CN109177169A - A method of improving 3D printing macromolecule device mechanical performance - Google Patents
A method of improving 3D printing macromolecule device mechanical performance Download PDFInfo
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- CN109177169A CN109177169A CN201811165764.0A CN201811165764A CN109177169A CN 109177169 A CN109177169 A CN 109177169A CN 201811165764 A CN201811165764 A CN 201811165764A CN 109177169 A CN109177169 A CN 109177169A
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- Prior art keywords
- printing
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/295—Heating elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
- B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
-
- 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
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- 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
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
Abstract
一种提高3D打印高分子器件机械性能的方法，其特征是将因3D打印机理所导致的层间结合力弱的高分子器件进行微波加热，以便在短时间内提高高分子链的运动活性，有效的促进打印器件内部层与层之间高分子链的渗透、融合，提高他们之间的作用力，减轻随打印方向不同产生的机械性能下降程度，拓展打印器件的功能和应用范围，更好的满足个性化的需求。本发明得到的经过处理后的3D打印高分子器件的层间作用力得到很好的改善，接近高分子材料本体的强度，使得3D打印高分子器件的实用性得到很大的提高，有助于促进3D打印的应用推广。
A method for improving the mechanical properties of 3D printing polymer devices, which is characterized by microwave heating the polymer devices with weak interlayer bonding force caused by the 3D printing mechanism, so as to improve the motion activity of polymer chains in a short time, It can effectively promote the penetration and fusion of the polymer chains between the inner layers of the printing device, improve the force between them, reduce the degree of mechanical performance decline caused by different printing directions, and expand the function and application range of the printing device. to meet individual needs. The interlayer force of the treated 3D printed polymer device obtained by the invention is well improved, which is close to the strength of the polymer material body, so that the practicability of the 3D printed polymer device is greatly improved, which is helpful for Promote the application and promotion of 3D printing.
Description
Technical field
The present invention relates to a kind of 3D printing technique, especially a kind of raising 3D printing device mechanical performance (tensile capacity)
Method, specifically a kind of method for improving 3D printing macromolecule device mechanical performance.
Background technique
3D printing is a kind of molding manufacture of stacking accumulation, has and quickly manufactures complex geometric shapes building blocks of function
Advantage.There are many advantages outstanding compared with traditional material technology for 3D printing technique.Using plastics as the high molecular polymer of representative
With under relatively lower temp thermoplasticity, good thermal fluidity and be quickly cooled down cementability or certain condition (such as
Light) initiation under quick-setting ability, therefore quickly applied and developed in 3D printing field.Meanwhile macromolecule material
The bonding characteristic of material allow its can with to be relatively difficult to the formation such as molding ceramics, glass, fiber, inorganic powder, metal powder complete
New composite material, to greatly expand the application range of 3D printing.Therefore, high molecular material becomes current 3D printing field base
Printed material this and that development is the most mature.
It is existing research it has been shown that this molding mode of 3D printing while bringing great convenience there is also it is some from
Some defects of body, one of them be exactly interface cohesion property between layers and traditional material body have it is apparent poor
Not, the mechanical performance decline in certain directions is serious, usually the 50% of insufficient raw material, has severely impacted the performance of device and has answered
With so that print device is many times only to work as model display.
When temperature is higher than high polymer material glass temperature, the locomotor activity of macromolecular chain is dramatically increased, and is conducive to height
Winding, infiltration of strand etc..When being post-processed using common heat treatment mode, need be higher than glass transition temperature
The heat preservation that the long period is carried out in temperature, just can guarantee that the mechanical property of device inside material can be also improved.But when long
Between soak be not only easy device is allowed to be deformed, surface oxidation, but also energy consumption is also high.The solution party that this there is no
Method.
Summary of the invention
It is not high the purpose of the present invention is being directed to existing 3D printing macromolecule device mechanical performance, especially work as Print direction
When vertical with the stretch-proof direction of device, performance is very low, is not available, and conventional high-temperature heating easily makes device generate change
Shape, surface oxidation, and energy consumption also high problem, invent a kind of raising 3D printing macromolecule device controllably heated based on microwave
The method of mechanical performance.
