Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of anti-ice-pulling coating

A coating and anti-icing technology, applied in coatings, polyurea/polyurethane coatings, sea area engineering, etc., can solve problems such as inconvenient operation and management, high cost, and endangering dam safety

Active Publication Date: 2019-06-28
新疆万华昌兴节能科技有限责任公司
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the existence of internal and external temperature differences, the tensile stress exceeding the allowable RCC dam body itself will be generated, and the concrete will produce cracks or even penetrating cracks due to the tensile stress, which will cause leakage of the dam body, bring inconvenience to operation management, and even endanger the dam Safety
[0003] For example, in a project located in a severe cold area, due to the damage of the insulation layer of the dam body due to the ice pullout force, the dam body seeps water, and under the action of frost heaving, the dam body leaks seriously, so grouting treatment has to be carried out, which is costly

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of anti-ice-pulling coating
  • Preparation method of anti-ice-pulling coating
  • Preparation method of anti-ice-pulling coating

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0020] The invention provides a kind of preparation method of anti-icing coating, comprises the following steps:

[0021] Pretreating the insulation layer to obtain a pretreated insulation layer;

[0022] Coating polyaspartate group polyurea on one side of the pretreatment insulation layer to obtain a polyurea layer;

[0023] Coating a fluorine-modified resin topcoat on the surface of the polyurea layer to obtain a fluorine-modified resin topcoat layer and an anti-icing pullout coating;

[0024] The fluorine-modified resin topcoat is prepared by addition reaction of aspartame resin and fluorocarbon resin.

[0025] The invention performs pretreatment on the insulation layer to obtain the pretreatment insulation layer. In the present invention, the insulation layer is preferably a polyurethane base layer or a polystyrene board base layer; the flatness of the pretreatment insulation layer is preferably less than 3 mm; Grind the surface of the layer until it is smooth and smoot...

Embodiment 1

[0038] Select the insulation layer of the dam body in a severe cold area, and pretreat the insulation layer:

[0039] Use a grinder to grind the surface of the polyurethane insulation layer, use geotextiles to do a good job of shielding and protection to prevent contamination of adjacent parts, and grind until it is smooth and clean without sudden changes. After grinding, use high-pressure air to clean the base surface to remove floating ash on the surface of the base , requiring dryness, cleanliness, and no dirt to obtain a pretreatment insulation layer;

[0040] After the base treatment is completed, check and accept it. The flatness of the pretreatment insulation layer is 3mm, no air bubbles, holes, and uniform layer thickness;

[0041] Inspection of polyurea layer sample:

[0042] Before construction, coat a piece of polyurea layer sample with a thickness of 200×200mm and not less than 1.5mm, evaluate the appearance quality and retain the sample for inspection.

[0043] ...

Embodiment 2

[0056] Select the insulation layer of the dam body in a severe cold area, and pretreat the insulation layer:

[0057] Use a grinder to grind the surface of the polyurethane insulation layer, use geotextiles to do a good job of shielding and protection to prevent contamination of adjacent parts, and grind until it is smooth and clean without sudden changes. After grinding, use high-pressure air to clean the base surface to remove floating ash on the surface of the base , requiring dryness, cleanliness, and no dirt to obtain a pretreatment insulation layer;

[0058] After the base treatment is completed, check and accept it. The flatness of the pretreatment insulation layer is 2.5mm, no air bubbles, holes, and uniform layer thickness;

[0059] Inspection of polyurea layer sample:

[0060] Before construction, coat a piece of polyurea layer sample with a thickness of 200×200mm and not less than 1.5mm, evaluate the appearance quality and retain the sample for inspection.

[0061...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Surface dry timeaaaaaaaaaa
Tensile strengthaaaaaaaaaa
Tear strengthaaaaaaaaaa
Login to View More

Abstract

The invention provides a preparation method of an anti-ice-pulling coating and belongs to the technical field of coating preparation. An insulating layer is pre-treated, the ash on the surface of theinsulating layer is cleared, and the insulation layer is required to be dry, clean and free from dirt; the cohesive property and the excellent weather resistance between polyaspartic acid ester grouppolyurea and the insulating layer base are used, and the anti-ice-pulling performance of the insulating later is improved; the fluorine group of fluorocarbon resin is introduced to the fluorine modified resin finishing coat through addition on the basis of the asparagus polyurea resin, the asparagus polyurea resin has excellent weather resistance, the weather resistance of the film of the preparedcoating is high, the surface energy is low, the friction coefficient is small, the substances adhering to the surface of the fluorine modified resin finishing coat can be separated easily, the binding force of the coating and an ice body is reduced, and the anti-ice-pulling effect is enhanced. The cohesive property of the insulating layer of the prepared anti-ice-pulling coating and a polyurea layer is excellent, and the ice-pulling force phenomenon doesn't occur in the whole winter.

Description

technical field [0001] The invention relates to the technical field of coating preparation, in particular to a preparation method of an anti-ice pulling coating. Background technique [0002] Dam cracks are a common problem in roller compacted concrete dams, and temperature stress is the main cause of dam concrete surface cracks. In order to prevent temperature stress from causing cracks on the concrete dam surface of the dam body, in severe cold regions, thermal insulation is usually carried out on the surface of the roller compacted concrete dam body, and the thermal insulation material is generally polystyrene board or polyurethane thermal insulation material. However, in severe cold areas, the temperature is low and the thickness of the frozen layer is large. Generally, the thickness of the frozen layer in severe cold areas is greater than 1.6 meters, because the ice body and the dam body have been frozen into a whole. When the reservoir supplies water or generates elec...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): E02B3/16C09D175/02C09D187/00
Inventor 王立成张恒瑜林峰赵成先丁照祥方文时罗建华张俊平陈晓泓李岳东
Owner 新疆万华昌兴节能科技有限责任公司