CN108298910B

CN108298910B - Preparation method of plate-shaped ceramic tile adhesive

Info

Publication number: CN108298910B
Application number: CN201810189801.5A
Authority: CN
Inventors: 钟保民; 徐瑜
Original assignee: Foshan Dongpeng Ceramic Co Ltd; Guangdong Dongpeng Holdings Co Ltd; Qingyuan Nafuna Ceramics Co Ltd
Current assignee: Foshan Dongpeng Ceramic Co Ltd; Guangdong Dongpeng Holdings Co Ltd; Qingyuan Nafuna Ceramics Co Ltd
Priority date: 2018-03-08
Filing date: 2018-03-08
Publication date: 2020-12-01
Anticipated expiration: 2038-03-08
Also published as: CN108298910A

Abstract

The invention discloses a preparation method of a plate-shaped ceramic tile adhesive, which comprises the following steps: preparing materials: ball-milling plastic solid waste, adding water for granulation to prepare plastic particles, wherein the water content of the plastic particles is 7-10%; mixing: uniformly mixing plastic particles and a binding material to obtain a mixture, wherein the weight ratio of the plastic particles to the binding material is (0.5-1) to 2; pressing: pressing the mixture into a plate-shaped green body; and (3) drying: drying the blank to obtain the plate-shaped ceramic tile adhesive. The method for preparing the platy tile adhesive has simple steps and is easy to operate. The ceramic tile adhesive is prefabricated into a plate shape and can be taken and used at any time, so that the stirring step before the powdery ceramic tile adhesive is used in the prior art is omitted, the stirring dust is avoided, and the time and the labor are saved when the ceramic tile is paved. The plastic solid waste is mixed with the binding material for pressing after granulation, thereby ensuring the stability of the binding material and being convenient for the storage of the tile binding agent.

Description

Preparation method of plate-shaped ceramic tile adhesive

Technical Field

The invention relates to the technical field of building materials, in particular to a preparation method of a plate-shaped ceramic tile adhesive.

Background

The existing ceramic tile adhesive is powdery and can be used only by being mixed with water into paste when in use. The method for paving ceramic tiles by using the powdery ceramic tile adhesive at present comprises the following steps:

1. firstly, cleaning the back of a preselected ceramic tile and checking a pasting base surface;

2. according to a predetermined proportion, firstly pouring required clear water into a stirring container, and then slowly pouring the ceramic tile glue powder into the stirring container;

3. then stirring the mixture by an electric stirrer until the mixture is uniform and pasty mucilage without particles and precipitates is obtained, standing the mixture for several minutes and slightly stirring the mixture, thus obtaining the paste for tiling;

4. uniformly scraping the mucilage on the base surface and the back surface of the ceramic tile by using a scraper, and then carrying out tiling operation, wherein the ceramic tile is kneaded and pressed on the base surface by hands during tiling, or the parallelism of the ceramic tile is adjusted by lightly beating the ceramic tile by using a rubber hammer;

5. and cleaning, and filling joints after the tile pasting construction is finished and waiting for 24 hours.

The existing ceramic tile adhesive has the following defects:

(1) before paving and pasting the ceramic tiles, stirring the powdery ceramic tile adhesive and water in advance, wherein the dust is large at the initial stirring stage;

(2) because the mixed paste-like mortar has limited ceramic tile adhesive amount and must be used up at the highest speed during each stirring, if the paving area is large, the stirring steps of the powdery ceramic tile adhesive and water must be repeated for many times, which wastes time and labor.

Disclosure of Invention

The invention aims to provide a preparation method of a plate-shaped ceramic tile adhesive, which solves the problem that the ceramic tile adhesive in the prior art is inconvenient to use.

