CN110950578A - Artificial stone and preparation method thereof - Google Patents
Artificial stone and preparation method thereof Download PDFInfo
- Publication number
- CN110950578A CN110950578A CN201911127397.XA CN201911127397A CN110950578A CN 110950578 A CN110950578 A CN 110950578A CN 201911127397 A CN201911127397 A CN 201911127397A CN 110950578 A CN110950578 A CN 110950578A
- Authority
- CN
- China
- Prior art keywords
- cullet
- aggregate
- artificial stone
- calcium carbonate
- mixture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/18—Polyesters; Polycarbonates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
- B29C67/242—Moulding mineral aggregates bonded with resin, e.g. resin concrete
- B29C67/243—Moulding mineral aggregates bonded with resin, e.g. resin concrete for making articles of definite length
- B29C67/244—Moulding mineral aggregates bonded with resin, e.g. resin concrete for making articles of definite length by vibrating the composition before or during moulding
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Macromonomer-Based Addition Polymer (AREA)
Abstract
The invention discloses an artificial stone, which comprises a top layer and a bottom layer; comprising a top layer and a bottom layer; the top layer is mainly prepared from the following raw materials in percentage by weight: 7-13% of unsaturated polyester resin, 85-92% of first aggregate, 0.1-1% of curing agent and 0.1-2% of auxiliary agent; the bottom layer is mainly prepared from the following raw materials in percentage by weight: 5-12% of unsaturated polyester resin, 77-100% of second aggregate, 0.1-1% of curing agent and 0.1-2% of auxiliary agent; wherein the first aggregate is cullet and/or calcium carbonate, and the second aggregate is a mixture of calcium carbonate and cullet and/or quartz; wherein, in the raw materials of the artificial stone, the total content of quartz and/or cullet is less than or equal to 50 wt%, and the total content of calcium carbonate is more than or equal to 40 wt%. The artificial stone is divided into a top layer and a bottom layer, and the top layer and the bottom layer adopt completely different formulas; calcium carbonate is not added in the top layer formula, so that the hardness is high, and the acid and alkali resistance and the stain resistance are excellent. The bottom layer formula adopts calcium carbonate, so that the raw material cost can be effectively reduced, and the daily use requirement can be met.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to an artificial stone and a preparation method thereof.
Background
The existing artificial stone plate can be divided into an artificial quartz stone plate and an artificial granite (calcium carbonate and resin). Among them, the synthetic granite is inexpensive, but has a narrow application range because of its poor chemical resistance. The artificial quartz stone has excellent mechanical property and chemical resistance and wide application. The artificial quartz is generally made of quartz with different particle sizes, resin, coupling agent, curing agent and the like. However, since natural high-quality quartz is increasingly exhausted, some researchers introduce cullet into the formulation to replace part of the quartz, but due to the amorphous nature of the glass material, the glass material has more edges and corners and large specific surface area after being crushed, so that the fluidity of the glass material is poor, the amount of required resin is higher than that of the common quartz raw material, and the excessive resin component also causes the increase of the raw material cost and the reduction of the mechanical performance of the plate. The curing thinking for those skilled in the art is: the addition of the cullet can cause the slurry fluidity to be greatly reduced, so that the plate is not uniform, and various physical and chemical properties are reduced; therefore, small amounts of cullet with a very small particle size (< 400 mesh) are generally used as fillers; or a small amount of cullet with large grain size (more than 30 meshes) is used as a decoration; cullet is rarely used to replace the aggregate quartz.
In view of the above problems, the applicant's prior application (201910607431.7) proposed a technique for producing stone materials from cullet, calcium carbonate, resin, curing agent, etc., which does not use any quartz at all in the formulation. However, in subsequent studies, the applicant found that the hardness of the surface of the stone material is low, the stone material is easy to wear, and the acid and alkali resistance and the stain resistance are poor due to the small mohs hardness of the calcium carbonate and the glass material and the poor acid and alkali resistance.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an artificial stone which has low raw material cost, strong surface stain resistance and strong acid and alkali resistance.
The technical problem to be solved by the invention is to provide a preparation method of the artificial stone.
