CN111548052B - Artificial quartz stone plate and preparation method thereof - Google Patents
Artificial quartz stone plate and preparation method thereof Download PDFInfo
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- CN111548052B CN111548052B CN202010371728.0A CN202010371728A CN111548052B CN 111548052 B CN111548052 B CN 111548052B CN 202010371728 A CN202010371728 A CN 202010371728A CN 111548052 B CN111548052 B CN 111548052B
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- 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
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- 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
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- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/60—Agents for protection against chemical, physical or biological attack
- C04B2103/608—Anti-oxidants
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- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/54—Substitutes for natural stone, artistic materials or the like
- C04B2111/542—Artificial natural stone
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- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/80—Optical properties, e.g. transparency or reflexibility
- C04B2111/82—Coloured materials
Abstract
The invention relates to the technical field of building materials, in particular to an artificial quartz stone plate and a preparation method thereof, wherein the artificial quartz stone plate comprises the following components in parts by weight: 45-60 parts of quartz sand, 35-40 parts of quartz powder, 12-15 parts of unsaturated resin, 1-2 parts of silane coupling agent, 1-2 parts of curing agent, 1-2 parts of antioxidant, 2-5 parts of white slurry, 2-5 parts of grey paste, 2-3 parts of black powder and 3-8 parts of auxiliary agent, and has the advantages of obviously improved mechanical property and oxidation resistance, natural, harmonious and attractive patterns.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to an artificial quartz stone plate and a preparation method thereof.
Background
In the field of building decoration, stone becomes one of the main decorative materials due to the characteristics of beauty, elegance, strong decoration and the like. In the past, natural marbles are rich and natural in patterns, and are widely applied due to natural decoration effect and texture, but due to the limited resources, the problems of chromatic aberration, overproof radioactivity at different degrees, low hardness, easy scratching and the like exist in large-area paving, and the omnibearing development of the marble is limited to a certain extent.
The artificial quartz stone is a novel stone material which is formed by high-pressure pressing under a vacuum condition and is shaped under a medium-temperature state by taking quartz sand powder as a main filler and unsaturated polyester resin as an adhesive, and is an environment-friendly green novel building material and a decorative material which have no radioactive pollution and can be recycled.
Although the artificial quartz stone has rich and bright colors, no radiation, wear resistance, pressure resistance, scratch resistance, corrosion resistance, aging resistance and seepage resistance, the grade of the artificial quartz stone cannot be greatly improved because of no natural texture and color of the marble. At present, the checkered plate imitating the natural fish maw marble is available at home and abroad, but the color is relatively dull and the texture is unnatural. Meanwhile, the artificial quartz stone plate with the patterns has the advantages of complex process, low production efficiency, easy mutual permeation of colors in the pressing process of the plate and high reject ratio, thereby resulting in less supply and high selling price.
In addition, the formula material and the processing technology of the artificial quartz stone determine that the texture of the material is close to that of stone, and the artificial quartz stone belongs to a brittle polymer composite material, so that the artificial quartz stone is easy to crack due to improper external force and cold and hot internal stress in the processing and using processes, and the continuous use of the artificial quartz stone is influenced. And because of the product characteristics of the artificial fish maw, the unsaturated resin is high in dosage, so that the artificial fish maw is easy to oxidize.
How to prepare an artificial fish maw white quartz stone plate with natural, harmonious and beautiful patterns and obviously improved mechanical property and oxidation resistance is a problem to be solved urgently at present.
The Chinese patent application CN106630743A discloses a natural fish maw-like quartz stone plate and a manufacturing method thereof, and the technical scheme is as follows: 50-55 parts of quartz sand with 40-120 meshes; quartz powder: 325 meshes, 30-35 parts; 10-12 parts of a binder; filler, 800 meshes, 3-5 parts; 0.5-1 part of color paste pigment; 0.2 part of dioctylphosphite titanium amine; the adhesive is prepared from the following raw materials in parts by weight: 65-70 parts of unsaturated resin, 25-30 parts of styrene, 5-10 parts of hydroxy o-dimethylamine and 1-3 parts of beta-plasticizer. This patent application beneficial effect: the fish maw-white fish maw has the texture effect of natural fish maw, has high qualification rate, produces products with clear and natural texture, has low cost and high qualification rate, and has high economic and social benefits. However, the quartz stone plate prepared by the patent application has poor mechanical property and oxidation resistance.
