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Special back water pressure nano environment-friendly waterproof coating

A waterproof coating and water pressure technology, applied in the field of coatings, can solve problems such as harmfulness to operators and the environment, inability to construct, solvent volatilization, etc., and achieve the effects of preventing mold growth, strong water penetration resistance, and excellent air permeability

Inactive Publication Date: 2019-01-18
张骏恒
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, solvent-based waterproof coatings have solvent volatilization during construction, which is harmful to operators and the environment, and cannot be applied in humid environments

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] The raw materials: 13 parts of polyurethane, 5 parts of vinyl acetate powder, 3 parts of silica sol, 47 parts of epoxy resin, 12 parts of cement, 25 parts of yellow sand, 2 parts of dispersant, 3 parts of defoamer , 0.2 parts of thickener, 3 parts of pH regulator and 4 parts of bonding aid, weighed according to a certain ratio, put into a high-speed mixer, premixed, and dried to obtain materials.

[0072] The twin-screw extruder is used to extrude the material at 75°C-85°C at the front end, and after the temperature of the extruder is raised to 110°C-120°C in the middle section, the material is extruded and formed, and the powder coating is obtained after crushing.

[0073] Described cohesive aid is made up of the raw material of following mass parts:

[0074] 46 parts of Eva emulsion, 2 parts of lauryl glucoside, 4 parts of methyl methacrylate, 2 parts of ammonium persulfate, 3 parts of allyl polyethylene glycol, 1 part of potassium zirconium carbonate, 3 parts of nano...

Embodiment 2

[0079] The raw materials: 12 parts of polyurethane, 5.5 parts of vinyl acetate powder, 5 parts of silica sol, 55 parts of epoxy resin, 14 parts of cement, 27 parts of yellow sand, 4 parts of dispersant, 4 parts of defoamer , 0.5 parts of thickener, 3 parts of pH regulator and 5 parts of bonding aid, weighed according to a certain ratio, put into a high-speed mixer, premixed, and dried to obtain materials.

[0080] The twin-screw extruder is used to extrude the material at 75°C-85°C at the front end, and after the temperature of the extruder is raised to 110°C-120°C in the middle section, the material is extruded and formed, and the powder coating is obtained after crushing.

[0081] Described cohesive aid is made up of the raw material of following mass parts:

[0082] 42 parts of Eva emulsion, 1 part of lauryl glucoside, 3 parts of methyl methacrylate, 1 part of ammonium persulfate, 4 parts of allyl polyethylene glycol, 2 parts of potassium zirconium carbonate, and 2 parts of...

Embodiment 3

[0087] The raw materials: 10 parts of polyurethane, 6 parts of vinyl acetate powder, 6 parts of silica sol, 53 parts of epoxy resin, 13 parts of cement, 26 parts of yellow sand, 5 parts of dispersant, 2 parts of defoamer , 0.4 parts of thickener, 2 parts of pH regulator and 4 parts of bonding aid, weighed according to a certain ratio, put into a high-speed mixer, premixed, and dried to obtain materials.

[0088] The twin-screw extruder is used to extrude the material at 75°C-85°C at the front end, and after the temperature of the extruder is raised to 110°C-120°C in the middle section, the material is extruded and formed, and the powder coating is obtained after crushing.

[0089] Described cohesive aid is made up of the raw material of following mass parts:

[0090] 48 parts of Eva emulsion, 3 parts of lauryl glucoside, 5 parts of methyl methacrylate, 3 parts of ammonium persulfate, 1 part of allyl polyethylene glycol, 3 parts of potassium zirconium carbonate, 2 parts of nano...

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PUM

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Abstract

The invention discloses a special back water pressure nano environment-friendly waterproof coating. The coating comprises the following components in parts by mass: 5-15 parts of polyurethane, 2-8 parts of vinyl acetate rubber powder, 1-7 parts of silica sol, 40-60 parts of epoxy resin, 7-15 parts of cement, 20-27 parts of yellow sand, 1-5 parts of a dispersant, 1-4 parts of a defoaming agent, 0.1-0.8 part of a thickening agent, 1-3 parts of a pH regulator and 2-5 parts of a bonding auxiliary agent. The special back water pressure nano environment-friendly waterproof coating has amazing hydroosmosis resistance and super strong adhesive force, does not has toxicity, heavy metals and formaldehyde, and has the advantages of good air permeability, mildew resistance, moisture resistance, dryness and brightness. This product is powdery and is convenient to transport. After the product provided by the invention is applied to construction, the coating penetrates into capillary pores of a building wall surface through a carrier, and a drying chamber expands to form a tough waterproof barrier layer with excellent permeation resistance, and the barrier layer can prevent water molecules from penetrating. The coating can be applied to various wet walls, and is especially suitable for solving the wall leakage problem which cannot be solved by a traditional grouting technology. The waterproofeffect can reach ten years or more.

Description

technical field [0001] The invention relates to a nano-environmental protection waterproof coating, which belongs to the technical field of coatings. Background technique [0002] Waterproof coating refers to a class of functional materials that can prevent rainwater, groundwater and other water from penetrating buildings or structures. [0003] Waterproofing in civil engineering is divided into two types: moisture-proof and seepage-proof (leakage). Moisture-proof refers to the application of waterproof coating to seal the surface of the building to prevent liquid substances from penetrating into the interior of the building. Anti-seepage (leakage) refers to preventing liquid substances from seeping into the interior of the building or seeping out of the liquid inside the building components through the internal voids, cracks and joints between the components. [0004] Waterproof coating is an indispensable functional material in construction engineering. It plays an impor...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D131/04C09D175/04C09D5/14C09D7/61C09D7/65C09D7/63
CPCC08K2003/2241C08K2201/011C08L2205/035C09D5/14C09D163/00C09D7/61C09D7/63C09D7/65C08L31/04C08L75/04C08L23/0853C08L27/18C08K13/04C08K3/22C08K3/36C08K3/04
Inventor 张骏恒张能标
Owner 张骏恒
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