CN112279596A - Self-peeling waterproof coating and preparation method thereof - Google Patents
Self-peeling waterproof coating and preparation method thereof Download PDFInfo
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- CN112279596A CN112279596A CN202011255884.7A CN202011255884A CN112279596A CN 112279596 A CN112279596 A CN 112279596A CN 202011255884 A CN202011255884 A CN 202011255884A CN 112279596 A CN112279596 A CN 112279596A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
- C04B2111/00508—Cement paints
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Abstract
The invention discloses a self-stripping waterproof coating and a preparation method thereof, belonging to the technical field of water prevention, the invention can not only assist in improving the strength of the coating, especially the crack resistance, but also form a tight water seepage sensing net by pre-embedding a self-stripping net in advance in the coating, once the water seepage phenomenon occurs on the surface of the coating, water absorption fiber rods on the self-stripping net can quickly absorb water and convey the water into a water collection base ball, and then indirectly convey the water to a hydrolysis ball in a trigger tube, the water seepage area on the surface of the coating is impacted from the edge of the self-stripping net by the characteristic that the hydrolysis ball reacts with water to release a large amount of gas, thereby realizing the self-stripping of the water seepage area, and simultaneously, when the gas is released to the outside, the seepage backflow of the water is not easy to continue to permeate, thereby realizing the excision operation similar to 'pathological change parts' and reducing the further erosion of the coating by the water, and technicians can be prompted to repair the patch in time.
Description
Technical Field
The invention relates to the technical field of waterproofing, in particular to a self-stripping waterproof coating and a preparation method thereof.
Background
The waterproof paint is coated on the surface of a building, and a layer of film is formed after chemical reaction among all components, so that the surface of the building is isolated from water, and the waterproof and sealing effects are achieved. The waterproof film formed by curing the waterproof coating has certain extensibility, elastoplasticity, crack resistance, impermeability and weather resistance, and can play roles in waterproofing, seepage prevention and protection.
There are two broad categories of waterproof materials on the market: one is waterproof polyurethane paint. Such materials are generally made from polyurethane and coal tar as raw materials. The volatile tar gas has high toxicity and is not easy to remove, so the volatile tar gas is prohibited to be used in China in 2000. The polyurethane waterproof paint is sold by replacing coal tar with asphalt as raw material. However, when such a coating material is used, it is generally diluted with an organic solvent containing toluene, xylene, etc., and thus it also has toxicity; another class is polymer cement based waterproofing coatings. It is composed of emulsion synthesized by several water-base polymers and high-quality cement mixed with various additives, and the flexibility of polymer (resin) and rigidity of cement are combined into one body, so that it is excellent in impermeability and stability. Its advantages are convenient construction, low cost, short construction period, no poison and environmental protection. Thus, polymer cement-based has become a leading element of the waterproof coating market.
However, after the coating is formed on the base surface, the waterproof coating is difficult to avoid the occurrence of water seepage due to cracks along with the lapse of service time, and then the cracks or the water seepage are difficult to be found, so that the water seepage is more and more serious, the integral waterproofness of the coating is influenced, and the service life of the waterproof coating is seriously shortened.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a self-peeling waterproof coating and a preparation method thereof, the self-peeling net can be pre-embedded in the coating in advance, so that the strength, particularly the anti-cracking performance, of the coating can be improved in an auxiliary manner, a tight water seepage sensing net can be formed at the same time, once the water seepage phenomenon occurs on the surface of the coating, water absorption fiber rods on the self-peeling net can quickly absorb water and convey the water into a water collection base ball and then indirectly convey the water into a hydrolysis ball in a trigger pipe, the water seepage area on the surface of the coating is impacted from the edge of the self-peeling net by the characteristic that the hydrolysis ball reacts with water to release a large amount of gas, the self peeling of the water seepage area is realized, the seepage water can not easily flow back to continue to permeate when the gas is released to the outside, in addition, the heat released during the reaction of, the residual small amount of the penetrating water is promoted to evaporate, thereby realizing the similar excision operation to the 'pathological change part', reducing the further erosion of the penetrating water to the coating, and prompting the technical personnel to repair in time.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
The self-peeling waterproof coating comprises a coating body and a plurality of self-peeling nets embedded in the coating body, wherein the coating body comprises the following raw materials in parts by weight: 20-30 parts of silicone-acrylic emulsion, 30-50 parts of Portland cement, 0.8-2 parts of bistetradecanol ester, 1-2 parts of epoxy butyl oleate, 2-3 parts of inositol, 5-10 parts of talcum powder, 6-8 parts of fly ash, 0.5-1.5 parts of hydroxyethyl cellulose, 0.5-2 parts of dispersing agent, 1-3 parts of defoaming agent, 2-4 parts of filling agent, 2-4 parts of film forming agent and 15-25 parts of deionized water.
