WO2015035840A1

WO2015035840A1 - Three-in-one mosaic adhesive for pasting, seam-filling and water-resisting

Info

Publication number: WO2015035840A1
Application number: PCT/CN2014/084132
Authority: WO
Inventors: 董峰亮; 邓德安; 方楚燕; 徐英; 陈激扬; 胡程; 丁天华; 梁至柔; 周碧平; 万德刚; 严昌俊; 阿那; 陆小勇; 陈学静; 薛静
Original assignee: 德高（广州）建材有限公司
Priority date: 2013-09-12
Filing date: 2014-08-11
Publication date: 2015-03-19
Also published as: CN103482930A; CN103482930B

Abstract

A three-in-one mosaic adhesive for pasting, seam-filling and water-resisting. The three-in-one mosaic adhesive for pasting, seam-filling and water-resisting is a bi-component material, wherein component A comprises cement, a quartz powder, an emulsion powder with redispersibility, a cellulose ether, a super plasticizer, a water repellent, lignin fibres, an anti-foaming agent and a pigment added as needed, and component B comprises an emulsion, water, an anti-foaming agent and a preservative.

Description

Description Book Paste joint waterproof three-in-one mosaic adhesive Technical field

The invention relates to an adhesive, in particular to a three-in-one mosaic adhesive for gluing and sealing, which belongs to the technical field of bonding materials in the construction industry.

Background technique

Mosaics, also known as mosaic tiles, were originally made up of small, tiled tiles arranged in a block and are now widely used for partial decoration of exterior or interior walls. In recent years, there have been reports of accidents in which the mosaic of the exterior wall of the building has fallen off and there are serious safety hazards. Once in the rainy season, when the wind and rain, the mosaic is more serious. In addition, there are a large number of facts that it is more common for buildings with mosaic finishes on the exterior wall to leak than the exterior walls of buildings with other decorative finishes, and if the outer wall seeps, it will be difficult to repair. The maintenance cost of the inner wall alone is high, and the effect is not good. It can be said that once the outer wall sees water seepage, it is impossible to judge the water seepage point, and only a large area can be removed to solve the problem. Therefore, the water seepage of the outer wall and the falling off of the facing bricks become a common problem of the outer wall of the building.

The exterior mosaic finish system is more complex, including the base layer, screed, waterproof layer, adhesive layer, mosque finish, caulking material and so on. Careful analysis of the reasons can be found, the reasons for the leakage of the external wall include: the quality of the waterproof layer is not made or the quality of the waterproof material is not good; the quality of the mosaic paving or the adhesive material is poor, not full, causing partial separation of the mosaic and the pasting material, mosaic and The gap between the bonding materials is easy to form a water storage container; the filling of the bricks is not dense or the quality of the caulking material is not good, cracks are generated, and rainwater seeps in from the cracks, causing water to accumulate, thereby causing leakage. The reasons for the outer wall mosaic hollow drum include: The waterproof layer is incompatible with the adhesive material, resulting in peeling; the adhesive material has insufficient adhesive force, and the glass mosaic is not effectively adhered to such a low water absorption tile; the joint filler material is insufficiently flexible and cannot be effectively effective. The stress generated by the external environment such as absorption of thermal expansion and contraction causes the mosaic to fall off and the like. In addition, due to the difference in waterproof materials, adhesive materials, and caulking materials, the construction site should be separately waterproof, mosaic, and caulked, resulting in complicated processes, long construction period, difficult construction process, and easy cross-construction to cause damage. All of the above are the causes of leakage and bricks on the outer wall.

Adhesive related products for the simultaneous application of tile paste joint filling have been reported. For example, the invention patent CN 1024235659 B discloses a tile bonded joint integrated mortar, the components thereof including cement, quartz sand, fly ash powder, sodium bentonite, cellulose ether, dispersible polymer powder, water repellent, silicon Micronized powder, thixotropic lubricant, early strength agent and pigments as needed. This product is designed to solve traditional mortar tiling The problem of difficulty in cleaning after the instructions, the effect of color difference after jointing on the aesthetics of the exterior finish of the building, the problem of affecting the quality of the project, such as empty drums, cracking, and pan-alkali, after tiling, and the use of polluting environment in the project, It can save construction technology and improve construction efficiency. CN 103011731 A discloses a tile adhesive and caulking adhesive, the components of which are cement, filler, dispersible polymer powder, cellulose ether, early strength agent, thixotropic lubricant, lignocellulose, water repellent , anti-panergic agent, anti-mold agent, dispersant. The disclosed dual-purpose adhesive is required to separately prepare different adhesives for pasting and caulking of existing ceramic tiles. Since the adhesive for bonding and the adhesive product for sealing are different, the separate ingredients may cause problems of duplication of work and waste of materials. An adhesive that can be used for pasting and caulking is provided.

