CN111689723A

CN111689723A - Soft porcelain adobe and preparation method and application thereof

Info

Publication number: CN111689723A
Application number: CN202010502097.1A
Authority: CN
Inventors: 秦远; 王九飙; 陈龙; 秦邦保; 罗云; 冯乐斐; 王晨; 梁雅诗
Original assignee: Zhuhai Gree Green Resources Recycling Co Ltd
Current assignee: Zhuhai Gree Green Resources Recycling Co Ltd
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2020-09-22
Anticipated expiration: 2040-06-04
Also published as: CN111689723B

Abstract

The invention provides a soft tile blank which comprises the following components in parts by weight: A) 10-85 parts of inorganic powder; B) 10-65 parts of composite powder; C) 10-75 parts of water, wherein the composite powder comprises glass fiber and epoxy resin powder. By adding the composite powder containing the glass fiber and the epoxy resin powder, the surface quality and the flexibility of the prepared soft tile blank are improved, and the water absorption and the apparent density of the soft tile blank are reduced.

Description

Soft porcelain adobe and preparation method and application thereof

Technical Field

The invention relates to the field of building ceramics, in particular to a soft ceramic adobe and a preparation method and application thereof.

Background

The soft porcelain (MCM material) is a novel energy-saving low-carbon decorative material, is a wall facing material prepared by processing natural original soil, urban construction waste soil, cement waste blocks, porcelain slag, stone powder and other inorganic substances serving as raw materials, has the characteristics of flexibility, thinness, safety, convenience in construction and the like, can be made into various appearance shapes and decorative patterns according to actual needs, is widely applied to decoration of inner and outer walls of buildings, and has a good market application prospect.

The soft porcelain is made by high-temperature sintering at 400 ℃ of 90% of soil and 10% of water-soluble additive, and is a ceramic tile with the characteristics of elasticity and flexibility formed by forging common soil, so that the texture of hardness, coldness, heaviness and frangibility of the ceramic is thoroughly changed. With diversification and multifunctionality of soft porcelain application, higher requirements are put forward on the performance of the soft porcelain, and in order to meet the performances of weather resistance, ageing resistance, waterproofness, flame retardance, flexibility and the like of the soft porcelain, the use proportion of organic materials is higher, but the wear resistance, scratch resistance, weather resistance and the like of the soft porcelain are reduced to a certain extent.

CN 108516731A discloses a preparation method of soft porcelain. The components of the material are 10 to 30 percent of polymethacrylic resin, 0.5 to 10 percent of organic silicon, 10 to 60 percent of flame retardant, 10 to 40 percent of ore sand, 10 to 60 percent of quartz sand, 0 to 10 percent of auxiliary agent and 5 to 20 percent of water. CN 106830789A discloses a soft porcelain preparation method, which comprises the main raw materials of 40-600 parts of white sand, 300 parts of 200-fold cement, 300 parts of 100-fold calcium carbonate, 1-100 parts of inorganic toner, 50-100 parts of pure cement, 500 parts of 100-fold silica, 1-5 parts of waterproof agent and 3000 parts of 1000-fold water.

In the prior art including the patent, on the aspect of improving the water resistance, wear resistance, ageing resistance and other properties of the soft porcelain, the cementing material is mainly organic emulsion and is called as organic soft porcelain, and a large amount of waterproof agent, flame retardant and quartz sand are used at the same time, so that the dependence of the soft porcelain on the flame retardant and the waterproof agent is large, the use ratio of natural inorganic component materials is high, and the production cost is high.

Disclosure of Invention

In view of the above problems in the prior art, it is an object of the present invention to provide a soft tile body, which has improved surface quality and flexibility and reduced water absorption and apparent density by adding a composite powder comprising glass fiber and epoxy resin powder.

The second purpose of the invention is to provide a preparation method of the soft tile blank corresponding to the first purpose.

The invention also aims to provide a soft tile comprising the soft tile blank.

The fourth purpose of the invention is to provide an application of waste circuit resin powder.

The fifth purpose of the invention is to provide a soft ceramic tile blank and application of the soft ceramic tile.

In order to achieve one of the purposes, the technical scheme adopted by the invention is as follows:

the soft tile blank comprises the following components in parts by weight:

A) 10-85 parts of inorganic powder;

B) 10-65 parts of composite powder;

C) 10-75 parts of water, namely,

wherein the composite powder comprises glass fiber and epoxy resin powder.