Further, the dispersing agent is a sodium metaphosphate dispersing agent, the filler is one or more of kaolin, lithopone or aluminum oxide, the defoaming agent is at least one of an organic silicon defoaming agent and a polymer defoaming agent, and the film forming agent is 2,2, 4-trimethyl-1, 3-pentanediol monoisobutyrate.
Further, from peeling off the net including catchmenting base ball, many fibrous pole and the trigger tube of absorbing water, trigger tube annular array connects in the outer end of catchmenting base ball, and the trigger tube is linked together with catchmenting base ball, the same annular array of fibrous pole that absorbs water is inlayed and is connected in the upper end of catchmenting base ball, and the fibrous pole that absorbs water runs through catchmenting base ball and extend to the inboard, and catchment base ball plays concentrated infiltration water's effect, and the fibrous pole that absorbs water then plays the perception and absorbs the effect of infiltration water, and the trigger tube then can utilize the infiltration water to trigger the action of peeling off to the infiltration region.
Furthermore, the trigger tube is kept away from catchment base ball one end and has been seted up the venthole, the parcel in the venthole outside has waterproof ventilated membrane, and waterproof ventilated membrane can block that moisture directly gets into from the trigger tube in the coating, can not influence gaseous leakage simultaneously.
Further, the inner of the water absorption fiber rod is connected with the water delivery transfer ball, the water delivery transfer ball is close to one end each other and is embedded and connected with the ferrite magnetic block, the water delivery transfer ball plays the effect of transfer moisture, the ferrite magnetic block can utilize magnetic attraction to make a plurality of water delivery transfer balls adsorb each other under normal condition together, avoid absorbing the moisture in the coating in advance and trigger the action of trigger tube.
Furthermore, a plurality of hydrolysis balls which are uniformly distributed are arranged in the trigger pipe, the hydrolysis balls are inserted with stripping-assisting wires, the stripping-assisting wires penetrate through the trigger pipe and extend to the upper side, a water-feeding bridge rod is horizontally arranged in the trigger pipe, the water-feeding bridge rod sequentially penetrates through the hydrolysis balls and extends into the water-collecting base ball and does not contact with the water-conveying transfer ball, the hydrolysis balls react after contacting with water and release a large amount of heat and gas, the stripping-assisting wires are forced to be subjected to high-frequency impact in a water-seepage area by the aid of impact force of the gas, stripping of the water-seepage area is accelerated, and the water-feeding bridge rod contacts with the water-conveying transfer ball after a coating is formed to achieve the effect of conveying water to the hydrolysis balls.
Furthermore, the hydrolysis ball is prepared by mixing an effervescent disintegrant and an inorganic pigment, the mixing mass ratio of the effervescent disintegrant to the inorganic pigment is 1:0.2-0.5, the hydrolysis ball can release gas after being disintegrated, and the inorganic pigment can change the color of the self-stripping net after being melted, so that the hydrolysis ball is favorable for visually prompting technicians to repair, and preferably, the red pigment and other relatively striking pigments are adopted.
Further, it includes water guide fibre pole and from the needle of linking to continue the water bridge pole, and connect in the water guide fibre pole from linking the needle and be close to the one end of water transfer ball in the water transfer, center department inlays in the water transfer ball and is connected with interim reservoir, interim reservoir intussuseption is filled with the binder, and after the water transfer ball removes from linking the needle relatively insert it in and puncture interim reservoir, the binder of interim reservoir will be fixed from linking the needle rapidly, forms the permanent connection between water guide fibre pole and the water transfer ball, avoids conveying the water transfer ball in the ferrite block resume magnetism after and adsorbs together again.
