High-permeability coating, preparation method and construction method

Abstract

The invention relates to the technical field of coatings, in particular to a high-permeability coating, a preparation method and a construction method. The invention relates to a high-permeability coating, which contains water-based nano inorganic silicon resin, deionized water, potassium silicate, ethylene glycol, a flexibilizer, a penetrant, a coupling agent, soap grains, polydimethylsiloxane, silane modified aliphatic epoxy resin, acetic acid and sodium carbonate. Comprising the following steps: S1, adding a penetrant into deionized water, uniformly stirring, and adding acetic acid to obtain a first mixture; s2, uniformly mixing water-based nano inorganic silicon resin, residual deionized water, potassium silicate and ethylene glycol to obtain a second mixture; s3, adding a coupling agent and silane modified aliphatic epoxy resin into the second mixing agent to obtain a third mixing agent; and S4, adding the toughening agent into the third mixing agent to obtain the high-permeability coating. The invention further provides a construction method of the coating.

Description

Technical Field

[0001] The invention relates to the technical field of coatings, in particular to a high-permeability coating, a preparation method and a construction method. Background Art

[0002] Some floors have many gaps and are not suitable for installation requirements. Re-construction will not only delay the construction period, but also cause waste. Using high-permeability paint to pour them can achieve the effect of reducing the existence of gaps, reducing costs and shortening the construction period.

[0003] In the patent document with the publication number "CN113667329B" and the name "A High-Permeability Sand-Fixing Primer", a high-permeability sand-fixing primer is disclosed, which is composed of the following ingredients: water-based nano-inorganic, silicone resin, deionized water, potassium silicate, ethylene glycol, toughening agent, defoaming agent, penetrant, coupling agent. In practice, the coating has a good penetration effect, but it also has the disadvantages of weak penetration ability and poor durability of the coating, which needs to be improved. Summary of the invention

[0004] The purpose of the present invention is to address the above shortcomings and provide a high-permeability coating with better permeability and more durable ground after construction and a preparation method, as well as a construction method of the coating.

[0005] The technical solution of the high permeability coating of the present invention is as follows: a high permeability coating, characterized in that: it is composed of the following components in weight ratio: 40-50 parts of water-based nano inorganic silicone resin, 30-40 parts of deionized water, 3-6 parts of potassium silicate, 3-7 parts of ethylene glycol, 2-3 parts of toughening agent, 1-2 parts of penetrant, 1-2 parts of coupling agent, 1-2 parts of soap particles, 2-4 parts of polydimethylsiloxane, 3-5 parts of silane-modified aliphatic epoxy resin, acetic acid, sodium carbonate; wherein: the water-based nano inorganic silicone resin is water-based nano inorganic silicone resin BS-518; The potassium silicate is nano potassium silicate; The toughening agent is a MBS type toughening agent; The penetrant is a composition of sodium dodecyl sulfonate, silane impregnating agent and petroleum calcium sulfonate, and the mass ratio of sodium dodecyl sulfonate, silane impregnating agent and petroleum calcium sulfonate is 3:2:1; The coupling agent is aminosilane coupling agent KH-550; The technical solution of the method for preparing a high-permeability coating of the present invention is as follows: The method for preparing a high-permeability coating is characterized in that the above raw materials are used, and the steps are as follows: S1. Add 5 to 6 parts of deionized water to the penetrant, stir evenly, heat to 50 to 60° C., add acetic acid, adjust to pH=3 to 3.5, then add soap particles and stir evenly to obtain a first mixture, cool to room temperature for use; S2. The aqueous nano-inorganic silicone resin, the remaining deionized water, potassium silicate, and ethylene glycol are mixed and heated to 60 to 70 ° C and kept warm for 100 to 120 minutes to obtain a second mixture; S3. Add the coupling agent, polydimethylsiloxane, and silane-modified aliphatic epoxy resin to the second mixture, stir evenly, and reduce the temperature by 10 to 15 ° C to obtain a third mixture; S4. Add the toughening agent to the third mixed agent, and adjust the pH thereof to 3 to 3.5 with sodium carbonate to obtain the high permeability coating.

[0006] The technical solution of the construction method of the high permeability coating of the present invention is as follows: The construction method of the high permeability coating comprises the following steps: M1. Use 2-3% alum water to irrigate the construction surface; M2. The moisture on the base surface evaporates and the ground is dry; M3. Apply the above-mentioned high-permeability paint and dry it in an environment with a temperature of 20-25°C.

[0007] The beneficial effects of the present invention are: such a preparation method can obtain a coating with high permeability, such a coating has high permeability, and this construction method can obtain a ground with a tight coating structure. DETAILED DESCRIPTION

[0008] The present invention will be further described below in conjunction with the embodiments.

