Light-transmitting organic quartz stone plate, its preparation method and application

Abstract

The present invention provides a light-transmitting organic quartz stone plate and its preparation method and application, relating to the technical field of organic quartz stone plates. The preparation method includes the following steps: (a) making a graded matrix slurry from quartz sand aggregate by the method of grading, taking this matrix slurry for cloth laying and pressing to obtain a light-transmitting organic quartz stone blank; (b) cloth laying a light-transmitting slurry onto the light-transmitting area of the quartz stone blank, enabling the light-transmitting slurry to infiltrate and fill the pores in the light-transmitting area, and curing to obtain a light-transmitting organic quartz stone plate. The present invention solves the problems that in the prior art, when using light-transmitting materials, displacement, breakage and discontinuity will occur during the pressing process, and at the same time, there are problems of unnatural and rigid light transmission, achieving the technical effects of simple process, high production efficiency, stable product quality, easy design of the light-transmitting area and light-transmitting effect, and more natural light transmission.

Description

Technical Field

[0001] The present invention relates to the technical field of organic quartz stone plates, and in particular to a light-transmitting organic quartz stone plate, a preparation method thereof, and an application thereof. Background Art

[0002] Organic quartz stone is mainly made of unsaturated polyester resin as an adhesive, adding quartz powder, quartz sand, coarse aggregate and various additives, and processed through certain processes according to a certain proportion. Due to its good gloss, hard texture, good decorative effect and high strength, organic quartz stone is widely used in various kitchen and bathroom countertops.

[0003] With the intensification of market competition and people's yearning for a better life, artificial stones with light-transmitting functions have emerged, which can meet more decorative scene designs. At present, the preparation methods of light-transmitting artificial stones mainly involve implanting light-transmitting optical fibers and resin materials. One is pre-implanting during the production process of the plate, and the other is embedding by drilling holes after the plate is formed; these two methods have complex processes, low production efficiency, and high costs, and are difficult to be produced and applied on a large scale; in addition, pre-implanting the light-transmitting material is prone to quality problems such as the light-transmitting material being broken or displaced during the pressing process of the plate, affecting the light transmission and its decorative effect. At the same time, the light-transmitting materials used in the prior art are mainly in the shapes of wires, cables, tubes, rods, etc., and the light-transmitting apertures are mainly fixed circles and other regular triangles and quadrilaterals, showing a specified pattern, resulting in an unnatural and rigid actual light-transmitting effect.

[0004] The Chinese patent application with the publication number of CN202410080933.X discloses a light-transmitting inorganic artificial stone and a preparation method thereof. During the production of inorganic artificial stone by the pressing plate method, holes are drilled on the wooden bottom plate according to the required pattern, and then PMMA light-transmitting fibers are inserted into the holes in the bottom plate. This method is complex in operation, large in workload, time-consuming and laborious during implementation; first, the position and size of the hole diameter need to be accurately controlled. If the position of the hole diameter deviates, it will affect the pattern effect. If the size of the hole diameter deviates, the light-transmitting fiber cannot be inserted into the hole diameter or the fit is not firm and easy to fall off. If the optical fiber is too thin, the operation difficulty is greater and it is easy to bend; placing the wooden bottom plate at the bottom of the mold, and then evenly covering the mold with the mixture. Since the artificial stone slurry is in a semi-dry and semi-wet state and most products contain coarse-grained aggregate, it is difficult to evenly distribute the slurry around the light-transmitting optical fiber, and at the same time, problems such as material shortage and cavities are likely to occur; the pressing process is high-frequency vibration pressing, and the light-transmitting optical fiber is prone to quality problems such as being broken, bent and displaced; the wooden bottom plate mold for fixing the optical fiber is easy to be damaged and polluted and cannot be reused.

[0005] The Chinese invention patent application with the publication number CN202310474743.1 discloses a luminescent and permeable 3D printed concrete material and its construction method. The light guiding material is selected from wires, cables, tubes or rod-shaped materials made of optical fibers, resins, glass or acrylic materials. The light guiding materials along the arrangement direction, strip direction and stacking direction are connected by light guiding connectors to complete a continuous light guiding framework. With the construction method of 3D printing concrete materials, the light guiding materials are continuously placed integrally during the printing process along the arrangement direction and strip direction. Since the light guiding materials are distributed by pouring, there is a problem that the light guiding materials are discontinuous and interrupted, blocking the light guiding performance. At the same time, when there is no gap between the light guiding materials, there is no bonding material between the light guiding materials, and the structural firmness and strength cannot be guaranteed. During the pouring of the slurry, due to the downward impact force of the slurry under the action of gravity and pumping pressure, the closely arranged light guiding materials are easily washed away, forming a cross-section, affecting the continuity of light guiding.