Chinese patent CN103204659A discloses a high-strength artificial quartz stone plate and a production process thereof, wherein the high-strength artificial quartz stone plate is prepared from the following raw materials in parts by weight: 40-60 parts of 4-10-mesh quartz sand, 25-35 parts of 400-600-mesh quartz powder, 30-40 parts of adhesive, 10-20 parts of cullet, 5-10 parts of aluminum silicate fiber, 10-15 parts of organic bentonite, 20-25 parts of zirconia ceramic powder, 30-40 parts of water glass, 15-20 parts of fly ash, 0.5-1 part of isopropyl tri (dioctyl pyrophosphoryl acyloxy) titanate and 0.2-0.3 part of pigment. The artificial quartz stone plate produced by the method has the advantages of light weight, uniform density, bright color, rich patterns, high strength, high wear resistance, high impact resistance, good heat resistance, good weather resistance, difficult deformation, scratch resistance, ageing resistance, difficult color entry, environmental protection, no pollution and the like, is high in performance indexes in all aspects of organic solvents such as acid and alkali resistance, salt mist resistance, gasoline resistance and the like, is durable, and completely achieves the effect of high-simulation natural stone. However, the quartz stone plate prepared by the method has poor oxidation resistance and needs to be further improved in mechanical property.
The Chinese patent application CN104496272A discloses an anti-aging artificial quartz stone plate and a manufacturing method thereof, wherein the artificial quartz stone plate comprises the following components in parts by weight: 40-90 parts of 3-80-mesh quartz stone, 30-70 parts of 325-mesh quartz powder, 5-15 parts of cullet, 5-10 parts of unsaturated resin, 0.1-2 parts of light stabilizer, 0.1-2 parts of antioxidant, 0.3-2 parts of coupling agent, 0.3-2 parts of curing agent and 0.1-1 part of pigment. The application of the patent adds the light stabilizer and the antioxidant in the preparation process, improves the ageing resistance of the artificial quartz stone plate, has good physical property and chemical property and long service life, and simultaneously, the manufacturing method of the application of the patent is simple and is suitable for industrial production. According to the application, an antioxidant and a light stabilizer are required to be added at the same time, the cost is high, and the mechanical property and the pattern naturalness of the prepared quartz stone plate are further improved.
Therefore, it is necessary to develop an artificial quartzite plate and a method for preparing the same, which can solve the above-mentioned problems.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the artificial quartz stone plate with obviously improved mechanical property and oxidation resistance, natural, harmonious and beautiful patterns and the preparation method thereof.
The invention is realized by the following technical scheme:
an artificial quartz stone plate comprises the following components in parts by weight: 45-60 parts of quartz sand, 35-40 parts of quartz powder, 12-15 parts of unsaturated resin, 1-2 parts of silane coupling agent, 1-2 parts of curing agent, 1-2 parts of antioxidant, 2-5 parts of white slurry, 2-5 parts of grey paste, 2-3 parts of black powder and 3-8 parts of auxiliary agent.
Preferably, the mesh number of the quartz sand is 40-100 meshes.
More preferably, the quartz sand consists of the following components in parts by weight: 20-30 parts of 40-70-mesh quartz sand, 25-35 parts of 60-80-mesh quartz sand and 15-20 parts of 90-100-mesh quartz sand.
Preferably, the mesh number of the quartz powder is 120-400 meshes.
More preferably, the quartz powder consists of the following components in parts by weight: 30-40 parts of 120-sand 180-mesh quartz powder, 20-30 parts of 200-sand 280-mesh quartz powder, 25-35 parts of 240-sand 320-mesh quartz powder and 10-15 parts of 320-sand 400-mesh quartz powder.
