CN110894150A - Micro-expansion 3D printing ink and preparation method thereof - Google Patents
Micro-expansion 3D printing ink and preparation method thereof Download PDFInfo
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- CN110894150A CN110894150A CN201811065886.2A CN201811065886A CN110894150A CN 110894150 A CN110894150 A CN 110894150A CN 201811065886 A CN201811065886 A CN 201811065886A CN 110894150 A CN110894150 A CN 110894150A
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- micro
- printing ink
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- expansion
- quartz sand
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Classifications
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
Abstract
The invention discloses micro-expansion 3D printing ink and a preparation method thereof. The micro-expansion 3D printing ink comprises the following raw materials in parts by weight: 95-110 parts of a cementing material, 0.71-1 part of a non-retarding non-air-entraining type high-efficiency water reducing agent and 200 parts of quartz sand; the cementing material comprises the following raw materials in parts by weight: 85-90 parts of Portland cement and 10-20 parts of non-air-entraining type expanding agent. The micro-expansion 3D printing ink disclosed by the invention has the characteristics of micro-expansion, high compactness, high impermeability, high adhesion and the like, is low in cost, wide in application and simple and convenient to construct, and the performance of the micro-expansion 3D printing ink can be adjusted according to the needs of users.
Description
Technical Field
The invention relates to 3D printing ink, in particular to micro-expansion 3D printing ink and a preparation method thereof.
Background
The 3D printing technology is in the middle of the 90 s of the 20 th century, and is actually a technology for realizing rapid prototyping by means of photocuring, paper lamination and the like. The printer is basically the same as a common printer in working principle, powdery metal or plastic and other bondable materials are filled in the printer, and after the printer is connected with a computer, a blueprint on the computer is finally changed into a real object through a layer-by-layer multilayer printing mode.
The 3D printing building is built by a 3D printing technology and is composed of a huge three-dimensional extrusion machine, and a gear transmission device is used on an extrusion head to create a foundation and a wall for a house, so that the building is directly manufactured. The 3D printing building ink is a material for preparing 3D printing buildings. The existing 3D printing building ink generally adopts pouring cement, and the addition amount of an organic additive is high, so that the economical efficiency is poor.
Disclosure of Invention
The invention aims to provide micro-expansion 3D printing ink and a preparation method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the micro-expansion 3D printing ink comprises the following raw materials in parts by weight: 95-110 parts of a cementing material, 0.71-1 part of a non-retarding non-air-entraining type high-efficiency water reducing agent and 200 parts of quartz sand; the cementing material comprises the following raw materials in parts by weight: 85-90 parts of Portland cement and 10-20 parts of non-air-entraining type expanding agent.
As a further scheme of the invention: the fineness modulus of the quartz sand is 2.7-10.
As a further scheme of the invention: the particle size distribution of the quartz sand is as follows:
the content of quartz sand with the grain diameter of 2.500-5.000mm is 1-5% (weight ratio);
the content of quartz sand with the grain diameter of 0.315-1.250mm is 55-65% (weight ratio);
the content of quartz sand with the grain diameter less than 0.315mm is 10-15% (weight ratio);
the balance is quartz sand with the grain diameter of 1.250-2.500 mm.
As a further scheme of the invention: the non-air-entraining type expanding agent is sulphoaluminate, lime or iron powder expanding agent.
As a further scheme of the invention: the dosage of the non-air-entraining type expanding agent is 10-18% of the total weight of the cementing material.
As a further scheme of the invention: the non-retarding non-air-entraining type high-efficiency water reducing agent adopts a naphthalene sulfonate water reducing agent or a water-soluble melamine resin water reducing agent.
As a further scheme of the invention: the dosage of the non-retarding non-air-entraining type high-efficiency water reducing agent is 0.75-1.0% of the weight of the cementing material.
As a further scheme of the invention: the micro-expansion 3D printing ink also comprises an early strength agent or a retarder.
A preparation method of micro-expansion 3D printing ink comprises the following steps: weighing the raw materials according to the formula, uniformly mixing, adding water accounting for 40-50% of the weight of the cementing material, and uniformly mixing to obtain the cement.
Compared with the prior art, the invention has the beneficial effects that:
1. the common Portland cement is used as a main cementing material, and has the advantages of wide source and low cost;
2. the water reducing agent has higher fluidity, only needs to be added with a proper amount of the non-retarding non-air-entraining type high-efficiency water reducing agent, reduces the dosage of the organic additive, and can be added with water and stirred uniformly on a construction site when in use, thereby having the advantages of low cost, simple and convenient operation, convenient transportation and storage and the like;
3. the non-air-entraining type expanding agent is added to achieve the effects of compensating shrinkage and micro-expansion, so that the hardened material has the characteristics of high compactness, high impermeability and high bonding force, and is good in stability and water retention property, and does not become slurry within 2 hours;
4. the compressive strength of the invention can be adjusted by selecting cement with different grades, and the initial setting time and the final setting time are suitable for the construction process and can be adjusted;
5. the micro-expansion 3D printing ink with early strength or delayed coagulation performance can also be prepared by doping an early strength agent or a delayed coagulation agent.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Example 1
The micro-expansion 3D printing ink comprises the following raw materials in parts by weight: 100 parts of a cementing material, 1 part of a non-retarding non-air-entraining type high-efficiency water reducing agent and 180 parts of quartz sand; the cementing material comprises the following raw materials in parts by weight: 90 parts of Portland cement and 10 parts of non-air-entraining type expanding agent.