[0006] In view of this, the present invention is specifically proposed. Summary of the Invention

[0007] One of the purposes of the present invention is to provide a preparation method of a light-transmitting organic quartz stone plate, which can solve the problems of displacement, breakage and interruption of the light-transmitting material during the pressing process in the prior art, and at the same time, there are problems of unnatural and rigid light transmission.

[0008] Another purpose of the present invention is to provide a light-transmitting organic quartz stone plate with stable quality and more natural light transmission.

[0009] The third purpose of the present invention is to provide an application of the light-transmitting organic quartz stone plate, which is beneficial to improving the decorative effect of buildings and can meet the design requirements of more decorative scenarios.

[0010] In order to achieve the above purposes of the present invention, the following technical solutions are specifically adopted:

[0011] In the first aspect, a preparation method of a light-transmitting organic quartz stone plate includes the following steps:

[0012] (a) Making a graded matrix slurry from quartz sand aggregates by a grading method, taking the matrix slurry for distribution and pressing to obtain a light-transmitting organic quartz stone blank;

[0013] (b) Distributing the light-transmitting slurry to the light-transmitting area of the quartz stone blank, allowing the light-transmitting slurry to penetrate and fill the pores in the light-transmitting area, and curing to obtain the light-transmitting organic quartz stone plate.

[0014] Furthermore, the quartz sand aggregates include highly reflective quartz sand aggregates;

[0015] The preparation method of the highly reflective quartz sand aggregate comprises the following steps:

[0016] Disperse and mix aluminum powder, titanium dioxide, glass microspheres, binder, silicone oil defoamer, 2-(2-hydroxy-5-benzyl) benzotriazole, and methyl ethyl ketone peroxide to obtain a reflective coating slurry;

[0017] Mix the reflective coating slurry and quartz sand, and cure to obtain the highly reflective quartz sand aggregate.

[0018] Further, the highly reflective quartz sand aggregate includes a highly reflective quartz sand aggregate of 26 mesh - 40 mesh and a highly reflective quartz sand aggregate of 40 mesh - 70 mesh;

[0019] The reflectivity of the highly reflective quartz sand aggregate is above 90%.

[0020] Further, the graded matrix slurry is prepared from the following components by weight:

[0021] 10 parts - 50 parts of the highly reflective quartz sand aggregate of 26 mesh - 40 mesh, 10 parts - 50 parts of the highly reflective quartz sand aggregate of 40 mesh - 70 mesh, 2 parts - 5 parts of unsaturated polyester resin, curing agent, and coupling agent;

[0022] Among them, the dosage of the curing agent accounts for 0.5% - 2.0% of the dosage of the unsaturated polyester resin;

[0023] The dosage of the coupling agent accounts for 0.5% - 2.0% of the dosage of the unsaturated polyester resin.

[0024] Further, the porosity of the plate designed by the graded method is 5% - 30%.

[0025] Further, the light-transmitting slurry includes an acrylic resin composite light-transmitting slurry;

[0026] The viscosity of the acrylic resin composite light-transmitting slurry is 80 mPa·s - 150 mPa·s, and the light transmittance after curing is above 90%.

[0027] Further, the light-transmitting slurry infiltrates and fills into the pores of the light-transmitting area under negative pressure.

[0028] Further, the curing temperature is 90°C - 110°C, and the curing time is 2 h - 3 h.

[0029] Second aspect, a light-transmitting organic quartz stone plate prepared by the preparation method described in any one of the above.

[0030] Third aspect, an application of the light-transmitting organic quartz stone plate described above in architectural decoration.