Furthermore, the water absorption fiber rod is made of elastic water absorption materials, the coverage area of the water absorption fiber rod is consistent with that of the trigger pipe, the water delivery rotary ball and the water supply bridge rod are made of water guide materials, and the ferrite magnet block is a ferrite magnet.
A preparation method of a self-peeling waterproof coating comprises the following steps:
s1, mixing the raw materials of the coating body to prepare a coating, and equally dividing the coating into two parts for later use;
s2, spraying one part of the mixture on the surface of the substrate, heating at 40-60 deg.C for 3-5min to micro-cure to form a base layer, and coating the base layer at a thickness of 1/10 cm2The self-stripping net is uniformly pasted on the base layer according to the density;
and S3, continuously spraying the rest part of the coating before the base layer is not completely cured, and heating at 80-100 ℃ for 10-20min until the coating is completely cured.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) the scheme can help to improve the strength of the coating, particularly the anti-cracking performance, and form a tight water seepage sensing net at the same time by pre-embedding the self-stripping net in the coating in advance, once the water seepage phenomenon appears on the surface of the coating, the water absorption fiber rods on the self-stripping net can quickly absorb water and convey the water into the water collection base balls, and then the water collection base balls are indirectly conveyed to the hydrolysis balls in the trigger tubes, and the water seepage areas on the surface of the coating are impacted from the edges of the self-stripping net by virtue of the characteristic that the hydrolysis balls react with water to release a large amount of gas, so that the self-stripping of the water seepage areas is realized, meanwhile, the seepage water can not easily flow back to continue to permeate when the gas is released to the outside, in addition, the heat released by the reaction of the hydrolysis balls can heat the coating, so that the residual small amount of seepage water, further erosion of the coating by the permeated water is reduced, and technicians can be prompted to perform the repair in time.
(2) The net of peeling off certainly includes the base ball that catchments, many fibrous poles that absorb water and trigger tube, trigger tube annular array connects in the outer end of the base ball that catchments, and trigger tube and the base ball that catchments are linked together, the same annular array of fibrous pole that absorbs water inlays the upper end of connecting in the base ball that catchments, and the fibrous pole that absorbs water runs through the base ball that catchments and extends to the inboard, the base ball that catchments plays concentrated infiltration water's effect, the fibrous pole that absorbs water then plays the perception and absorbs the effect of infiltration water, trigger tube then can utilize the infiltration water to trigger the action of peeling off to the infiltration region.
(3) The trigger tube is kept away from catchment base ball one end and has been seted up the venthole, and the venthole outside parcel has waterproof ventilated membrane, and waterproof ventilated membrane can block in the coating moisture directly to get into from the trigger tube, can not influence gaseous leakage simultaneously.
(4) The inner of the water absorption fiber rod is connected with a water transfer ball, the water transfer ball is close to one end and is embedded with a ferrite block, the water transfer ball plays a role in transferring moisture, the ferrite block can utilize magnetic attraction to enable the water transfer balls to be adsorbed together in a plurality of water transfers under a normal state, and the moisture in paint is prevented from being absorbed in advance to trigger the action of the trigger tube.
(5) The water-feeding bridge rod sequentially penetrates through the plurality of hydrolysis balls and extends into the water collecting base ball and is not contacted with the water transfer ball, the hydrolysis balls react and release a large amount of heat and gas after contacting with water, the high-frequency impact of the stripping-assisting wires in a water seepage area is forced by the impact force of the gas, the stripping of the water seepage area is accelerated, and the water-feeding bridge rod is contacted with the water transfer ball after a coating is formed to play a role in conveying water to the hydrolysis balls.
(6) The hydrolysis ball is prepared by mixing an effervescent disintegrant and an inorganic pigment, the mixing mass ratio of the effervescent disintegrant to the inorganic pigment is 1:0.2-0.5, the hydrolysis ball can release gas after being disintegrated, and meanwhile, the inorganic pigment can change the color of a self-stripping net after being melted, so that the hydrolysis ball is favorable for visually prompting technicians to repair, and preferably, red pigment and other relatively striking pigments are adopted.