The Portland cement adopts ordinary Portland cement meeting the GB175-85 requirements to replace high-cost casting cement. The requirements for different compressive strengths can be adjusted by selecting different grades of cement.
The method is characterized in that quartz sand meeting the requirements of JGJ152-79 'quality standard and test method of sand for common concrete' is adopted, and the fineness modulus of the quartz sand is 2.7-10.
The particle size distribution of the quartz sand is as follows:
1% by weight of quartz sand having a particle size of 2.500 to 5.000 mm;
the content of quartz sand with the grain diameter of 0.315-1.250mm is 65% (weight ratio);
the content of quartz sand with the grain diameter less than 0.315mm is 10 percent (weight ratio);
the balance is quartz sand with the grain diameter of 1.250-2.500 mm.
The non-air-entraining type expanding agent is a sulphoaluminate expanding agent; the dosage of the non-air-entraining expanding agent is 10 percent of the total weight of the cementing material.
The non-retarding non-air-entraining type high-efficiency water reducing agent adopts a naphthalene sulfonate water reducing agent; the dosage of the non-retarding non-air-entraining type high-efficiency water reducing agent is 1.0 percent of the weight of the cementing material.
A preparation method of micro-expansion 3D printing ink comprises the following steps: weighing the raw materials according to the formula, uniformly mixing, adding water accounting for 40% of the weight of the cementing material, and uniformly mixing to obtain the cement.
Example 2
The micro-expansion 3D printing ink comprises the following raw materials in parts by weight: 110 parts of a cementing material, 0.825 part of a non-retarding non-air-entraining type high-efficiency water reducing agent and 200 parts of quartz sand; the cementing material comprises the following raw materials in parts by weight: 90 parts of Portland cement and 20 parts of non-air-entraining type expanding agent.
The Portland cement adopts ordinary Portland cement meeting the GB175-85 requirements to replace high-cost casting cement. The requirements for different compressive strengths can be adjusted by selecting different grades of cement.
The method is characterized in that quartz sand meeting the requirements of JGJ152-79 'quality standard and test method of sand for common concrete' is adopted, and the fineness modulus of the quartz sand is 2.7-10.
The particle size distribution of the quartz sand is as follows:
the content of quartz sand with the grain diameter of 2.500-5.000mm is 5% (weight ratio);
the content of quartz sand with the grain diameter of 0.315-1.250mm is 55% (weight ratio);
the content of quartz sand with the grain diameter less than 0.315mm is 15 percent (weight ratio);
the balance is quartz sand with the grain diameter of 1.250-2.500 mm.
The non-air-entraining type expanding agent is a lime expanding agent; the dosage of the non-air-entraining expanding agent is 18 percent of the total weight of the cementing material.
The non-retarding non-air-entraining type high-efficiency water reducing agent adopts a water-soluble melamine resin water reducing agent; the dosage of the non-retarding non-air-entraining type high-efficiency water reducing agent is 0.75 percent of the weight of the cementing material.
A preparation method of micro-expansion 3D printing ink comprises the following steps: weighing the raw materials according to the formula, uniformly mixing, adding water accounting for 50% of the weight of the cementing material, and uniformly mixing to obtain the cement.
Example 3
The micro-expansion 3D printing ink comprises the following raw materials in parts by weight: 95 parts of a cementing material, 0.71 part of a non-retarding non-air-entraining type high-efficiency water reducing agent and 190 parts of quartz sand; the cementing material comprises the following raw materials in parts by weight: 85 parts of Portland cement and 10 parts of non-air-entraining type expanding agent.
The Portland cement adopts ordinary Portland cement meeting the GB175-85 requirements to replace high-cost casting cement. The requirements for different compressive strengths can be adjusted by selecting different grades of cement.
The method is characterized in that quartz sand meeting the requirements of JGJ152-79 'quality standard and test method of sand for common concrete' is adopted, and the fineness modulus of the quartz sand is 2.7-10.
The particle size distribution of the quartz sand is as follows:
the content of quartz sand with the grain diameter of 2.500-5.000mm is 2% (weight ratio);
the content of quartz sand with the grain diameter of 0.315-1.250mm is 60% (weight ratio);
the content of quartz sand with the grain diameter less than 0.315mm is 12 percent (weight ratio);
the balance is quartz sand with the grain diameter of 1.250-2.500 mm.
The non-air-entraining type expanding agent is an iron powder expanding agent; the dosage of the non-air-entraining expanding agent is 10.5 percent of the total weight of the cementing material.
