CN112723868A - 3D printing method of rock plate - Google Patents
3D printing method of rock plate Download PDFInfo
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- CN112723868A CN112723868A CN202110337240.0A CN202110337240A CN112723868A CN 112723868 A CN112723868 A CN 112723868A CN 202110337240 A CN202110337240 A CN 202110337240A CN 112723868 A CN112723868 A CN 112723868A
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Abstract
The invention discloses a 3D printing method of a rock plate, which comprises the following steps: s1, preparing a rock plate slurry, wherein the rock plate slurry is prepared by mixing the following raw materials in parts by weight: 70-80 parts of rock plate powder, 12-20 parts of photosensitive resin, 2-5 parts of silica sol, 2-5 parts of dispersing agent and 0.2-0.8 part of photoinitiator; s2, pouring the rock plate slurry into a photocuring 3D printer, performing 3D printing forming according to the digital model, and printing layer by layer to obtain a blank body; s3, carrying out photo-treatment and curing on the blank under the irradiation of ultraviolet light of 360-400 nm for 4-10 h to obtain a rough blank; and S4, sintering the rough blank to obtain the rock plate. The 3D printing method of the rock plate has good integral formability and controllability, the printed rock plate has good compressive strength, the cracking phenomenon is not easy to occur, the performance of the printed rock plate is more uniform and stable, the preparation process of the rock plate is enriched, and the industrial production is easy to realize.
Description
Technical Field
The invention relates to the technical field of rock plates, in particular to a 3D printing method of a rock plate.
Background
With the development of economy and the improvement of the living standard of people, the building ground decoration industry is more and more emphasized, and occupies a main part in home decoration. The rock plate is used as a novel decorative material and is widely applied to the field of home decoration.
At present, in recent years, the concept of "3D printing" is well known and becomes the most popular technical term in the scientific field. Theoretically, only one 3D printer and some materials are needed to convert all your ideas into realistic products. Cars, houses, bones, and even food can be completed by 3D printing. The 3D printing technology of ceramics is a novel ceramic forming manufacturing process, which can rapidly prepare ceramic parts with complex shapes without a mould,
3D printing is essentially a rapid prototyping technique, which is a process in which a physical model is built up of powder material by a prototyping machine. Different from the traditional material removing processing mode in the manufacturing industry, the 3D printing follows the addition principle, namely the material object is formed by powder overlapping layer by layer. The properties of the powder material have a significant influence on the shaped article. In the 3D powder printing process, defects such as uneven structure, cracking, holes and the like of a formed part are easy to occur due to the problems of poor powder flowability, large shrinkage coefficient and the like, so that the strength cannot meet the requirement.
Disclosure of Invention
The 3D printing method for the rock plate is good in overall formability and controllability, and the printed rock plate has good compressive strength.
The invention adopts the following technical scheme for solving the technical problems:
a method of 3D printing of a rock plate, comprising the steps of:
s1, preparing a rock plate slurry, wherein the rock plate slurry is prepared by mixing the following raw materials in parts by weight: 70-80 parts of rock plate powder, 12-20 parts of photosensitive resin, 2-5 parts of silica sol, 2-5 parts of dispersing agent and 0.2-0.8 part of photoinitiator;
s2, pouring the rock plate slurry into a photocuring 3D printer, performing 3D printing forming according to the digital model, and printing layer by layer to obtain a blank body;
s3, carrying out photo-treatment and curing on the blank under the irradiation of ultraviolet light of 360-400 nm for 4-10 h to obtain a rough blank;
and S4, sintering the rough blank to obtain the rock plate.
In the present invention, 370nm light was used for printing in step S2, and 370nm light was used for curing in step S3, indicating that light was used in both the printing and curing stages.
As a preferable scheme, the rock plate slurry is prepared by mixing the following raw materials in parts by weight: 72-80 parts of rock plate powder, 15-20 parts of photosensitive resin, 3-5 parts of silica sol, 2-4 parts of dispersing agent and 0.3-0.8 part of photoinitiator.
As a preferable scheme, the rock plate slurry is prepared by mixing the following raw materials in parts by weight: 74.5 parts of rock plate powder, 18 parts of photosensitive resin, 4 parts of silica sol, 3 parts of dispersing agent and 0.5 part of photoinitiator.
As a preferable scheme, the rock plate powder is prepared by mixing the following raw materials in parts by weight: 65-72 parts of aluminum oxide, 10-15 parts of titanium dioxide, 6-9 parts of modified carbon fiber, 6-9 parts of zirconium dioxide and 1-5 parts of talcum powder.