(7) The water feeding bridge rod comprises a water guide fiber rod and a self-connection needle, the self-connection needle is connected to one end, close to the water delivery transfer ball, of the water guide fiber rod, a temporary liquid storage bag is connected to the center of the water delivery transfer ball in an embedded mode, a bonding agent is filled in the temporary liquid storage bag, the self-connection needle is inserted into the water delivery transfer ball relatively after the water delivery transfer ball moves, the temporary liquid storage bag is punctured, the bonding agent of the temporary liquid storage bag can fix the self-connection needle rapidly, permanent connection between the water guide fiber rod and the water delivery transfer ball is formed, and the phenomenon that the water delivery transfer ball is adsorbed together again after the ferrite block recovers magnetism is avoided.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the self-stripping web of the present invention;
FIG. 3 is a schematic view of the self-peeling web in a normal state;
FIG. 4 is a schematic structural view of a self-exfoliating web of the present invention in a heated state;
FIG. 5 is a schematic structural view of a water transfer ball of the present invention;
FIG. 6 is a schematic structural view of the coating body of the present invention in a peeled state.
The reference numbers in the figures illustrate:
1 water collection base ball, 2 water absorption fiber rod, 3 trigger tube, 4 waterproof ventilated membrane, 5 hydrolysis ball, 6 peeling-assistant wire, 7 water-feeding bridge rod, 71 water guide fiber rod, 72 self-connecting needle, 8 water transmission rotary ball, 9 ferrite block and 10 temporary reservoir.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1, a self-peeling waterproof coating includes a coating body and a plurality of self-peeling nets embedded in the coating body, wherein the coating body includes the following raw materials by weight: 20 parts of silicone-acrylic emulsion, 30 parts of Portland cement, 0.8 part of ditetradecanol ester, 1 part of epoxy butyl oleate, 2 parts of inositol, 5 parts of talcum powder, 6 parts of fly ash, 0.5 part of hydroxyethyl cellulose, 0.5 part of dispersing agent, 1 part of defoaming agent, 2 parts of filling agent, 2 parts of film forming agent and 15 parts of deionized water.
The dispersing agent is sodium metaphosphate, the filling agent is one or more of kaolin, lithopone or alumina, the defoaming agent is at least one of an organic silicon defoaming agent and a polymer defoaming agent, and the film forming agent is 2,2, 4-trimethyl-1, 3-pentanediol monoisobutyrate.
Referring to fig. 2, the self-peeling net comprises a water collecting base ball 1, a plurality of water absorbing fiber rods 2 and a trigger tube 3, wherein the trigger tube 3 is connected to the outer end of the water collecting base ball 1 in an annular array manner, the trigger tube 3 is communicated with the water collecting base ball 1, the water absorbing fiber rods 2 are also connected to the upper end of the water collecting base ball 1 in an embedded manner in an annular array manner, the water absorbing fiber rods 2 penetrate through the water collecting base ball 1 and extend to the inner side, the water collecting base ball 1 plays a role in concentrating seepage, the water absorbing fiber rods 2 play a role in sensing and absorbing seepage, and the trigger tube 3 can trigger the peeling action on a seepage area by utilizing the seepage.
Referring to fig. 3-4, the inner end of the water-absorbing fiber rod 2 is connected with a water transfer ball 8, one end of the water transfer ball 8, which is close to each other, is embedded with a ferrite magnet 9, the water transfer ball 8 plays a role in transferring water, and the ferrite magnet 9 can make the water transfer balls 8 in the water transfer balls adsorb each other by using magnetic attraction in a normal state, so as to avoid absorbing water in the paint in advance to trigger the action of the trigger tube 3.
The trigger tube 3 is internally provided with a plurality of hydrolysis balls 5 which are uniformly distributed, the hydrolysis balls 5 are internally inserted with stripping-assisting wires 6, the stripping-assisting wires 6 penetrate through the trigger tube 3 and extend to the upper side, a water-feeding bridge rod 7 is horizontally arranged in the trigger tube 3, the water-feeding bridge rod 7 sequentially penetrates through the hydrolysis balls 5 and extends into the water-collecting base ball 1 and does not contact with the water-conveying rotary ball 8, the hydrolysis balls 5 react after contacting with moisture and release a large amount of heat and gas, the stripping-assisting wires 6 are forced to have high-frequency impact in a water seepage area by the impact force of the gas, the water seepage area is accelerated to strip, and the water-feeding bridge rod 7 contacts with the water-conveying rotary ball 8 after being formed by a coating to play a role in conveying the water to the hydrolysis balls 5.
