阅读说明：本技术 一种改性无机粉复合建筑装饰面片材专用粘合剂 (Special adhesive for modified inorganic powder composite building decorative surface sheet ) 是由 石光明 于 2021-09-26 设计创作，主要内容包括：本发明属于建筑材料技术领域,具体公开了一种改性无机粉复合建筑装饰面片材专用粘合剂,其主要由A组分和B组分按质量比20:80混合搅拌制成；所述A组分为乳液,所述B组分包括以下重量份的原料组分：砂粉50-60份、无机粉20-25份、矿粉18-20份和助剂1-1.5份。本发明的粘合剂具有粘结效果好、基面适应性广的特点,可有效提高改性无机粉复合建筑装饰面片材的铺贴效果与粘接强度。(The invention belongs to the technical field of building materials, and particularly discloses a special adhesive for a modified inorganic powder composite building decorative surface sheet, which is mainly prepared by mixing and stirring a component A and a component B according to the mass ratio of 20: 80; the component A is emulsion, and the component B comprises the following raw material components in parts by weight: 50-60 parts of sand powder, 20-25 parts of inorganic powder, 18-20 parts of mineral powder and 1-1.5 parts of auxiliary agent. The adhesive has the characteristics of good bonding effect and wide base surface adaptability, and can effectively improve the paving effect and the bonding strength of the modified inorganic powder composite building decorative surface sheet.)

1. The special adhesive for the modified inorganic powder composite building decorative surface sheet is characterized by being prepared by mixing and stirring a component A and a component B according to the mass ratio of 20: 80; the component A is emulsion, and the component B comprises the following raw material components in parts by weight: 50-60 parts of sand powder, 20-25 parts of inorganic powder, 18-20 parts of mineral powder and 1-1.5 parts of auxiliary agent.

2. The binder as claimed in claim 1, wherein the auxiliary agent comprises cellulose ether and calcium aluminum sulfate.

3. The special adhesive for the modified inorganic powder composite building decorative cover sheet as claimed in claim 1, wherein the emulsion is acrylic emulsion.

4. The special adhesive for the modified inorganic powder composite building decorative surface sheet as claimed in claim 1, wherein the sand powder is a mixture of 60 mesh sand powder and 90 mesh sand powder in a weight ratio of 5: 3.

5. The special adhesive for the modified inorganic powder composite architectural decorative cover sheet according to claim 1, wherein the mineral powder is prepared from tailings obtained after copper smelting slag is subjected to mineral processing, and the iron content of the mineral powder is 3.5-3.8%, and the copper content of the mineral powder is 0.21-0.25%.

6. The special adhesive for the modified inorganic powder composite building decorative cover sheet according to claim 1, wherein the inorganic powder comprises montmorillonite, mica powder and calcium carbonate, and the mass ratio of the montmorillonite to the mica powder to the calcium carbonate is 8:3: 4.

7. The special adhesive for the modified inorganic powder composite building device face sheet according to claim 6, wherein the preparation method of the inorganic powder comprises the following steps: coarsely crushing the weighed montmorillonite, mica powder and calcium carbonate respectively, sieving by a 200-mesh sieve, and uniformly mixing to obtain mixed coarse powder; and mixing the mixed coarse powder and stearic acid, adding the mixture into a ball mill for ball milling, inflating and pressurizing the ball mill until the pressure is 0.3MPa after the ball milling is finished, and maintaining the pressure for 8-10min to obtain the inorganic powder.

8. The special adhesive for modified inorganic powder composite building decorative cover sheets as claimed in claim 7, wherein the ball milling temperature is 60-65 ℃, the ball milling time is 10-12min, and the usage amount of stearic acid is 1-1.2% of the mixed coarse powder.

[ technical field ] A method for producing a semiconductor device

The invention relates to the technical field of building materials, in particular to a special adhesive for a modified inorganic powder composite building decorative surface sheet.