As a preferable scheme, the rock plate powder is prepared by mixing the following raw materials in parts by weight: 70 parts of aluminum oxide, 11 parts of titanium dioxide, 8 parts of modified carbon fiber, 7 parts of zirconium dioxide and 4 parts of talcum powder.
As a preferable scheme, the preparation method of the modified carbon fiber comprises the following steps:
s11, adding 2-5 parts by weight of carbon fibers into a Soxhlet extractor filled with 6-10 parts by weight of acetone, extracting at 50-80 ℃ for 5-10 hours, taking out, soaking for 40-80 min by using 10-20 parts by weight of deionized water, filtering, and drying to obtain pretreated carbon fibers;
s12, adding 2-5 parts by weight of pretreated carbon fiber, 0.05-0.15 part by weight of silane coupling agent KH570 and 0.8-2 parts by weight of sodium alginate into 20-30 parts by weight of absolute ethyl alcohol, heating to 120-160 ℃, preserving heat for 10-20 hours, cooling to room temperature, carrying out ultrasonic treatment at 400-800W for 15-40 min, filtering, washing with deionized water for 2-4 times, and drying to obtain the modified carbon fiber.
The inventor of the invention finds that the carbon fiber is subjected to degumming and impurity removal and is grafted with sodium alginate, so that stress concentration can be effectively avoided, the strength is improved, and the modified carbon fiber can be uniformly dispersed in rock plate slurry.
Meanwhile, the applicant finds that the modified carbon fiber can be tightly combined with photosensitive resin (acrylic resin), when the carbon fiber is printed, part of the photosensitive resin can be filled in gaps of the modified carbon fiber to play a role in filling, bonding and fixing, and part of the photosensitive resin is tightly combined with the grafted sodium alginate through intermolecular force, so that the strength of the printed rock plate is further improved.
Preferably, the photosensitive resin is one or more of hydroxyethyl methacrylate, trimethylolpropane triacrylate and 1, 6-hexanediol diacrylate.
As a preferable scheme, the photoinitiator is one or more of 1-hydroxycyclohexyl phenyl ketone, bis 2, 6-difluoro-3-pyrrolyl phenyl titanocene and alpha-hydroxyisobutyrophenone; the dispersing agent is one or more of tetramethylammonium hydroxide, EFKA4046 and BYK 111.
Preferably, the wavelength of light is 360-400 nm when the photo-curing 3D printer prints in step S2, and the exposure time of each layer is 7-12S.
As a preferable scheme, the sintering temperature is 1200-1500 ℃, and the sintering time is 2-6 h.
The invention has the beneficial effects that: (1) the 3D printing method of the rock plate has good integral formability and controllability, the printed rock plate has good compressive strength, the cracking phenomenon is not easy to occur, the performance of the printed rock plate is more uniform and stable, the preparation process of the rock plate is enriched, and the industrial production is easy to realize; (2) according to the invention, the carbon fiber is subjected to glue removal and impurity removal, and is grafted with sodium alginate, so that stress concentration can be effectively avoided, the strength is improved, and the modified carbon fiber can be uniformly dispersed in the rock plate slurry.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the present invention, the parts are all parts by weight unless otherwise specified.
Example 1
A method of 3D printing of a rock plate, comprising the steps of:
s1, preparing a rock plate slurry, wherein the rock plate slurry is prepared by mixing the following raw materials in parts by weight: 74.5 parts of rock plate powder, 18 parts of photosensitive resin, 4 parts of silica sol, 3 parts of dispersing agent and 0.5 part of photoinitiator;
s2, pouring the rock plate slurry into a photocuring 3D printer, performing 3D printing forming according to the digital model, and printing layer by layer to obtain a blank body; when the step S2 photo-curing 3D printer prints, the wavelength of light is 370nm, and the exposure time of each layer is 10S;
s3, carrying out photo-treatment and curing on the blank under the irradiation of 370nm ultraviolet light for 8h to obtain a rough blank;
s4, sintering the rough blank at 1400 ℃ for 4h to obtain the rock plate.