In some preferred embodiments of the present invention, in the composite powder, the mass ratio of the glass fiber to the epoxy resin powder is (1-20): 20-1, preferably (1-10): 10-1, more preferably (1-5): 5-1, and further preferably (1-3): 3-1.

According to the present invention, in the composite powder material, the mass ratio of the glass fiber to the epoxy resin powder may be 1:20, 1:15, 1:10, 1:5, 1:4, 1:3, 1:2, 1:1, 2:1, 3:1, 4:1, 5:1, 10:1, 15:1, 20:1, and any value therebetween.

In some preferred embodiments of the present invention, the content of the inorganic powder material A) is 15 to 80 parts, preferably 25 to 75 parts, more preferably 30 to 70 parts, and still more preferably 40 to 65 parts.

In some preferred embodiments of the present invention, the content of the B) composite powder is 15 to 55 parts, preferably 18 to 45 parts, and more preferably 20 to 35 parts.

In some preferred embodiments of the present invention, the weight ratio of the A) inorganic powder to the B) composite powder is (0.1-10): 1, preferably (1-5): 1, more preferably (1-3): 1, and even more preferably (1-2): 1, and may be, for example, 1:1, 1.1:1, 1.2:1, 1.3:1, 1.4:1, 1.5:1, 1.6:1, 1.7:1, 1.8:1, 1.9:1, 2:1, and any value therebetween.

According to the present invention, the amount of water used is not particularly limited as long as it is ensured that a sprayable mixture having good fluidity is obtained.

In some preferred embodiments of the present invention, the glass fibers are alkali-free glass fibers.

In some preferred embodiments of the present invention, the glass fibers have a length of 0.1mm to 10mm, preferably 1mm to 5 mm.

In some preferred embodiments of the invention, the glass fibers have a diameter of 1 μm to 100 μm, preferably 5 μm to 20 μm.

In some preferred embodiments of the present invention, the epoxy resin powder is selected from one or more of o-cresol formaldehyde epoxy resin powder, bisphenol a type epoxy resin powder, biphenyl type epoxy resin powder, and naphthalene ring structure-containing epoxy resin powder.

According to the present invention, epoxy resin powders of the above-mentioned kind can be used in the present invention and achieve comparable technical effects.

In some preferred embodiments of the present invention, the median particle diameter D50 of the epoxy resin powder is 0.01mm to 5mm, preferably 0.05mm to 1.5 mm.

In some preferred embodiments of the present invention, the epoxy resin powder is cured.

According to the present invention, the method of the curing treatment is prior art, and may be performed according to a method generally used in the art. Preferably, the curing agent used in the curing treatment is one or more selected from linear phenolic resin, diamino diphenyl sulfone and imidazole curing agent.

The inventors of the present application have found in their research that the cured resin powder improves the surface quality of the resulting soft tile green body and reduces cracks and holes compared to when a raw resin is used.

In some preferred embodiments of the present invention, the composite powder material is waste circuit board resin powder.

According to the invention, the waste circuit board resin powder is derived from a waste circuit board. Specifically, the waste circuit board is crushed into powder to obtain waste circuit board resin powder.

According to the invention, all the waste circuit board resin powder which contains glass fiber and epoxy resin powder and the content of the glass fiber and the epoxy resin powder is within the required range of the invention can be used for the invention and realize equivalent technical effect. Preferably, the waste circuit board resin powder contains glass fiber and epoxy resin powder, wherein the content of the glass fiber is 50-80%, and the content of the epoxy resin powder is 20-50%.

According to the invention, the waste circuit board resin powder is adopted as the composite powder, so that the beneficial effect of saving cost is achieved. Because the waste circuit board resin powder also contains a large amount of additives, the waste circuit board resin powder has excellent waterproof and flame retardant properties. The waste circuit board resin powder is used as the composite powder, so that the prepared soft ceramic tile blank has better waterproof and flame retardant properties, and the problem of low utilization rate of the waste circuit board resin powder is solved.

According to the invention, the existing waste circuit board resin powder or the waste circuit board resin powder made of the existing waste circuit board can be used for the invention and the expected technical effect can be realized.

In some preferred embodiments of the present invention, the composite powder material is modified by a modifying agent comprising the following components:

a) a first surfactant;

b) a first coupling agent.

According to the invention, the modifier is adopted to modify the composite powder, so that the technical problem of incompatibility with inorganic components can be effectively improved, and the bonding property among the components is improved.