[0031] Compared with the prior art, the present invention has at least the following beneficial effects:

[0032] The preparation method of the light-transmitting organic quartz stone plate provided by the present invention designs the plate formula by the method of graded particle size distribution, so that a light-transmitting area is formed on the plate. Specifically, the present invention uses the matrix slurry designed by graded particle size distribution for cloth laying, so that an interconnected and interwoven pore network three-dimensional structure is formed inside the plate, which can permeate water and light. After filling and curing it with a light-transmitting resin material (light-transmitting slurry), the resin will be tightly bonded to the matrix after curing, thus forming a dense artificial stone plate. When a light source irradiates one side of the plate, the light will penetrate along the interconnected and interwoven resin bodies inside the plate to the other side of the plate, and the light-transmitting effect of the plate is natural. In short, the preparation method of the present invention is not only simple in operation, low in cost, high in production efficiency, and conducive to the popularization and application of products, but also the size and area range of the light-transmitting pores can be arbitrarily designed and easily realized, and the light-transmitting effect is more natural, solving the problems that the light-transmitting materials in the prior art will shift, break and be discontinuous during the pressing process, and at the same time, there are problems of unnatural and rigid light transmission.

[0033] The light-transmitting organic quartz stone plate provided by the present invention has stable quality and more natural light transmission.

[0034] The application of the light-transmitting organic quartz stone plate provided by the present invention is beneficial to improving the decorative effect of buildings and can meet the design requirements of more decorative scenarios. Specific Embodiments

[0035] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are some of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0036] According to the first aspect of the present invention, a preparation method of a light-transmitting organic quartz stone plate is provided, including the following steps:

[0037] (a) Making a matrix slurry with graded particle size distribution from quartz sand aggregate, taking the matrix slurry for cloth laying and pressing to obtain a light-transmitting organic quartz stone blank;

[0038] (b) Cloth laying the light-transmitting slurry into the light-transmitting area of the quartz stone blank, allowing the light-transmitting slurry to penetrate and fill the pores in the light-transmitting area, and curing to obtain a light-transmitting organic quartz stone plate.

[0039] The preparation method of the light-transmitting organic quartz stone plate provided by the present invention designs the plate formula by the method of graded particle size distribution, so that a light-transmitting area is formed on the plate. Specifically, the present invention uses the matrix slurry designed by graded particle size distribution for cloth laying, so that an interconnected and interwoven pore network three-dimensional structure is formed in the plate, which can permeate water and light. After filling and curing it with a light-transmitting resin material (light-transmitting slurry), the resin will be tightly bonded to the matrix after curing, thus forming a dense artificial stone plate. When a light source irradiates one side of the plate, the light will penetrate through the interconnected and interwoven resin bodies inside and reach the other side of the plate, and the light-transmitting effect of the plate is natural.

[0040] In short, the preparation method of the present invention is not only simple in operation, low in cost, high in production efficiency, and conducive to the popularization and application of products, but also the size and area range of the light-transmitting pores can be arbitrarily designed and easily realized, and the light-transmitting effect is more natural, solving the problems that the light-transmitting materials in the prior art will shift, break and be discontinuous during the pressing process, and at the same time there are problems of unnatural and rigid light transmission.

[0041] In a preferred embodiment, the quartz sand aggregate includes but is not limited to a highly reflective quartz sand aggregate. For example, a reflective coating can be wrapped on the surface of the quartz sand aggregate to obtain a highly reflective quartz sand aggregate, which is beneficial to improving the light-transmitting performance of the plate.

[0042] In the present invention, the preparation method of the highly reflective quartz sand aggregate includes the following steps:

[0043] Disperse and mix aluminum powder, titanium dioxide, glass microspheres, binder, silicone oil defoamer, 2-(2-hydroxy-5-benzyl) benzotriazole and methyl ethyl ketone peroxide to obtain a reflective coating slurry;

[0044] Mix the reflective coating slurry and quartz sand, and cure to obtain a highly reflective quartz sand aggregate.

[0045] Wrap a reflective coating on the surface of the quartz sand aggregate, so that the inner wall of the connected pores of the plate has a reflective effect, and thus can effectively improve the light-transmitting performance of the plate.

[0046] In a preferred embodiment, the highly reflective quartz sand aggregate includes but is not limited to a highly reflective quartz sand aggregate of 26 mesh - 40 mesh and a highly reflective quartz sand aggregate of 40 mesh - 70 mesh.

