Polymer cement RG waterproof coating and preparation method therefor

Abstract

The present invention provides a polymer cement RG waterproof coating. The coating comprises a liquid material and a powder material, wherein the liquid material comprises an emulsion, an NXZ defoamer, an A10 defoamer, a dispersant, a thickener, a preservative, and water; the powder material comprises white cement and heavy calcium. The present invention also provides a polymer cement RG waterproof coating. The coating comprises a liquid material and a powder material. The feedstock of the liquid material is as follows in parts of weight: 90 parts of a modified polyacrylic elastic emulsion, 10 parts of a VAE emulsion, 50 parts of an SD-5281 nanometre silicone-acrylic emulsion, 60 parts of an SD-628 tertiary fluoro emulsion, 8 parts of a sodium polycarboxylic acid dispersing agent, 10 parts of a DR-7010 thickener, 5 parts of the A10 defoamer, 5 parts of a compound preservative, and 20 parts of water. The invention has the advantages of good impermeability, high tensile strength, high breaking elongation, and high bond strength.

Description

technical field [0001] The invention relates to a polymer cement RG waterproof coating and a preparation method thereof, belonging to the field of waterproof coatings. Background technique [0002] In the field of waterproof materials, there are currently two types of waterproof membranes and waterproof coatings. The waterproof membranes have the following disadvantages: ① There are lap joints during the construction of the membranes. The lap seam is the weak link of the membrane waterproofing layer, therefore, the entire waterproofing layer cannot achieve continuity and integrity. ② When the coiled material is laid empty, once there is leakage, there will be water leakage in the entire waterproof fortified area. Therefore, the loss caused by leakage will be large, and it is difficult to determine the leakage point. It is difficult to repair. ③The requirements for the construction base surface are high, especially the moisture content of the base surface. If the moisture ...

AI Technical Summary

Problems solved by technology

The lap seam is the weak link of the membrane waterproofing layer, therefore, the entire waterproofing layer cannot achieve continuity and integrity

② When the coiled material is laid empty, once leakage occurs, there will be water leakage in the entire waterproof fortification area

Therefore, the loss caused by leakage will be large, and it is difficult to determine the leakage point

difficult to repair

③ High requirements for the construction base surface, especially the moisture content of the base surface, if the moisture content of the base surface is too high, it will seriously affect the construction quality of the waterproof layer

In underground engineering, because the base surface is often in a wet state, there is a contradiction between the construction conditions and the construction period

④ Special-shaped base surface, the construction is more difficult

It is more difficult to use coiled material to seal the root of the matrix insert (such as wall pipes, etc.), so it will have a greater impact on the quality of waterproofing projects

⑤ poor adhesion, if there is any follow-up construction will be affected

⑥ There are certain fire hazards in the construction

[0004] However, the current waterproof coatings have the following disadvantages: ①The waterproof layer is formed on site, and the quality of the waterproof layer is greatly affected by artificial construction factors

③Because it is not resistant to ultraviolet aging and other reasons, it is generally not used for exposure

[0008] (1) Poor impermeability and impermeability, low tensile strength and bonding strength, low elongation at break, and poor UV resistance;

[0009] (2) It cannot be used not only for building waterproofing projects in non-long-term flooding environments, but also for construction projects in long-term flooding environments;

[0010] (3) The amount of emulsion is large and the production cost is high;

[0011] (4) Low elasticity, poor anti-cracking ability, and small anti-cracking ability of the coating film;

[0012] (5) Short service life;

[0013] (6) Not resistant to low temperature, poor flexibility at low temperature