In some preferred embodiments of the present invention, the first surfactant is selected from anionic surfactants.

In some preferred embodiments of the present invention, it is preferably a sulfonate type anionic surfactant, more preferably a succinate sulfonate type surfactant, more preferably one or more of sodium di (2-ethylhexyl) succinate sulfonate, dioctyl sodium succinate sulfonate and diisooctyl sodium succinate sulfonate.

In some preferred embodiments of the present invention, the first coupling agent is selected from one or more of a silane coupling agent and a titanate coupling agent, preferably comprises a silane coupling agent and a titanate coupling agent, and more preferably comprises a mixture of a silane coupling agent and a titanate coupling agent in a mass ratio of (0.1-10): 1.

In some preferred embodiments of the present invention, the silane coupling agent is selected from one or more of gamma-aminopropyltriethoxysilane, gamma- (2, 3-glycidoxy) propyltrimethoxysilane, vinyltrimethoxysilane, vinyltriethoxysilane, gamma-mercaptopropyltrimethoxysilane, N- (beta-aminoethyl) -gamma-aminopropyltrimethoxysilane, and N- (beta-aminoethyl) -gamma-aminopropylmethyldimethoxysilane, the titanate coupling agent is selected from one or more of isopropyl tri (dioctyl pyrophosphato acyloxy) titanate, isopropyl tri (dioctyl phosphato acyloxy) titanate, isopropyl dioleate acyloxy (dioctyl phosphato acyloxy) titanate, monoalkoxy unsaturated fatty acid titanate and triisostearic acid isopropyl ester.

According to the invention, a monoalkoxy fatty acid type titanate of type NDZ-131 can be used.

In some preferred embodiments of the present invention, the first surfactant is used in an amount of 0.01 to 10 parts, preferably 0.1 to 10 parts, based on 100 parts by weight of the composite powder; and/or the first coupling agent is used in an amount of 0.01 to 10 parts, preferably 0.1 to 10 parts.

In some preferred embodiments of the present invention, the starting material further comprises a second surfactant and/or a second coupling agent, the second surfactant being selected from anionic surfactants; the second coupling agent is selected from one or more of a silane coupling agent and a titanate coupling agent, preferably comprises the silane coupling agent and the titanate coupling agent, and more preferably comprises a mixture of the silane coupling agent and the titanate coupling agent in a mass ratio of (0.1-10): 1.

According to the present invention, the technical problem of incompatibility of the organic component and the inorganic component can be improved by adding the second surfactant and/or the second coupling agent to the raw materials.

In some preferred embodiments of the present invention, the content of the second surfactant in the raw material is 0.1 to 5 parts, preferably 0.1 to 3 parts;

in some preferred embodiments of the present invention, the content of the second coupling agent in the raw material is 0.1 to 10 parts, preferably 1 to 8 parts.

In some preferred embodiments of the present invention, the inorganic powder comprises cement, fine sand and optionally montmorillonite powder, wherein the content of the cement in the inorganic powder is 5-45 parts, the content of the fine sand is 5-35 parts, and the content of the montmorillonite powder is 0-5 parts, preferably 1-4 parts.

According to the invention, the inorganic powder may also comprise inorganic powders commonly employed in the art, such as, but not limited to, diatomaceous earth.

According to the present invention, fine sand refers to sand having a modulus of 2.2 to 1.6, corresponding to a particle size of 0.125 to 0.25mm, which is well known to those skilled in the art.

According to the present invention, cement, fine sand, montmorillonite powder, and the like can be used as the materials generally used in the art. For example, for cement, the cement designated 42.5 can be used in the present invention and achieve comparable technical results.

According to the present invention, in the preparation of the soft tile body, additives such as fibers, pigments, plasticizers, cellulose or silicone water-proofing agents, etc., which are generally used in the art, may be further added. The amount of each substance is referred to conventional amount, for example, but not limited to, the amount of the fiber is 0.5-4.5 parts, the amount of the pigment is 2-7 parts, the amount of the plasticizer is 1-3 parts, the amount of the cellulose is 0.1-3.5 parts, and the amount of the organic silicon waterproof agent is 1-4 parts by weight.

According to the invention, the fibers may be selected from inorganic fibers such as cotton fibers, basalt fibers, glass fibers, etc., and have a length of 1mm to 10mm, preferably 3mm to 4 mm.