[0047] A typical preparation method of a highly reflective quartz sand aggregate includes the following steps:

[0048] By weight, 3 parts of aluminum powder, 3 parts of titanium dioxide, 10 parts of glass microspheres, 10 parts of binder, 0.05 part of silicone oil defoamer, 0.05 part of 2-(2-hydroxy-5-benzyl) benzotriazole and 0.15 part of methyl ethyl ketone peroxide curing agent are stirred and dispersed by a high-speed disk disperser at 500 r / min for 10 min to obtain a reflective coating slurry;

[0049] By weight, 1 part of the obtained reflective coating slurry and 10 parts of quartz sand are added to a stirrer at 60 r / min and stirred for 5 min. When pre-cured to a gel state at 60 °C, it is sprayed into a high-temperature curing furnace at 180 °C through a 0.04 MPa high-pressure air gun for curing treatment to obtain quartz sand aggregate with high reflective performance, that is, high-reflective quartz sand aggregate.

[0050] In the present invention, the reflectivity of the high-reflective quartz sand aggregate can be above 90%.

[0051] In a preferred embodiment, the graded matrix slurry can be prepared from the following components by weight:

[0052] 10 parts - 50 parts of 26-mesh - 40-mesh high-reflective quartz sand aggregate, 10 parts - 50 parts of 40-mesh - 70-mesh high-reflective quartz sand aggregate, 2 parts - 5 parts of unsaturated polyester resin, curing agent, and coupling agent;

[0053] Among them, the dosage of the curing agent (methyl ethyl ketone peroxide) can account for 0.5% - 2.0% of the dosage of the unsaturated polyester resin; meanwhile, the dosage of the coupling agent (KH570) can account for 0.5% - 2.0% of the dosage of the unsaturated polyester resin.

[0054] In the present invention, by using a graded formulation design, a graded matrix slurry is obtained, and the porosity of the designed plate can be 5% - 30%.

[0055] According to the weight ratio of each component, 26-mesh - 40-mesh high-reflective quartz sand aggregate, 40-mesh - 70-mesh high-reflective quartz sand aggregate, unsaturated polyester resin, curing agent (methyl ethyl ketone peroxide), and coupling agent KH570 are put into a stirrer and stirred for 3 minutes - 5 minutes to obtain the required matrix slurry.

[0056] In a preferred embodiment, the light-transmitting slurry includes but is not limited to acrylic resin composite light-transmitting slurry, its viscosity can be 80 mPa·s - 150 mPa·s, and the light transmittance after curing can be above 90%. It not only has high light-transmitting performance, but also can improve the penetration ability, interfacial adhesion, linear expansion coefficient, and aging resistance, etc., and can form an organic whole with the matrix material to obtain a dense artificial stone plate.

[0057] In a preferred embodiment, the light-transmitting slurry can infiltrate and fill the pores in the light-transmitting area under the action of negative pressure.

[0058] In a preferred embodiment, the temperature for curing the light-transmitting slurry can be 90°C - 110°C, and its typical but non-limiting temperatures are, for example, 90°C, 95°C, 100°C, 105°C, 110°C. The curing time can be 2h - 3h, and its typical but non-limiting times are, for example, 2h, 2.2h, 2.4h, 2.6h, 2.8h, 3h, which is more conducive to obtaining a dense artificial stone slab.

[0059] A typical preparation method of a light-transmitting organic quartz stone slab includes the following steps:

[0060] (1) Prepare the organic quartz stone slab matrix slurry, denoted as slurry A:

[0061] By weight, put 20 - 40 parts of 26 - 40 mesh quartz sand, 20 - 40 parts of 40 - 70 mesh quartz sand, 20 - 40 parts of 70 - 120 mesh quartz sand, 20 - 40 parts of 300 - 500 mesh quartz powder, 10 - 20 parts of unsaturated polyester resin, 1 - 5 parts of pigment, methyl ethyl ketone peroxide curing agent (0.5% - 2.0% of the resin dosage), and coupling agent KH570 (0.5% - 2.0% of the resin dosage) into a blender and stir for 3 - 5 minutes to obtain slurry A;

[0062] (2) Prepare the organic quartz stone slab matrix slurry required for the light-transmitting area, denoted as slurry B:

[0063] By the graded aggregate method, design the porosity of the slab to be 5% - 30%;

[0064] By weight, put 10 - 50 parts of 26 - 40 mesh high-reflective quartz sand aggregate, 10 - 50 parts of 40 - 70 mesh high-reflective quartz sand aggregate, 2 - 5 parts of unsaturated polyester resin, methyl ethyl ketone peroxide curing agent (0.5% - 2.0% of the resin dosage), and coupling agent KH570 (0.5% - 2.0% of the resin dosage) into a blender and stir for 3 - 5 minutes to obtain slurry B;