In order to achieve the purpose, the invention adopts the following technical scheme:

a preparation method of a plate-shaped ceramic tile adhesive comprises the following steps:

preparing materials: ball-milling the plastic solid waste, adding water for granulation to prepare plastic particles, wherein the water content of the plastic particles is 7-10%;

mixing: uniformly mixing the plastic particles and the binding material to obtain a mixture, wherein the weight ratio of the plastic particles to the binding material is (0.5-1): 2;

pressing: pressing the mixture into a plate-shaped green body;

and (3) drying: drying the blank to obtain the plate-shaped ceramic tile adhesive.

The method for preparing the platy tile adhesive has simple steps and is easy to operate. The ceramic tile adhesive is prefabricated into a plate shape and can be taken and used at any time, so that the stirring step before the powdery ceramic tile adhesive is used in the prior art is omitted, the stirring dust is avoided, and the time and the labor are saved when the ceramic tile is paved. The plastic solid waste is mixed with the binding material for pressing after granulation, thereby ensuring the stability of the binding material and being convenient for the storage of the tile binding agent.

Further, in the pressing step, the pressing pressure is 10-30 MPa. Therefore, the pressure value can be used for preparing a green body with certain strength, is convenient to carry, and can also be used for preparing the plate-shaped ceramic tile adhesive with certain strength.

Further, in the mixing step, the plastic particles and the binding material are stirred and mixed by a dry powder mortar stirrer for 30 min-1 h. Therefore, the plastic granules and the binding material can be fully and uniformly mixed in a short time by adopting the mixing mode.

Furthermore, in the drying step, the compressive strength of the obtained ceramic tile binder is more than or equal to 1.2 MPa. Thus, the tile adhesive in plate form has sufficient strength to facilitate cutting and handling.

Further, in the drying step, the thickness of the obtained tile adhesive is 1-3 mm. The tile adhesive with the thickness can meet the paving requirement of tiles; the thinner thickness can save more material and reduce cost.

Further, in the material preparation step, the particle size of the plastic particles is 60-120 meshes. The plastic granules with the grain diameter can be fully contacted with the binding material, and are convenient to be pressed into a green body.

Further, the plastic solid waste comprises one or more of kaolin tailings, calcined shale and coal gangue. The plastic solid waste has good plasticity, so that the plate-shaped tile adhesive can keep a certain shape and has enough strength, and the cost can be reduced. The plastic solid wastes can also promote the hydration process of cement and improve the early strength of the cement.

Further, the binding material comprises, by weight, 32-45% of cement, 53-65% of quartz sand, 0.1-0.5% of HMPC and 1-2.5% of redispersible latex powder.

Furthermore, the quartz sand has two particle sizes of 40-70 meshes and 80-140 meshes, and the weight ratio of the 40-70 meshes of quartz sand to the 80-140 meshes of quartz sand is 3: 1.

Further, the binding material comprises, by weight, 35-45% of cement, 50-60% of river sand, 3-7% of triple superphosphate, 0.1-0.2% of cellulose, 0.01-0.05% of starch ether and 0.8-1.5% of redispersible latex powder.

The invention has the beneficial effects that:

1. the method is simple in steps and easy to operate. The plastic solid waste is mixed with the binding material for pressing after granulation, thereby ensuring the stability of the binding material and being convenient for the storage of the tile binding agent.

2. The ceramic tile adhesive is prefabricated into a plate shape, can be taken at any time, is convenient to use, saves the field stirring step, avoids dust raising, and saves time and labor.

3. When the ceramic tile is paved, the ceramic tile adhesive is placed on a base surface, the viscosity of the ceramic tile adhesive is uniformly sprayed and excited, then the ceramic tile is adhered on the ceramic tile adhesive, paving and adhering of the ceramic tile are completed, and the paving and adhering process is simple and rapid.

4. The plate-shaped ceramic tile adhesive has enough strength and is convenient to transport, load and unload.

5. The ceramic tile adhesive is prepared from plastic solid waste, so that the cost can be reduced, the hydration process of cement can be promoted, the early strength of the cement is improved, and the ceramic tile adhesive is favorable for the adhesive effect of the ceramic tile adhesive.

Detailed Description

The technical solution of the present invention will be further described with reference to the following embodiments.