According to the invention, cellulose having a viscosity of 10000 to 200000mPa.s, preferably 50000 to 100000mPa.s, can be used as the cellulose.

According to the present invention, the plasticizer may be selected from one or more of DOP, DEHP, DIBP and DBP.

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

the preparation method of the soft tile blank comprises the steps of mixing the raw materials to prepare a mixture, and carrying out molding treatment on the mixture to obtain the soft tile blank.

In some preferred embodiments of the present invention, the preparation method comprises the steps of:

1) mixing the inorganic powder and the composite powder to prepare mixed powder;

2) mixing the second surfactant and/or the second coupling agent with water to prepare mixed slurry;

3) mixing the mixed powder and the mixed slurry to prepare a mixture; and

4) and carrying out molding treatment on the mixture.

In some preferred embodiments of the present invention, the conditions of the forming process include: the molding temperature is 25-100 ℃, the molding humidity is 70-95%, and the molding time is 1-10 h.

In some preferred embodiments of the invention, the molding temperature is 35-80 ℃, the molding humidity is 90-92%, and the molding time is 2-8 h.

According to the invention, a glass fiber net can be introduced during the preparation of the soft tile blank, so as to further improve the flexibility of the soft tile blank. When the glass fiber net is adopted, the mixture can be sprayed on the glass fiber net in a step-by-step mode so as to facilitate the filling to be more compact. The method is a conventional technical means in the field and is not described herein in detail.

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

a soft porcelain tile, which comprises the soft porcelain tile blank or the soft porcelain tile blank prepared by the preparation method and a tile surface layer coated on the surface of the soft porcelain tile blank,

wherein the brick facing comprises the following components:

x) a resin paint;

y) Nano TiO₂And (3) powder.

According to the invention, the catalyst is prepared by using a catalyst containing nano TiO₂The surface of the soft porcelain adobe is subjected to nano TiO by the brick surface layer of the powder₂The photocatalytic activity of the titanium powder is fully exerted by modification treatment, so that organic matters deposited on the surface of the soft ceramic tile are degraded, and the stain resistance of the soft ceramic tile is improved.

According to the invention, the resin paint may be diluted as required, for example 10% to 15% at the time of application. The diluent is selected according to the type of the resin paint.

In some preferred embodiments of the present invention, the resin lacquer is selected from one or more of an epoxy resin lacquer and a phenolic resin lacquer.

In the inventionIn some preferred embodiments, the nano TiO₂The particle size of the powder is 1nm to 100nm, preferably 1nm to 10 nm.

In some preferred embodiments of the present invention, the resin paint is mixed with the nano TiO₂The mass ratio of the powder is (1-10): (10-1), more preferably (1-5): 5-1, and still more preferably (1-3): 3-1.

According to the present invention, the inventors of the present application have found through a great deal of experiments and studies that the resin paint is mixed with the nano TiO₂When the mass ratio of the powder is 1 (0.50-0.65), the antifouling effect is best.

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

an application of a waste circuit board in the preparation of soft tile blanks.

According to the invention, the waste circuit board is crushed into powder, and the resin powder of the waste circuit board can be obtained. The waste circuit board resin powder can be used for preparing soft ceramic adobes by the method.

According to the invention, in the waste circuit board resin powder, the content of the glass fiber is 50-80%, and the content of the epoxy resin powder is 20-50%.

According to the invention, the waste circuit board resin powder also contains a small amount of flame retardant, curing agent, toughening agent, filler (silicon dioxide, alumina and the like) and the like.

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

the soft ceramic tile blank or the soft ceramic tile prepared by the preparation method is applied to the field of wall decoration.

The soft tile blank has the advantages of high surface quality, low apparent density, low water absorption, high flexibility and high chemical corrosion resistance. Especially when the waste circuit board resin powder is used as a raw material, the method also has the advantages of saving cost, realizing the harmless and resource utilization of the waste circuit board resin powder and the like.

Drawings

FIG. 1 is a process flow diagram of example 1 of the present invention.

Detailed Description

The present invention will be described in detail below with reference to examples, but the scope of the present invention is not limited to the following description.

The following embodiments do not specify specific conditions, and are carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products commercially available. The use of a material without disclosing specific species or ingredients means that any of the presently available materials may be used in the present invention to achieve a comparable technical result.

In the following embodiments, unless otherwise specified, the type of the epoxy resin powder is o-cresol formaldehyde epoxy resin powder.

