CN106915943A - A kind of three-dimensional automatic mortar injection forming gypsum based composite and preparation method thereof - Google Patents
A kind of three-dimensional automatic mortar injection forming gypsum based composite and preparation method thereof Download PDFInfo
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- CN106915943A CN106915943A CN201710172662.0A CN201710172662A CN106915943A CN 106915943 A CN106915943 A CN 106915943A CN 201710172662 A CN201710172662 A CN 201710172662A CN 106915943 A CN106915943 A CN 106915943A
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- China
- Prior art keywords
- based composite
- gypsum based
- injection forming
- dimensional automatic
- automatic mortar
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- C04B28/14—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 calcium sulfate 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
-
- 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
Abstract
The invention discloses a kind of gypsum based composite for three-dimensional automatic mortar injection forming and preparation method thereof.1) 0.5~2 part of inorganic nanometer powder and 19~25 parts of deionized waters are taken in beaker, ultrasonic disperse 60min obtains dispersed mixed solution；2) 72~80 parts of high strength gypsum powder are taken and 0.5~1 part of additive component stirring at low speed 5min in agitator for cement mortar is well mixed, the mixed solution that ultrasonic disperse is crossed is added immediately, and high-speed stirred 2min obtains gypsum based composite.The additive component includes 40~60% water reducers, 10~20% retarder and 40~60% water-loss reducers by weight.The gypsum based composite has good shear shinning rheological behaviour and suitable aquation setting time, coordinates three-dimensional automatic mortar injection forming technology to use compression strength, water resistance and the every performance that can significantly improve 3D printing plastering.
Description
Technical field
The present invention relates to a kind of gypsum based composite for three-dimensional automatic mortar injection forming and preparation method thereof, belong to 3D
Printed material field.
Background technology
Gypsum based composite refers to based on semi-hydrated gypsum, and by adding suitable quantity of water and other additive components (such as
Water reducer, retarder, water-loss reducer, fiber, organic polymer etc.) composite for preparing, using the gypsum system that it is prepared
Product have the advantages that light weight, fire resisting, sound insulation, thermal insulation are good, be it is nowadays accepted that the three-dimensional fast shaping of environmental protection (3D beats
Print) material.At present, the 3D printing of gypsum material is printed using powder, and sequentially passes through powdering, printing, gumming and rear place
The steps such as reason, process is relatively complicated.Simultaneously because gypsum powder is bonded together by water base glue, its degree of hydration is low,
Hole between gypsum particle is more, therefore plastering low intensity (≤4MPa), the water resistance prepared using the printing of 3D powder etc.
Every performance is poor, is often only used for the fields such as gypsum doll, model, this severely limits answering for 3D printing plastering
With.
Three-dimensional automatic mortar injection forming is a kind of new 3D printing technique, and the technology take gum size as the former material for printing
Material, and by way of successively stacking injection forming come prepare complexity three-dimensional structure.Three-dimensional automatic mortar injection forming technology and one
As 3D printing technique such as selective laser sintering (SLS), Stereolithography (SLA) compared with heat fusing accumulation molding (FDM),
With material compatibility is wide, printing device simple and low cost and other advantages, and be widely used in labyrinth material, electronic material with
And the preparation of biomaterial.Gum size for three-dimensional automatic mortar injection forming must is fulfilled for two primary conditions：One is to have
There is the rheological behaviour of good shear shinning, the extrusion for making gum size to stablize from nozzle in print procedure, while extrusion
Shape can be kept as solid afterwards and support the weight of itself；Two when being that there is requirement gum size suitable aquation to condense
Between, making in the presence addition vessel that it can stablize before extrusion, energy rapid condensation is hardened and forms intensity again after extrusion.
Therefore, the present invention condenses performance by adjusting the rheological property and aquation of gypsum based composite, and preparation can be used for
The gypsum based composite of three-dimensional automatic mortar injection forming, this is for reducing 3D printing cost, improving making for 3D printing plastering
It is significant with performance.
The content of the invention
Technical problem：In order to overcome the deficiencies in the prior art, the invention provides one kind can be used for three-dimensional automatic grouting into
Gypsum based composite of type and preparation method thereof, the composite has good shear shinning rheological behaviour and suitable water
Change setting time, and the compression strength and every performance of 3D printing plastering can be obviously improved.
Technical scheme：A kind of three-dimensional automatic mortar injection forming gypsum based composite of the present invention is wrapped in parts by weight
Include：
Described inorganic nanometer powder is nano silicon oxide SiO2, nano aluminium oxide Al2O3, nano-titanium oxide TiO2Or receive
Rice calcium carbonate CaCO3One kind.