The non-retarding non-air-entraining type high-efficiency water reducing agent adopts a naphthalene sulfonate water reducing agent; the dosage of the non-retarding non-air-entraining type high-efficiency water reducing agent is 0.75 percent of the weight of the cementing material.
The micro-expansion 3D printing ink also comprises an early strength agent or a retarder.
A preparation method of micro-expansion 3D printing ink comprises the following steps: weighing the raw materials according to the formula, uniformly mixing, adding water accounting for 45% of the weight of the cementing material, and uniformly mixing to obtain the cement.
Example 4
Unlike example 1, the micro-swelling 3D printing ink further includes 5 parts of an early strength agent.
Example 5
Unlike example 1, the micro-expansive 3D printing ink further includes 5 parts of a retarder.
Comparative example
A commercially available 3D printing ink was used as a comparative example.
Examples of the experiments
The 3D printing inks of examples 1-3 and comparative example were subjected to performance tests and the results are shown in table 1.
TABLE 1
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (9)
1. The micro-expansion 3D printing ink is characterized by comprising the following raw materials in parts by weight: 95-110 parts of a cementing material, 0.71-1 part of a non-retarding non-air-entraining type high-efficiency water reducing agent and 200 parts of quartz sand; the cementing material comprises the following raw materials in parts by weight: 85-90 parts of Portland cement and 10-20 parts of non-air-entraining type expanding agent.
2. The micro-expansive 3D printing ink according to claim 1, wherein the fineness modulus of the quartz sand is 2.7-10.
3. The micro-expansive 3D printing ink according to claim 1, wherein the particle size distribution of the quartz sand is as follows:
the content of quartz sand with the grain diameter of 2.500-5.000mm is 1-5 percent;
the content of quartz sand with the grain diameter of 0.315-1.250mm is 55-65%;
the content of quartz sand with the grain diameter of less than 0.315mm is 10-15 percent;
the balance is quartz sand with the grain diameter of 1.250-2.500 mm.
4. The micro-intumescent 3D printing ink as claimed in claim 1, characterized in that said non air-entraining type of expansion agent is a sulphoaluminate, lime or iron powder type of expansion agent.
5. The micro-intumescent 3D printing ink according to claim 4, wherein said non air-entraining intumescent agent is present in an amount of 10-18% by weight of the total weight of the gelled material.
6. The micro-expansion 3D printing ink according to claim 1, wherein the non-retarding non-air-entraining high efficiency water reducing agent is a naphthalene sulfonate water reducing agent or a water-soluble melamine resin water reducing agent.
7. The micro-expansion 3D printing ink as claimed in claim 6, wherein the non-retarding non-air-entraining high efficiency water reducing agent is used in an amount of 0.75-1.0% by weight of the binding material.
8. The micro-expansive 3D printing ink according to claim 1, wherein the micro-expansive 3D printing ink further comprises an early strength agent or a retarder.
9. A method for preparing a micro-expanded 3D printing ink according to any of claims 1 to 8, comprising the steps of: weighing the raw materials according to the formula, uniformly mixing, adding water accounting for 40-50% of the weight of the cementing material, and uniformly mixing to obtain the cement.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811065886.2A CN110894150A (en) | 2018-09-13 | 2018-09-13 | Micro-expansion 3D printing ink and preparation method thereof |
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| CN201811065886.2A CN110894150A (en) | 2018-09-13 | 2018-09-13 | Micro-expansion 3D printing ink and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110894149A (en) * | 2018-09-13 | 2020-03-20 | 张艳萍 | Super-early-strength 3D printing building ink and construction method thereof |
| CN110894151A (en) * | 2018-09-13 | 2020-03-20 | 张艳萍 | 3D printing building ink capable of being constructed in winter and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1084837A (en) * | 1992-09-29 | 1994-04-06 | 同济大学 | High flowability, micro expanding cement grout material |
| CN104310918A (en) * | 2014-10-20 | 2015-01-28 | 中国建筑股份有限公司 | Cement-based composite material used for 3D printing technology as well as preparation method and application thereof |
| CN104891891A (en) * | 2015-05-06 | 2015-09-09 | 同济大学 | 3D printing cement-based material and preparation method thereof |
-
2018
- 2018-09-13 CN CN201811065886.2A patent/CN110894150A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1084837A (en) * | 1992-09-29 | 1994-04-06 | 同济大学 | High flowability, micro expanding cement grout material |
| CN104310918A (en) * | 2014-10-20 | 2015-01-28 | 中国建筑股份有限公司 | Cement-based composite material used for 3D printing technology as well as preparation method and application thereof |
| CN104891891A (en) * | 2015-05-06 | 2015-09-09 | 同济大学 | 3D printing cement-based material and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110894149A (en) * | 2018-09-13 | 2020-03-20 | 张艳萍 | Super-early-strength 3D printing building ink and construction method thereof |
| CN110894151A (en) * | 2018-09-13 | 2020-03-20 | 张艳萍 | 3D printing building ink capable of being constructed in winter and preparation method thereof |
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