In the following embodiments, unless otherwise specified, the monoalkoxy unsaturated fatty acid titanate is a monoalkoxy fatty acid titanate having a trade name of NDZ-131.

Example 1

(1) Preparation and modification of waste circuit board resin powder

The method comprises the following steps: crushing the waste circuit board, and then screening by using an electrostatic separator to obtain waste circuit board resin powder with uniform particle size and granularity of about 100-150 meshes;

step two: and (2) placing 30 parts of the waste circuit board resin powder prepared in the first step and 1.5 parts of dioctyl sodium sulfosuccinate in a high-speed mixer preheated to 110 ℃ for mixing for 30min, adding 2.5 parts of a coupling agent (a mixture of gamma- (2, 3-epoxypropoxy) propyl trimethoxy silane and monoalkoxy unsaturated fatty acid titanate in a mass ratio of 4: 1) into the high-speed mixer, and mixing for 20min to obtain the modified waste circuit board resin powder.

Through detection, the modified waste circuit board resin powder contains glass fiber and epoxy resin powder, the content of the glass fiber is about 65%, and the content of the epoxy resin powder is about 35%.

(2) Preparation of soft porcelain adobe

Step three: uniformly mixing 34 parts of the waste circuit board resin powder prepared in the step two with 28 parts of cement, 15 parts of fine sand, 2 parts of montmorillonite, 3 parts of diatomite, 2 parts of fiber and 5 parts of pigment to obtain uniformly-stirred powder;

step four: adding 1 part of coupling agent (gamma-2, 3-epoxypropoxy) propyl trimethoxy silane and monoalkoxyl unsaturated fatty acid titanate into 25 parts of water according to a mass ratio of 4: 1), 0.8 part of cellulose and 1.5 parts of organosilicon waterproofing agent, adding 2 parts of plasticizer (Dioctyl Phthalate, DOP), and fully and uniformly stirring to obtain uniform slurry;

step five: mixing the prepared powder and slurry, fully stirring to obtain a soft tile slurry material, spraying the soft tile slurry material into a mold by using a slurry pump, then paving a glass fiber net on the surface of the soft tile slurry material, spraying the soft tile slurry material onto the glass fiber net by using the slurry pump to ensure that the soft tile slurry material is buried in the glass fiber net, and finally spraying a layer of soft tile slurry material with the thickness of about 3mm to prepare a green body;

step six: and (5) placing the green body prepared in the fifth step in a constant-temperature and constant-humidity device with the temperature of 60 ℃ and the humidity of 92 percent, curing for 5 hours, demolding, and performing natural oxygen protection for 5 days after demolding to obtain the soft tile blank.

The prepared soft ceramic adobe is tested and meets the relevant regulations in the Flexible Soft tiles (JG/T311 plus 2011) and the modified inorganic powder composite building facing sheets (JC/T2219 plus 2014). Some important experimental results are listed in table 1.

Example 2

The difference from the embodiment 1 is only that the amount of the modified waste circuit board resin powder is 28 parts. The soft tile adobes obtained in example 2 were tested and the results are shown in table 1.

Example 3

The difference from the embodiment 1 is only that the amount of the modified waste circuit board resin powder is 25 parts. The soft tile adobes obtained in example 3 were tested and the results are shown in table 1.

Example 4

The difference from the embodiment 1 is only that the amount of the modified waste circuit board resin powder is 20 parts. The soft tile adobes obtained in example 4 were tested and the results are shown in table 1.

Example 5

The difference from the embodiment 1 is only that the amount of the modified waste circuit board resin powder is 15 parts. The soft tile adobes obtained in example 4 were tested and the results are shown in table 1.

Example 6

The difference from the embodiment 1 is only that the amount of the modified waste circuit board resin powder is 10 parts. The soft tile adobes obtained in example 6 were tested and the results are shown in table 1.

Example 7

The difference from the embodiment 1 is only that the amount of the modified waste circuit board resin powder is 45 parts. The soft tile adobes obtained in example 7 were tested and the results are shown in Table 1.

Example 8

The difference from the embodiment 1 is only that the amount of the modified waste circuit board resin powder is 60 parts. The soft tile adobes obtained in example 8 were tested and the results are shown in table 1.

Example 9

The difference from the embodiment 1 is only that the amount of the modified waste circuit board resin powder is 80 parts. The soft tile adobes obtained in example 9 were tested and the results are shown in table 1.