The rock plate powder is prepared by mixing the following raw materials in parts by weight: 70 parts of aluminum oxide, 11 parts of titanium dioxide, 8 parts of modified carbon fiber, 7 parts of zirconium dioxide and 4 parts of talcum powder. The preparation method of the modified carbon fiber comprises the following steps:
s11, adding 4 parts by weight of carbon fiber into a Soxhlet extractor filled with 8 parts by weight of acetone, extracting at 70 ℃ for 8 hours, taking out, soaking for 50min by using 18 parts by weight of deionized water, filtering, and drying to obtain pretreated carbon fiber;
s12, adding 3 parts by weight of pretreated carbon fiber, 0.1 part by weight of silane coupling agent KH570 and 1.2 parts by weight of sodium alginate into 25.7 parts by weight of absolute ethyl alcohol, heating to 150 ℃, preserving heat for 12 hours, cooling to room temperature, performing 500W ultrasonic treatment for 30min, filtering, washing with deionized water for 3 times, and drying to obtain the modified carbon fiber.
The photosensitive resin is trimethylolpropane triacrylate.
The photoinitiator is 1-hydroxycyclohexyl phenyl ketone.
The dispersant is BYK 111.
Example 2
A method of 3D printing of a rock plate, comprising the steps of:
s1, preparing a rock plate slurry, wherein the rock plate slurry is prepared by mixing the following raw materials in parts by weight: 70 parts of rock plate powder, 12 parts of photosensitive resin, 2 parts of silica sol, 2 parts of dispersing agent and 0.2 part of photoinitiator;
s2, pouring the rock plate slurry into a photocuring 3D printer, performing 3D printing forming according to the digital model, and printing layer by layer to obtain a blank body; when the step S2 photo-curing 3D printer prints, the wavelength of light is 370nm, and the exposure time of each layer is 10S;
s3, carrying out photo-treatment and curing on the blank under the irradiation of 370nm ultraviolet light for 8h to obtain a rough blank;
s4, sintering the rough blank at 1400 ℃ for 4h to obtain the rock plate.
The rock plate powder is prepared by mixing the following raw materials in parts by weight: 70 parts of aluminum oxide, 11 parts of titanium dioxide, 8 parts of modified carbon fiber, 7 parts of zirconium dioxide and 4 parts of talcum powder.
The preparation method of the modified carbon fiber comprises the following steps:
s11, adding 4 parts by weight of carbon fiber into a Soxhlet extractor filled with 8 parts by weight of acetone, extracting at 70 ℃ for 8 hours, taking out, soaking for 50min by using 18 parts by weight of deionized water, filtering, and drying to obtain pretreated carbon fiber;
s12, adding 3 parts by weight of pretreated carbon fiber, 0.1 part by weight of silane coupling agent KH570 and 1.2 parts by weight of sodium alginate into 25.7 parts by weight of absolute ethyl alcohol, heating to 150 ℃, preserving heat for 12 hours, cooling to room temperature, performing 500W ultrasonic treatment for 30min, filtering, washing with deionized water for 3 times, and drying to obtain the modified carbon fiber.
The photosensitive resin is trimethylolpropane triacrylate.
The photoinitiator is 1-hydroxycyclohexyl phenyl ketone.
The dispersant is BYK 111.
Example 3
A method of 3D printing of a rock plate, comprising the steps of:
s1, preparing a rock plate slurry, wherein the rock plate slurry is prepared by mixing the following raw materials in parts by weight: 72 parts of rock plate powder, 20 parts of photosensitive resin, 5 parts of silica sol, 5 parts of dispersing agent and 0.8 part of photoinitiator;
s2, pouring the rock plate slurry into a photocuring 3D printer, performing 3D printing forming according to the digital model, and printing layer by layer to obtain a blank body; when the step S2 photo-curing 3D printer prints, the wavelength of light is 370nm, and the exposure time of each layer is 10S;
s3, carrying out photo-treatment and curing on the blank under the irradiation of 370nm ultraviolet light for 8h to obtain a rough blank;
s4, sintering the rough blank at 1400 ℃ for 4h to obtain the rock plate.
The rock plate powder is prepared by mixing the following raw materials in parts by weight: 70 parts of aluminum oxide, 11 parts of titanium dioxide, 8 parts of modified carbon fiber, 7 parts of zirconium dioxide and 4 parts of talcum powder.
The preparation method of the modified carbon fiber comprises the following steps:
s11, adding 4 parts by weight of carbon fiber into a Soxhlet extractor filled with 8 parts by weight of acetone, extracting at 70 ℃ for 8 hours, taking out, soaking for 50min by using 18 parts by weight of deionized water, filtering, and drying to obtain pretreated carbon fiber;
s12, adding 3 parts by weight of pretreated carbon fiber, 0.1 part by weight of silane coupling agent KH570 and 1.2 parts by weight of sodium alginate into 25.7 parts by weight of absolute ethyl alcohol, heating to 150 ℃, preserving heat for 12 hours, cooling to room temperature, performing 500W ultrasonic treatment for 30min, filtering, washing with deionized water for 3 times, and drying to obtain the modified carbon fiber.