The technical scheme is that
A method of 3D printing macromolecule device mechanical performance being improved, it is characterized in that by because of the interlayer caused by 3D printing mechanism
The weak macromolecule device of binding force carries out microwave heating, to improve the locomotor activity of macromolecular chain in a short time, effectively
Infiltration, the fusion for promoting macromolecular chain between layers inside print device, improve the active force between them, mitigate with printing
The mechanical performance that direction difference generates declines degree, expands the function and application range of print device, better meets personalization
Demand.
The microwave heating power is 100-400W, and heating time is 1-10 minutes.
The microwave heating power is 300W, and heating time is 6 minutes.
The beneficial effects of the present invention are:
The interlaminar action power for the 3D printing macromolecule device after treatment that the present invention obtains is improved well, close to height
The intensity of molecular material ontology peomotes 3D and beats so that the practicability of 3D printing macromolecule device is greatly improved
The application of print.
The invention is simple and feasible, has a extensive future.
Detailed description of the invention
Fig. 1 is test bars machining sketch chart of the invention (in figure: I is the direction of motion of 3D printing discharging gate).
Fig. 2 is that test bars of the invention constitute schematic diagram.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
A method of 3D printing macromolecule device mechanical performance being improved, it includes following operating procedure:
It (1) is process object with the molding macromolecule device of 3D printing；
(2) the macromolecule device of 3D printing is put into microwave treater, function can be carried out according to the material of device, thickness, size
The setting of rate；
(3) to device carry out microwave treatment, the time about 1-10 minutes.
(4) power supply is closed, takes out device after cooling.
The working principle of the invention is:
The present invention is that elastomeric state is presented when being based on high molecular material more than glass transition temperature, and unformed polymer segment can be realized
Free movement facilitates the diffusion and infiltration of polymer segment.The mode for directlying adopt microwave integrally heats material, promotees
Into the diffusion and infiltration of this segment, the interaction of the macromolecular chain between 3D printing macromolecule layer can be promoted, improve layer
Between active force.After the inter-layer bonding force enhancing of 3D printing macromolecule device, the mechanical performance of entire device, which has, significantly to be changed
It is kind.
Function and effect of the invention are further described below by example.
With acrylonitrile-butadiene-styrene copolymer (abbreviation ABS resin) for printing substrate material, for the ease of surveying
Examination, print device are standard testing batten.
Example 1: the ABS resin test bars of the 3D printing in the form of FEM, microwave treater power 100W, post-processing when
Between 1 minute, taken out after cooling.
Example 2: the ABS resin test bars of the 3D printing in the form of FEM, microwave treater power 100W, post-processing when
Between 10 minutes, taken out after cooling.
Example 3: the ABS resin test bars of the 3D printing in the form of FEM, microwave treater power 400W, post-processing when
Between 1 minute, taken out after cooling.
Example 4: the ABS resin test bars of the 3D printing in the form of FEM, microwave treater power 400W, post-processing are held
It the continuous 10 minutes time, is taken out after cooling.
Example 5: the ABS resin test bars of the 3D printing in the form of FEM, microwave treater power 300W, post-processing when
Between 6 minutes, taken out after cooling.
Example 6: the ABS resin test bars of the 3D printing in the form of FEM.
The batten of the microwave treatment of example 1-5 and the non-microwave treatment of example 6 is subjected to tensile strength test, each example
Batten actual measurement parameter is shown in Table 1.
The tensile strength of 1 embodiment test specimens of table
| Embodiment | The tensile strength (MPa) of batten 1 | The tensile strength (MPa) of batten 2 |
| 1 | 39 | 18 |
| 2 | 40 | 25 |
| 3 | 40 | 20 |
| 4 | 42 | 31 |
| 5 | 41 | 29 |
| 6 | 39 | 17 |
Note: there is slight deformation after the batten microwave treatment of example 4.