A preparation method of the plate-shaped ceramic tile adhesive comprises the steps of material preparation, mixing, pressing and drying, and specifically comprises the following steps.

Preparing materials: and (3) ball-milling the plastic solid waste, adding water for granulation to prepare plastic granules, wherein the water content of the plastic granules is 7-10%. The plastic granules with the water content are mixed with the bonding material and then pressed, so that the forming effect is good, the stability of the bonding material can be ensured, the plate-shaped tile bonding agent can be conveniently stored, and the gluing effect of the bonding material is not influenced.

Mixing: the plastic particles and the binding material are uniformly mixed to obtain a mixture, and the weight ratio of the plastic particles to the binding material is (0.5-1): 2. The binding material is powder and can be fully mixed with the plastic granules.

The plastic solid waste enables the plate-like tile adhesive to maintain a certain shape and have sufficient strength. The binder ensures that the tile binder has sufficient binding properties. The plastic solid waste and the binding material in the proportion ensure that the tile binding agent has enough strength and better binding performance.

Pressing: pressing the mixture into a plate-shaped green body;

The method for preparing the platy tile adhesive has simple steps and is easy to operate. The ceramic tile adhesive is prefabricated into a plate shape and can be taken and used at any time, so that the stirring step before use in the prior art is omitted, the stirring dust is avoided, and the time and the labor are saved when the ceramic tile is paved.

Preferably, in the pressing step, the pressing pressure is 10-30 MPa. Therefore, the pressure value can be used for preparing a green body with certain strength, is convenient to carry, and can also be used for preparing the plate-shaped ceramic tile adhesive with certain strength.

Preferably, in the mixing step, the plastic particles and the binder are stirred and mixed by a dry powder mortar stirrer for 30min to 1 h. Therefore, the plastic granules and the binding material can be fully and uniformly mixed in a short time by adopting the mixing mode.

Preferably, the compressive strength of the obtained tile adhesive is more than or equal to 1.2MPa in the drying step. Thus, the tile adhesive in the form of a plate has sufficient strength to facilitate handling.

Preferably, in the drying step, the thickness of the obtained tile adhesive is 1-3 mm. The tile adhesive with the thickness can meet the paving requirement of tiles; the thinner thickness can save more material and reduce cost.

Preferably, in the material preparation step, the particle size of the plastic granules is 60-120 meshes. The plastic granules with the grain diameter can be fully contacted with the binding material, and are convenient to be pressed into a green body.

Preferably, the plastic solid waste comprises one or more of kaolin tailings, calcined shale and coal gangue. The plastic solid waste has good plasticity, so that the plate-shaped tile adhesive can keep a certain shape and has enough strength, and the cost can be reduced. The plastic solid wastes can also promote the hydration process of cement and improve the early strength of the cement. These plastic solid wastes are advantageous for the binding effect of the tile adhesive.

Preferably, the binder comprises, by weight, 32-45% of cement, 53-65% of quartz sand, 0.1-0.5% of HMPC and 1-2.5% of redispersible latex powder.

The generation amount of the cement hydration product C-S-H gel can enhance the occlusion effect of the adhesive and the ceramic tile and enhance the bonding effect of the ceramic tile. Sand is an inert filler that counteracts the shrinkage-induced cracking of a portion of the cement.

In the process of bonding the ceramic tile, the ceramic tile can be directly bonded through the film forming effect of the redispersible latex powder besides the chemical effect of the cement hydration product. The two have a certain complementary effect. Meanwhile, the redispersible latex powder has good flexibility and can improve the rigidity of cement.

HPMC (hydroxypropyl methyl cellulose ether) is mainly used as a water retention thickener, and simultaneously, HPMC can delay the hydration kinetic process of cement and has certain retarding effect. Improve the graph model and prolong the operable time. Meanwhile, the cellulose ether has the structural characteristics of the high molecular surfactant, so that the cellulose ether has a certain air entraining effect, and the tensile bonding strength of the ceramic tile adhesive is improved to a great extent.