From the existing component weight ratio formulation of the existing paste-and-sealing integrated product for ceramic tile, it is only suitable for the traditional large-sized tile, but when used for the mosaic material, due to the special structure of the mosaic and the mosaic complex Exterior wall finish systems, such products for traditional tiles do not meet the requirements for waterproofing, flexibility, and adhesion of mosaic adhesives. At present, there is no report on the mosaic adhesive which has three functions of sticking, caulking and waterproofing.

Summary of the invention

The object of the present invention is to provide a three-in-one mosaic adhesive having a paste, caulking and waterproof function, wherein the carboxylated styrene-butadiene latex emulsion in the three-in-one mosaic adhesive formulation can be quickly formed evenly after being mechanically mixed with other components. The paste-like stable glue can be quickly sprayed by the airless sprayer to achieve the integrated construction of pasting, caulking and waterproofing, simplifying the process, shortening the construction period and reducing the construction difficulty. At the same time, the mosaic is used outside. When the wall is decorated, it can be realized. 1. Provide a waterproof layer to reduce the leakage of the outer wall caused by the lack of waterproof layer or waterproof material, and cause the mosaic to fall off. 2. For the mosaic characteristics, improve the adhesion of the bonding material and The compatibility with the waterproof layer reduces the lack of adhesion or the incompatibility of the bonding material with the waterproof layer, resulting in the hollowing of the mosaic and the peeling and falling off due to the empty drum; 3. Improving the flexibility and quality of the bonding material, To reduce the loss of mosaic and the quality of the caulking material caused by the stress changes caused by the external environment when used for caulking Good cracking and water seepage.

In order to solve the above problems, the technical solution adopted by the present invention is as follows: A paste joint waterproof three-in-one mosaic adhesive consists of two components A and B, and the weight fractions of each material in the A and B components are as follows: Component

Cement 300-600 parts

Quartz powder 250-600 parts Description Book redispersible latex powder 3-30 parts

Cellulose ether 0.5-5 parts

Superplasticizer 0.5-4 parts

Water repellent 0.3-5 parts

Lignin fiber 0.5-10 parts

Defoamer 0.5-10 parts

0-30 parts of pigment,

Component B

Emulsion 200-500 parts

Water 400-800 parts

Defoamer 0.5-10 parts

Preservative 0.5-10 parts;

Wherein the emulsion is a carboxylated styrene butadiene latex, that is, an anionic water-based emulsion formed by a copolymer of styrene and butadiene

liquid.

The carboxylated styrene-butadiene latex emulsion has a solid content of 50-52%, a pH of 7.8-10, a viscosity of 35-150 mPa·s at 25 ° C, and a glass transition temperature Tg of 13 °C.

The carboxylated styrene-butadiene latex and the other components of the A and B components are mechanically mixed to form a stable paste-like stable glue, which can be quickly sprayed on the working surface by an airless spraying machine, and the uniform paste formed The fineness of the stable mortar is controlled to not exceed 100 mesh, the viscosity range of the glue is controlled at 8000-12000 mPa·s, the fluidity of the glue is controlled at 80-110 mm, and the operable time is controlled at 2-3 hours.

The cement is one of ordinary Portland cement or white Portland cement, and the strength rating is required to be 42.5 or 42.5R or 52.5.

The redispersible latex powder is an ethylene-vinyl acetate copolymer latex powder or an acrylic latex powder. The cellulose ether is hydroxyethyl methyl cellulose ether or hydroxypropyl methyl cellulose ether having a viscosity of 500 to 1000 OPa·s.

The superplasticizer is a polycarboxylic acid-based superplasticizer or a naphthalenesulfonate superplasticizer.

The water repellent is calcium stearate or zinc stearate.