Preferably, the unsaturated resin is a thermosetting unsaturated resin.
More preferably, the thermosetting unsaturated resin is an unsaturated polyester resin.
More preferably, the unsaturated polyester resin is at least one of ortho-benzene type unsaturated polyester resin, meta-benzene type unsaturated polyester resin and bisphenol A type unsaturated polyester resin.
More preferably, the unsaturated polyester resin has a solids content of 50-65%.
When the solid content of the unsaturated polyester resin is within the range of 50-65%, the mechanical property of the artificial quartz stone plate is obviously improved, and the patterns are more natural and coordinated.
Preferably, the curing agent is at least one of tert-butyl peroxy-2-ethylhexanoate, tert-butyl peroxybenzoate, benzoyl peroxide, water glass and fly ash.
More preferably, the curing agent is at least one of tert-butyl peroxy-2-ethylhexanoate, water glass and fly ash.
Preferably, the antioxidant is AT least two of antioxidant BHT, antioxidant 1222, AT-76, antioxidant 2246-S, AT-59, antioxidant 1035, antioxidant 1098 and diatomite.
More preferably, the antioxidant is a mixture of antioxidant BHT and diatomaceous earth.
More preferably, the mass ratio of the antioxidant BHT to the diatomite is 1-3: 1.
When the antioxidant is a mixture of antioxidant BHT and diatomite, the mechanical property and the antioxidant property of the artificial quartz stone plate are obviously improved.
Preferably, the auxiliary agent is at least one of sodium titanate whisker, silicon carbide whisker, nano silicon dioxide and cellulose.
More preferably, the auxiliary agent is a mixture of sodium titanate whiskers and cellulose.
More preferably, the mass ratio of the sodium titanate whiskers to the cellulose is 1-3: 2.
More preferably, the cellulose is a mixture of nanocellulose and nanocellulose.
More preferably, the mass ratio of the nanocellulose and the nanocellulose is 2-4: 1.
The invention also relates to a preparation method of the artificial quartz stone plate, which comprises the following steps:
(1) adding an antioxidant and white slurry into unsaturated resin, mixing, and adding a curing agent to obtain a substance A;
(2) uniformly mixing quartz sand, quartz powder, a silane coupling agent, an auxiliary agent and the substance A to obtain a substance B;
(3) placing the fish maw mold in a pressing plate mold, completely attaching two ends of the fish maw mold to the pressing plate mold, and then placing part of the substance B in the pressing plate mold to be paved;
(4) taking out the fish maw white mold to obtain grooves left on part of the material B by the fish maw white mold, spraying black powder on one side or two sides of the part of the material B with the grooves in the vertical direction, pouring the gray slurry into the rest of the material B, and mixing to obtain a material C;
(5) and (3) placing the substance C in the groove to be paved, carrying out vacuum high-frequency vibration pressing on the pressing plate die, and curing to obtain the material C.
Preferably, the step (2) includes the steps of: and (3) uniformly mixing the quartz sand, the quartz powder, the silane coupling agent and the auxiliary agent with the substance A in sequence to obtain a substance B.
Preferably, the portion of substance B in step (3) is 70-90% substance B.
Preferably, the specific process for performing vacuum high-frequency vibration pressing on the pressing plate mold in the step (5) comprises vacuumizing to-0.08 to-0.1 MPa, vibrating at the vibration frequency of 30-48Hz for 160-200s, and opening a vacuum valve to obtain the product.
Preferably, the curing temperature in the step (5) is 80-100 ℃, and the curing time is 60-100 min.
The invention has the beneficial effects that:
the content of the unsaturated resin is related to the oxidation resistance and the mechanical property, and when the content of the unsaturated resin is higher, the mechanical property of the quartz stone plate is higher, but the oxidation resistance is poorer. The invention optimizes the raw material components and the weight parts of the components, and improves the oxidation resistance and the mechanical property of the material by reducing the content of unsaturated resin, optimizing the antioxidant component and adding an auxiliary agent.