TABLE 1

Note: in the above table, the first and second sheets,

in the list of surface quality, "class I" indicates "no visible defects such as cracks, voids, and peeling", and "class II" indicates "visible defects such as cracks, voids, and peeling";

in the flexible array, "class I" means "200 mm diameter cylinder bend, no cracks in the test specimen" and "class II" means "200 mm diameter cylinder bend, cracks in the test specimen";

"class A" means "no cracking, delamination, significant change in surface".

Example 10

The procedure of example 1 was repeated except that sodium dodecylsulfate was used in place of dioctyl sodium sulfosuccinate of example 1.

The test of the obtained soft tile adobe shows that the surface quality of the obtained soft tile adobe is equivalent to that of the soft tile adobe obtained in example 1, and the water absorption rate is increased to 8%.

Example 11

The same procedure as in example 1 was repeated except that γ - (2, 3-epoxypropoxy) propyltrimethoxysilane was used in place of the "mixture of γ - (2, 3-epoxypropoxy) propyltrimethoxysilane and monoalkoxy unsaturated fatty acid titanate in a mass ratio of 4: 1" in example 1.

Example 12

The soft tile adobe obtained in example 1 was colored.

Step 1: diluting 1.5 parts of epoxy resin paint by 15 percent by using toluene, then placing the diluted epoxy resin paint into a high-shear emulsifying machine for high-speed stirring, and then adding 0.8 part of nano TiO₂Adding the powder into a high-speed stirrer, and efficiently dispersing for 40-50min under the condition of 3500r/min to obtain modified resin composite paint;

step 2: uniformly spraying the modified composite resin paint on the surface layer of the soft tile blank by adopting an air pressure spraying mode, wherein the thickness of the coating is controlled to be 0.668-0.687 mm;

and step 3: and (3) baking the soft porcelain obtained in the step (2) at 165 ℃ for 3-5min to obtain the anti-pollution self-cleaning flexible soft ceramic tile.

The prepared flexible soft ceramic tile is tested, and the result shows that the stain resistance of the flexible soft ceramic tile is first grade.

Example 13

The only difference from example 12 is that no nano TiO was added₂The powder shows that the stain resistance is four-grade.

Example 14

The only difference from example 12 is that nano TiO₂The dosage of the powder is 0.1 part, and the result shows that the stain resistance is three-grade.

Comparative example 1

The difference from the embodiment 1 is only that the vinyl ester resin is used to replace the modified waste circuit board resin powder in the embodiment 1. The test of the prepared soft tile adobe shows that the visual surface has holes and the cylinder with the diameter of 200mm is bent, and the sample has slight cracks.

Comparative example 2

The difference from the embodiment 1 is only that polyvinyl chloride resin is used to replace the modified waste circuit board resin powder in the embodiment 1. The test of the prepared soft tile adobe shows that the visual surface has holes and the cylinder with the diameter of 200mm is bent, and the sample has slight cracks.

Comparative example 3

The difference from the embodiment 1 is only that the polymethacrylic resin is used to replace the modified waste circuit board resin powder in the embodiment 1. The test of the prepared soft tile adobe shows that the visual surface has holes and the cylinder with the diameter of 200mm is bent, and the sample has slight cracks.

It should be noted that the above-mentioned embodiments are only for explaining the present invention, and do not constitute any limitation to the present invention. The present invention has been described with reference to exemplary embodiments, but the words which have been used herein are words of description and illustration, rather than words of limitation. The invention can be modified, as prescribed, within the scope of the claims and without departing from the scope and spirit of the invention. Although the invention has been described herein with reference to particular means, materials and embodiments, the invention is not intended to be limited to the particulars disclosed herein, but rather extends to all other methods and applications having the same functionality.

Claims

1. The soft tile blank comprises the following components in parts by weight:

A) 10-85 parts of inorganic powder;

B) 10-65 parts of composite powder;

C) 10-75 parts of water, namely,

the composite powder comprises glass fibers and epoxy resin powder, preferably, the mass ratio of the glass fibers to the epoxy resin powder in the composite powder is (1-20): 20-1, preferably (1-10): 10-1, more preferably (1-5): 5-1, and further preferably (1-3): 3-1.

