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Polymer cement waterproof coating and preparation method thereof

A waterproof coating and polymer technology, applied in the field of architectural waterproof coatings, can solve the problems of coating waterproof ability decline, waterproof layer damage, poor crack resistance, etc., and achieve the effects of short drying time, good low temperature performance and high bonding strength

Inactive Publication Date: 2021-01-05
东莞市山力高分子材料科研有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing ordinary polymer cement waterproof coatings have poor crack resistance, and are often pulled apart due to shrinkage and deformation of the base layer. At the same time, if they are subjected to external forces after coating, they are prone to deformation or small cracks, which will cause local damage to the waterproof layer. Causes the waterproof ability of the coating to decrease, thus limiting the application of polymer cement waterproof coatings

Method used

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  • Polymer cement waterproof coating and preparation method thereof
  • Polymer cement waterproof coating and preparation method thereof
  • Polymer cement waterproof coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The polymer cement waterproof coating of this embodiment is composed of component A and component B. The raw materials, dosages and proportions of components A and B in components A and B are shown in Table 1.

[0028] The modified emulsion of this embodiment is a styrene-acrylic emulsion, which is purchased from the market and purchased from Bardford Company.

[0029] The defoamer of this embodiment is a water-based defoamer, which is self-made.

[0030] The cement of this embodiment is 42.5R type, purchased from the market, purchased from Conch Cement Company.

[0031] The quartz sand in this embodiment includes two particle sizes of 100 mesh and 150 mesh, purchased from the market, and purchased from Guangdong Qingyuan Quartz Sand Company.

[0032] The additives in this embodiment include water reducer, thickener and stabilizer, which are purchased from the market and purchased from Guangzhou Kehua Chemical Company.

[0033] The active masterbatch of this embodimen...

Embodiment 2

[0039] The polymer cement waterproof coating of this embodiment is composed of component A and component B. The raw materials, dosages and proportions of components A and B in components A and B are shown in Table 1.

[0040] The modified emulsion in this embodiment is styrene-acrylic emulsion and VAE emulsion, which are purchased from the market and purchased from Bardford Company.

[0041] The defoamer of this embodiment is a water-based defoamer, which is self-made.

[0042] The cement of this embodiment is 42.5R type, purchased from the market, purchased from Conch Cement Company.

[0043] The quartz sand in this embodiment includes two particle sizes of 100 mesh and 150 mesh, purchased from the market, and purchased from Guangdong Qingyuan Quartz Sand Company.

[0044] The additives in this embodiment include water reducer, thickener and stabilizer, which are purchased from the market and purchased from Guangzhou Kehua Chemical Company.

[0045] The active masterbatch o...

Embodiment 3

[0048] The polymer cement waterproof coating of this embodiment is composed of component A and component B. The raw materials, dosages and proportions of components A and B in components A and B are shown in Table 1.

[0049] The modified emulsion in this embodiment is styrene-butadiene emulsion, styrene-acrylic emulsion and VAE emulsion, which are purchased from the market and purchased from Bardford Company.

[0050] The defoamer of this embodiment is a water-based defoamer, which is self-made.

[0051]The cement of this embodiment is 42.5R type, purchased from the market, purchased from Conch Cement Company.

[0052] The quartz sand in this embodiment includes two particle sizes of 100 mesh and 150 mesh, purchased from the market, and purchased from Guangdong Qingyuan Quartz Sand Company.

[0053] The additives in this embodiment include water reducer and thickener, purchased from the market, purchased from Guangzhou Kehua Chemical Company.

[0054] The active masterbatch...

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Abstract

The invention discloses a polymer cement waterproof coating and a preparation method thereof, the polymer cement waterproof coating comprises a component A and a component B, the mass ratio of the component A to the component B is 1:0.7-1:1.5; wherein the component A comprises the following components by mass: 70-95 parts of a modified emulsion and 5-30 parts of water; the component B comprises the following components by mass: 55-65 parts of cement, 30-40 parts of quartz sand and 2-5 parts of active master batch; the preparation method specifically comprises the following steps of: (1) uniformly mixing the modified emulsion and water in a reaction container to obtain the component A; (2) adding cement, quartz sand and the active master batch into stirring equipment, and uniformly mixing the substances to obtain the component B; and (3) uniformly mixing the component A and the component B according to the mass ratio to obtain the polymer cement waterproof coating. The preparation method is simple, the prepared coating is short in drying time, high in bonding strength and good in high-low temperature performance, and fine cracks generated in the using process of the coating can be automatically repaired.

Description

technical field [0001] The invention belongs to the technical field of architectural waterproof coatings, and in particular relates to a polymer cement waterproof coating and a preparation method thereof. Background technique [0002] Most of the existing polymer cement waterproof coatings are two-component water-based architectural waterproof coatings, which have the dual properties of the durability of inorganic materials and the high elasticity of organic materials. Its construction is simple, the film strength is high, and the waterproof effect is good. It has been developed rapidly in recent years and is widely used in the construction waterproof industry. [0003] However, the existing ordinary polymer cement waterproof coatings have poor crack resistance, and are often pulled apart due to shrinkage and deformation of the base layer. At the same time, if they are subjected to external forces after coating, they are prone to deformation or small cracks, which will cause...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B24/38C04B111/27C04B103/65
CPCC04B28/00C04B40/0039C04B2111/27C04B2103/65C04B2201/50C04B12/04C04B22/0093C04B22/124C04B22/10C04B24/383C04B24/06C04B24/16C04B22/16C04B14/06C04B24/2641C04B24/2623C04B24/2676C04B2103/50C04B2103/302C04B2103/44C04B2103/0068
Inventor 张中华罗伟雄
Owner 东莞市山力高分子材料科研有限公司
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