The antifoaming agent is a silicone antifoaming agent or a liquid hydrocarbon, polyethylene glycol and amorphous two The defoaming agent is a mixture of cerium oxide as a main component; the antifoaming agent in the A component and the B component may be selected from the same or different defoaming agents.

The preservative is preferably an efficient broad-spectrum bactericide having an isothiazolinone dispersion as an active ingredient.

The construction method of the paste joint waterproof three-in-one mosaic adhesive of the invention comprises the following steps: (1) Preparation of the adhesive: respectively, the materials of the A and B components are respectively weighed according to the following formula

Component A

Cement 300-600 parts

Quartz powder 250-600 parts

Redispersible latex powder 3-30 parts

Cellulose ether 0.5-5 parts

Superplasticizer 0.5-4 parts

Water repellent 0.3-5 parts

Lignin fiber 0.5-10 parts

Defoamer 0.5-10 parts

0-30 parts of pigment,

Component B

Emulsion 200-500 parts

Water 400-800 parts

Defoamer 0.5-10 parts

Preservative 0.5-10 parts,

The component A material is placed in a high-speed disperser and stirred for 2-3 minutes. The mixture is uniformly mixed to obtain a powder mixture. The component B material is placed in a liquid mixer and stirred for 2-3 minutes. The mixture is uniformly mixed to obtain a liquid mixture, and then Powder mixture and liquid mixture 1: 0.25 ~ 0.3 mass ratio, first pour the liquid mixture into the barrel container, then slowly pour the powder mixture, stir with an electric mixer for 3-5 minutes to form a paste The glue is allowed to stand for 2-3 minutes and then stirred a little to obtain the adhesive glue;

(2) Waterproof spraying: The adhesive glue prepared by the step (1) is used in the airless spraying machine, the spraying machine pressure is 230kg, the flow rate is 8.3-15L, the conveying pipe diameter is 3/8 inch, the nozzle size is 0.04 inch, the gun is shot. The speed is controlled at lm/s, the thickness of the spray is controlled at 0.5-lmm for rapid waterproof spraying operation, and after about 1.5-2.5 hours after waterproof spraying, the joint construction of paste and joint is carried out; Instruction manual

(3) Paste and joint filling construction: The adhesive glue prepared by the step (1) is used in the airless spraying machine, with a nozzle size of 0.042 inches, a gun speed of 0.3-0.6 m/s, and an adhesive layer thickness of 1.5-2.5. Mm is sprayed quickly. When the spray area is 2-4m ² , the mosaic is laid on the adhesive layer, and the glue is squeezed out in the mosaic brick joint. The sponge is used for the first time, and the cleaning is performed after 2 hours. After the second cleaning, the integrated construction of pasting and caulking is completed.

The preferred group distribution ratio of the adhesive of the present invention is as follows:

Component A

Cement 400-500 parts

Quartz powder 350-500 servings

Redispersible latex powder 8-20 parts

Cellulose ether 1.5-4 parts

Superplasticizer 1.5-3 parts

Water repellent 1.3-4 parts

Lignin fiber 2.5-8 parts

Defoamer 2.5-8 parts

Pigment 0-25 parts

Component B

Emulsion 250-400 parts

450-700 parts of water

Defoamer 1.5-8 parts

Preservative 1.5-8 parts.

The quartz powder is preferably white quartz powder having a specification of 100-400 mesh.

The lignin fibers are preferably lignocellulose having an average length of from 300 to 500 um.

The pigment is an iron oxide-based inorganic pigment, which may or may not be added depending on the construction demand.

The paste joint waterproof three-in-one mosaic adhesive of the invention is prepared by the following method:

(1) Accurately weigh the materials of component A according to the formula, and put cement, quartz powder, redispersible latex powder, cellulose ether, superplasticizer, water repellent, lignin fiber, defoamer, pigment Into a high-speed disperser, stir for 2-3 minutes, until the mixture is even, to obtain a powder mixture;

(2) Accurately weigh the materials of component B according to the formula, and pour the emulsion, water, defoamer and preservative into the liquid. In the book mixer, stir for 2-3 minutes until the mixture is evenly mixed to obtain a liquid mixture;

(3) During the construction, the powder mixture and the liquid mixture are mixed at a mass ratio of 1:0.25-0.3, specifically, the liquid mixture is first poured into the barrel container, and then the powder mixture is slowly poured. At the same time, fully mix with electric mixer, stir for 3-5 minutes to form a paste glue, stir for 2-3 minutes, then stir again, then use airless spray machine for construction; when waterproof spraying, powder mixture The preferred mixing ratio with the liquid mixture is 1:0.3. When the bonding and caulking are applied, the mixing ratio of the powder mixture and the liquid mixture is 1:0.25.

