Polymeric environmentally-friendly root puncture-resistant waterproof polyurethane coating for planting roof

A waterproof coating and polymer technology, applied in the field of coatings, to achieve the effects of excellent weather resistance, excellent physical and mechanical properties, and high tensile strength

Inactive Publication Date: 2019-02-01
四川杨氏达防水材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polyurethane waterproof coatings first appeared in countries such as Europe and the United States, and domestic research in this area began in the 1970s. Its appearance made up for the shortage of asphalt waterproof coatings and coiled materials, especially at present, most of the domestic planting roof waterproofing materials are almost They are all series of asphalt root-blocking and puncture-resistant membranes, which pose great challenges in construction and weather resistance. With these problems, in order to make the planted roof more waterproof, root-blocking, and weather-resistant, it is necessary to develop a suitable for Environmentally friendly polyurethane root-blocking puncture-resistant waterproof coating for planting roofs

Method used

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  • Polymeric environmentally-friendly root puncture-resistant waterproof polyurethane coating for planting roof
  • Polymeric environmentally-friendly root puncture-resistant waterproof polyurethane coating for planting roof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] By weight, add 15 parts of polyether 2000N, 10 parts of polyether 330N, 0.2 parts of dispersant, 0.2 part of defoamer, 20 parts of talcum powder, 5 parts of kaolin, 15 parts of heavy calcium, and 5 parts of nano-TiO2 into the closed reaction kettle, Mixing and heating by high-speed stirring, dehydration under reduced pressure at 120°C 0.06Mpa for 180min, so that the moisture content of the material in the reactor is ≤0.02%, lower the temperature to 75°C-80°C, add 4 parts of MDI, and react at a constant temperature at 80°C 120min, add 0.06 part of catalyst, react for 60min, stop the reaction, add 1.2 parts of root inhibitor, 1 part of latent curing agent, 0.2 part of antioxidant, 1 part of anti-sedimentation agent under high-speed stirring after the reaction, keep stirring for 60 minutes , and finally lowered to below 40°C for discharge.

Embodiment 2

[0026] Add 20 parts of polyether 2000N, 10 parts of polyether 330N, 0.5 parts of dispersant, 0.5 parts of defoamer, 22 parts of talc, 6 parts of kaolin, 16 parts of heavy calcium, and 7 parts of nano-TiO2 into the closed reaction kettle, and pass Stir, mix and heat, dehydrate under reduced pressure at 120°C 0.06Mpa for 180min, make the moisture content of the material in the reactor ≤0.02%, cool down to 75°C-80°C, add 6 parts of MDI and react at constant temperature for 120min at 80°C, add 0.1 part of catalyst, after reacting for 60 minutes, stop the reaction, add 0.8 parts of root inhibitor, 1.5 parts of latent curing agent, 0.5 parts of antioxidant, 2 parts of anti-settling agent under high-speed stirring after the reaction, keep stirring for 60 minutes, and finally drop Discharge below 40°C.

[0027] The construction process is as follows:

[0028] Grassroots treatment --- brushing the primary treatment agent --- additional layer construction of weak parts --- brushing the...

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Abstract

The invention discloses a polymeric environmentally-friendly root puncture-resistant waterproof polyurethane coating for a planting roof. The root puncture-resistant waterproof polyurethane coating comprises, by weight, 15-20 parts of polyether 2000N, 5-10 parts of polyether 330N, 4-6 parts of MDI, 0.06-0.1 part of a catalyst, 1-1.5 parts of a latent curing agent, 0.5-1.5 parts of a root punctureinhibitor, 0.2-0.5 part of a dispersant, 0.2-0.5 part of a defoamer, 0.2-0.5 part of an antioxidant, 45-55 parts of a filler and 1-2 parts of an anti-settling agent. Polyether polyol and isocyanate are used as basic raw materials, the chemical root puncture inhibitor is added, multiple additives and fillers are added, and addition polymerization is carried out to obtain the root puncture-resistantwaterproof polyurethane coating; and -NCO in a polyurethane prepolymer is contacted and chemically reacted with moisture in air to generate chemical bonds in order to form an elastic, tough, compactand highly-strong jointless integral waterproof coating film.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to a polymer environment-friendly polyurethane root-blocking and puncture-resistant coating film material used for planting roof waterproofing parts. Background technique [0002] Polyurethane waterproof coatings first appeared in countries such as Europe and the United States, and domestic research in this area began in the 1970s. Its appearance made up for the shortage of asphalt waterproof coatings and coiled materials, especially at present, most of the domestic planting roof waterproofing materials are almost They are all series of asphalt root-blocking and puncture-resistant membranes, which pose great challenges to construction and weather resistance. With these problems, in order to make the planted roof more waterproof, root-blocking, and weather-resistant, it is necessary to develop a suitable for Environmentally friendly polyurethane root-blocking puncture-resistant wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/08C09D7/61
CPCC08K2003/2241C08K2003/265C08K2201/011C09D7/61C09D175/08C08K3/34C08K3/346C08K3/26C08K3/22
Inventor 杨小林任雯徐天勇肖立黄飞巫治国曾心
Owner 四川杨氏达防水材料有限公司
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