Described additive includes by weight：
Water reducer 40~60%
Retarder 10%~20%
Water-loss reducer 20~40%.
Water reducer is High-efficiency polycarboxylic acid powder water reducer in described additive.
Retarder is the one kind in citric acid, sodium tripolyphosphate or gelatine powder in described additive.
Water-loss reducer is cellulose ethers water-loss reducer in described additive.
Described cellulose ethers water-loss reducer is specially carboxymethylcellulose calcium, hydroxyethyl cellulose or hydroxypropyl methyl fiber
One kind in element.
The preparation method of three-dimensional automatic mortar injection forming gypsum based composite of the invention is：
1) 0.5~2 part of inorganic nanometer powder and 19~25 parts of deionized waters are taken in beaker, ultrasonic disperse 60min is obtained
Homogeneous mixture solotion；
2) 72~80 parts of high strength gypsum powder and 0.5~1 part of additive component stirring at low speed in agitator for cement mortar are taken
5min is well mixed, and the homogeneous mixture solotion that ultrasonic disperse is crossed is added immediately, and lower stirring 2min obtains gypsum base composite wood at a high speed
Material.
Beneficial effect：Compared with prior art, the present invention has following advantages：
1：The present invention can be used for the gypsum based composite of three-dimensional automatic mortar injection forming for a kind of, compared with prior art,
The 3D printing plastering intensity that is prepared using it is higher, water resistance and every performance are more preferable.
2：Present invention selection inorganic nanometer powder can significantly improve the cohesiveness of gypsum based composite paste structure, from
And the plastic viscosity and yield value of stress of slurry are improved, the ability of own form is kept after enhancing slurry extrusion, while can change
It is apt to every performance such as toughness, water resistance and weatherability of 3D printing plastering.
3：In the additive component of present invention selection, water reducer, retarder and water-loss reducer are used cooperatively, and can adjust gypsum
The volume fraction of dispersed phase in based composites paste structure, makes slurry have the rheological behaviour of good shear shinning, while can
To control the aquation setting time of slurry in OK range.
Specific embodiment
In order to be better understood from the present invention, below the invention will be further described, but it is not intended that the present invention only fit
For Examples below, person skilled in art changes according to some that the content of the invention described above is made to the present invention are nonessential
Enter and adjust, still fall within protection scope of the present invention.
Example 1：A kind of three-dimensional automatic mortar injection forming gypsum based composite, each group distribution ratio is as follows：(by weight)
High strength gypsum powder：72
Nano oxidized Si powder：2
Deionized water：25
Additive component：1
Wherein：Each component is than arranging following (by weight) in additive：
High-efficiency polycarboxylic acid water reducer：0.4
Sodium tripolyphosphate：0.2
Carboxymethylcellulose calcium：0.4
The preparation process of the gypsum based composite is as follows：
Nano oxidized Si powder and deionized water are added in beaker, ultrasonic 60min obtains dispersed mixed solution,
High strength gypsum powder and additive component are sequentially added in agitator for cement mortar, 5min is stirred under low speed and is well mixed, immediately
The mixed solution for adding ultrasonic disperse to cross, the lower stirring 2min of high speed obtains gypsum based composite.
Example 2：A kind of three-dimensional automatic mortar injection forming gypsum based composite, each group distribution ratio is as follows：(by weight)
High strength gypsum powder：76
Nano oxidized Si powder：1.5
Deionized water：22
Additive component：0.5
Each component is than arranging following (by weight) in additive：
High-efficiency polycarboxylic acid water reducer：0.5
Citric acid：0.1
Hydroxyethyl cellulose：0.4
The preparation process of the gypsum based composite is as follows：
Nano oxidized Si powder and deionized water are added in beaker, ultrasonic 60min obtains dispersed mixed solution,
High strength gypsum powder and additive component are sequentially added in agitator for cement mortar, 5min is stirred under low speed and is well mixed, immediately
The mixed solution for adding ultrasonic disperse to cross, the lower stirring 2min of high speed obtains gypsum based composite.