In order to solve the above technical problems, the present invention provides an artificial stone comprising a top layer and a bottom layer; the top layer is mainly prepared from the following raw materials in percentage by weight: 7-13% of unsaturated polyester resin, 85-92% of first aggregate, 0.1-1% of curing agent and 0.1-2% of auxiliary agent;
the bottom layer is mainly prepared from the following raw materials in percentage by weight: 5-12% of unsaturated polyester resin, 77-100% of second aggregate, 0.1-1% of curing agent and 0.1-2% of auxiliary agent;
wherein the first aggregate is cullet and/or calcium carbonate, and the second aggregate is a mixture of calcium carbonate and cullet and/or quartz;
wherein, in the raw materials of the artificial stone, the total content of quartz and/or cullet is less than or equal to 50 wt%, and the total content of calcium carbonate is more than or equal to 40 wt%.
As an improvement of the technical scheme, the top layer is mainly prepared from the following raw materials in percentage by weight: 8-13% of unsaturated polyester resin, 87-92% of first aggregate, 0.1-1% of curing agent and 0.1-1% of auxiliary agent;
the bottom layer is mainly prepared from the following raw materials in percentage by weight: 5-10% of unsaturated polyester resin, 70-95% of second aggregate, 0.1-1% of curing agent and 0.1-1% of auxiliary agent;
wherein the first aggregate is quartz or cullet;
the second aggregate is a mixture of cullet and calcium carbonate, wherein the weight ratio of the cullet to the calcium carbonate is (0.7-0.8): (0.9-1.1).
As an improvement of the technical scheme, the top layer is made of the following raw materials in percentage by weight: 9-13% of unsaturated polyester resin, 89-92% of cullet, 0.1-1% of curing agent, 0.1-1% of auxiliary agent and 0.1-1% of pigment;
the bottom layer is prepared from the following raw materials in percentage by weight: 5-8% of unsaturated polyester resin, 35-40% of cullet, 50-55% of calcium carbonate, 0.1-1% of curing agent, 0.1-1% of auxiliary agent and 0.1-1% of pigment.
As an improvement of the technical scheme, the unsaturated polyester resin is a linear high molecular compound which is formed by polycondensation of unsaturated dibasic acid dihydric alcohol or saturated dibasic acid unsaturated dihydric alcohol and has ester bonds and unsaturated double bonds.
As an improvement of the technical scheme, the curing agent is one or more selected from tert-butyl peroxy-2-ethylhexanoate, tert-butyl peroxybenzoate and benzoyl peroxide;
the auxiliary agent is one or more of silane coupling agent, aluminate coupling agent and titanate coupling agent.
As an improvement of the technical scheme, the weight ratio of the top layer raw material to the bottom layer raw material is (1-4): (6-9.5).
As an improvement of the technical scheme, the granularity of the calcium carbonate is 300-350 meshes, and the granularity of the cullet is 40-120 meshes.
As an improvement of the above technical solution, the cullet includes a first cullet and a second cullet; the granularity of the first cullet is 30-60 meshes, and the granularity of the second cullet is 80-120 meshes;
the second aggregate is first cullet and/or second cullet;
and the first aggregate is second cullet.
As an improvement of the above technical scheme, the second aggregate is a mixture of first cullet and second cullet;
the dosage of the first cullet: the dosage of the second cullet is (0.8-2): (0.3 to 1).
Correspondingly, the invention also discloses a preparation method of the artificial stone, which comprises the following steps:
(1) uniformly mixing various raw materials to obtain a first mixture for forming a top layer and a second mixture for forming a bottom layer;
(2) distributing the first mixture or the second mixture into a mold; forming a first layer;
(3) distributing another mixture to the first layer to form a loose blank;
(4) vibrating and pressing the loose green body to obtain a compact green body;
(5) and heating and curing the compact blank to obtain a finished artificial stone product.
The implementation of the invention has the following beneficial effects:
1. the artificial stone is divided into a top layer and a bottom layer, and the top layer and the bottom layer adopt completely different formulas; calcium carbonate is not added in the top layer formula, and only quartz and/or glass are used as first aggregate, so that the top layer formula has high hardness, and is excellent in acid and alkali resistance and stain resistance. Calcium carbonate and quartz and/or cullet are used as second aggregates in the bottom layer formula, so that the raw material cost can be effectively reduced, and the daily use requirement can be met.
2. According to the invention, the broken glass and the calcium carbonate with different particle sizes and different proportions are adopted, so that the fluidity of the top layer and the bottom layer is approximately the same, and the problem that two layers of plates are easy to warp and deform is effectively solved.
Drawings
FIG. 1 is a schematic view of the structure of an artificial stone according to the present invention;
FIG. 2 is a flow chart of a method for preparing an artificial stone according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below.
