CN109228302A - A kind of electric drive shape-memory polymer lamella and preparation method thereof based on 3D printing - Google Patents
A kind of electric drive shape-memory polymer lamella and preparation method thereof based on 3D printing Download PDFInfo
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- CN109228302A CN109228302A CN201810955742.8A CN201810955742A CN109228302A CN 109228302 A CN109228302 A CN 109228302A CN 201810955742 A CN201810955742 A CN 201810955742A CN 109228302 A CN109228302 A CN 109228302A
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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
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
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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
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/124—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
- B29C64/129—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
- B29C64/135—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
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- 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
- B33Y10/00—Processes of additive manufacturing
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- 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
- B33Y80/00—Products made by additive manufacturing
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Abstract
A kind of electric drive shape-memory polymer lamella and preparation method thereof based on 3D printing, it is related to 3D printing technique field.The present invention solves existing thermal drivers shape-memory polymer by heating to the heating of its ambient enviroment or the Electric radiant Heating Film by being covered on its surface to it, there is a problem of influencing the heating difficulties such as other devices work, Electric radiant Heating Film is easy to fall off.The present invention includes shape-memory polymer basal layer, heating interconnection line layer, shape-memory polymer coating, the first binding post and the second binding post, uniformly distributed multiple heating basic points on the upper surface of shape-memory polymer basal layer, heating interconnection line layer is fitted in the upper of heating basic point, it heats interconnection line layer and connects and composes reticular structure by multiple heating lamellas and multiple fire-bars, shape-memory polymer covering is placed on the top of heating interconnection line layer, and the both ends of shape-memory polymer coating are respectively equipped with the first binding post and the second binding post.The present invention is used for the preparation of electric drive shape-memory polymer lamella.
Description
Technical field
The present invention relates to 3D printing technique fields, more particularly to a kind of electric drive shape-memory polymer based on 3D printing
Lamella and preparation method thereof.
Background technique
Shape-memory polymer is a kind of novel intelligent material, can different external environments excitation under (as heat, light,
Magnetic etc.), the shape of temporary needs is become by original shape and completes the fixation of shape, when again by identical dynamic excitation
When, and original shape, i.e. shape memory effect can be returned to.
Most widely used at present is thermal drivers shape-memory polymer.Generally by heating up to its ambient enviroment or by covering
It covers the Electric radiant Heating Film on its surface to heat it, reaches glass transition temperature, to complete the reply of shape.In reality
The work of other devices can be seriously affected to its ambient heat in the application on border, and the Electric radiant Heating Film for being covered on its surface can be by
Lead to falling off for Electric radiant Heating Film in deforming the reasons such as excessive, the heating to shape-memory polymer cannot be completed.
In conclusion existing thermal drivers shape-memory polymer is by heating up to its ambient enviroment or by being covered on it
The Electric radiant Heating Film on surface heats it, there is a problem of influencing the heating difficulties such as other devices work, Electric radiant Heating Film is easy to fall off.
Summary of the invention
The purpose of the present invention is to solve existing thermal drivers shape-memory polymers by heating up to its ambient enviroment
Or the Electric radiant Heating Film by being covered on its surface heats it, existing influences that other devices work, Electric radiant Heating Film is easy to fall off etc. adds
Hot difficult problem, and then a kind of electric drive shape-memory polymer lamella and preparation method thereof based on 3D printing is provided.
The technical scheme is that
A kind of electric drive shape-memory polymer lamella based on 3D printing, it include shape-memory polymer basal layer,
Heat interconnection line layer, shape-memory polymer coating, the first binding post and the second binding post, shape-memory polymer basal layer
For laminated structure, uniformly distributed multiple heating basic points, heat basic point and shape memory on the upper surface of shape-memory polymer basal layer
Polymeric substrate layers are an integral structure；Heating interconnection line layer is fitted in the upper surface of heating basic point, heats interconnection line layer by more
A heating lamella and multiple fire-bars connect and compose reticular structure, and heating lamella is an integral structure with fire-bar, multiple heating
Lamella is consistent with multiple heating shapes of basic point and is arranged in a one-to-one correspondence；Shape-memory polymer covering is placed on heating interconnection line
The top of layer, the both ends of shape-memory polymer coating open up one respectively and set string holes, the first binding post and the second binding post
It is separately mounted to setting in string holes and connecting with heating interconnection line layer for shape-memory polymer coating both ends.