Example 3：A kind of three-dimensional automatic mortar injection forming gypsum based composite, each group distribution ratio is as follows：(by weight)
High strength gypsum powder：78
Nano oxidized Si powder：1
Deionized water：20
Additive component：1
Wherein：
Each component is than arranging following (by weight) in additive：
High-efficiency polycarboxylic acid water reducer：0.4
Gelatine powder：0.2
Hydroxypropyl methyl cellulose：0.4
The preparation process of the gypsum based composite is as follows：
Nano oxidized Si powder and deionized water are added in beaker, ultrasonic 60min obtains dispersed mixed solution,
High strength gypsum powder and additive component are sequentially added in agitator for cement mortar, 5min is stirred under low speed and is well mixed, immediately
The mixed solution for adding ultrasonic disperse to cross, the lower stirring 2min of high speed obtains gypsum based composite.
Example 4：A kind of three-dimensional automatic mortar injection forming gypsum based composite, each group distribution ratio is as follows：(by weight)
High strength gypsum powder：80
Nano oxidized Si powder：0.5
Deionized water：19
Additive component：0.5,
Wherein:But
Each component is than arranging following (by weight) in additive：
High-efficiency polycarboxylic acid water reducer：0.4
Gelatine powder：0.2
Hydroxypropyl methyl cellulose：0.4
The preparation process of the gypsum based composite is as follows：
Nano oxidized Si powder and deionized water are added in beaker, ultrasonic 60min obtains dispersed mixed solution,
High strength gypsum powder and additive component are sequentially added in agitator for cement mortar, 5min is stirred under low speed and is well mixed, immediately
The mixed solution for adding ultrasonic disperse to cross, the lower stirring 2min of high speed obtains gypsum based composite.
Example 5：A kind of three-dimensional automatic mortar injection forming gypsum based composite, each group distribution ratio is as follows：(by weight)
High strength gypsum powder：80
Nano-sized Alumina Powder：0.5
Deionized water：19
Additive component：0.5
Each component is than arranging following (by weight) in additive：
High-efficiency polycarboxylic acid water reducer：0.4
Gelatine powder：0.2
Hydroxypropyl methyl cellulose：0.4
The preparation process of the gypsum based composite is as follows：
Nano-sized Alumina Powder and deionized water are added in beaker, ultrasonic 60min obtains dispersed mixed solution,
High strength gypsum powder and additive component are sequentially added in agitator for cement mortar, 5min is stirred under low speed and is well mixed, immediately
The mixed solution for adding ultrasonic disperse to cross, the lower stirring 2min of high speed obtains gypsum based composite.
Example 6：A kind of three-dimensional automatic mortar injection forming gypsum based composite, each group distribution ratio is as follows：(by weight)
High strength gypsum powder：80
Nano oxidized titanium powder：0.5
Deionized water：19
Additive component：0.5
Each component is than arranging following (by weight) in additive：
High-efficiency polycarboxylic acid water reducer：0.4
Gelatine powder：0.2
Hydroxypropyl methyl cellulose：0.4
The preparation process of the gypsum based composite is as follows：
Nano oxidized titanium powder and deionized water are added in beaker, ultrasonic 60min obtains dispersed mixed solution,
High strength gypsum powder and additive component are sequentially added in agitator for cement mortar, 5min is stirred under low speed and is well mixed, immediately
The mixed solution for adding ultrasonic disperse to cross, the lower stirring 2min of high speed obtains gypsum based composite.
Example 7：A kind of three-dimensional automatic mortar injection forming gypsum based composite, each group distribution ratio is as follows：(by weight)
High strength gypsum powder：80
Nano-calcium carbonate calcium powder：0.5
Deionized water：19
Additive component：0.5
Each component is than arranging following (by weight) in additive：
High-efficiency polycarboxylic acid water reducer：0.4
Gelatine powder：0.2
Hydroxypropyl methyl cellulose：0.4
The preparation process of the gypsum based composite is as follows：
Nano-calcium carbonate calcium powder and deionized water are added in beaker, ultrasonic 60min obtains dispersed mixed solution,
High strength gypsum powder and additive component are sequentially added in agitator for cement mortar, 5min is stirred under low speed and is well mixed, immediately
The mixed solution for adding ultrasonic disperse to cross, the lower stirring 2min of high speed obtains gypsum based composite.
The performance test of gypsum based composite
Rheology testing, reference standard have been carried out to the gypsum based composite for preparing using rotational rheometer
JC/T 2038-2010《Alpha type high-strength gypsum》Respectively the setting time and compression strength to gypsum based composite surveyed
Examination, test result is shown in Table 1.