The invention provides an artificial stone, see fig. 1, comprising a top layer 1 and a bottom layer 2. Wherein, the top layer 1 is mainly prepared from the following raw materials in percentage by weight: 85-92% of first aggregate, 0.1-1% of curing agent and 0.1-2% of auxiliary agent; the bottom layer is mainly prepared from the following raw materials in percentage by weight: 5-12% of unsaturated polyester resin, 77-100% of second aggregate, 0.1-1% of curing agent and 0.1-2% of auxiliary agent; wherein the first aggregate is cullet and/or calcium carbonate, and the second aggregate is a mixture of calcium carbonate and cullet and/or quartz; wherein, in the raw materials of the artificial stone, the total content of quartz and/or cullet is less than or equal to 50 wt%, and the total content of calcium carbonate is more than or equal to 40 wt%. In the top layer formula, calcium carbonate (Mohs hardness of 3) is not added, and quartz (Mohs hardness of 7) and/or cullet (Mohs hardness of 5.5-6) are/is used as aggregate, so that the top layer artificial stone has good hardness, acid and alkali resistance and stain resistance; in the bottom layer formula, the reasonable collocation of calcium carbonate, quartz and/or cullet ensures that the content of quartz and/or cullet is less than or equal to 50 wt% and the content of calcium carbonate is more than or equal to 40 wt% in the whole stone formula; thereby reducing the cost of the raw materials of the whole artificial stone and meeting the use requirements.
Wherein, the cullet is obtained by crushing waste glass, and the cullet is used for replacing quartz, so that the recycling of the waste glass can be enhanced.
The calcium carbonate is selected from heavy calcium carbonate or light calcium carbonate, but is not limited thereto. The calcium carbonate material has small resin adsorption amount, and can effectively improve the bulk density of the mixed raw materials and improve the fluidity.
The unsaturated polyester resin is a linear high molecular compound which is formed by polycondensation of unsaturated dibasic acid dihydric alcohol or saturated dibasic acid unsaturated dihydric alcohol and has ester bonds and unsaturated double bonds. The curing agent is one or more of tert-butyl peroxy-2-ethylhexanoate, tert-butyl peroxybenzoate and benzoyl peroxide; the additive is one or more of silane coupling agent, aluminate coupling agent and titanate coupling agent. Preferably, the curing agent is tert-butyl peroxy-2-ethylhexanoate, and the additive is gamma-methacryloxypropyltrimethoxysilane.
Furthermore, the raw materials for preparing the artificial stone also comprise pigment. The pigment can be one or two of inorganic pigment and organic pigment; the pigment accounts for 0 to 2 percent of the total weight of the raw materials.
Specifically, in the top layer formula, the amount of the first aggregate is 85 to 92%, preferably 87 to 92%, and more preferably 89 to 92%. The first aggregate in the dosage range can ensure that the hardness and the acid and alkali resistance of the top layer of the artificial stone are excellent. Specifically, the first aggregate can be selected from cullet or quartz alone, or a mixture of cullet and quartz; preferably, cullet is selected, the raw material cost is low, the transparency is high, and the obtained artificial stone plate is better in appearance performance.
In order to maintain reasonable fluidity of the top layer raw material, 5-15% of unsaturated polyester resin is added into the top layer formula; preferably, the resin content is 7 to 13%, and more preferably 8 to 13%.
Furthermore, the particle size of cullet adopted by the top layer raw material is 80-120 meshes, and the cullet with the particle size range is high in fluidity and can be matched with unsaturated polyester resin, so that the mixture of the top layer raw material has high fluidity.
Specifically, in the bottom layer formula, the using amount of the cullet and/or quartz is 35-45%, and preferably 35-40%. Specifically, the cullet or quartz can be selected singly, or a mixture of the cullet and the quartz can be selected; preferably, cullet is selected, and the raw material cost is low.
Wherein, the cullet adopted by the bottom layer formula can be divided into first cullet and second cullet; the granularity of the first cullet is 30-60 meshes, and the granularity of the second cullet is 80-120 meshes; the dosage of the first cullet: the dosage of the second cullet is (0.8-1.2): (0.3-1) (weight ratio); preferably (1-1.2): (0.4-0.6). The mechanical property of the bottom layer of the artificial stone can be improved by adopting the thicker first cullet. Meanwhile, through reasonable collocation of different cullet, the fluidity of the bottom layer and the top layer tends to be consistent, and the deformation defect is reduced.