When the antioxidant is a mixture of antioxidant BHT and diatomite, the mechanical property and the antioxidant property of the artificial quartz stone plate are obviously improved.
According to the invention, the auxiliary agent is added, the composition of the auxiliary agent is optimized, and when the auxiliary agent is a mixture of sodium titanate whisker and cellulose, the mechanical property of the quartz stone plate is further improved, and the patterns are more natural and coordinated. Especially, when the cellulose is the mixture of nano cellulose and micron cellulose, the mechanical property and the pattern effect of the board are greatly improved.
According to the invention, the composition of quartz sand and quartz powder is optimized, and the mechanical properties of the quartz stone plate are further improved by reasonably matching different particle sizes.
The invention optimizes the adding sequence of the raw materials and the vacuum high-frequency vibration pressing process, and improves the mechanical property and the pattern naturalness of the quartz stone plate.
Detailed Description
The invention will be further described with reference to specific embodiments, and the advantages and features of the invention will become apparent as the description proceeds. These examples are illustrative only and do not limit the scope of the present invention in any way. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention, and that such changes and modifications may be made without departing from the spirit and scope of the invention.
Example 1
An artificial quartz stone plate comprises the following components in parts by weight: 53 parts of 70-mesh quartz sand, 38 parts of 250-mesh quartz powder, 13 parts of ethylene isophthalate unsaturated polyester resin (with the solid content of 58%), 1511.5 parts of silane coupling agent A, 1.5 parts of tert-butyl peroxy-2-ethylhexanoate, 1.5 parts of antioxidant, 3.5 parts of white slurry, 3.5 parts of gray slurry, 2.5 parts of black powder and 5 parts of auxiliary agent.
The antioxidant is a mixture of antioxidant BHT and diatomite, and the mass ratio of the antioxidant BHT to the diatomite is 2: 1;
the auxiliary agent is a mixture of sodium titanate whiskers and cellulose (the mass ratio of the cellulose is nanocellulose: micron cellulose is 3:1), and the mass ratio of the sodium titanate whiskers to the cellulose is 1: 1.
The preparation method of the artificial quartz stone plate comprises the following steps:
(1) adding an antioxidant and white slurry into m-benzene unsaturated polyester resin, mixing, and adding tert-butyl peroxy-2-ethylhexanoate to obtain a substance A;
(2) uniformly mixing quartz sand, quartz powder, a silane coupling agent A151 and an auxiliary agent with the substance A in sequence to obtain a substance B;
(3) placing a fish maw mold in a pressing plate mold, completely attaching two ends of the fish maw mold to the pressing plate mold, and then placing 80% of the substance B in the pressing plate mold to be paved;
(4) taking out the fish maw white mold to obtain grooves left on part of the material B by the fish maw white mold, spraying black powder on one side or two sides of the part of the material B with the grooves in the vertical direction, pouring the gray slurry into the rest of the material B, and mixing to obtain a material C;
(5) and (3) paving the substance C in the groove, performing vacuum high-frequency vibration pressing on the pressing plate die by using a press, vacuumizing to-0.09 MPa, vibrating at a vibration frequency of 39Hz for 180s, opening a vacuum valve, and curing at 90 ℃ for 80min to obtain the material C.
Example 2
An artificial quartz stone plate comprises the following components in parts by weight: 45 parts of 40-mesh quartz sand, 35 parts of 120-mesh quartz powder, 12 parts of phthalic acid propylene glycol unsaturated polyester resin (with the solid content of 50%), 1711 parts of silane coupling agent A, 1 part of water glass, 1 part of antioxidant, 2 parts of white slurry, 2 parts of gray slurry, 2 parts of black powder and 3 parts of auxiliary agent.
The antioxidant is a mixture of antioxidant BHT and diatomite, and the mass ratio of the antioxidant BHT to the diatomite is 1: 1;
the auxiliary agent is a mixture of sodium titanate whiskers and cellulose (the mass ratio of the cellulose is nano cellulose to micron cellulose is 2:1), and the mass ratio of the sodium titanate whiskers to the cellulose is 1: 2.