The paste joint waterproof three-in-one mosaic adhesive of the invention is suitable for the paste and caulking of the mosaic, and is especially suitable for the outer wall decoration of the mosaic, and also the outer wallpaper brick.

The beneficial effects of the present invention over the prior art are as follows:

(1) The formulation is in the form of a two-component, and the liquid component (component B) is mainly emulsion. In particular, an anionic aqueous emulsion of the type such as carboxylated styrene-butadiene latex is preferred, and such emulsion has good compatibility with cement. , and has excellent waterproof performance. After being mechanically mixed with the materials of A and B components during preparation, it can quickly form a stable paste-like stable glue. After the glue is cured, it has excellent waterproof performance and flexibility. Waterproof material can cover the hairline cracks (less than 0.4 mm) of the base layer, resist slight shock, and improve the overall impermeability of the outer wall;

(2) The adhesive of the present invention has high adhesion, is suitable for mosaic paste with low water absorption rate, and is not prone to empty drums or bricks;

(3) The adhesive of the present invention has a certain elasticity after solidification, and is filled as a caulking material into the gap of the mosaic, and can absorb the stress generated by the outside, is densely packed, and has excellent water repellency and flexibility;

(4) There is no interface separation caused by incompatibility between the materials, so that the mosaic is empty and falling off, and the mechanical spray is performed by the airless spraying machine of the special equipment, which realizes one-time construction of waterproofing, pasting and caulking. Improve work efficiency, reduce labor intensity and save time.

detailed description

The invention is further illustrated by the following examples, which are intended to illustrate the invention and not to limit the scope of the invention.

Example 1 1. The paste-filled waterproof three-in-one mosaic adhesive of the present invention was prepared according to the following formula:

(1) Accurately weigh the following materials according to the ratio: Instruction manual

(2) Put cement, quartz powder, redispersible latex powder, cellulose ether, superplasticizer, water repellent, lignin fiber, defoamer, pigment into a high-speed disperser, stir for 2 minutes, until Mix evenly to obtain a powder mixture;

(3) Accurately weigh the materials of component B according to the formula, pour the emulsion, water, defoamer and preservative into the liquid blender and stir for 2 minutes until the mixture is evenly mixed to obtain the liquid mixture;

(4) The powder mixture and the liquid mixture are mixed at a mass ratio of 1:0.25 to prepare an adhesive glue for waterproof spraying, and the powder mixture and the liquid mixture are mixed at a mass ratio of 1:0.3 to prepare a paste and caulk. For the construction of adhesive glue, the liquid mixture is poured into the barrel container first, then the powder mixture is slowly poured into the mixture, and then fully mixed with an electric mixer, stirred for 5 minutes to form a paste glue, and allowed to stand 2 After a minute, stir again to obtain the adhesive glue;

2. Construction:

(1) Waterproof spraying: The adhesive glue prepared by the airless spraying machine is sprayed with a pressure of 230kg, a flow rate of 8.3L, a conveying pipe diameter of 3/8 inches, a nozzle size of 0.04 inches, and a gun speed of lm/s. , Spray thickness is controlled at 0.5mm for quick waterproof spraying operation, after about 1.5 hours after waterproof spraying, re-enter Explain that the book line is pasted and jointed;

(2) Paste joint filling construction: The adhesive glue prepared by the airless spray machine is sprayed with a nozzle size of 0.042 inches, a gun speed of 0.3 m/s, and an adhesive layer thickness of 1.5 mm. At 2m2, the mosaic piece is laid on the adhesive layer, and the glue is extruded in the mosaic brick joint, and the initial cleaning is performed with a sponge. After 2 hours, the second cleaning is completed to complete the paste and joint construction. .