[0065] Among them, the surface of the high-reflective quartz sand aggregate is coated with a reflective coating, and the reflectance is above 90%;

[0066] The preparation method of the high-reflective quartz sand aggregate includes the following steps:

[0067] By weight, put 3 parts of aluminum powder, 3 parts of titanium dioxide, 10 parts of glass microspheres, 10 parts of adhesive, 0.05 part of silicone oil defoamer, 0.05 part of 2-(2-hydroxy-5-benzyl) benzotriazole, and 0.15 part of methyl ethyl ketone peroxide curing agent into a 500r / min high-speed disk disperser and stir and disperse for 10min to obtain the reflective coating slurry;

[0068] By weight, 1 part of the obtained reflective coating slurry and 10 parts of quartz sand are added to a stirrer at 60 r / min and stirred for 5 min. When pre-cured to the gel state at 60 °C, it is sprayed into a high-temperature curing furnace at 180 °C through a high-pressure air gun at 0.04 MPa for curing treatment to obtain quartz sand aggregate with high reflective performance, which is the high-reflective quartz sand aggregate;

[0069] (3)Select the light-transmitting slurry:

[0070] The selected light-transmitting slurry is an acrylic resin composite light-transmitting slurry, with a viscosity requirement of 80 mPa·s - 150 mPa·s, and the light transmittance after curing is above 90%;

[0071] (4)Perform cloth spreading on the matrix slurry:

[0072] If the whole sheet needs to be light-transmitting, only slurry B needs to be cloth-spread. The slurry B is evenly cloth-spread onto the mold with a frame, and after the cloth spreading is completed, the next process can be carried out;

[0073] Or, if only a local area of the sheet needs to be light-transmitting, according to the design scheme of the light-transmitting area, a mold is made using a PVC board. First, the non-light-transmitting area is hollowed out, the hollowed PVC board is placed in the mold with a frame, then slurry A is cloth-spread into the hollowed area, then the PVC board is taken out, and slurry B is filled into the vacant area to complete the cloth spreading, and then the next process can be carried out;

[0074] (5)Press the blank:

[0075] After the cloth spreading of the matrix slurry is completed, it is sent to a press for pressing (press parameters: vibration frequency 250 Hz, vacuum degree 0.75 bar, pressure 2 MPa). After pressing is completed, a light-transmitting organic quartz stone blank is obtained;

[0076] (6)Perform cloth spreading on the light-transmitting slurry:

[0077] In the light-transmitting area of the light-transmitting organic quartz stone blank, according to the porosity size, the light-transmitting slurry is evenly dripped onto the light-transmitting area, then brushed evenly with a brush, and then sent to a press (vacuum can be pumped) or a vacuum box, and the vacuum pump is turned on for vacuum treatment. The light-transmitting slurry will infiltrate and fill into the pores of the light-transmitting area under the action of negative pressure;

[0078] (7)Bake, cure, maintain, grind, and polish:

[0079] After the cloth spreading of the light-transmitting slurry is completed, the sheet is placed at a temperature of 90 °C - 110 °C for curing for 2 h - 3 h, the mold is removed, the edges are cut, and the surface is ground to 3000 mesh to obtain an organic quartz stone sheet with light-transmitting function, which is the light-transmitting organic quartz stone sheet.

[0080] In summary, compared with the prior art, the present invention is simple to operate, without the need for cumbersome processes such as positioning, drilling, and arranging light-transmitting materials, which is conducive to greatly improving production efficiency, achieving stable mass production, and effectively solving the quality problems such as displacement, breakage, and interruption in the pressing process of light-transmitting materials in the prior art. At the same time, since the production cost of the method of the present invention is low and is comparable to the production cost of existing quartz stone plates, it is conducive to the popularization and application of the product. In addition, the light-transmitting effect can be designed. The size and sparsity of the light-transmitting pores can be adjusted by the porosity. The light-transmitting area and the pattern of the light-transmitting area can be realized through mold design. The shape of the light-transmitting aperture changes with the design, and the light-transmitting effect is more natural. In particular, by using specific highly reflective quartz sand aggregates, a good light reflection effect is formed inside the light-transmitting pores, effectively improving the light-transmitting performance of the plate. By selecting specific light-transmitting slurries, not only is the permeability good, the adhesion to the substrate is good, but also the mechanical properties and linear expansion coefficients are basically the same as those of the substrate, realizing an organic whole with the matrix material. In addition, the color of the light transmitted through the plate can be designed. By adding pigments or dyes with light-transmitting properties of different colors to the light-transmitting slurry, light of colors such as red light, blue light, and fluorescence can be obtained.

