CN108455904B - Imitated marble and manufacturing process thereof - Google Patents
Imitated marble and manufacturing process thereof Download PDFInfo
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- CN108455904B CN108455904B CN201810161369.9A CN201810161369A CN108455904B CN 108455904 B CN108455904 B CN 108455904B CN 201810161369 A CN201810161369 A CN 201810161369A CN 108455904 B CN108455904 B CN 108455904B
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- marble
- stone powder
- polyester resin
- unsaturated polyester
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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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- 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
- C04B2111/545—Artificial marble
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Macromonomer-Based Addition Polymer (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses an imitation marble and a manufacturing process thereof, belonging to the technical field of imitation marbles, wherein the imitation marble comprises unsaturated polyester resin, stone powder, titanium dioxide and paint; the weight portion ratio of the unsaturated polyester resin to the stone powder is 1: 1-1.5; the ratio of the total weight parts of the unsaturated polyester resin and the stone powder to the weight parts of the titanium dioxide is 39.6-40.2: 1; the ratio of the total weight parts of the unsaturated polyester resin, the stone powder and the titanium dioxide to the weight parts of the paint is 99.6-100.3: 1. The marble-imitated obtained by the invention has the advantages of low production cost, lines and natural lines.
Description
Technical Field
The invention relates to the technical field of marble imitation, in particular to marble imitation and a manufacturing process thereof.
Background
The marble originally produced in the white limestone with black patterns in the province of Yunnan province can form a natural wash painting on the section, and the marble with formed patterns is usually selected in ancient times to make a picture screen or an inlaid picture. In modern times, more and more families adopt marble as an indoor and outdoor decorative surface, which not only has good decorative effect, but also has better durability, however, the marble has higher manufacturing cost, and causes great limitation to the application of the marble.
Therefore, the imitated marble with the grains and the natural grains has low manufacturing cost and wide commercial prospect.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the marble-imitated material which has the advantages of low manufacturing cost, lines and natural lines.
In order to achieve the first purpose, the invention provides the following technical scheme:
an imitation marble comprises unsaturated polyester resin, stone powder, titanium dioxide and paint;
the weight portion ratio of the unsaturated polyester resin to the stone powder is 1: 1-1.5;
the ratio of the total weight parts of the unsaturated polyester resin and the stone powder to the weight parts of the titanium dioxide is 39.6-40.2: 1;
the ratio of the total weight parts of the unsaturated polyester resin, the stone powder and the titanium dioxide to the weight parts of the paint is 99.6-100.3: 1.
According to the technical scheme, the stone powder and the titanium dioxide are used as main fillers, and the main component in the stone powder is calcium carbonate which is matched with the titanium dioxide, so that the hardness of the formed imitation marble is improved; while unsaturated polyester resin is used as the adhesion component and paint is used as the main texture source. The unsaturated polyester resin has low surface tension and is easy to flow, and the surface tension can be adjusted when the unsaturated polyester resin is mixed with stone powder, titanium dioxide and paint, so that bubbles mixed in the mixing process of the components are eliminated, and the uniformity of the obtained imitation marble is improved. The paint has various colors and bright color, and is used as a main source of grains in the imitation marble, so that the finally obtained imitation marble has natural grains which are more close to the natural grains of the marble.
In addition, the price of the unsaturated polyester resin, the stone powder, the titanium pigment and the paint is lower, so the manufacturing cost for producing the imitated marble is lower, and the imitated marble is more easily accepted by more consumers.
More preferably: the weight portion ratio of the unsaturated polyester resin to the stone powder is 1: 1-1.3;
the ratio of the total weight parts of the unsaturated polyester resin and the stone powder to the weight parts of the titanium dioxide is 39.9-40.2: 1;
the ratio of the total weight parts of the unsaturated polyester resin, the stone powder and the titanium dioxide to the weight parts of the paint is 99.6-100.1: 1.
Through the technical scheme, researches (test one) show that the imitation marble obtained in the range has more vivid and delicate appearance.
More preferably: the fineness of the stone powder is 550-650 meshes; the fineness of the titanium dioxide is 550-650 meshes.