The performance index of the adhesive prepared in Example 1 was tested as shown in the following table:

Example 2 1. The following formula is used to prepare the three-in-one mosaic adhesive for sticking and sealing joints according to the present invention:

1) Accurately weigh the following materials according to the ratio:

Instruction manual

(2) Put cement, quartz powder, redispersible latex powder, cellulose ether, superplasticizer, water repellent, lignin fiber, defoamer, pigment into a high-speed disperser, stir for 3 minutes, until Mix evenly to obtain a powder mixture;

(3) accurately weigh the materials of component B according to the formula, pour the emulsion, water, defoamer and preservative into the liquid blender, stir for 3 minutes, until the mixture is evenly mixed to obtain the liquid mixture;

(4) The powder mixture and the liquid mixture are mixed at a mass ratio of 1:0.25 to prepare an adhesive glue, specifically, the liquid mixture is first poured into a barrel container, and then the powder mixture is slowly poured into the mixture. Mix thoroughly with an electric mixer, stir for 3 minutes to form a paste-like glue, and let stand for 3 minutes, then stir again. The fineness of the formed glue is determined to be 80 mesh, the viscosity of the glue is 8000 mPa · s, and the glue The fluidity is 110mm, and the operable time is 3 hours;

2. Construction:

(1) Waterproof spraying: The adhesive glue prepared by the airless spraying machine is used, the spraying machine pressure is 230kg, the flow rate is 10L, the conveying pipe diameter is 3/8 inch, the nozzle size is 0.04 inch, and the gun speed is controlled at lm/s. The spraying thickness is controlled at lmm for rapid waterproof spraying operation, and after about 2.5 hours after waterproof spraying, the joint construction of pasting and caulking is carried out;

(2) Paste and joint filling construction: The adhesive glue prepared by the step (1) is used in the airless spraying machine, and the nozzle size is 0.042 inches, the walking speed is 0.6 m/s, and the thickness of the adhesive layer is 2.5 mm for rapid spraying. When the spraying area is 4m ² , the mosaic piece is laid on the adhesive layer, and the glue is extruded in the mosaic brick joint, and the initial cleaning is performed with a sponge. After 2 hours, the cleaning is completed twice. Joint construction of caulking.

Example 3 1. The following formula was used to prepare the paste-filled waterproof three-in-one mosaic adhesive of the present invention:

(4) Mix the powder mixture and the liquid mixture in a mass ratio of 1:0.3, specifically, first pour the liquid mixture into a barrel container, and then slowly pour the powder mixture into the mixture while using an electric mixer. Mix well, stir for 4 minutes to form a paste glue, stir for 2 minutes, then stir to obtain the adhesive glue; the fineness of the formed glue is determined to be 80 mesh, the viscosity of the glue is 10000 mPa · s, glue The slurry has a fluidity of 100mm and an operable time of 2.5 hours;

2. Construction:

(1) Waterproof spraying: The adhesive glue prepared by the airless spraying machine is used, the spraying machine pressure is 230kg, the flow rate is 15L, the conveying pipe diameter is 3/8 inch, the nozzle size is 0.04 inch, and the gun speed is controlled at lm/s. The spraying thickness is controlled at 0.8mm for rapid waterproof spraying operation, and after about 1.5 hours after waterproof spraying, the integrated construction of pasting and caulking is carried out;

(2) Paste joint filling construction: The adhesive glue prepared by the airless spray machine is used to the nozzle size. Description

0.042 inches, the gun speed is 0.5m/s, the thickness of the adhesive layer is 2mm for rapid spraying. When the spraying area is 3m ² , the mosaic is laid on the adhesive layer, and the glue is extruded in the mosaic brick joint. The sponge is used for the first time to clean the seam, and after 2 hours, the second step of cleaning is completed.

[0028] Example 4 Using the following formula to prepare the paste joint waterproof three-in-one mosaic according to the present invention

Adhesive:

Claims

The patent requires a paste-filled waterproof three-in-one mosaic adhesive, which is characterized by: consisting of two components of A and B,

Component A

Cement 300-600 parts

Quartz powder 250-600 parts

Redispersible latex powder 3-30 parts

Cellulose ether 0.5-5 parts

Superplasticizer 0.5-4 parts

Water repellent 0.3-5 parts

Lignin fiber 0.5-10 parts

Defoamer 0.5-10 parts

0-30 parts of pigment,

Component B

Emulsion 200-500 parts

Water 400-800 parts

Defoamer 0.5-10 parts

Preservative 0.5-10 parts;

Wherein the emulsion is a carboxylated styrene butadiene latex, that is, an anionic aqueous emulsion formed by a copolymer of styrene and butadiene.