[0081] According to a second aspect of the present invention, there is provided a light-transmitting organic quartz stone plate prepared by the preparation method described in any one of the above.

[0082] The light-transmitting organic quartz stone plate provided by the present invention has stable quality and more natural light transmission.

[0083] According to a third aspect of the present invention, there is provided an application of the light-transmitting organic quartz stone plate described above in architectural decoration.

[0084] The application of the light-transmitting organic quartz stone plate provided by the present invention is conducive to improving the decorative effect of buildings and can meet the design requirements of more decorative scenarios.

[0085] The present invention will be further described below through examples. Unless otherwise specified, the materials in the examples are prepared according to existing methods or directly purchased from the market.

[0086] Example 1

[0087] A light-transmitting organic quartz stone plate is prepared by the following preparation method:

[0088] (a) The matrix slurry of the light-transmitting organic quartz stone plate, denoted as slurry A, is prepared according to the following method:

[0089] By weight, 20 parts of quartz sand with a mesh size of 26 - 40, 20 parts of quartz sand with a mesh size of 40 - 70, 25 parts of quartz sand with a mesh size of 70 - 120, 24 parts of 325 - mesh quartz powder, 10 parts of unsaturated polyester resin, 1 part of pigment, methyl ethyl ketone peroxide curing agent (1.0% of the resin dosage), and coupling agent KH570 (1.0% of the resin dosage) are put into a mixer and stirred for 3 - 5 minutes to obtain slurry A;

[0090] (b) The matrix slurry of the organic quartz stone plate required for the light - transmitting area, denoted as slurry B, is prepared by the following preparation method:

[0091] By the graded - aggregate method, the porosity of the plate is designed to be 15%;

[0092] By weight, 50 parts of high - reflective quartz sand aggregate with a mesh size of 26 - 40, 45 parts of high - reflective quartz sand aggregate with a mesh size of 40 - 70, 5 parts of unsaturated polyester resin, methyl ethyl ketone peroxide curing agent (1.0% of the resin dosage), and coupling agent KH570 (1.0% of the resin dosage) are put into a mixer and stirred for 3 - 5 minutes to obtain slurry B;

[0093] The surface of the high - reflective quartz sand aggregate is coated with a reflective coating, and the reflectance is above 90%;

[0094] Among them, the preparation method of the high - reflective quartz sand aggregate includes the following steps:

[0095] By weight, 3 parts of aluminum powder, 3 parts of titanium dioxide, 10 parts of glass microspheres, 10 parts of binder, 0.05 part of silicone oil defoamer, 0.05 part of 2 - (2 - hydroxy - 5 - benzyl) benzotriazole, and 0.15 part of methyl ethyl ketone peroxide curing agent are stirred and dispersed by a 500 r / min high - speed disk disperser for 10 min to obtain a reflective coating slurry;

[0096] By weight, 1 part of the obtained reflective coating slurry and 10 parts of quartz sand are added to a 60 r / min mixer and stirred for 5 min. When pre - cured to the gel state at 60 °C, it is sprayed into a 180 °C high - temperature curing furnace by a 0.04 MPa high - pressure air gun for curing treatment to obtain a quartz sand aggregate with high - reflective performance, that is, the high - reflective quartz sand aggregate;

[0097] (c) Molding and processing:

[0098] First, the hollowed - out PVC board is placed in a framed mold, then slurry A is spread on the hollowed - out area, then the PVC board is taken out, and slurry B is filled in the vacant area. After that, it is sent to a press for pressing (press parameters: vibration frequency 250 Hz, vacuum degree 0.75 bar, pressure 2 MPa), and pressed for 2 minutes to obtain a light - transmitting organic quartz stone embryo;

[0099] The light-transmitting slurry (acrylic resin composite light-transmitting slurry) with a viscosity of 100 mPa·s and a light transmittance of 95% after curing is applied to the light-transmitting area of the obtained blank, and then sent to a press for vacuum treatment. It is kept under pressure for 2 minutes at a vacuum degree of 95% to allow the light-transmitting slurry to infiltrate and fill the pores in the light-transmitting area;

[0100] The obtained plate is placed in a clamping furnace at 100 °C for curing for 2.5 h, then the mold is removed, the edges are cut, and the surface is polished to 3000 mesh to obtain an organic quartz stone plate with light-transmitting function, that is, a light-transmitting organic quartz stone plate.