The preparation method of the artificial quartz stone plate comprises the following steps:
(1) adding an antioxidant and white slurry into the o-benzene type unsaturated polyester resin, mixing, and adding water glass to obtain a substance A;
(2) uniformly mixing quartz sand, quartz powder, a silane coupling agent A171 and an auxiliary agent with the substance A in sequence to obtain a substance B;
(3) placing a fish maw mold in a pressing plate mold, completely attaching two ends of the fish maw mold to the pressing plate mold, and then placing 70% of the substance B in the pressing plate mold to be paved;
(4) taking out the fish maw white mold to obtain grooves left on part of the material B by the fish maw white mold, spraying black powder on one side or two sides of the part of the material B with the grooves in the vertical direction, pouring the gray slurry into the rest of the material B, and mixing to obtain a material C;
(5) and (3) paving the substance C in the groove, performing vacuum high-frequency vibration pressing on the pressing plate die by using a press, vacuumizing to-0.08 MPa, vibrating at the vibration frequency of 30Hz for 160s, opening a vacuum valve, and curing at 80 ℃ for 60min to obtain the material C.
Example 3
An artificial quartz stone plate comprises the following components in parts by weight: 60 parts of 100-mesh quartz sand, 40 parts of 400-mesh quartz powder, 15 parts of Fuli FL-197 bisphenol A type unsaturated polyester resin (with the solid content of 61%), 1722 parts of silane coupling agent A, 2 parts of fly ash, 2 parts of antioxidant, 5 parts of white slurry, 5 parts of gray slurry, 3 parts of black powder and 8 parts of auxiliary agent.
The antioxidant is a mixture of antioxidant BHT and diatomite, and the mass ratio of the antioxidant BHT to the diatomite is 3: 1;
the auxiliary agent is a mixture of sodium titanate whisker and cellulose (the mass ratio of the cellulose is nano cellulose to micron cellulose is 4:1), and the mass ratio of the sodium titanate whisker to the cellulose is 3: 2.
The preparation method of the artificial quartz stone plate comprises the following steps:
(1) adding an antioxidant and white slurry into bisphenol A type unsaturated polyester resin, mixing, and adding fly ash to obtain a substance A;
(2) uniformly mixing quartz sand, quartz powder, a silane coupling agent A172 and an auxiliary agent with the substance A in sequence to obtain a substance B;
(3) placing a fish maw mold in a pressing plate mold, completely attaching two ends of the fish maw mold to the pressing plate mold, and then placing 90% of the substance B in the pressing plate mold to be paved;
(4) taking out the fish maw white mold to obtain grooves left on part of the material B by the fish maw white mold, spraying black powder on one side or two sides of the part of the material B with the grooves in the vertical direction, pouring the gray slurry into the rest of the material B, and mixing to obtain a material C;
(5) and (3) paving the substance C in the groove, performing vacuum high-frequency vibration pressing on the pressing plate die by using a press, vacuumizing to-0.1 MPa, vibrating at the vibration frequency of 48Hz for 200s, opening a vacuum valve, and curing at 100 ℃ for 100min to obtain the material C.
Example 4
The difference from the embodiment 1 lies in that the composition of the quartz sand is different, and specifically, the quartz sand comprises the following components in parts by weight: 20 parts of 40-70 mesh quartz sand, 25 parts of 60-80 mesh quartz sand and 15 parts of 90-100 mesh quartz sand;
example 5
The difference from the embodiment 1 lies in the composition of the quartz powder, specifically, the quartz powder comprises the following components in parts by weight: 30 parts of 120-mesh 180-mesh quartz powder, 20 parts of 200-mesh 280-mesh quartz powder, 25 parts of 240-mesh 320-mesh quartz powder and 10 parts of 320-mesh 400-mesh quartz powder.