2 . The paste joint waterproof three-in-one mosaic adhesive according to claim 1 , wherein: the carboxylated styrene-butadiene latex emulsion has a solid content of 50-52%, a viscosity of 7.8-10, and a viscosity at 25° C. The glass transition temperature Tg is 13 ° C for 35-150 mPa · s.

The adhesive three-in-one mosaic adhesive according to claim 1 or 2, wherein: the carboxylated styrene-butadiene latex and the other components of the components A and B are mechanically mixed to form a uniform paste. The stable glue can be sprayed on the working surface quickly by the airless spraying machine, and the uniformity of the uniform paste-like stable glue is controlled to not exceed 100 mesh, and the viscosity range of the glue is controlled at 8000-12000 mPa. · s, the fluidity of the glue is controlled at 80-110mm, and the operable time is controlled at 2-3 hours.

The three-in-one mosaic adhesive for pasting joint filling according to claim 1 or 2, wherein the cement is one of ordinary Portland cement or white Portland cement, and the strength grade is required to be 42.5. The claim or 42.5R or 52.5.

The paste-filled waterproof three-in-one mosaic adhesive according to claim 1 or 2, wherein the redispersible latex powder is an ethylene-vinyl acetate copolymer latex powder or an acrylic latex powder.

The paste-filled waterproof three-in-one mosaic adhesive according to claim 1 or 2, wherein the cellulose ether is hydroxyethyl methyl cellulose ether or hydroxypropyl group having a viscosity of 500-1000 OPA·s Methyl cellulose ether.

The paste-filled waterproof three-in-one mosaic adhesive according to claim 1 or 2, wherein the superplasticizer is a polycarboxylic acid-based superplasticizer or a naphthalenesulfonate superplasticizer.

The paste-filled waterproof three-in-one mosaic adhesive according to claim 1 or 2, wherein the water repellent is calcium stearate or zinc stearate.

The adhesive three-in-one mosaic adhesive according to claim 1 or 2, wherein the antifoaming agent is a silicone antifoaming agent or a liquid hydrocarbon, polyethylene glycol and non-crystalline The mixture of cerium oxide is the main component of the defoaming agent.

10. The three-in-one mosaic adhesive according to claim 1, wherein the preservative is a high-efficiency broad-spectrum bactericide having an isothiazolinone dispersion as an active ingredient.

11. A method of constructing a gluing waterproof three-in-one mosaic adhesive according to claim 1, wherein the method comprises the following steps:

(1) Preparation of adhesive: Weigh each material of A and B components according to the following formula

Component A

Cement 300-600 parts

Quartz powder 250-600 parts

Redispersible latex powder 3-30 parts

Cellulose ether 0.5-5 parts

Superplasticizer 0.5-4 parts

Water repellent 0.3-5 parts

Lignin fiber 0.5-10 parts

Defoamer 0.5-10 parts

Pigment 0-30 parts

Component B Claims lotion 200-500 parts

Water 400-800 parts

Defoamer 0.5-10 parts

Preservative 0.5-10 parts,

(2) Waterproof spraying: The adhesive glue prepared by the step (1) is used in the airless spraying machine, the spraying machine pressure is 230kg, the flow rate is 8.3-15L, the conveying pipe diameter is 3/8 inch, the nozzle size is 0.04 inch, the gun is shot. The speed is controlled at lm/s, the thickness of the spray is controlled at 0.5-lmm for rapid waterproof spraying operation, and after about 1.5-2.5 hours after waterproof spraying, the joint construction of paste and joint is carried out;

(3) Paste and joint filling construction: The adhesive glue prepared by the step (1) is used in the airless spraying machine, with a nozzle size of 0.042 inches, a gun speed of 0.3-0.6 m/s, and an adhesive layer thickness of 1.5-2.5. Mm for rapid spraying operation, when the spraying area is 2-4m ² , the laminated mosaic is laid on the adhesive layer, and the glue is extruded in the mosaic brick joint, and the sponge is used for initial cleaning, 2 hours later After the second cleaning, the integrated construction of the paste and joint is completed.