Preferably, the quartz sand has two particle sizes of 40-70 meshes and 80-140 meshes, and the weight ratio of the 40-70 meshes of quartz sand to the 80-140 meshes of quartz sand is 3: 1. The quartz sand with the two particle sizes is arranged in a reasonable proportion, so that the platy tile adhesive has higher strength after the tile is paved.

Preferably, the binder comprises 35-45% of cement, 50-60% of river sand, 3-7% of triple superphosphate, 0.1-0.2% of cellulose, 0.01-0.05% of starch ether and 0.8-1.5% of redispersible latex powder by weight percentage.

The cement is ordinary cement, and 42.5-grade ordinary portland cement can be used. The particle size of the river sand is 50-120 meshes.

The heavy calcium carbonate can improve the physical properties of the tile adhesive, such as heat resistance and flame retardance. The starch ether can enhance the operation performance of the ceramic tile adhesive and is convenient for paving and pasting the ceramic tile. The cellulose can be hydroxymethyl cellulose, has thickening effect and stabilizer effect, and can maintain a certain shape after the tile binder is sprayed with water.

The invention is further illustrated by the following examples and comparative examples.

Example 1

preparing materials: ball-milling the plastic solid waste, adding water for granulation to prepare plastic granules, wherein the water content of the plastic granules is 7%;

mixing: uniformly mixing the plastic particles and the binding material to obtain a mixture, wherein the weight ratio of the plastic particles to the binding material is 1: 2; and (3) stirring and mixing the plastic particles and the binding material by adopting a dry powder mortar stirrer for 30 min. The particle size of the plastic granules is 120 meshes.

Pressing: pressing the mixture into a plate-shaped green body; the pressing pressure was 30 MPa.

The compressive strength of the obtained ceramic tile binder is more than or equal to 1.2 MPa. The thickness of the obtained tile adhesive was 1 mm.

The plastic solid waste comprises one or more of kaolin tailings, calcined shale and coal gangue. The raw materials of the binding material in percentage by weight are as follows:

raw materials	Cement	Quartz sand	HMPC	Redispersible latex powder
					Proportioning	32％	65％	0.5％	2.5％

The weight ratio of the 40-70 mesh quartz sand to the 80-140 mesh quartz sand is 3: 1.

Example 2

preparing materials: ball-milling the plastic solid waste, adding water for granulation to prepare plastic granules, wherein the water content of the plastic granules is 8%;

mixing: uniformly mixing the plastic particles and the binding material to obtain a mixture, wherein the weight ratio of the plastic particles to the binding material is 0.76: 2; and stirring and mixing the plastic particles and the binding material by a dry powder mortar stirrer for 40 min. The particle size of the plastic granules is 100 meshes.

Pressing: pressing the mixture into a plate-shaped green body; the pressing pressure was 25 MPa.

The compressive strength of the obtained ceramic tile binder is more than or equal to 1.2 MPa. The thickness of the obtained tile adhesive was 2 mm.

raw materials	Cement	Quartz sand	HMPC	Redispersible latex powder
					Proportioning	45％	53％	0.1％	1.9％

Example 3

preparing materials: ball-milling the plastic solid waste, adding water for granulation to prepare plastic granules, wherein the water content of the plastic granules is 10%;

mixing: uniformly mixing the plastic particles and the binding material to obtain a mixture, wherein the weight ratio of the plastic particles to the binding material is 0.5: 2; and (3) stirring and mixing the plastic particles and the binding material by a dry powder mortar stirrer for 1 h. The particle size of the plastic granules is 60 meshes.

Pressing: pressing the mixture into a plate-shaped green body; the pressing pressure was 10 MPa.