The photosensitive resin is trimethylolpropane triacrylate.
The photoinitiator is 1-hydroxycyclohexyl phenyl ketone.
The dispersant is BYK 111.
Example 4
A method of 3D printing of a rock plate, comprising the steps of:
s1, preparing a rock plate slurry, wherein the rock plate slurry is prepared by mixing the following raw materials in parts by weight: 74.5 parts of rock plate powder, 18 parts of photosensitive resin, 4 parts of silica sol, 3 parts of dispersing agent and 0.5 part of photoinitiator;
s2, pouring the rock plate slurry into a photocuring 3D printer, performing 3D printing forming according to the digital model, and printing layer by layer to obtain a blank body; when the step S2 photo-curing 3D printer prints, the wavelength of light is 370nm, and the exposure time of each layer is 10S;
s3, carrying out photo-treatment and curing on the blank under the irradiation of 370nm ultraviolet light for 8h to obtain a rough blank;
s4, sintering the rough blank at 1400 ℃ for 4h to obtain the rock plate.
The rock plate powder is alumina.
The photosensitive resin is trimethylolpropane triacrylate.
The photoinitiator is 1-hydroxycyclohexyl phenyl ketone.
The dispersant is BYK 111.
Example 5
A method of 3D printing of a rock plate, comprising the steps of:
s1, preparing a rock plate slurry, wherein the rock plate slurry is prepared by mixing the following raw materials in parts by weight: 74.5 parts of rock plate powder, 18 parts of photosensitive resin, 4 parts of silica sol, 3 parts of dispersing agent and 0.5 part of photoinitiator;
s2, pouring the rock plate slurry into a photocuring 3D printer, performing 3D printing forming according to the digital model, and printing layer by layer to obtain a blank body; when the step S2 photo-curing 3D printer prints, the wavelength of light is 370nm, and the exposure time of each layer is 10S;
s3, carrying out photo-treatment and curing on the blank under the irradiation of 370nm ultraviolet light for 8h to obtain a rough blank;
s4, sintering the rough blank at 1400 ℃ for 4h to obtain the rock plate.
The rock plate powder is prepared by mixing the following raw materials in parts by weight: 70 parts of aluminum oxide, 11 parts of titanium dioxide, 8 parts of carbon fiber, 7 parts of zirconium dioxide and 4 parts of talcum powder.
The photosensitive resin is trimethylolpropane triacrylate.
The photoinitiator is 1-hydroxycyclohexyl phenyl ketone.
The dispersant is BYK 111.
Comparative example 1
Comparative example 1 differs from example 1 in that comparative example 1 does not contain the modified carbon fiber, and the other is the same.
Comparative example 2
Comparative example 2 is different from example 1 in that the modified carbon fiber described in comparative example 2 is prepared by the same method as example 1.
The preparation method of the modified carbon fiber comprises the following steps:
s11, adding 4 parts by weight of carbon fiber into a Soxhlet extractor filled with 8 parts by weight of acetone, extracting at 70 ℃ for 8 hours, taking out, soaking for 50min by using 18 parts by weight of deionized water, filtering, and drying to obtain pretreated carbon fiber;
s12, adding 3 parts by weight of pretreated carbon fiber, 0.1 part by weight of silane coupling agent KH570 and 1.2 parts by weight of silicon dioxide into 25.7 parts by weight of absolute ethyl alcohol, heating to 150 ℃, preserving heat for 12 hours, cooling to room temperature, performing 500W ultrasonic treatment for 30min, filtering, washing with deionized water for 3 times, and drying to obtain the modified carbon fiber.
To further demonstrate the effect of the present invention, the following test methods were provided:
1. the compressive strength was tested using a CSS-88000 electronic universal tester, and the test results are shown in Table 1.
TABLE 1 test results
As can be seen from table 1, the rock plate printed by the 3D printing method of the rock plate according to the present invention has good compressive strength.
As can be seen from the comparison of examples 1-3, the compressive strength can be affected by the proportion of different ceramic slurries.
It is understood from the comparison between example 1 and example 4 that the ceramic powder of the present invention can significantly improve the compressive strength compared to the case of using a single alumina.