In the formulation of the bottom layer, the amount of calcium carbonate is 42 to 55%, preferably 45 to 55%, and more preferably 50 to 55%. When the using amount of calcium carbonate exceeds 55%, the fluidity of the bottom layer is too high, the difference between the expansion coefficients of the top layer and the bottom layer is too large, and the deformation problem occurs; and the mechanical properties of the bottom layer are greatly reduced. When the calcium carbonate dosage is less than 42 percent, the cost of the bottom layer raw material is higher.
Furthermore, the granularity of the calcium carbonate is controlled to be 300-350 meshes, and the calcium carbonate with the granularity has a better effect of improving the fluidity of a lower-layer raw material mixture.
In the bottom layer formula, the dosage of the unsaturated polyester resin is 5-12%, preferably 5-10%, and more preferably 5-8%; the introduction of calcium carbonate can improve the fluidity, thereby reducing the dosage of resin.
Specifically, in the invention, the weight ratio of the top layer raw material to the bottom layer raw material is (1-4): (6-9.5); in the proportion range, the content of quartz and/or cullet in the raw materials for producing the artificial stone plate can be controlled to be less than or equal to 50 wt%, and the content of calcium carbonate is controlled to be more than or equal to 40 wt%; thereby reducing the cost of the raw materials of the whole artificial stone and meeting the use requirements. Preferably, the weight ratio of the top layer raw material to the bottom layer raw material is (1-2): (7-9.5).
Correspondingly, referring to fig. 2, the invention also discloses a preparation method of the artificial stone, which comprises the following steps:
s1: preparing various raw materials, and uniformly mixing the raw materials according to a formula to obtain a first mixture for forming a top layer and a second mixture for forming a bottom layer;
specifically, S1 includes:
s11: preparing raw materials according to a formula, and preprocessing the raw materials; so that the particle size range thereof is within the range claimed in the present invention.
S12: uniformly mixing part of resin, a curing agent and an additive to obtain slurry;
s13: mixing the residual resin and the pigment uniformly to obtain a decorative material;
s14: adding the decorative material, calcium carbonate, cullet and/or quartz into the slurry, and uniformly mixing to obtain a first mixture or a second mixture.
Wherein, the formula of the top layer mainly comprises the following components in percentage by weight: 7-13% of unsaturated polyester resin, 85-92% of quartz and/or cullet, 0.1-1% of curing agent and 0.1-2% of auxiliary agent; preferably, the top layer formulation is: 8-13% of unsaturated polyester resin, 87-92% of quartz and/or cullet, 0.1-1% of curing agent and 0.1-1% of auxiliary agent; or the top layer formula is as follows: 9-13% of unsaturated polyester resin, 89-92% of cullet, 0.1-1% of curing agent, 0.1-1% of auxiliary agent and 0.1-1% of pigment, but not limited to.
The formula of the bottom layer mainly comprises the following components in percentage by weight: 5-12% of unsaturated polyester resin, 35-45% of quartz and/or cullet, 42-55% of calcium carbonate, 0.1-1% of curing agent and 0.1-2% of auxiliary agent; preferably, the bottom layer formula is: 5-10% of unsaturated polyester resin, 35-40% of quartz and/or cullet, 45-55% of calcium carbonate, 0.1-1% of curing agent and 0.1-1% of auxiliary agent; or the formula of the bottom layer is as follows: 5-8% of unsaturated polyester resin, 35-40% of cullet, 50-55% of calcium carbonate, 0.1-1% of curing agent, 0.1-1% of auxiliary agent and 0.1-1% of pigment.
S2: distributing the first mixture or the second mixture into a mold to form a first layer;
specifically, the first mixture may be first distributed into a mold to form a first layer; the second mixture may also be distributed into a mold to form the first layer.
Preferably, the first mixture is first distributed into a mold to form a first layer. In the invention, the proportion of the first mixture is large, and the first mixture is distributed firstly, so that the aggregate (quartz and/or cullet) on the top layer can be effectively prevented from flowing in a large range in the subsequent vibration pressing process.
Further preferably, S2 may include:
s21: distributing the first mixture or the second mixture into a mold to form a loose aggregate;
s22: prepressing the bulk aggregate to form a first layer;
specifically, a prepressing roller can be adopted to prepress the bulk material aggregate to form a first layer; after prepressing, the large-range flowing of calcium carbonate, quartz and cullet can be prevented, so that the artificial stone has stable performance.