The compressive strength of the obtained ceramic tile binder is more than or equal to 1.2 MPa. The thickness of the obtained tile adhesive was 3 mm.

raw materials	Cement	Quartz sand	HMPC	Redispersible latex powder
					Proportioning	35％	63.7％	0.3％	1％

Example 4

preparing materials: ball-milling the plastic solid waste, adding water for granulation to prepare plastic granules, wherein the water content of the plastic granules is 9%;

mixing: uniformly mixing the plastic particles and the binding material to obtain a mixture, wherein the weight ratio of the plastic particles to the binding material is 0.88: 2; the plastic particles and the bonding material are stirred and mixed by a dry powder mortar stirrer for 35 min. The particle size of the plastic granules is 80 meshes.

Pressing: pressing the mixture into a plate-shaped green body; the pressing pressure was 15 MPa.

raw materials	Cement	Quartz sand	HMPC	Redispersible latex powder
					Proportioning	39％	59％	0.3％	1.7％

Example 5

The plastic solid waste comprises one or more of kaolin tailings, calcined shale and coal gangue. The binder comprises the following raw materials in percentage by weight:

the particle size of the river sand is 50-120 meshes.

Example 6

mixing: uniformly mixing the plastic particles and the binding material to obtain a mixture, wherein the weight ratio of the plastic particles to the binding material is 0.88: 2; and stirring and mixing the plastic particles and the binding material by a dry powder mortar stirrer for 45 min. The particle size of the plastic granules is 60 meshes.

Pressing: pressing the mixture into a plate-shaped green body; the pressing pressure was 20 MPa.

raw materials

Cement

River sand

Heavy calcium carbonate

Cellulose, process for producing the same, and process for producing the same

Starch ethers

Redispersible latex powder

Proportioning

45％

50％

4.08％

0.1％

0.01％

0.8％

The particle size of the river sand is 50-120 meshes.

Example 7

mixing: uniformly mixing the plastic particles and the binding material to obtain a mixture, wherein the weight ratio of the plastic particles to the binding material is 0.53: 2; and (3) stirring and mixing the plastic particles and the binding material by adopting a dry powder mortar stirrer for 30 min. The particle size of the plastic granules is 120 meshes.

raw materials

Cement

River sand

Heavy calcium carbonate

Cellulose, process for producing the same, and process for producing the same

Starch ethers

Redispersible latex powder

Proportioning

40％

55.62％

3％

0.15％

0.03％

1.2％

The particle size of the river sand is 50-120 meshes.

Example 8

mixing: uniformly mixing the plastic particles and the binding material to obtain a mixture, wherein the weight ratio of the plastic particles to the binding material is 0.67: 2; the plastic particles and the bonding material are stirred and mixed by a dry powder mortar stirrer for 50 min. The particle size of the plastic granules is 60 meshes.

raw materials

Cement

River sand

Heavy calcium carbonate

Cellulose, process for producing the same, and process for producing the same

Starch ethers

Redispersible latex powder

Proportioning

36.62％

55％

7％

0.15％

0.03％

1.2％

The particle size of the river sand is 50-120 meshes.

Example 9

mixing: uniformly mixing the plastic particles and the binding material to obtain a mixture, wherein the weight ratio of the plastic particles to the binding material is 0.5: 2; and (3) stirring and mixing the plastic particles and the binding material by a dry powder mortar stirrer for 1 h. The particle size of the plastic granules is 100 meshes.

raw materials

Cement

River sand

Heavy calcium carbonate

Cellulose, process for producing the same, and process for producing the same

Starch ethers

Redispersible latex powder

Proportioning

39.42％

54.2％

5％

0.15％

0.03％

1.2％

The particle size of the river sand is 50-120 meshes.

Comparative example

The following raw materials in percentage by weight are uniformly mixed according to the proportion to obtain the common powdery ceramic tile adhesive.

Raw materials	32.5 grade ordinary portland cement	River sand	Acrylic ester latex powder	Hydroxypropyl methyl cellulose ether
					Proportioning	60％	35％	4％	1％

TABLE 1 adhesive strength of tile adhesives of examples 1-9 and comparative examples

The performance test is carried out according to JC/T547-2005 (ceramic wall and floor tile adhesive). As can be seen from table 1:

1. the tensile adhesive strength of the tile adhesives of the embodiments 1-9 and the comparative examples, the tensile adhesive strength after soaking, the tensile adhesive strength after thermal aging and the tensile adhesive strength after freeze-thaw cycling are all more than 0.5MPa, and meet the standard performance requirements of JC/T547-2005 ceramic wall and floor tile adhesive.