The three-dimensional automatic mortar injection forming gypsum based composite performance test of table 1
Claims (8)
1. a kind of three-dimensional automatic mortar injection forming gypsum based composite, it is characterised in that the gypsum based composite is with weight
Part meter includes：
2. three-dimensional automatic mortar injection forming gypsum based composite outer according to claim 1, it is characterised in that described
Inorganic nanometer powder is nano silicon oxide SiO2, nano aluminium oxide Al2O3, nano-titanium oxide TiO2Or nano-calcium carbonate CaCO3's
It is a kind of.
3. three-dimensional automatic mortar injection forming gypsum based composite according to claim 1, it is characterised in that described is outer
Plus agent includes by weight：
Water reducer 40~60%
Retarder 10%~20%
Water-loss reducer 20~40%.
4. three-dimensional automatic mortar injection forming gypsum based composite according to claim 3, it is characterised in that described is outer
Plus water reducer is High-efficiency polycarboxylic acid powder water reducer in agent.
5. three-dimensional automatic mortar injection forming gypsum based composite according to claim 3, it is characterised in that described is outer
Plus retarder is the one kind in citric acid, sodium tripolyphosphate or gelatine powder in agent.
6. three-dimensional automatic mortar injection forming gypsum based composite according to claim 3, it is characterised in that described is outer
Plus water-loss reducer is cellulose ethers water-loss reducer in agent.
7. three-dimensional automatic mortar injection forming gypsum based composite according to claim 6, it is characterised in that described fibre
The plain ethers water-loss reducer of dimension is specially the one kind in carboxymethylcellulose calcium, hydroxyethyl cellulose or hydroxypropyl methyl cellulose.
8. a kind of preparation method of three-dimensional automatic mortar injection forming gypsum based composite as claimed in claim 1, its feature
It is that the preparation method is：
1) 0.5~2 part of inorganic nanometer powder and 19~25 parts of deionized waters are taken in beaker, ultrasonic disperse 60min is obtained uniformly
Mixed solution；
2) 72~80 parts of high strength gypsum powder and 0.5~1 part of additive component stirring at low speed 5min in agitator for cement mortar are taken
Homogeneous mixture solotion that is well mixed, adding ultrasonic disperse to cross immediately, the lower stirring 2min of high speed obtains gypsum based composite.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108383465A (en) * | 2018-04-10 | 2018-08-10 | 深圳市明远建筑科技有限公司 | A kind of extruded type 3D printing gypsum based composite cementing material and preparation method thereof |
| CN108424101A (en) * | 2018-05-29 | 2018-08-21 | 武汉理工大学 | A kind of gypsum base thermal-curable 3D printing material and its forming method |
| CN108911540A (en) * | 2018-08-08 | 2018-11-30 | 四川明康善筑建材有限公司 | A kind of preparation method of nano-material modified ardealite base bonding agent |
| CN110436869A (en) * | 2019-07-29 | 2019-11-12 | 武汉理工大学 | A kind of gypsum base 3D printing material and preparation method thereof |
| CN115611601A (en) * | 2022-11-07 | 2023-01-17 | 同济大学 | Gypsum 3D printing powder and preparation method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106243822A (en) * | 2015-11-30 | 2016-12-21 | 青海明阳环保科技有限公司 | A kind of 3D prints drug packaging ink and preparation method thereof |
-
2017
- 2017-03-21 CN CN201710172662.0A patent/CN106915943A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106243822A (en) * | 2015-11-30 | 2016-12-21 | 青海明阳环保科技有限公司 | A kind of 3D prints drug packaging ink and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108383465A (en) * | 2018-04-10 | 2018-08-10 | 深圳市明远建筑科技有限公司 | A kind of extruded type 3D printing gypsum based composite cementing material and preparation method thereof |
| CN108424101A (en) * | 2018-05-29 | 2018-08-21 | 武汉理工大学 | A kind of gypsum base thermal-curable 3D printing material and its forming method |
| CN108911540A (en) * | 2018-08-08 | 2018-11-30 | 四川明康善筑建材有限公司 | A kind of preparation method of nano-material modified ardealite base bonding agent |
| CN110436869A (en) * | 2019-07-29 | 2019-11-12 | 武汉理工大学 | A kind of gypsum base 3D printing material and preparation method thereof |
| CN110436869B (en) * | 2019-07-29 | 2022-04-15 | 武汉理工大学 | Gypsum-based 3D printing material and preparation method thereof |
| CN115611601A (en) * | 2022-11-07 | 2023-01-17 | 同济大学 | Gypsum 3D printing powder and preparation method and application thereof |
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Application publication date: 20170704 |