspheres, and 30 parts of silicone-modified acrylic emulsion. ‑50 parts, 25‑40 parts of neoprene latex, 0.5‑2 parts of silicone water repellent, 5‑10 parts of attapulgite, 1‑5 parts of polyethyleneimine, 1‑3 parts of dispersant, film-forming aid 1‑2 parts, 5‑10 parts of water. The heat-insulating and waterproof paint for metal roofs provided by this application integrates waterproof and heat-insulation, can greatly simplify the construction process of metal roof paints, and has the advantages of good stability, good heat-insulation and reflection effects, and high retention rate of tensile strength after immersion in water.

Description

technical field [0001] The application belongs to the technical field of building materials, and in particular relates to a heat-insulating and waterproof coating for metal roofs and a preparation method thereof. Background technique [0002] Steel structure buildings have the advantages of light weight, high strength, high degree of factory pre-installation, convenient construction, and significant comprehensive economic benefits. At the same time, there are many problems. The corrosion and water leakage of steel structure metal roofs are more serious. The leakage of metal roof of steel structure not only directly affects people's production and life, but also makes the roof wet after water intrusion, which will aggravate the corrosion after a long time, cause the steel structure to be damaged, and even cause danger. [0003] At present, SBS waterproof membrane, sealant, polyurethane, and acrylic waterproof coating are often used as waterproof materials for metal roof coati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/04C09D111/02C09D7/62C09D7/65C09D7/61C09D5/33
CPCC09D143/04C09D7/62C09D7/65C09D7/61C09D5/004C08K2003/2241C08L11/02C08L79/02C08L71/02C08L33/02C08K9/06C08K7/28C08K9/02C08K3/22C08K3/346
Inventor 刘帅米伟刘洋李永辉刘传云
Owner BEIJING CENTURY YONGFENG WATERPROOF MATERIALS
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