As can be seen from the above table, post-microwave influences very little to the drafting results of batten 1, this is because test stretching side
To with printing the direction of motion of mouth it is consistent.And the draw direction of batten 2 is vertical with the printing direction of motion of mouth, due to layer and layer it
Between active force far below the active force inside material body, so the mechanical properties decrease of the macroscopic view of performance is obvious, comparison is real
Known to the test result for applying the batten 1 and 2 of example 6.As can be seen from the table, when power is 300 watts, microwave heating time is 6 points
Tensile strength improves 70% or more when clock, and the tensile strength of another so example 4 improves 82%, but since acid extraction is too long,
There is deformation in batten, is not optimal selection.It takes a broad view of example one to six and tensile property improves degree, it can be seen that when heating
Between and power should comprehensively consider, if microwave power is small, heating time should adapt to extend, and the time is short, power is small, and tensile strength increases
Add effect unobvious (example 1), the longest heating time of power hour can extend to 10 minutes (example 2), then more than 10 minutes
Efficiency is unobvious, and easily device surface aging and deformation.If heating power is big, heating time should be controlled within 10 minutes,
It but is not more shorter better, but otherwise longest will be deformed (example 4) also no more than 10 minutes, wherein being with example 5
Most preferably.
Test data through the foregoing embodiment is it is found that the mode of post-microwave can effectively promote in print device
The fusion of portion between layers improves the active force between them, mitigates and declines with the mechanical performance that Print direction difference generates
Degree.
The technical means disclosed in the embodiments of the present invention is not limited to the technical means disclosed in the above technical means, and further includes
Technical solution consisting of any combination of the above technical features.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Part that the present invention does not relate to is the same as those in the prior art or can be realized by using the prior art.
Claims (3)
1. a kind of method for improving 3D printing macromolecule device mechanical performance, it is characterized in that by because of the layer caused by 3D printing mechanism
Between the weak macromolecule device of binding force carry out microwave heating, to improve the locomotor activity of macromolecular chain in a short time, effectively
The infiltration for promoting macromolecular chain between layers inside print device, fusion, improve the active force between them, mitigate with beating
India side declines degree to the mechanical performance of different generations, expands the function and application range of print device, better meets individual character
The demand of change.
2. according to the method described in claim 1, heating time is it is characterized in that the microwave heating power is 100-400W
1-10 minutes.
3. according to the method described in claim 2, heating time is 6 points it is characterized in that the microwave heating power is 300W
Clock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811165764.0A CN109177169A (en) | 2018-10-08 | 2018-10-08 | A method of improving 3D printing macromolecule device mechanical performance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811165764.0A CN109177169A (en) | 2018-10-08 | 2018-10-08 | A method of improving 3D printing macromolecule device mechanical performance |
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| Publication Number | Publication Date |
|---|---|
| CN109177169A true CN109177169A (en) | 2019-01-11 |
Family
ID=64947173
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811165764.0A Pending CN109177169A (en) | 2018-10-08 | 2018-10-08 | A method of improving 3D printing macromolecule device mechanical performance |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110253878A (en) * | 2019-05-10 | 2019-09-20 | 东北林业大学 | A kind of selective laser sintering product and its preparation method and application |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101722701A (en) * | 2009-11-06 | 2010-06-09 | 四川大学 | Novel macromolecular material with orientation structure and preparation method thereof |
| CN103707388A (en) * | 2013-12-23 | 2014-04-09 | 宁波市鄞州润物工业设计有限公司 | Three-dimensional printing method |
| CN105584048A (en) * | 2016-01-25 | 2016-05-18 | 顺德职业技术学院 | Method for improving strength of plastic quick-formed parts and equipment for producing special wires |
| CN106042374A (en) * | 2015-12-27 | 2016-10-26 | 南京新月材料科技有限公司 | Method for solving problem of fused deposition 3D printing strength |
-
2018
- 2018-10-08 CN CN201811165764.0A patent/CN109177169A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101722701A (en) * | 2009-11-06 | 2010-06-09 | 四川大学 | Novel macromolecular material with orientation structure and preparation method thereof |
| CN103707388A (en) * | 2013-12-23 | 2014-04-09 | 宁波市鄞州润物工业设计有限公司 | Three-dimensional printing method |
| CN106042374A (en) * | 2015-12-27 | 2016-10-26 | 南京新月材料科技有限公司 | Method for solving problem of fused deposition 3D printing strength |
| CN105584048A (en) * | 2016-01-25 | 2016-05-18 | 顺德职业技术学院 | Method for improving strength of plastic quick-formed parts and equipment for producing special wires |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110253878A (en) * | 2019-05-10 | 2019-09-20 | 东北林业大学 | A kind of selective laser sintering product and its preparation method and application |
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Application publication date: 20190111 |
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