Through the technical scheme, the stone powder and the titanium dioxide with the fineness have larger specific surface areas and more uniform textures, and the stone powder and the titanium dioxide are more easily and fully coated in the process of mutually mixing the unsaturated polyester resin and the paint, so that the obtained marble-imitated texture is more compact and the surface is smooth and flat.
More preferably: the composite material is formed by a carbon fiber network reinforcement and polypropylene, and the ratio of the total weight parts of the unsaturated polyester resin, the stone powder and the titanium dioxide to the weight parts of the reinforcing agent is 998-1000: 1.
Through the technical scheme, the composite material formed by the carbon fiber network reinforcement and the polypropylene has higher rigidity, lower expansibility, higher strength and deformation resistance, and after the composite material is matched with raw materials such as stone powder, titanium dioxide and the like to form the marble-imitated material, the marble-imitated material has better strength and bearing capacity.
More preferably: in the composite material formed by the carbon fiber network reinforcement and the polypropylene, the carbon fiber network reinforcement accounts for 25-26 wt%.
Through the technical scheme, researches (experiment II) show that when the carbon fiber network reinforcement in the composite material accounts for the weight proportion range, the artificial marble has better strength and bearing capacity.
The second purpose of the invention is to provide a manufacturing process of the imitated marble.
In order to achieve the second purpose, the invention provides the following technical scheme:
a process for manufacturing imitated marble comprises the following steps:
fully mixing unsaturated polyester resin, stone powder and titanium dioxide to form a first mixture;
step two, adding paint into the first mixture obtained in the step one, and performing soft mixing operation for 3-5s to form a second mixture;
and step three, curing and molding the second mixture in an environment with the temperature of-10-45 ℃, and sequentially carrying out alkali washing treatment, primary cleaning, trimming, polishing and secondary cleaning to obtain the marble-like material.
By the technical scheme, the temperature range for manufacturing the imitated marble is wide, is not easily limited, and is beneficial to industrialization. In the first step, the unsaturated polyester resin, the stone powder and the titanium dioxide are fully mixed, the mixing process is easy under the action of good flowability of the unsaturated polyester resin, and the uniformity of the obtained first mixture is good. And step two, adding the paint into the first mixture with uniform texture, and performing soft mixing operation to ensure that the paint and the first mixture are mixed naturally and show certain grains. And in the third step, the second mixture is cured and molded to form a primary shape of the imitation marble, impurities on the surface of the preliminarily formed imitation marble are cleaned after alkaline cleaning, residual impurities and alkali liquor are further removed after primary cleaning, and the imitation marble is formed after trimming, polishing and secondary cleaning.
More preferably: in the first step, the reinforcing agent is added and fully mixed.
By adopting the technical scheme, the mixing effect of the reinforcing agent, the unsaturated polyester resin, the stone powder and the titanium dioxide is improved.
More preferably: the rotating speed of the full mixing in the first step is 580-650rpm, and the mixing time is 25-40 min.
Through the technical scheme, the mixing sufficiency of the first mixture is improved under the mutual matching of the rotating speed and the mixing time.
More preferably: in the second step, the soft mixing operation is manual stirring.
Through above-mentioned technical scheme, help carrying out suitably mixing the paint that adds to the line in the messenger imitation marble has natural effect, thereby further dwindles the difference between its and natural marble.
More preferably: in the third step, the alkali liquor adopted in the alkali washing treatment is a sodium hydroxide solution, the concentration of the sodium hydroxide solution is 96-99%, the temperature of the sodium hydroxide solution is 12-14 ℃, and the time of the alkali washing treatment is 10-15 min.
By adopting the technical scheme, the sodium hydroxide solution with the specification is adopted for alkali washing, so that the effect of removing impurities on the surface of the formed imitation marble is better.