[0101] Example 2

[0102] This example provides a light-transmitting organic quartz stone plate and its preparation method. The difference from Example 1 is only that the entire plate area has light-transmitting performance, that is, in step (c), slurry A is not applied and a hollow mold is not used, but only slurry B is applied;

[0103] For the remaining steps and their process parameters, refer to Example 1.

[0104] Example 3

[0105] This example provides a light-transmitting organic quartz stone plate and its preparation method. The difference from Example 2 is only that the porosity of the plate is designed to be 30% through the graded design of slurry B;

[0106] For the remaining steps and their process parameters, refer to Example 2.

[0107] Example 4

[0108] This example provides a light-transmitting organic quartz stone plate and its preparation method. The difference from Example 2 is only that 2% of green fluorescent powder is added and mixed in the light-transmitting slurry;

[0109] For the remaining steps and their process parameters, refer to Example 2.

[0110] Example 5

[0111] This example provides a light-transmitting organic quartz stone plate and its preparation method. The difference from Example 1 is only that in step (b), the highly reflective quartz sand aggregate is replaced with a common quartz sand aggregate;

[0112] For the remaining steps and their process parameters, refer to Example 1.

[0113] Example 6

[0114] This example provides a light-transmitting organic quartz stone plate and its preparation method. The difference from Example 1 is only that in step (c), the viscosity of the light-transmitting slurry is adjusted to 80 mPa·s;

[0115] For the remaining steps and their process parameters, refer to Example 1.

[0116] Example 7

[0117] This example provides a light-transmitting organic quartz stone plate and its preparation method. The difference from Example 1 is only that in step (c), the viscosity of the light-transmitting slurry is adjusted to 150 mPa·s.

[0118] For the remaining steps and their process parameters, refer to Example 1.

[0119] Example 8

[0120] This example provides a light-transmitting organic quartz stone plate and its preparation method. The difference from Example 1 is only that in step (c), the viscosity of the light-transmitting slurry is adjusted to 200 mPa·s.

[0121] For the remaining steps and their process parameters, refer to Example 1.

[0122] Example 9

[0123] This example provides a light-transmitting organic quartz stone plate and its preparation method. The difference from Example 1 is only that in step (b), the weight fraction of the unsaturated polyester resin is 1 part.

[0124] For the remaining steps and their process parameters, refer to Example 1.

[0125] Example 10

[0126] This example provides a light-transmitting organic quartz stone plate and its preparation method. The difference from Example 1 is only that in step (b), the weight fraction of the unsaturated polyester resin is 2 parts.

[0127] For the remaining steps and their process parameters, refer to Example 1.

[0128] Example 11

[0129] This example provides a light-transmitting organic quartz stone plate and its preparation method. The difference from Example 1 is only that in step (b), the weight fraction of the unsaturated polyester resin is 3.5 parts.

[0130] For the remaining steps and their process parameters, refer to Example 1.

[0131] Example 12

[0132] This example provides a light-transmitting organic quartz stone plate and its preparation method. The difference from Example 1 is only that in step (b), the weight fraction of the unsaturated polyester resin is 6 parts.

[0133] For the remaining steps and their process parameters, refer to Example 1.

[0134] Comparative Example 1

[0135] This comparative example provides a light-transmitting organic quartz stone plate and a preparation method thereof. The difference from Example 1 is only that in step (c), the light-transmitting slurry is not cloth onto the light-transmitting area of the obtained embryo body;

[0136] For the remaining steps and their process parameters, refer to Example 1.

[0137] Compared with Example 1, the defect of the quartz stone plate obtained in this comparative example is that there are many holes on the plate surface of the light-transmitting area, and the appearance quality of the plate does not meet the product standard of the quartz stone plate.

[0138] Comparative Example 2

[0139] This comparative example provides a light-transmitting organic quartz stone plate and a preparation method thereof. The difference from Example 1 is only that in step (c), the light-transmitting slurry is replaced with an unsaturated polyester resin composite light-transmitting slurry;

[0140] For the remaining steps and their process parameters, refer to Example 1.