Specifically, the bulk aggregate may be pre-vibrated to form the first layer. The frequency of the pre-vibration pressure is 25-40 Hz, and the time is 30-50 s. Through pre-vibration pressing, mutual penetration between two layers of materials can be greatly reduced to form two layers which are not homogenized with each other, so that the performance of the artificial stone is stable; the surface of the first layer can be smooth, and later-period cloth distribution is facilitated; simultaneously, the raw materials of the first layer can be fully mixed
S3: distributing another mixture to the first layer to form a loose blank;
s4: vibrating and pressing the loose green body to obtain a compact green body;
wherein the frequency of the vibration pressing is 20-60 Hz, and the vibration pressing time is 0.5-3 min; preferably, the frequency of the vibration pressing is 20-50 Hz, and the vibration pressing time is 0.5-1.5 min.
S5: and heating and curing the compact blank to obtain the artificial stone finished product.
The compact blank is heated and cured for one time, so that the bottom layer and the top layer can be effectively connected to form the finished artificial stone.
Specifically, the heating and curing temperature is 80-120 ℃.
Further, the preparation method also comprises the working procedures of thickening, polishing and cutting the artificial stone.
The present invention will be described with reference to specific examples.
Example 1
The embodiment provides an artificial stone, which is divided into a bottom layer and a top layer; wherein the weight ratio of the raw materials used in the bottom layer to the raw materials used in the top layer is 9: 1;
the top layer formula is as follows:
13% of unsaturated polyester resin, 85% of first aggregate, 1% of curing agent and 1% of additive;
the bottom layer formula is as follows:
8% of unsaturated polyester resin, 90.4% of second aggregate, 0.6% of curing agent and 1% of additive;
wherein the first aggregate is quartz, and the second aggregate is a mixture of cullet and calcium carbonate; and glass cullet: calcium carbonate 1.05: 1.21; the curing agent is tert-butyl peroxy-2-ethylhexanoate, and the additive is titanate coupling agent;
the preparation method comprises the following steps:
(1) uniformly mixing various raw materials to obtain a first mixture for forming a top layer and a second mixture for forming a bottom layer;
(2) distributing the first mixture into a mold; forming a first layer;
(3) distributing another mixture to the first layer to form a loose blank;
(4) vibrating and pressing the loose green body to obtain a compact green body;
wherein the vibration pressure frequency is 55Hz, and the vibration pressure time is 50 s;
(5) and heating and curing the compact blank to obtain a finished artificial stone product.
Wherein the heating curing temperature is 90 ℃.
Example 2
The embodiment provides an artificial stone, which is divided into a bottom layer and a top layer; wherein the weight ratio of the raw materials used in the bottom layer to the raw materials used in the top layer is 17: 3;
the top layer formula is as follows:
11% of unsaturated polyester resin, 86.8% of quartz, 0.9% of curing agent, 0.3% of additive and 1% of pigment;
the bottom layer formula is as follows:
6.4 percent of unsaturated polyester resin, 38 percent of cullet, 54 percent of calcium carbonate, 0.4 percent of curing agent, 0.4 percent of additive and 0.8 percent of pigment;
wherein, the curing agent is tert-butyl peroxy-2-ethylhexanoate, and the additive is gamma-methacryloxypropyl trimethoxysilane; the particle size range of the cullet is 40-120 meshes; the granularity range of the calcium carbonate is 300-350 meshes;
the preparation method comprises the following steps:
(1) uniformly mixing various raw materials to obtain a first mixture for forming a top layer and a second mixture for forming a bottom layer;
(2) distributing the second mixture into a mold; forming a first layer;
(3) distributing another mixture to the first layer to form a loose blank;
(4) vibrating and pressing the loose green body to obtain a compact green body;
wherein the vibration pressure frequency is 45Hz, and the vibration pressure time is 80 s;
(5) and heating and curing the compact blank to obtain a finished artificial stone product.
Wherein the heating curing temperature is 100 ℃.