In conclusion, the invention has the following beneficial effects:
1. the unsaturated polyester resin, the stone powder and the titanium dioxide are low in price, so that the production cost is reduced;
2. adopting paint as a main source of the color of the imitation marble, and adding the paint by adopting soft manual stirring to ensure that the imitation marble has lines and natural lines which are similar to those of the natural marble;
3. because the unsaturated polyester resin bonds the stone powder and the titanium dioxide better, the integrity of the formed imitated marble is improved;
4. the composite material formed by the carbon fiber network reinforcement and the polypropylene is added, and the composite material directly forms good matching effect with the unsaturated polyester resin, the stone powder and the titanium dioxide, so that the mechanical strength of the imitated marble is improved, and the bearing capacity of the imitated marble is increased.
Detailed Description
The present invention will be described in detail with reference to examples.
Example 1: an artificial marble comprises unsaturated polyester resin, stone powder, titanium dioxide and paint, wherein the fineness of the stone powder is 550 meshes; the fineness of the titanium dioxide is 650 meshes. The weight portion ratio of the unsaturated polyester resin to the stone powder is 1: 1; the ratio of the total weight parts of the unsaturated polyester resin and the stone powder to the weight parts of the titanium dioxide is 39.6: 1; the ratio of the total weight parts of the unsaturated polyester resin, the stone powder and the titanium dioxide to the weight parts of the paint is 99.6: 1.
The process for manufacturing the imitated marble comprises the following steps:
fully mixing unsaturated polyester resin, stone powder and titanium dioxide at the rotating speed of 580rpm for 40min to form a first mixture;
step two, adding paint into the first mixture obtained in the step one, and carrying out soft manual stirring for 3-5s to form a second mixture;
and step three, solidifying and molding the second mixture in an environment with the temperature of-10-45 ℃, sequentially carrying out alkali washing treatment, wherein the alkali liquor is a sodium hydroxide solution, the concentration of the sodium hydroxide solution is 96%, the temperature of the sodium hydroxide solution is 14 ℃, the time of the alkali washing treatment is 15min, and carrying out primary cleaning, trimming, polishing and secondary cleaning to obtain the marble-like product.
Example 2: an artificial marble is different from the marble in example 1 in that the weight part ratio of unsaturated polyester resin to stone powder is 1: 1.2, the weight part ratio of the total weight parts of unsaturated polyester resin and stone powder to the weight part ratio of titanium dioxide is 40: 1, and the weight part ratio of the total weight parts of unsaturated polyester resin, stone powder and titanium dioxide to the weight part ratio of paint is 100: 1.
Example 3: an artificial marble differing from example 1 in that the weight parts ratio of the unsaturated polyester resin to the stone powder was 1: 1.3; the ratio of the total weight parts of the unsaturated polyester resin and the stone powder to the weight parts of the titanium dioxide is 40.2: 1; the ratio of the total weight parts of the unsaturated polyester resin, the stone powder and the titanium dioxide to the weight parts of the paint is 100.1: 1.
Example 4: an artificial marble was different from example 1 in that the fineness of stone powder and titanium dioxide powder was 600 mesh.
Example 5: an artificial marble differing from example 1 in that the fineness of stone powder was 650 mesh; the fineness of the titanium dioxide is 550 meshes.
Example 6: the marble-imitated is different from the marble-imitated in embodiment 1 in that the marble-imitated further comprises a reinforcing agent, the reinforcing agent is a composite material formed by a carbon fiber network reinforcing body and polypropylene, the ratio of the total weight parts of the unsaturated polyester resin, the stone powder and the titanium dioxide to the reinforcing agent is 998: 1, and the carbon fiber network reinforcing body accounts for 26 wt%. The enhancer is added in step one and mixed thoroughly.
Example 7: an artificial marble is different from the marble in example 6 in that the ratio of the total weight parts of unsaturated polyester resin, stone powder and titanium dioxide to the weight parts of a composite material formed by a carbon fiber network reinforcement and polypropylene is 999: 1, wherein the carbon fiber network reinforcement accounts for 25 wt%.
Example 8: an artificial marble was distinguished from example 7 in that the ratio of the total weight parts of unsaturated polyester resin, stone powder, titanium dioxide to the weight parts of the composite material formed of carbon fiber network reinforcement and polypropylene was 1000: 1, wherein the carbon fiber network reinforcement accounted for 25.5 wt%.
