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Surface coating for aluminum template as well as preparation method and application method of surface coating

A surface coating and aluminum formwork technology, applied in the direction of epoxy resin coating, coating, etc., can solve the problems of affecting the appearance of the wall, affecting the recycling of aluminum formwork, and large corroded area

Inactive Publication Date: 2021-05-14
重庆新久融科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there are also some challenges in the actual use process. Since the concrete is extremely alkaline, the part of the aluminum formwork that is in contact with the concrete is easily corroded by the concrete. After several times of use, the formed wall surface has serious roughness, which affects the The appearance of the wall is damaged. In severe cases, the wall needs to be repaired twice. At the same time, it is not conducive to the removal of the aluminum formwork from the formed wall.
In addition, with the use of aluminum formwork, the corrosion position of the aluminum formwork in contact with concrete will increase and the corroded area will become larger and larger, which will affect the recycling of aluminum formwork

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment one: the preparation of modified epoxy resin

[0025] Add the silica nanoparticles to the acetone solution, add the coupling agent and then ultrasonically treat it for 20 minutes, then stir and mix the solution and epoxy resin evenly, and then raise the temperature to 120°C to make the coupling agent and epoxy resin and dioxide The silicon nanoparticles were reacted for 60 minutes, and after cooling, a curing agent was added to obtain a modified epoxy resin.

Embodiment 2

[0026] Embodiment two: the preparation one of surface coating

[0027] 100 parts of ethyl acetate, 100 parts of modified epoxy resin, 50 parts of silicone resin, 20 parts of alumina powder, 10 parts of polyethylene glycol, 10 parts of polydimethylsiloxane, 10 parts of methyl silicone oil, organic 5 parts of silicon defoamer, 5 parts of dipropylene glycol butyl ether, 20 parts of epoxy curing agent, the average particle size of alumina powder is 10nm, and the specific surface area is 5m 2 / g, the crystal form is spherical.

[0028] Pour ethyl acetate into the reaction kettle, turn on the stirring device, the stirring speed is 100r / min, 5min, add modified epoxy resin, silicone resin, methyl silicone oil, alumina powder, polyethylene glycol to the reaction In the kettle, adjust the stirring speed to 450r / min, and stir for 10min until it is completely dissolved; adjust the temperature of the reaction kettle to 35-50°C and add polydimethylsiloxane, silicone defoamer, dipropylene g...

Embodiment 3

[0029] Embodiment three: the preparation two of surface coating

[0030] 100 parts of ethyl acetate, 150 parts of modified epoxy resin, 50 parts of silicone resin, 20 parts of alumina powder, 20 parts of polyethylene glycol, 15 parts of polydimethylsiloxane, 10 parts of methyl silicone oil, organic 5 parts of silicon defoamer, 10 parts of dipropylene glycol butyl ether, 10 parts of epoxy curing agent, the average particle size of alumina powder is 10nm, and the specific surface area is 5m 2 / g, the crystal form is spherical.

[0031] Pour ethyl acetate into the reaction kettle, turn on the stirring device, the stirring speed is 100r / min, 5min, add modified epoxy resin, silicone resin, methyl silicone oil, alumina powder, polyethylene glycol to the reaction In the kettle, adjust the stirring speed to 450r / min, and stir for 10min until it is completely dissolved; adjust the temperature of the reaction kettle to 35-50°C and add polydimethylsiloxane, silicone defoamer, dipropylen...

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Abstract

The invention relates to the technical field of aluminum template surface coatings, and in particular, relates to a surface coating for an aluminum template as well as a preparation method and an application method of the surface coating. The surface coating comprises the following raw materials in parts by weight: 100-200 parts of ethyl acetate, 100-200 parts of modified epoxy resin, 50-100 parts of organic silicon resin, 20-40 parts of alumina powder, 10-30 parts of a dispersing agent, 10-15 parts of a flatting agent, 10-20 parts of silicone oil, 5-10 parts of an organic silicon defoaming agent, 5-10 parts of dipropylene glycol butyl ether and 10-20 parts of a curing agent. The surface coating disclosed by the invention can prevent concrete from chemically reacting with the aluminum template, has a good protection effect on the surface of the aluminum template, can improve the smoothness of a wall surface, is easy to clean and reuse the aluminum template, and improves the use frequency of the aluminum template.

Description

technical field [0001] The invention relates to the technical field of surface coatings for aluminum templates, in particular to a surface coating for aluminum templates, a preparation method and an application method thereof. Background technique [0002] In recent years, aluminum formwork has been widely used. The full name of aluminum formwork is aluminum alloy formwork system for construction. It is a new generation of formwork support system after bamboo and wood formwork and steel formwork. Aluminum formwork has many advantages as follows: (1) Short construction period: normal construction of a set of formwork can reach one floor in four or five days. (2) The number of times of repeated use is large, and the average cost of use is low. (3) The concrete surface effect is good after the formwork is removed: After the aluminum alloy building formwork is removed, the concrete surface is smooth and smooth, which can basically meet the requirements of facing and fair-faced ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D183/04C09D7/61C09D7/63C09D7/65
CPCC09D163/00C09D7/61C09D7/63C09D7/65C09D7/70C08L2205/035C08L2205/025C08K2201/005C08K2201/006C08K2201/011C08K2003/2227
Inventor 唐华强
Owner 重庆新久融科技有限公司
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