Example 3
The embodiment provides an artificial stone, which is divided into a bottom layer and a top layer; wherein the weight ratio of the raw materials used in the bottom layer to the raw materials used in the top layer is 4: 1;
the top layer formula is as follows:
10 percent of unsaturated polyester resin, 88 percent of cullet, 0.8 percent of curing agent, 0.4 percent of additive and 0.8 percent of pigment;
the bottom layer formula is as follows:
6.2 percent of unsaturated polyester resin, 38 percent of cullet, 54 percent of calcium carbonate, 0.6 percent of curing agent, 0.3 percent of additive and 0.9 percent of pigment;
wherein, the curing agent is tert-butyl peroxy-2-ethylhexanoate, and the additive is gamma-methacryloxypropyl trimethoxysilane; in the top layer formula, the particle size of the cullet is 80-120 meshes; in the bottom layer formula, the cullet comprises a first cullet and a second cullet, the granularity of the first cullet is 30-60 meshes, the granularity of the second cullet is 80-120 meshes, and the dosage of the first cullet is as follows: the amount of the second cullet is 2: 1; the granularity range of the calcium carbonate is 300-350 meshes;
the preparation method comprises the following steps:
(1) uniformly mixing various raw materials to obtain a first mixture for forming a top layer and a second mixture for forming a bottom layer;
(2) distributing the first mixture into a mold; forming a first layer;
(3) distributing another mixture to the first layer to form a loose blank;
(4) vibrating and pressing the loose green body to obtain a compact green body;
wherein the vibration pressure frequency is 45Hz, and the vibration pressure time is 60 s;
(5) and heating and curing the compact blank to obtain a finished artificial stone product.
Wherein the heating curing temperature is 100 ℃.
Example 4
This example provides an artificial stone having the same formulation as in example 3;
the preparation method comprises the following steps:
(1) uniformly mixing various raw materials to obtain a first mixture for forming a top layer and a second mixture for forming a bottom layer;
(2) distributing the first mixture into a mold; forming a first layer;
specifically, after the first mixture is distributed into a mold, pre-vibration pressing is carried out, wherein the pre-vibration pressing frequency is 35Hz, and the time is 45s, and then a first layer is obtained;
(3) distributing another mixture to the first layer to form a loose blank;
(4) vibrating and pressing the loose green body to obtain a compact green body;
wherein the vibration pressure frequency is 45Hz, and the vibration pressure time is 60 s;
(5) and heating and curing the compact blank to obtain a finished artificial stone product.
Wherein the heating curing temperature is 100 ℃.
Comparative example 1
The present comparative example provides an artificial stone, which employs an integrated formulation;
the formula is as follows:
50% of cullet, 40% of calcium carbonate, 8.7% of unsaturated polyester resin, 0.7% of curing agent and 0.6% of additive;
the curing agent is tert-butyl peroxy-2-ethylhexanoate, and the additive is gamma-methacryloxypropyl trimethoxy silane.
The preparation method comprises the following steps:
(1) uniformly mixing various raw materials to obtain a mixture;
(2) distributing the mixture into a mold; forming a loose blank;
(3) vibrating and pressing the loose green body to obtain a compact green body;
wherein the vibration pressure frequency is 45Hz, and the vibration pressure time is 60 s;
(5) and heating and curing the compact blank to obtain a finished artificial stone product.
Wherein the heating curing temperature is 100 ℃.
The results of the tests of examples 1-4 and comparative example 1 according to the method of standard JC/T908-2013 are as follows (wherein the artificial stone specification is 600mm x 1200 mm):
while the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. An artificial stone, comprising a top layer and a bottom layer; the top layer is mainly prepared from the following raw materials in percentage by weight: 7-13% of unsaturated polyester resin, 85-92% of first aggregate, 0.1-1% of curing agent and 0.1-2% of auxiliary agent;
the bottom layer is mainly prepared from the following raw materials in percentage by weight: 5-12% of unsaturated polyester resin, 77-100% of second aggregate, 0.1-1% of curing agent and 0.1-2% of auxiliary agent;
wherein the first aggregate is cullet and/or calcium carbonate, and the second aggregate is a mixture of calcium carbonate and cullet and/or quartz;
wherein, in the raw materials of the artificial stone, the total content of quartz and/or cullet is less than or equal to 50 wt%, and the total content of calcium carbonate is more than or equal to 40 wt%.