[0141] Compared with Example 1, the defect of the quartz stone plate obtained in this comparative example is that the mechanical properties and light transmittance of the plate in the light-transmitting area are both reduced to a certain extent.

[0142] Comparative Example 3

[0143] This comparative example provides a light-transmitting organic quartz stone plate and a preparation method thereof. The difference from Example 1 is only that in step (c), the plate is not cured;

[0144] For the remaining steps and their process parameters, refer to Example 1.

[0145] Compared with Example 1, the defect of the quartz stone plate obtained in this comparative example is that the plate cannot cure itself and has no strength.

[0146] Test Example

[0147] Test the light-transmitting organic quartz stone plates obtained in each example and comparative example, and the results are shown in Table 1.

[0148] Light transmittance test method: Grind the plate in the light-transmitting area of the light-transmitting artificial stone to a thickness of 20 mm, grind both the front and back sides to 3000 mesh, cut into 100 mm * 100 mm * 20 mm specimens, and use a light transmittance meter to test the light transmittance data of the specimens.

[0149] Flexural strength and appearance quality test method: Test according to the method in the standard GB / T 41919-2022 "Artificial Stone Building Plates".

[0150] Light transmission color test method: Grind the light-transmitting area plate of the light-transmitting artificial stone to a thickness of 20 mm, grind both the front and back sides to 3000 mesh, cut it into a sample block of 300 mm * 300 mm * 20 mm, place the sample block on the light-transmitting hole reserved in a sealed and light-shielded room, and observe the color of the light projected on the other side when the sample block is irradiated by sunlight.

[0151] Table 1

[0152]

[0153] Thus, the present invention not only solves the problems of displacement, breakage, and discontinuity that occur during the pressing process of the existing light-transmitting materials, but also has the problems of unnatural and rigid light transmission. It also achieves the technical effects of simple processes, high production efficiency, stable product quality, easy design of the light-transmitting area and light-transmitting effect, and more natural light transmission.

[0154] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for preparing a light-transmitting organic quartz stone plate, characterized in that: The following steps are involved: (a) preparing a matrix slurry with a broken gradation by using a broken gradation method, taking the matrix slurry for spreading and pressing to obtain a light-transmitting organic quartz stone embryo; The broken-graded matrix slurry is prepared from the following components in parts by weight: 10-50 parts of 26-40 mesh high reflective quartz sand aggregate, 10-50 parts of 40-70 mesh high reflective quartz sand aggregate, 2-5 parts of unsaturated polyester resin, curing agent, and coupling agent; (b) spreading the light-transmitting slurry on the light-transmitting area of ​​the quartz stone body, allowing the light-transmitting slurry to penetrate and fill the pores in the light-transmitting area, and solidifying to obtain the light-transmitting organic quartz stone plate; The light-transmitting slurry includes acrylic resin composite light-transmitting slurry; The viscosity of the acrylic resin composite light-transmitting slurry is 80mpa.s-150mpa.s, and the light transmittance after curing is above 90%; The method for preparing the highly reflective quartz sand aggregate comprises the following steps: Aluminum powder, titanium dioxide, glass beads, adhesive, silicone oil defoamer, 2-(2-hydroxy-5-benzyl)benzotriazole and methyl ethyl ketone peroxide are dispersed and mixed to obtain a reflective coating slurry; The reflective coating slurry and quartz sand are mixed and solidified to obtain the highly reflective quartz sand aggregate; The reflectivity of the highly reflective quartz sand aggregate is above 90%; The porosity of the plate designed in the above-mentioned break-gradation mode is 5%-30%.

2. The preparation method according to claim 1, characterized in that: The amount of the curing agent is 0.5%-2.0% of the amount of the unsaturated polyester resin; The amount of the coupling agent used accounts for 0.5%-2.0% of the amount of the unsaturated polyester resin used.

3. The preparation method according to claim 1, characterized in that: The light-transmitting slurry penetrates and fills the pores in the light-transmitting area under the action of negative pressure.

4. The preparation method according to claim 1, characterized in that: The curing temperature of the light-transmitting slurry is 90° C.-110° C., and the curing time of the light-transmitting slurry is 2 h-3 h.

5. A light-transmitting organic quartz stone plate prepared by the preparation method according to any one of claims 1 to 4.

6. Use of the light-transmitting organic quartz stone plate according to claim 5 in architectural decoration.

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