[ background of the invention ]

The modified inorganic powder composite building decorative surface sheet is prepared by using modified inorganic powder as main raw material and adding high-molecular polymer, and through forming, cross-linking, heating and compounding, and can show the effects of various bricks, woods, stones, leathers, ceramics, braided fabrics, embossments and the like, and has the thickness of 2mm-10mm, flexible, recyclable and light weight building decorative surface sheet.

The modified inorganic powder composite building facing sheet in the prior art is generally a sheet structure with a smaller size, and when the modified inorganic powder composite building facing sheet is used, the modified inorganic powder composite building facing sheet needs to be adhered to a wall surface one by using an adhesive. The existing adhesive mainly comprises paving ceramic tiles, and basically does not contain a special adhesive for a modified inorganic powder composite building decorative surface sheet. The modified inorganic powder composite architectural decorative surface sheet has soft deformability different from that of ceramic, and the existing tile adhesive is adopted to spread and stick soft ceramic, so that the problems of infirm sticking and the like are easily caused, the aesthetic feeling of spreading and sticking is affected, and certain potential safety hazards are also caused.

[ summary of the invention ]

The invention aims to: aiming at the existing problems, the special adhesive for the modified inorganic powder composite building decorative surface sheet is provided, the adhesive has the characteristics of good bonding effect and wide base surface adaptability, the paving effect of the modified inorganic powder composite building decorative surface sheet can be effectively improved, in addition, the content of harmful substances in the adhesive is low, and the safety is good.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a special adhesive for modified inorganic powder composite building decorative surface sheets is mainly prepared by mixing and stirring a component A and a component B according to the mass ratio of 20: 80; the component A is emulsion, and the component B comprises the following raw material components in parts by weight: 50-60 parts of sand powder, 20-25 parts of inorganic powder, 18-20 parts of mineral powder and 1-1.5 parts of auxiliary agent.

Further, the auxiliary agent comprises cellulose ether and aluminum calcium sulfate.

Further, the emulsion is an acrylic emulsion.

Furthermore, the sand powder is formed by mixing 60-mesh sand powder and 90-mesh sand powder according to a weight ratio of 5: 3.

Further, the mineral powder is prepared from tailings obtained after copper smelting slag beneficiation, and the iron content of the mineral powder is 3.5-3.8%, and the copper content of the mineral powder is 0.21-0.25%.

Further, the inorganic powder comprises montmorillonite, mica powder and calcium carbonate, and the mass ratio of the montmorillonite to the mica powder to the calcium carbonate is 8:3: 4.

Furthermore, the preparation method of the inorganic powder comprises the following steps: coarsely crushing the weighed montmorillonite, mica powder and calcium carbonate respectively, sieving by a 200-mesh sieve, and uniformly mixing to obtain mixed coarse powder; and mixing the mixed coarse powder and stearic acid, adding the mixture into a ball mill for ball milling, inflating and pressurizing the ball mill until the pressure is 0.3MPa after the ball milling is finished, and maintaining the pressure for 8-10min to obtain the inorganic powder.

Furthermore, the ball milling temperature is 60-65 ℃, the ball milling time is 10-12min, and the usage amount of stearic acid is 1-1.2% of the mixed coarse powder.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. the adhesive is prepared by matching the organic emulsion and the inorganic powder, has the characteristics of excellent bonding performance and good condensation effect, and can ensure that the modified inorganic powder composite building decorative surface sheet can be well attached to the wall surface and the floor of the rigid base layer and cannot fall off; meanwhile, the adhesive can be used by adding water to the site for blending and stirring, is simple and convenient to construct and operate, can be used on the base surface of most materials, and is wide in applicability; in addition, the adhesive has low content of harmful substances and good use safety.

2. The invention relates to a sand powder which is prepared by mixing sand powder with 60 meshes and 90 meshes according to the weight ratio of 5:3, although the bonding performance of the adhesive is not greatly influenced, the setting time of the adhesive can be shortened, and the final setting time of the adhesive is not more than 3h through tests, so that the adhesive is beneficial to quick construction and early bonding of sheets.