The hydrolysis ball 5 is prepared by mixing an effervescent disintegrant and an inorganic pigment, the mixing mass ratio of the effervescent disintegrant to the inorganic pigment is 1:0.2-0.5, the hydrolysis ball 5 can release gas after being disintegrated, and meanwhile, the inorganic pigment can change the color of a self-stripping net after being melted, so that the hydrolysis ball is favorable for visually prompting technicians to repair, and red pigment and other relatively striking pigments are preferably adopted.
Referring to fig. 5, the water feeding bridge rod 7 includes a water guiding fiber rod 71 and a self-connecting needle 72, the self-connecting needle 72 is connected to one end of the water guiding fiber rod 71 close to the water delivery transfer ball 8, the temporary reservoir 10 is embedded and connected to the center of the water delivery transfer ball 8, the temporary reservoir 10 is filled with a binder, the self-connecting needle 72 is relatively inserted into the water delivery transfer ball 8 after the water delivery transfer ball 8 moves and punctures the temporary reservoir 10, the binder of the temporary reservoir 10 can rapidly fix the self-connecting needle 72, a permanent connection between the water guiding fiber rod 71 and the water delivery transfer ball 8 is formed, and the water delivery transfer ball 8 is prevented from being re-adsorbed together after the ferrite block 9 recovers magnetism.
The water absorption fiber rod 2 is made of elastic water absorption materials, the coverage area of the water absorption fiber rod 2 is consistent with that of the trigger tube 3, the water delivery rotary ball 8 and the water supply bridge rod 7 are made of water guide materials, and the ferrite magnetic block 9 is a ferrite magnet.
A preparation method of a self-peeling waterproof coating comprises the following steps:
s1, mixing the raw materials of the coating body to prepare a coating, and equally dividing the coating into two parts for later use;
s2, spraying one part of the mixture on the surface of the substrate, heating at 40 ℃ for 3min until micro-curing to form a base layer, and coating the base layer with the thickness of 1 piece/10 cm2The self-stripping net is uniformly pasted on the base layer according to the density;
and S3, continuously spraying the rest part of the coating before the base layer is not completely cured, and heating at 80 ℃ for 10min to completely cure after the spraying is finished.
It is worth noting that the ferrite magnetic block 9 is made of ferrite magnet, the working temperature is 80-100 ℃, the magnetism is rapidly weakened when the working temperature is over the temperature, but the magnetism is recovered after the temperature is reduced, so that the magnetism of the ferrite magnetic block 9 is temporarily weakened when the coating on the surface layer is heated and cured, the water transfer ball 8 is reset to be in contact with the water supply bridge rod 7 under the elastic action of the water absorption fiber rod 2, the permanent connection is further realized, and the water transfer ball 8 cannot be adsorbed again even after the magnetism of the ferrite magnetic block 9 is recovered.
Example 2:
referring to fig. 1, a self-peeling waterproof coating includes a coating body and a plurality of self-peeling nets embedded in the coating body, wherein the coating body includes the following raw materials by weight: 25 parts of silicone-acrylic emulsion, 40 parts of Portland cement, 1.5 parts of ditetradecanol ester, 1.5 parts of epoxy butyl oleate, 2.5 parts of inositol, 8 parts of talcum powder, 7 parts of fly ash, 1 part of hydroxyethyl cellulose, 1 part of dispersing agent, 2 parts of defoaming agent, 3 parts of filling agent, 3 parts of film forming agent and 20 parts of deionized water.
A preparation method of a self-peeling waterproof coating comprises the following steps:
s1, mixing the raw materials of the coating body to prepare a coating, and equally dividing the coating into two parts for later use;
s2, spraying one part of the mixture on the surface of the substrate, heating at 50 ℃ for 4min until micro-curing to form a base layer, and coating the base layer with the thickness of 1 piece/10 cm2The self-stripping net is uniformly pasted on the base layer according to the density;
and S3, continuously spraying the rest part of the coating before the base layer is not completely cured, and heating at 90 ℃ for 15min to completely cure after the spraying is finished.