2. The soft tile blank of claim 1, wherein the composite powder is waste circuit board resin powder.

3. The soft tile blank according to claim 1 or 2, wherein the composite powder is modified by a modifier comprising the following components:

a) a first surfactant;

b) a first coupling agent which is a mixture of a first coupling agent,

preferably, the first surfactant is selected from anionic surfactants, preferably sulfonate type anionic surfactants, more preferably succinate sulfonate type surfactants, more preferably one or more of sodium di (2-ethylhexyl) succinate sulfonate, dioctyl sodium succinate sulfonate and diisooctyl sodium succinate sulfonate;

preferably, the first coupling agent is selected from one or more of a silane coupling agent and a titanate coupling agent, preferably comprises the silane coupling agent and the titanate coupling agent, and more preferably comprises a mixture of the silane coupling agent and the titanate coupling agent in a mass ratio of (0.1-10): 1;

preferably, the silane coupling agent is selected from one or more of gamma-aminopropyltriethoxysilane, gamma- (2, 3-glycidoxy) propyltrimethoxysilane, vinyltrimethoxysilane, vinyltriethoxysilane, gamma-mercaptopropyltrimethoxysilane, N- (beta-aminoethyl) -gamma-aminopropyltrimethoxysilane and N- (beta-aminoethyl) -gamma-aminopropylmethyldimethoxysilane, the titanate coupling agent is selected from one or more of isopropyl tri (dioctyl pyrophosphato acyloxy) titanate, isopropyl tri (dioctyl phosphato acyloxy) titanate, isopropyl dioleate acyloxy (dioctyl phosphato acyloxy) titanate, monoalkoxyl unsaturated fatty acid titanate and triisostearic acid isopropyl ester;

more preferably, the first surfactant is used in an amount of 0.01 to 10 parts, preferably 0.1 to 10 parts, based on 100 parts by weight of the composite powder; and/or the first coupling agent is used in an amount of 0.01 to 10 parts, preferably 0.1 to 10 parts.

4. The soft tile blank according to any one of claims 1 to 3, wherein the raw material further comprises a second surfactant and/or a second coupling agent, wherein the second surfactant is selected from the group consisting of anionic surfactants; the second coupling agent is selected from one or more of a silane coupling agent and a titanate coupling agent, preferably comprises the silane coupling agent and the titanate coupling agent, more preferably comprises a mixture of the silane coupling agent and the titanate coupling agent in a mass ratio of (0.1-10): 1,

preferably, in the raw materials, the content of the second surfactant is 0.1-5 parts, preferably 0.1-3 parts;

preferably, in the raw material, the content of the second coupling agent is 0.1-10 parts, preferably 1-8 parts.

5. The soft tile blank according to any one of claims 1 to 4, wherein the inorganic powder comprises cement, fine sand and optionally montmorillonite powder, wherein the content of the cement in the inorganic powder is 5 to 45 parts, the content of the fine sand is 5 to 35 parts, and the content of the montmorillonite powder is 0 to 5 parts, preferably 1 to 4 parts.

6. A method for manufacturing the soft tile blank according to any one of claims 1 to 5, comprising mixing the raw materials to obtain a mixture, and subjecting the mixture to a molding process to obtain the soft tile blank,

preferably, the preparation method comprises the following steps:

3) mixing the mixed powder and the mixed slurry to prepare a mixture; and

4) and carrying out molding treatment on the mixture.

7. The production method according to claim 6, wherein the conditions of the molding process include: the molding temperature is 25-100 ℃, the molding humidity is 70-95%, and the molding time is 1-10 h; preferably, the molding temperature is 35-80 ℃, the molding humidity is 90-92%, and the molding time is 2-8 h.

8. A soft tile comprising the soft tile body of any one of claims 1 to 5 or the soft tile body obtained by the production method of claim 6 or 7, and a tile surface layer applied to the surface of the soft tile body,

wherein the brick facing comprises the following components:

x) a resin paint;

y) Nano TiO₂The powder is prepared by mixing the components of the powder,

preferably, the resin paint is selected from one or more of epoxy resin paint and phenolic resin paint; and/or

The nano TiO₂The particle size of the powder is 1 nm-100 nm, preferably 1 nm-10 nm;

preferably, the resin paint and the nano TiO are mixed₂The mass ratio of the powder is (1-10): (10-1), more preferably (1-5): 5-1, and still more preferably (1-3): 3-1.

9. An application of a waste circuit board in the preparation of soft tile blanks.

10. Use of the soft tile body according to any one of claims 1 to 5 or of the soft tile body obtained by the method according to claim 6 or 7 or of the soft tile according to claim 8 or 9 in the field of wall decoration.