Example 9: a marble-imitated, which is different from example 1 in that in the process for making the marble-imitated, the rotation speed of the intensive mixing is 600rpm and the mixing time is 30min in the first step, to form a first mixture.
Example 10: a marble-imitated, which is different from example 1 in that in the process for manufacturing the marble-imitated, the rotation speed of the intensive mixing is 650rpm and the mixing time is 25min in the first step, to form a first mixture.
Example 11: an artificial marble was distinguished from example 1 in that in step three, the concentration of the sodium hydroxide solution was 99%, the temperature of the sodium hydroxide solution was 12 ℃, and the time of the alkali washing treatment was 10 min.
Example 12: an artificial marble was distinguished from example 1 in that in step three, the concentration of the sodium hydroxide solution was 98%, the temperature of the sodium hydroxide solution was 13 ℃, and the time of the alkali washing treatment was 12 min.
Comparative example 1: an artificial marble differing from example 1 in that the ratio of the parts by weight of the unsaturated polyester resin to the stone powder was 1: 5; the ratio of the total weight parts of the unsaturated polyester resin and the stone powder to the weight parts of the titanium dioxide is 20: 1; the ratio of the total weight parts of the unsaturated polyester resin, the stone powder and the titanium dioxide to the weight parts of the paint is 99.6: 1.
Comparative example 2: an imitation marble was different from example 1 in that both the stone powder and the titanium dioxide powder had a fineness of 200 mesh.
Comparative example 3: the marble-imitated material is different from the marble-imitated material in the embodiment 1 in that unsaturated polyester resin, stone powder, titanium dioxide and paint are mixed for 40min at the rotating speed of 580rpm and then are cured and molded.
Comparative example 4: a marble-imitated was obtained, which was different from example 1 in that in the second step, a stirrer was used to stir at 600rpm for 3 seconds.
Test one: appearance test
Test samples: the artificial marbles of examples 1 to 11 were selected as test samples 1 to 11, and the artificial marbles of comparative examples 2 to 4 were selected as control samples 2 to 4.
The test method comprises the following steps: the appearances of the test samples 1 to 11 and the control samples 2 to 4 were observed and compared with those of natural marble, respectively, and the degree of similarity was compared, recorded and analyzed.
And (3) test results: the appearances of the test samples 1 to 11 and the control samples 2 to 4 are similar to those of the natural marble to the extent shown in Table 1.
TABLE 1 appearance of test samples 1-11 and control samples 2-4, degree of similarity to natural marble
As can be seen from Table 1, the test specimens 1 to 11 had smooth and flat appearance and high similarity to natural marble, and it was difficult to distinguish the test specimens 1 to 11. The appearance of the comparison sample 2 is not smooth and uneven, the similarity with the natural marble is low, and the fineness of the stone powder and the titanium dioxide is high, so that the similarity between the comparison sample 2 and the natural marble is low. The appearance of the comparative sample 3 was not smooth and uneven, and the similarity to the natural marble was low, which indicates that the unsaturated polyester resin, the stone powder, the titanium dioxide powder, and the paint were mixed together at a rotation speed of 580rpm for 40min, which easily resulted in non-uniform mixing, and finally resulted in the low similarity between the comparative sample 3 and the natural marble. The comparative sample 4 has a smooth and flat appearance but blurred lines and has a low similarity to natural marble, which means that after the paint is added, mechanical stirring at a high rotation speed is adopted, so that the mixing is too full, the lines are not natural enough, and finally the similarity to natural marble is low.
And (2) test II: mechanical property test
Test samples: the artificial marbles of examples 1 to 11 were selected as test samples 1 to 11, and the artificial marble of comparative example 1 was selected as control sample 1.
The test method comprises the following steps: in the test samples 1-11, three parallel samples are prepared for each test sample, and the compression strength test and the bending strength test are respectively carried out, three parallel samples are prepared in the control sample 1, and the compression strength test and the bending strength test are respectively carried out, and after the test data are weighted and averaged, the test data are recorded and analyzed.
And (3) test results: the compression strength limit and the bending strength of the test samples 1 to 11 and the control sample 1 are shown in Table 2.