3. The mineral powder is prepared by further ball milling and magnetic separation of tailings after mineral separation of copper smelting slag, the tailing resources are fully utilized, the environmental pollution is reduced, and the applicant finds that the iron content and the copper content of the mineral powder are respectively controlled to be 3.5-3.8% and 0.21-0.25% in the research process, the tensile bonding strength of the mineral powder after freeze-thaw cycle of an adhesive is obviously improved, and the tensile bonding strength of the mineral powder after freeze-thaw cycle is over 3.35MPa through tests, and is improved by over 10% compared with the adhesive added with other mineral powder with iron content and copper content.

4. The inorganic powder is subjected to ball milling, surface modifier and pressure maintaining treatment, so that the dispersion degree of the inorganic powder is effectively improved, the surface activity of the inorganic powder is enhanced, the inorganic powder and the rest components of the adhesive are physically and chemically combined, the mutual adhesion effect is good, the strength is high, the adhesion effect is effectively enhanced, and the sheet is firmly paved.

[ detailed description ] embodiments

The invention will now be further described with reference to specific examples.

Example 1

A special adhesive for modified inorganic powder composite building decorative surface sheets is mainly prepared by mixing and stirring a component A and a component B according to the mass ratio of 20: 80; the component A is acrylic emulsion, and the component B comprises the following raw material components in parts by weight: 50 parts of sand powder, 20 parts of inorganic powder, 18 parts of mineral powder and 1 part of auxiliary agent. The auxiliary agent comprises cellulose ether and aluminum calcium sulfate, and the dosage ratio of the cellulose to the aluminum calcium sulfate is 1: 1.5; the sand powder is formed by mixing 60-mesh sand powder and 90-mesh sand powder according to a weight ratio of 5: 3; the mineral powder is prepared from tailings obtained after copper smelting slag mineral dressing, and the iron content of the mineral powder is 3.5% and the copper content of the mineral powder is 0.21%; the inorganic powder comprises montmorillonite, mica powder and calcium carbonate, the mass ratio of the montmorillonite to the mica powder to the calcium carbonate is 8:3:4, and the preparation method of the inorganic powder comprises the following steps: coarsely crushing the weighed montmorillonite, mica powder and calcium carbonate respectively, sieving by a 200-mesh sieve, and uniformly mixing to obtain mixed coarse powder; and mixing the mixed coarse powder and stearic acid with the dosage of 1% of the mixed coarse powder, adding the mixture into a ball mill, carrying out ball milling at 60 ℃ for 10min, inflating and pressurizing the ball mill until the pressure is 0.3MPa after the ball milling is finished, and maintaining the pressure for 8min to obtain the inorganic powder.

Example 3

A special adhesive for modified inorganic powder composite building decorative surface sheets is mainly prepared by mixing and stirring a component A and a component B according to the mass ratio of 20: 80; the component A is acrylic emulsion, and the component B comprises the following raw material components in parts by weight: 55 parts of sand powder, 23 parts of inorganic powder, 19 parts of mineral powder and 1.3 parts of auxiliary agent. The auxiliary agent comprises cellulose ether and aluminum calcium sulfate, and the dosage ratio of the cellulose to the aluminum calcium sulfate is 1: 1.5; the sand powder is formed by mixing 60-mesh sand powder and 90-mesh sand powder according to a weight ratio of 5: 3; the mineral powder is prepared from tailings obtained after copper smelting slag mineral dressing, and the iron content of the mineral powder is 3.6% and the copper content of the mineral powder is 0.24%; the inorganic powder comprises montmorillonite, mica powder and calcium carbonate, the mass ratio of the montmorillonite to the mica powder to the calcium carbonate is 8:3:4, and the preparation method of the inorganic powder comprises the following steps: coarsely crushing the weighed montmorillonite, mica powder and calcium carbonate respectively, sieving by a 200-mesh sieve, and uniformly mixing to obtain mixed coarse powder; and mixing the mixed coarse powder and stearic acid with the amount of 1-1.2% of the mixed coarse powder, adding the mixture into a ball mill, carrying out ball milling at 62 ℃ for 11min, inflating and pressurizing the ball mill until the pressure is 0.3MPa after the ball milling is finished, and maintaining the pressure for 9min to obtain the inorganic powder.