2. An artificial stone according to claim 1, wherein the top layer is made essentially of the following raw materials in weight percent: 8-13% of unsaturated polyester resin, 87-92% of first aggregate, 0.1-1% of curing agent and 0.1-1% of auxiliary agent;
the bottom layer is mainly prepared from the following raw materials in percentage by weight: 5-10% of unsaturated polyester resin, 70-95% of second aggregate, 0.1-1% of curing agent and 0.1-1% of auxiliary agent;
wherein the first aggregate is quartz or cullet;
the second aggregate is a mixture of cullet and calcium carbonate, wherein the weight ratio of the cullet to the calcium carbonate is (0.7-0.8): (0.9-1.1).
3. An artificial stone according to claim 1, wherein the top layer is made from the following raw materials in weight percent: 9-13% of unsaturated polyester resin, 89-92% of cullet, 0.1-1% of curing agent, 0.1-1% of auxiliary agent and 0.1-1% of pigment;
the bottom layer is prepared from the following raw materials in percentage by weight: 5-8% of unsaturated polyester resin, 35-40% of cullet, 50-55% of calcium carbonate, 0.1-1% of curing agent, 0.1-1% of auxiliary agent and 0.1-1% of pigment.
4. An artificial stone according to any one of claims 1 to 3, wherein the unsaturated polyester resin is a linear polymer compound having an ester bond and an unsaturated double bond, which is obtained by polycondensation of an unsaturated dibasic acid diol or a saturated dibasic acid unsaturated diol.
5. An artificial stone according to any one of claims 1 to 3, wherein the curing agent is one or more selected from t-butyl peroxy-2-ethylhexanoate, t-butyl peroxybenzoate and benzoyl peroxide;
the auxiliary agent is one or more of silane coupling agent, aluminate coupling agent and titanate coupling agent.
6. An artificial stone according to any one of claims 1 to 3, wherein the weight ratio of the top layer raw material to the bottom layer raw material is (1 to 4): (6-9.5).
7. An artificial stone according to any one of claims 1 to 3, wherein the particle size of the calcium carbonate is 300 to 350 mesh and the particle size of the cullet is 40 to 120 mesh.
8. An artificial stone according to any one of claims 1-3, wherein the cullet includes a first cullet and a second cullet; the granularity of the first cullet is 30-60 meshes, and the granularity of the second cullet is 80-120 meshes;
the second aggregate is first cullet and/or second cullet;
and the first aggregate is second cullet.
9. An artificial stone according to claim 8, wherein the second aggregate is selected from a mixture of first cullet and second cullet;
the dosage of the first cullet: the dosage of the second cullet is (0.8-2): (0.3 to 1).
10. A method of making an artificial stone according to any one of claims 1-9, comprising:
(1) uniformly mixing various raw materials to obtain a first mixture for forming a top layer and a second mixture for forming a bottom layer;
(2) distributing the first mixture or the second mixture into a mold; forming a first layer;
(3) distributing another mixture to the first layer to form a loose blank;
(4) vibrating and pressing the loose green body to obtain a compact green body;
(5) and heating and curing the compact blank to obtain a finished artificial stone product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911127397.XA CN110950578A (en) | 2019-11-18 | 2019-11-18 | Artificial stone and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911127397.XA CN110950578A (en) | 2019-11-18 | 2019-11-18 | Artificial stone and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110950578A true CN110950578A (en) | 2020-04-03 |
Family
ID=69977720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911127397.XA Pending CN110950578A (en) | 2019-11-18 | 2019-11-18 | Artificial stone and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110950578A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115594441A (en) * | 2021-12-17 | 2023-01-13 | 上海摩尔舒企业发展有限公司（Cn） | Artificial stone counter basin and preparation method thereof |
| IL286876A (en) * | 2021-09-30 | 2023-04-01 | Caesarstone Ltd | Multilayered slab and method of making same |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2247139C2 (en) * | 2001-11-06 | 2005-02-27 | Доппель, Ко., Лтд. | Artificial stone and is structure |
| CN101474827A (en) * | 2009-01-09 | 2009-07-08 | 周显达 | Normal temperature manufacturing process for MMA high-intensity artificial stone special-shaped pot/trough |
| CN102329100A (en) * | 2010-07-12 | 2012-01-25 | 周军 | Artificial quartz stone checkered plate and process thereof |