TABLE 2 ultimate compressive Strength and flexural Strength in test samples 1 to 11 and control sample 1
| Sample (I) | Ultimate compression strength (MPa) | Flexural Strength (MPa) |
| Test sample 1 | 89.3 | 57.6 |
| Test sample 2 | 89.7 | 57.8 |
| Test sample 3 | 89.2 | 57.5 |
| Test sample 4 | 89.5 | 57.3 |
| Test sample 5 | 89.3 | 57.2 |
| Test sample 6 | 89.9 | 57.9 |
| Test sample 7 | 90.1 | 58.3 |
| Test specimen 8 | 90.2 | 58.1 |
| Test sample 9 | 90.1 | 58.1 |
| Test specimen 10 | 89.5 | 57.5 |
| Test specimen 11 | 89.3 | 57.3 |
| Test specimen 12 | 89.3 | 57.2 |
| Control 1 | 72.1 | 43.2 |
As can be seen from Table 2, the limit values of the compressive strength in the test samples 1 to 11 are higher than that of the control sample 1, and the bending strength in the test samples 1 to 11 is higher than that of the control sample 1. This shows that the compressive strength and flexural strength of the simulated marble prepared by the method of comparative example 1 are not ideal enough, and shows that the proportions of the unsaturated polyester resin, the stone powder, the titanium dioxide and the paint have a great influence on the compressive strength and the flexural strength of the simulated marble.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (5)
1. The imitation marble is characterized by consisting of unsaturated polyester resin, stone powder, titanium dioxide, paint and reinforcing agent;
the weight portion ratio of the unsaturated polyester resin to the stone powder is 1: 1-1.5;
the ratio of the total weight parts of the unsaturated polyester resin and the stone powder to the weight parts of the titanium dioxide is 39.6-40.2: 1;
the ratio of the total weight parts of the unsaturated polyester resin, the stone powder and the titanium dioxide to the weight parts of the paint is 99.6-100.3: 1;
the ratio of the total weight parts of the unsaturated polyester resin, the stone powder and the titanium dioxide to the weight parts of the reinforcing agent is 998-1000: 1;
the reinforcing agent is a composite material formed by a carbon fiber network reinforcing body and polypropylene, and in the composite material formed by the carbon fiber network reinforcing body and the polypropylene, the carbon fiber network reinforcing body accounts for 25-26 wt%;
the manufacturing process of the imitated marble comprises the following steps:
fully mixing unsaturated polyester resin, stone powder, titanium dioxide and a reinforcing agent to form a first mixture;
step two, adding paint into the first mixture obtained in the step one, and performing soft mixing operation for 3-5s to form a second mixture;
and step three, curing and molding the second mixture in an environment with the temperature of-10-45 ℃, and sequentially carrying out alkali washing treatment, primary cleaning, trimming, polishing and secondary cleaning to obtain the marble-like material.
2. The artificial marble of claim 1, wherein the weight ratio of the unsaturated polyester resin to the stone powder is 1: 1-1.3;
the ratio of the total weight parts of the unsaturated polyester resin and the stone powder to the weight parts of the titanium dioxide is 39.9-40.2: 1;
the ratio of the total weight parts of the unsaturated polyester resin, the stone powder and the titanium dioxide to the weight parts of the paint is 99.6-100.1: 1.
3. The imitation marble of claim 1, wherein the fineness of said stone powder is 550-650 mesh; the fineness of the titanium dioxide is 550-650 meshes.
4. The marble-like article of claim 1, wherein the rotation speed for mixing in step one is 580-650rpm, and the mixing time is 25-40 min.
5. The marble-like article of claim 4, wherein in the second step, the gentle mixing operation is manual stirring.
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| CN111421996A (en) * | 2020-04-22 | 2020-07-17 | 利高工艺品（厦门）有限公司 | Marble-imitated handicraft with transparent layer and preparation method thereof |
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| CN1045948A (en) * | 1989-03-28 | 1990-10-10 | 广元市实用技术研究所 | Production method of a kind of polyester decorative lamination decoration board and products thereof |
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