Example 3

A special adhesive for modified inorganic powder composite building decorative surface sheets is mainly prepared by mixing and stirring a component A and a component B according to the mass ratio of 20: 80; the component A is acrylic emulsion, and the component B comprises the following raw material components in parts by weight: 60 parts of sand powder, 25 parts of inorganic powder, 20 parts of mineral powder and 1.5 parts of auxiliary agent. The auxiliary agent comprises cellulose ether and aluminum calcium sulfate, and the dosage ratio of the cellulose to the aluminum calcium sulfate is 1: 1.5; the sand powder is formed by mixing 60-mesh sand powder and 90-mesh sand powder according to a weight ratio of 5: 3; the mineral powder is prepared from tailings obtained after copper smelting slag mineral dressing, and the iron content of the mineral powder is 3.8% and the copper content of the mineral powder is 0.25%; the inorganic powder comprises montmorillonite, mica powder and calcium carbonate, the mass ratio of the montmorillonite to the mica powder to the calcium carbonate is 8:3:4, and the preparation method of the inorganic powder comprises the following steps: coarsely crushing the weighed montmorillonite, mica powder and calcium carbonate respectively, sieving by a 200-mesh sieve, and uniformly mixing to obtain mixed coarse powder; and mixing the mixed coarse powder and stearic acid with the dosage of 1.2 percent of the mixed coarse powder, adding the mixture into a ball mill, carrying out ball milling at 65 ℃ for 12min, inflating and pressurizing the ball mill until the pressure is 0.3MPa after the ball milling is finished, and maintaining the pressure for 10min to obtain the inorganic powder.

The harmful substances in the adhesives prepared in the three examples are detected, and the results are shown in table 1:

table 1 test results of harmful substance content in adhesive of each example

As can be seen from the above table, the content of harmful substances in the adhesive disclosed by the invention all meets the technical requirements of water-based adhesives (other adhesives) in GB18583-2008, detected samples are qualified, and free formaldehyde, benzene and toluene + xylene are not detected (the undetected results show that the content of free formaldehyde and benzene is less than 0.05g/Kg, the content of benzene is less than 0.02g/Kg, and the content of toluene and xylene is less than 0.02g/Kg), which indicates that the use safety of the adhesive disclosed by the invention is relatively high.

According to the embodiment of example 1, the influence of the inorganic powder on the adhesive bonding performance of the adhesive is tested according to JC/T547-2005 ceramic wall and floor tile adhesive standard under the condition of consistent other conditions, and the test result is shown in Table 2:

TABLE 2 Effect of inorganic powder ingredients on adhesive bonding Properties

As can be seen from table 2, the adhesive prepared using the inorganic powder of the present invention (specific component + specific ratio) has good adhesive properties; if the inorganic powder components are kept unchanged and the ratio of the components is changed, as shown in comparative examples 1 and 2, the shear bonding strength of the adhesive and the shear bonding strength after heat aging are not affected, but the tensile bonding strength after drying is obviously reduced; if any component in the inorganic powder is replaced, as shown in comparative examples 3 and 4, the bonding strength of the adhesive is reduced, which indicates that the components of the inorganic powder of the present invention have certain functions and cannot be replaced freely.

The above description is intended to describe in detail the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the claims of the present invention, and all equivalent changes and modifications made within the technical spirit of the present invention should fall within the scope of the claims of the present invention.