| CN104291734A (en) * | 2014-09-24 | 2015-01-21 | 湖北硅金凝健康石材有限公司 | Artificial stone and preparation method thereof |
| CN106630757A (en) * | 2017-01-03 | 2017-05-10 | 新疆雅美石开发进出口有限公司 | Composition used for preparing compound quartzite jewel board |
| CN109020302A (en) * | 2018-10-10 | 2018-12-18 | 广东中旗新材料股份有限公司 | It is a kind of using glass as artificial stone of major ingredient and preparation method thereof |
| CN109265072A (en) * | 2018-09-27 | 2019-01-25 | 佛山市高明区新意新石业有限公司 | A kind of multilayer artificial stone and preparation method thereof |
| CN110436823A (en) * | 2019-07-08 | 2019-11-12 | 广东意新家居有限责任公司 | A kind of composite board and preparation method thereof |
-
2019
- 2019-11-18 CN CN201911127397.XA patent/CN110950578A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2247139C2 (en) * | 2001-11-06 | 2005-02-27 | Доппель, Ко., Лтд. | Artificial stone and is structure |
| CN101474827A (en) * | 2009-01-09 | 2009-07-08 | 周显达 | Normal temperature manufacturing process for MMA high-intensity artificial stone special-shaped pot/trough |
| CN102329100A (en) * | 2010-07-12 | 2012-01-25 | 周军 | Artificial quartz stone checkered plate and process thereof |
| CN104291734A (en) * | 2014-09-24 | 2015-01-21 | 湖北硅金凝健康石材有限公司 | Artificial stone and preparation method thereof |
| CN106630757A (en) * | 2017-01-03 | 2017-05-10 | 新疆雅美石开发进出口有限公司 | Composition used for preparing compound quartzite jewel board |
| CN109265072A (en) * | 2018-09-27 | 2019-01-25 | 佛山市高明区新意新石业有限公司 | A kind of multilayer artificial stone and preparation method thereof |
| CN109020302A (en) * | 2018-10-10 | 2018-12-18 | 广东中旗新材料股份有限公司 | It is a kind of using glass as artificial stone of major ingredient and preparation method thereof |
| CN110436823A (en) * | 2019-07-08 | 2019-11-12 | 广东意新家居有限责任公司 | A kind of composite board and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL286876A (en) * | 2021-09-30 | 2023-04-01 | Caesarstone Ltd | Multilayered slab and method of making same |
| CN115594441A (en) * | 2021-12-17 | 2023-01-13 | 上海摩尔舒企业发展有限公司（Cn） | Artificial stone counter basin and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110436823B (en) | Composite board and preparation method thereof | |
| CN103833265B (en) | High-strength artificial quartz stone plate and preparation method thereof | |
| KR101471399B1 (en) | Fence manufactured from artificial stone using paste composition for manufacturing artificial stone of corrosion-resistance | |
| EP0454222B1 (en) | Use of sepiolite in manufacturing processes of fiber reinforced products containing mica. | |
| CN110950578A (en) | Artificial stone and preparation method thereof | |
| CN103011693A (en) | Quartz plate and preparation method thereof | |
| KR102371586B1 (en) | Manufacturing method of engineered stone with wave pattern | |
| CN113582610A (en) | Environment-friendly inorganic artificial stone made of tungsten tailings and preparation method of environment-friendly inorganic artificial stone | |
| CN103408251A (en) | Calcium sulfate-whisker compounded quartz stone board product and preparation method thereof | |
| CN113788647A (en) | Lightweight artificial quartz stone and production process thereof | |
| CN111015903A (en) | Preparation method of composite stone slab and composite stone slab | |
| CN108751805B (en) | Artificial glass stone | |
| CN110776260B (en) | Sintered inorganic quartz stone plate and production process thereof | |
| CN102199027B (en) | Rostone and preparation method thereof | |
| CN102029640B (en) | Production method for jade type macadam polymerization plate | |
| CN111960790A (en) | White marble waste slag used as environment-friendly material, coating, plate and building roadbed material and preparation method thereof | |
| CN111620601A (en) | Preparation method of artificial stone plate and artificial stone plate | |
| CN113416018B (en) | Ultraviolet-resistant plate and manufacturing method and application thereof | |
| CN111533488B (en) | Artificial stone plate and preparation method thereof | |
| CN108689639B (en) | Preparation method of artificial glass stone | |
| CN112094084A (en) | Inorganic artificial stone and preparation method thereof | |
| CN1974163A (en) | Composite stone material and its prepn process | |
| CN111348862A (en) | Artificial stone and preparation method thereof | |
| CN109278391B (en) | Wood grain wallpaper made of wood-plastic garbage and preparation method thereof | |
| CN115626791B (en) | Nano calcium enhanced additive, resin and artificial granite |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200403 |