[0009] The raw materials used in the present invention are the following raw materials: Water-based nano inorganic silicone resin, deionized water, potassium silicate, ethylene glycol, toughening agent, 1-2 parts of penetrant, coupling agent, soap particles, polydimethylsiloxane, silane-modified aliphatic epoxy resin, acetic acid, sodium carbonate; wherein: the water-based nano inorganic silicone resin is water-based nano inorganic silicone resin BS-518; The potassium silicate is nano potassium silicate; The toughening agent is a MBS type toughening agent; The penetrant is a composition of sodium dodecyl sulfonate, silane impregnating agent and petroleum calcium sulfonate, and the mass ratio of sodium dodecyl sulfonate, silane impregnating agent and petroleum calcium sulfonate is 3:2:1; The coupling agent is aminosilane coupling agent KH-550; The following table is the ratio table of the raw materials used in each embodiment. Serial number Reagent name First component (kg) Second component (kg) The third component (kg) Fourth component (kg) Fifth component (kg) 1 Water-based nano inorganic silicone resin 40 45 50 40 45 2 Deionized water 30 35 40 30 35 3 Potassium silicate 3 4.5 6 3 4.5 4 Ethylene glycol 3 5 7 7 5 5 Toughening agent 2 2.5 3 3 3 6 Penetrant 1 1.5 2 2 2 7 Coupling agent 1 1.5 2 1 2 8 Soap Granules 1 1.5 2 1 2 9 Dimethicone 2 3 4 4 2 10 Silane modified aliphatic epoxy resin 3 4 5 5 3 11 acetic acid Example A Prepare the coating according to the following process: S1. Add 5 to 6 parts of deionized water to the penetrant, stir evenly, heat to 50 to 60°C, add acetic acid, adjust to pH = 3 to 3.5, then add soap particles and stir evenly to obtain a first mixture, cool to room temperature for use; S2. The aqueous nano-inorganic silicone resin, the remaining deionized water, potassium silicate, and ethylene glycol are mixed and heated to 60 to 70 ° C and kept warm for 100 to 120 minutes to obtain a second mixture; S3. Add the coupling agent, polydimethylsiloxane, and silane-modified aliphatic epoxy resin to the second mixture, stir evenly, and reduce the temperature by 10 to 15 ° C to obtain a third mixture; S4. Add the toughening agent to the third mixed agent, and adjust the pH thereof to 3 to 3.5 with sodium carbonate to obtain the high permeability coating.

[0010] After the coating is obtained, the coating is poured into the roof with gaps. After testing, the coating obtained above has good permeability.

[0011] Among them, the coating obtained with the second component is the best in terms of permeability, that is, it has stronger permeability.

[0012] Example B Instead, repeat Example A above; The difference is that: in step S1, the steps of heating to 50-60°C or adding acetic acid and adjusting to pH=3-3.5 are omitted, and the resulting coating has poor penetration effect and poor durability.

[0013] Instead, repeat Example A above; The difference is that: in S2, the water-based nano inorganic silicone resin, the remaining deionized water, potassium silicate, and ethylene glycol are uniformly mixed at room temperature to obtain a second mixture; The resulting coating is poor in penetration and also poor in durability.

[0014] Instead, repeat Example A above; The difference is that in S4, the toughening agent is added to the third mixed agent, and the coating is obtained without adjusting with sodium carbonate; the obtained coating is poor in penetration effect and durability.

[0015] Example C The construction method of high permeability coating includes the following steps: M1. Use 2-3% alum water to irrigate the construction surface; M2. The moisture on the base surface evaporates and the ground is dry; M3. Apply the high permeability coating obtained in the above Example A and dry it in an environment with a temperature of 20 to 25°C.

[0016] After the above construction, the performance of the roof can be significantly improved, the roof structure can be filled, and the roof is more solid.

[0017] Based on the above embodiment, the difference is: Skip the following steps; M1. Use 2-3% alum water to irrigate the construction surface; M2. The moisture on the base surface evaporates and the ground becomes dry; the paint is directly applied on the roof, and the resulting roof is not good in terms of the firmness of the roof structure and durability.

[0018] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any technician familiar with the profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A high permeability coating, characterized in that: The composition is composed of the following components in proportion by weight: 40-50 parts of water-based nano inorganic silicone resin, 30-40 parts of deionized water, 3-6 parts of potassium silicate, 3-7 parts of ethylene glycol, 2-3 parts of toughening agent, 1-2 parts of penetrant 、 1-2 parts of coupling agent, 1-2 parts of soap particles, 2-4 parts of polydimethylsiloxane, 3-5 parts of silane-modified aliphatic epoxy resin, acetic acid, sodium carbonate; wherein: the water-based nano inorganic silicone resin is water-based nano inorganic silicone resin BS-518; The potassium silicate is nano potassium silicate; The toughening agent is a MBS type toughening agent; The penetrant is a composition of sodium dodecyl sulfonate, silane impregnating agent and petroleum calcium sulfonate, and the mass ratio of sodium dodecyl sulfonate, silane impregnating agent and petroleum calcium sulfonate is 3:2:1; The coupling agent is aminosilane coupling agent KH-550.

2. A method for preparing a high permeability coating, using the raw material of claim 1, characterized in that: The following steps are involved: S1. Add 5 to 6 parts of deionized water to the penetrant, stir evenly, heat to 50 to 60°C, add acetic acid, adjust to pH = 3 to 3.5, then add soap particles and stir evenly to obtain a first mixture, cool to room temperature for use; S2. The aqueous nano-inorganic silicone resin, the remaining deionized water, potassium silicate, and ethylene glycol are mixed and heated to 60 to 70 ° C and kept warm for 100 to 120 minutes to obtain a second mixture; S3. Add the coupling agent, polydimethylsiloxane, and silane-modified aliphatic epoxy resin to the second mixture, stir evenly, and reduce the temperature by 10 to 15 ° C to obtain a third mixture; S4. Add the toughening agent to the third mixed agent, and adjust the pH thereof to 3 to 3.5 with sodium carbonate to obtain the high permeability coating.

3. The construction method of the high permeability coating includes the following steps: M1. Use 2-3% alum water to irrigate the construction surface; M2. The moisture on the base surface evaporates and the ground is dry; M3. Apply this high permeability paint and let it dry in an environment with a temperature of 20 to 25°C.