Example 6
The difference from the embodiment 1 lies in that the composition of the quartz sand and the quartz powder is different, and specifically, the quartz sand comprises the following components in parts by weight: 30 parts of 40-70 mesh quartz sand, 35 parts of 60-80 mesh quartz sand and 20 parts of 90-100 mesh quartz sand; the quartz powder comprises the following components in parts by weight: 40 parts of 120-mesh 180-mesh quartz powder, 30 parts of 200-mesh 280-mesh quartz powder, 35 parts of 240-mesh 320-mesh quartz powder and 15 parts of 320-mesh 400-mesh quartz powder.
Comparative example 1
The difference from the example 6 is only that the antioxidant is a mixture of antioxidant BHT and activated carbon, the mass ratio of the antioxidant BHT to the activated carbon is 2:1, and the rest conditions are the same.
Comparative example 2
The only difference from example 6 is that the auxiliary agent is a mixture of sodium titanate whiskers and cellulose (cellulose composition: nanocellulose: microcellulose mass ratio of 3:1), the mass ratio of the sodium titanate whiskers to the cellulose is 4:1, and the rest conditions are the same.
Comparative example 3
The difference from the example 6 is only that the auxiliary agent is a mixture of sodium titanate whisker and nanocellulose, the mass ratio of the sodium titanate whisker to the nanocellulose is 1:1, and the rest conditions are the same.
Comparative example 4
The difference from the example 6 is only that the adding sequence of the raw materials is different, and the rest conditions are the same, and the specific steps are as follows:
the preparation method of the artificial quartz stone plate comprises the following steps:
(1) adding an antioxidant and white slurry into m-benzene unsaturated polyester resin, mixing, and adding a silane coupling agent A151 to obtain a substance A;
(2) uniformly mixing quartz sand, quartz powder, an auxiliary agent and tert-butyl peroxy-2-ethylhexanoate with the substance A in sequence to obtain a substance B;
(3) placing a fish maw mold in a pressing plate mold, completely attaching two ends of the fish maw mold to the pressing plate mold, and then placing 80% of the substance B in the pressing plate mold to be paved;
(4) taking out the fish maw white mold to obtain grooves left on part of the material B by the fish maw white mold, spraying black powder on one side or two sides of the part of the material B with the grooves in the vertical direction, pouring the gray slurry into the rest of the material B, and mixing to obtain a material C;
(5) and (3) paving the substance C in the groove, performing vacuum high-frequency vibration pressing on the pressing plate die by using a press, vacuumizing to-0.09 MPa, vibrating at a vibration frequency of 39Hz for 180s, opening a vacuum valve, and curing at 90 ℃ for 80min to obtain the material C.
Test example 1
Impact resistance, compression strength, flexural strength and hardness tests of examples 1 to 6 and comparative examples 1 to 4: the mechanical property test adopts a WDW-300E microcomputer control electronic universal tester (Weihai Chengwei tester, Inc.) to test, the bending strength, the compressive strength and the impact resistance test respectively refer to national standards GB/T35160.2, GB/T35160.3 and GB/T35160.6, and the Mohs hardness test adopts a Mohs hardness tester and is purchased from Shanghai Biozhou scientific instruments, Inc. The results are shown in Table 1.
TABLE 1 impact strength, compression strength, flexural strength and hardness test results
Test example 2
Examples 1-6 and comparative example 1 were tested for oxidation resistance.
The test method comprises the following steps:
the test conditions refer to GB/T16259-2The blackboard temperature is 55 +/-3 ℃ and the relative humidity is 65% +/-5%.
After 1 month, a CS-210 precision color difference instrument (purchased from Hangzhou colorspectrum technologies, Inc.) was used to detect the change in color difference before and after oxidation. The results are shown in Table 2.