The remainder was in accordance with example 1.
Example 3:
referring to fig. 1, a self-peeling waterproof coating includes a coating body and a plurality of self-peeling nets embedded in the coating body, wherein the coating body includes the following raw materials by weight: 30 parts of silicone-acrylic emulsion, 50 parts of Portland cement, 2 parts of ditetradecanol ester, 2 parts of epoxy butyl oleate, 3 parts of inositol, 10 parts of talcum powder, 8 parts of fly ash, 1.5 parts of hydroxyethyl cellulose, 2 parts of dispersing agent, 3 parts of defoaming agent, 4 parts of filling agent, 4 parts of film forming agent and 25 parts of deionized water.
A preparation method of a self-peeling waterproof coating comprises the following steps:
s1, mixing the raw materials of the coating body to prepare a coating, and equally dividing the coating into two parts for later use;
s2, spraying one part of the mixture on the surface of the substrate, heating at 60 ℃ for 5min until micro-curing to form a base layer, and coating the base layer with the thickness of 1 piece/10 cm2The self-stripping net is uniformly pasted on the base layer according to the density;
and S3, continuously spraying the rest part of the coating before the base layer is not completely cured, and heating at 100 ℃ for 20min to completely cure after the spraying is finished.
The remainder was in accordance with example 1.
The invention can pre-embed the self-peeling net in the coating in advance, which not only can assist to improve the strength of the coating, especially the anti-cracking performance, but also can form a tight water seepage sensing net, once the water seepage phenomenon appears on the surface of the coating, the water absorption fiber rod 2 on the self-peeling net can rapidly absorb the water and transmit the water to the water collection base ball 1, and then indirectly transmit the water to the hydrolysis ball 5 in the trigger tube 3, the water seepage area on the surface of the coating is impacted from the edge of the self-peeling net by the characteristic that the hydrolysis ball 5 reacts with the water to release a large amount of gas, so as to realize the self-peeling of the water seepage area, please refer to figure 6, meanwhile, the gas can lead the seepage water to flow back and not to continue to permeate easily when being released to the outside, in addition, the heat released by the hydrolysis ball 5 during the reaction can heat the coating, promote the residual little seepage water to evaporate, thereby, further erosion of the coating by the permeated water is reduced, and technicians can be prompted to perform the repair in time.
The above are merely preferred embodiments of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (10)
1. A self-peeling waterproof coating characterized by: the coating comprises a coating body and a plurality of self-peeling nets embedded in the coating body, wherein the coating body comprises the following raw materials in parts by weight: 20-30 parts of silicone-acrylic emulsion, 30-50 parts of Portland cement, 0.8-2 parts of bistetradecanol ester, 1-2 parts of epoxy butyl oleate, 2-3 parts of inositol, 5-10 parts of talcum powder, 6-8 parts of fly ash, 0.5-1.5 parts of hydroxyethyl cellulose, 0.5-2 parts of dispersing agent, 1-3 parts of defoaming agent, 2-4 parts of filling agent, 2-4 parts of film forming agent and 15-25 parts of deionized water.
2. The self-peeling water-repellent coating according to claim 1, wherein: the dispersing agent is sodium metaphosphate, the filling agent is one or more of kaolin, lithopone or aluminum oxide, the defoaming agent is at least one of an organic silicon defoaming agent and a polymer defoaming agent, and the film forming agent is 2,2, 4-trimethyl-1, 3-pentanediol monoisobutyrate.
3. The self-peeling waterproof coating and the preparation method thereof as claimed in claim 1, wherein: the net of peeling off certainly includes catchment base ball (1), many fibrous pole (2) and trigger tube (3) of absorbing water, trigger tube (3) annular array is connected in the outer end of catchment base ball (1), and trigger tube (3) are linked together with catchment base ball (1), fibrous pole (2) of absorbing water is the same annular array inlay to be connected in the upper end of catchment base ball (1), and fibrous pole (2) of absorbing water runs through catchment base ball (1) and extends to the inboard.
4. A self-peeling waterproof coating according to claim 3, characterized in that: trigger tube (3) are kept away from catchment base ball (1) one end and have been seted up the venthole, the outside parcel of venthole has waterproof ventilated membrane (4).