Compared with example 5, comparative example 1 and comparative example 2, it can be seen that the compressive strength of the modified carbon fiber prepared by the invention can be significantly improved, and if sodium alginate in the preparation method of the modified carbon fiber is replaced, the compressive strength can be significantly reduced.
In light of the foregoing description of preferred embodiments according to the invention, it is clear that many changes and modifications can be made by the person skilled in the art without departing from the scope of the invention. The technical scope of the present invention is not limited to the contents of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. A3D printing method of a rock plate is characterized by comprising the following steps:
s1, preparing a rock plate slurry, wherein the rock plate slurry is prepared by mixing the following raw materials in parts by weight: 70-80 parts of rock plate powder, 12-20 parts of photosensitive resin, 2-5 parts of silica sol, 2-5 parts of dispersing agent and 0.2-0.8 part of photoinitiator;
s2, pouring the rock plate slurry into a photocuring 3D printer, performing 3D printing forming according to the digital model, and printing layer by layer to obtain a blank body;
s3, carrying out photo-treatment and curing on the blank under the irradiation of ultraviolet light of 360-400 nm for 4-10 h to obtain a rough blank;
and S4, sintering the rough blank to obtain the rock plate.
2. A method of 3D printing of a rock plate as claimed in claim 1, wherein the rock plate slurry is mixed from the following raw materials in parts by weight: 72-80 parts of rock plate powder, 15-20 parts of photosensitive resin, 3-5 parts of silica sol, 2-4 parts of dispersing agent and 0.3-0.8 part of photoinitiator.
3. A method of 3D printing of a rock plate as claimed in claim 1, wherein the rock plate slurry is mixed from the following raw materials in parts by weight: 74.5 parts of rock plate powder, 18 parts of photosensitive resin, 4 parts of silica sol, 3 parts of dispersing agent and 0.5 part of photoinitiator.
4. The method for 3D printing of a rock plate of claim 1, wherein the rock plate powder is mixed from the following raw materials in parts by weight: 65-72 parts of aluminum oxide, 10-15 parts of titanium dioxide, 6-9 parts of modified carbon fiber, 6-9 parts of zirconium dioxide and 1-5 parts of talcum powder.
5. The method for 3D printing of a rock plate of claim 1, wherein the rock plate powder is mixed from the following raw materials in parts by weight: 70 parts of aluminum oxide, 11 parts of titanium dioxide, 8 parts of modified carbon fiber, 7 parts of zirconium dioxide and 4 parts of talcum powder.
6. The method for 3D printing of a rock plate according to claim 4, wherein the modified carbon fiber is prepared by:
s11, adding 2-5 parts by weight of carbon fibers into a Soxhlet extractor filled with 6-10 parts by weight of acetone, extracting at 50-80 ℃ for 5-10 hours, taking out, soaking for 40-80 min by using 10-20 parts by weight of deionized water, filtering, and drying to obtain pretreated carbon fibers;
s12, adding 2-5 parts by weight of pretreated carbon fiber, 0.05-0.15 part by weight of silane coupling agent KH570 and 0.8-2 parts by weight of sodium alginate into 20-30 parts by weight of absolute ethyl alcohol, heating to 120-160 ℃, preserving heat for 10-20 hours, cooling to room temperature, carrying out ultrasonic treatment at 400-800W for 15-40 min, filtering, washing with deionized water for 2-4 times, and drying to obtain the modified carbon fiber.
7. A method of 3D printing of a rock plate according to claim 1, characterised in that the photosensitive resin is one or more of hydroxyethyl methacrylate, trimethylolpropane triacrylate, 1, 6-hexanediol diacrylate.
8. The method of 3D printing of a rock plate according to claim 1, wherein the photoinitiator is one or more of 1-hydroxycyclohexyl phenyl ketone, bis 2, 6-difluoro-3-pyrrol ophenyl titanocene, alpha-hydroxyisobutyrophenone; the dispersing agent is one or more of tetramethylammonium hydroxide, EFKA4046 and BYK 111.
9. The method for 3D printing of a rock plate according to claim 1, wherein the step S2 is performed by using a photo-curing 3D printer with a light wavelength of 360-400 nm, and the exposure time of each layer is 7-12S.
10. The method for 3D printing of a rock plate according to claim 1, wherein the sintering temperature is 1200 to 1500 ℃ and the sintering time is 2 to 6 hours.
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| CN116041977A (en) * | 2023-02-14 | 2023-05-02 | 中国林业科学研究院木材工业研究所 | Preparation of wood-based sizing agent and ultraviolet curing forming method |
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