TABLE 2 Oxidation resistance test results
| Color difference | |
| Example 1 | 0.87 |
| Example 2 | 0.89 |
| Example 3 | 0.90 |
| Example 4 | 0.83 |
| Example 5 | 0.82 |
| Example 6 | 0.79 |
| Comparative example 1 | 0.85 |
The technical means disclosed by the scheme of the invention are not limited to the technical means disclosed by the technical means, and the technical scheme also comprises the technical scheme formed by any combination of the technical characteristics. While the foregoing is directed to embodiments of the present invention, it will be appreciated by those skilled in the art that various changes may be made in the embodiments without departing from the principles of the invention, and that such changes and modifications are intended to be included within the scope of the invention.
Claims (5)
1. The artificial quartz stone plate is characterized by comprising the following components in parts by weight: 45-60 parts of quartz sand, 35-40 parts of quartz powder, 12-15 parts of unsaturated resin, 1-2 parts of silane coupling agent, 1-2 parts of curing agent, 1-2 parts of antioxidant, 2-5 parts of white slurry, 2-5 parts of grey paste, 2-3 parts of black toner and 3-8 parts of auxiliary agent;
the quartz sand comprises the following components in parts by weight: 20-30 parts of 40-70-mesh quartz sand, 25-35 parts of 60-80-mesh quartz sand and 15-20 parts of 90-100-mesh quartz sand; the quartz powder comprises the following components in parts by weight: 30-40 parts of 120-sand 180-mesh quartz powder, 20-30 parts of 200-sand 280-mesh quartz powder, 25-35 parts of 240-sand 320-mesh quartz powder and 10-15 parts of 320-sand 400-mesh quartz powder;
the antioxidant is a mixture of antioxidant BHT and diatomite, and the mass ratio of the antioxidant BHT to the diatomite is 1-3: 1;
the auxiliary agent is a mixture of sodium titanate whiskers and cellulose, and the mass ratio of the sodium titanate whiskers to the cellulose is 1-3: 2; the cellulose is a mixture of nano cellulose and micron cellulose, and the mass ratio of the nano cellulose to the micron cellulose is 2-4: 1;
the preparation method of the artificial quartz stone plate comprises the following steps:
(1) adding an antioxidant and white slurry into unsaturated resin, mixing, and adding a curing agent to obtain a substance A;
(2) uniformly mixing quartz sand, quartz powder, a silane coupling agent, an auxiliary agent and the substance A to obtain a substance B;
(3) placing the fish maw mold in a pressing plate mold, completely attaching two ends of the fish maw mold to the pressing plate mold, and then placing part of the substance B in the pressing plate mold to be paved;
(4) taking out the fish maw white mold to obtain grooves left on part of the material B by the fish maw white mold, spraying black powder on one side or two sides of the part of the material B with the grooves in the vertical direction, pouring the gray slurry into the rest of the material B, and mixing to obtain a material C;
(5) and (3) placing the substance C in the groove to be paved, carrying out vacuum high-frequency vibration pressing on the pressing plate die, and curing to obtain the material C.
2. The artificial quartz stone panel according to claim 1, wherein the unsaturated resin is a thermosetting unsaturated resin; the curing agent is at least one of tert-butyl peroxy-2-ethylhexanoate, tert-butyl peroxybenzoate, benzoyl peroxide, water glass and fly ash.
3. The artificial quartz stone slab of claim 1, wherein the portion of material B in step (3) is 70-90% material B.
4. The artificial quartz stone plate as claimed in claim 1, wherein the specific process of performing vacuum high-frequency vibration pressing on the pressing plate mold in the step (5) comprises vacuumizing to-0.08 to-0.1 MPa, vibrating at a vibration frequency of 30 to 48Hz for 160-200s, and opening a vacuum valve.
5. The artificial quartz stone slab as set forth in claim 1, wherein the curing temperature in step (5) is 80-100 ℃, and the curing time is 60-100 min.
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| CN112573861A (en) * | 2021-02-03 | 2021-03-30 | 湖北钊晟新材料科技有限公司 | Quartz stone plate with low expansion coefficient and preparation method thereof |
| CN113831063B (en) * | 2021-11-17 | 2022-07-29 | 秦皇岛晶维石材有限公司 | Light quartz stone plate and preparation method thereof |
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