5. A self-peeling waterproof coating according to claim 3, characterized in that: the inner end of the water absorption fiber rod (2) is connected with an in-water transmission rotating ball (8), and one end, close to each other, of the in-water transmission rotating ball (8) is connected with a ferrite block (9) in an embedded mode.
6. A self-peeling waterproof coating according to claim 3, characterized in that: be equipped with a plurality of evenly distributed's ball (5) of hydrolysising in trigger tube (3), it has the help to peel off silk (6) to hydrolyze to peg graft in ball (5), and helps to peel off silk (6) and run through trigger tube (3) and extend to the upside, still the level is equipped with one in trigger tube (3) and continues water bridge pole (7), and continues water bridge pole (7) and run through a plurality of balls of hydrolysising (5) in proper order and extend to and change ball (8) contact in catchmenting base ball (1) and the water delivery.
7. The self-peeling water-repellent coating according to claim 6, wherein: the hydrolysis ball (5) is prepared by mixing an effervescent disintegrant and an inorganic pigment, and the mixing mass ratio of the effervescent disintegrant to the inorganic pigment is 1: 0.2-0.5.
8. The self-peeling water-repellent coating according to claim 6, wherein: the water feeding bridge rod (7) comprises a water guide fiber rod (71) and a self-connection needle (72), the self-connection needle (72) is connected to one end, close to the water delivery rotating ball (8), of the water guide fiber rod (71), a temporary liquid storage bag (10) is connected to the center of the water delivery rotating ball (8) in an embedded mode, and the temporary liquid storage bag (10) is filled with a bonding agent.
9. The self-peeling water-repellent coating according to claim 6, wherein: the water absorption fiber rod (2) is made of elastic water absorption materials, the coverage area of the water absorption fiber rod (2) is kept consistent with that of the trigger tube (3), the water transmission rotary ball (8) and the water supply bridge rod (7) are made of water guide materials, and the ferrite magnet block (9) is a ferrite magnet.
10. The method for producing a self-peeling water-repellent coating according to any one of claims 1 to 9, wherein: the method comprises the following steps:
s1, mixing the raw materials of the coating body to prepare a coating, and equally dividing the coating into two parts for later use;
s2, spraying one part of the self-peeling net on the surface of the substrate, heating at 40-60 ℃ for 3-5min until micro-curing to form a base layer, and uniformly sticking the self-peeling net on the base layer according to the density of 1/10 cm 2;
and S3, continuously spraying the rest part of the coating before the base layer is not completely cured, and heating at 80-100 ℃ for 10-20min until the coating is completely cured.
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| CN202011255884.7A CN112279596A (en) | 2020-11-11 | 2020-11-11 | Self-peeling waterproof coating and preparation method thereof |
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| CN202011255884.7A CN112279596A (en) | 2020-11-11 | 2020-11-11 | Self-peeling waterproof coating and preparation method thereof |
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| CN113463859A (en) * | 2021-07-02 | 2021-10-01 | 徐州京安新型建材科技有限公司 | Construction method of self-dropping type building waterproof outer wall |
| CN113682028A (en) * | 2021-07-01 | 2021-11-23 | 翟义恒 | Preparation method of laminated sandwich type building composite waterproof roll |
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- 2020-11-11 CN CN202011255884.7A patent/CN112279596A/en not_active Withdrawn
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| CN113400753A (en) * | 2021-05-17 | 2021-09-17 | 李素文 | Strong adsorbability PET membrane of sclerosis degree |
| CN113682028A (en) * | 2021-07-01 | 2021-11-23 | 翟义恒 | Preparation method of laminated sandwich type building composite waterproof roll |
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| CN113463859A (en) * | 2021-07-02 | 2021-10-01 | 徐州京安新型建材科技有限公司 | Construction method of self-dropping type building waterproof outer wall |
| CN113463859B (en) * | 2021-07-02 | 2022-08-02 | 徐州京安新型建材科技有限公司 | Construction method of self-dropping type building waterproof outer wall |
| CN113273753A (en) * | 2021-07-19 | 2021-08-20 | 南通佳爱纺织品有限公司 | Sunshade fishing cap with can replace mosquito repellent cartridge bag |
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