2. When the ratio of the plastic solid waste to the binding agent is (0.45-1): 2, the binding performance of the tile binding agent is stable.

3. The tile adhesives of examples 1-9 had slightly higher adhesive properties than the comparative examples because the plastic solid waste was favorable for the adhesive strength of tile adhesion.

4. The tile adhesives of examples 1-9 and comparative example have seepage resistance pressure of more than 1.5, and meet the standard performance requirements of JC/T984-2011 Polymer waterproof mortar.

In addition, tests show that the kaolin tailings, the calcined shale and the coal gangue can be used as cement mixing materials, and the kaolin tailings, the calcined shale and the coal gangue can be added into a cement, quartz sand, HMPC and redispersible emulsion powder system and a cement, river sand, heavy calcium, cellulose, starch ether and redispersible emulsion powder system to promote the hydration process of cement to a certain extent at the early stage of cement hydration, improve the early strength of cement, have no influence on the bonding strength, water resistance, weather resistance, acid-base resistance and shrinkage of a tile adhesive, and are favorable.

The ceramic tile adhesive is prefabricated into a plate shape, can be taken at any time, is convenient to use, saves the field stirring step, avoids dust raising, and saves time and labor. The plate-shaped ceramic tile adhesive breaks the inherent thinking that the ceramic tile adhesive needs to be stirred by adding water before being paved.

The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.

Claims

1. The preparation method of the plate-shaped ceramic tile adhesive is characterized by comprising the following steps:

preparing materials: ball-milling plastic solid waste, adding water for granulation to prepare plastic particles, wherein the water content of the plastic particles is 7-10%;

mixing: uniformly mixing the plastic particles and the binding material to obtain a mixture, wherein the weight ratio of the plastic particles to the binding material is (0.5-1) to 2;

pressing: pressing the mixture into a plate-shaped green body;

and (3) drying: drying the blank to obtain a plate-shaped ceramic tile binder;

in the pressing step, the pressing pressure is 10-30 MPa;

in the mixing step, the plastic particles and the binding material are stirred and mixed by a dry powder mortar stirrer for 30 min-1 h.

2. The method for preparing a plate-shaped tile adhesive according to claim 1, wherein the compressive strength of the tile adhesive obtained in the drying step is not less than 1.2 MPa.

3. The method for preparing a plate-shaped tile adhesive according to claim 1, wherein the thickness of the tile adhesive obtained in the drying step is 1 to 3 mm.

4. The method for preparing a plate-shaped tile adhesive according to claim 1, wherein the plastic granules have a particle size of 60 to 120 mesh in the preparing step.

5. The method for preparing a plate-shaped tile adhesive according to claim 1, wherein the plastic solid waste comprises one or more of kaolin tailings, calcined shale, and coal gangue.

6. The method for preparing the plate-shaped tile adhesive according to any one of claims 1 to 5, wherein the adhesive comprises, by weight, 32 to 45% of cement, 53 to 65% of quartz sand, 0.1 to 0.5% of HMPC, and 1 to 2.5% of redispersible latex powder.

7. The method for preparing a plate-shaped tile adhesive according to claim 6, wherein the quartz sand has two particle sizes of 40-70 mesh and 80-140 mesh, and the weight ratio of the 40-70 mesh quartz sand to the 80-140 mesh quartz sand is 3: 1.

8. The method for preparing the plate-shaped tile binder according to any one of claims 1 to 5, wherein the binder comprises 35 to 45% by weight of cement, 50 to 60% by weight of river sand, 3 to 7% by weight of triple superphosphate, 0.1 to 0.2% by weight of cellulose, 0.01 to 0.05% by weight of starch ether, and 0.8 to 1.5% by weight of redispersible latex powder.