A method of the electric drive shape-memory polymer lamella based on 3D printing being prepared, the shape memory for preparing gathers
Close object lamella method the following steps are included:
Step 1: preparing curing solution:
Selected shape memory polymer uses material as lamella, has matched curing solution；
Step 2: production shape-memory polymer basal layer:
Shape-memory polymer basal layer 1 can be printed by two kinds of 3D printing methods,
The first 3D printing method: by squeezing out solidification process, 3D printing shape-memory polymer wire rod is produced, is utilized
3D printer will squeeze out cured 3D printing shape-memory polymer wire rod and print shape-memory polymer basal layer；
Second of 3D printing method: utilizing 3D printer, according to the shape-memory polymer sheet-shaped being pre-designed,
Under UV irradiation or high temperature curing conditions, is solidified while printing lamella, obtain the shape memory polymers of required shape
Object basal layer；
Step 3: pre-stretching shape-memory polymer basal layer:
When heating basic point is rectangle,
The heating basic point controlled on shape-memory polymer basal layer is motionless, is higher than shape-memory polymer in environment temperature
Equal twin shafts pre-stretching is carried out in the sweat box that 15 DEG C of glass transition temperature, maintains the pre-stretching and sweat box temperature is down to room
Temperature, shape-memory polymer basal layer can keep it to be pre-stretched shape；
When heating basic point is regular hexagon,
The heating basic point controlled on shape-memory polymer basal layer is motionless, is higher than shape-memory polymer in environment temperature
In the sweat box that 15 DEG C of glass transition temperature in X direction, Y-direction and Z-direction be pre-stretched, maintain the pre-stretching and will be warm
Degree box temperature degree is down to room temperature, and shape-memory polymer basal layer can keep it to be pre-stretched shape；
Step 4: production heating interconnection line layer:
Using 3D printer, conductive heating interconnection is printed on the shape-memory polymer basal layer for completing pre-stretching
Line layer；
Step 5: completing the recovery of shape of pre-stretching shape-memory polymer basal layer:
The shape-memory polymer substrate for being printed with the pre-stretching of heating interconnection line layer is placed in sweat box and is heated, it will
The heating temperature of sweat box is adjusted to more than shape-memory polymer glass transition temperature, completes pre-stretching shape memory polymers
The recovery of shape of object basal layer, at this point, the fire-bar of heating interconnection line layer is S-shaped under the action of Buckling modes；
Step 6: production shape-memory polymer coating 3:
Continue to print shape-memory polymer coating on shape-memory polymer basal layer after recovery of shape, it can
To print shape-memory polymer coating by two kinds of 3D printing methods,
The first 3D printing method:
By squeezing out solidification process, 3D printing shape-memory polymer wire rod is produced, using 3D printer, will be squeezed out admittedly
The 3D printing shape-memory polymer wire rod of change prints shape-memory polymer coating；
Second of 3D printing method: utilizing 3D printer, according to the shape-memory polymer sheet-shaped being pre-designed,
Under UV irradiation or high temperature curing conditions, is solidified while printing lamella, obtain the shape memory polymers of required shape
Object coating；
And reserve two at the both ends of shape-memory polymer coating and set string holes, by the first binding post and the second binding post
It is inserted into two respectively to set in string holes, so far, completes the preparation of the electric drive shape-memory polymer lamella.
A method of the electric drive shape-memory polymer lamella based on 3D printing being prepared, the shape memory for preparing gathers
Close object lamella method the following steps are included:
Step 1: preparing curing solution:
Selected shape memory polymer uses material as lamella, and a certain proportion of lead is mixed in shape-memory polymer
Electric material has matched curing solution, as the sheet layer material used；
Step 2: production shape-memory polymer lamella:
Shape-memory polymer lamella can be printed by two kinds of 3D printing methods,
The first 3D printing method: by squeezing out solidification process, 3D printing shape-memory polymer wire rod is produced, is utilized
3D printer will squeeze out cured 3D printing shape-memory polymer wire rod and print shape-memory polymer lamella；
Second of 3D printing method: utilizing 3D printer, according to the shape-memory polymer sheet-shaped being pre-designed,
Under UV irradiation or high temperature curing conditions, is solidified while printing lamella, obtain the shape memory polymers of required shape
Object lamella so far completes the preparation of the electric drive shape-memory polymer lamella.
The present invention has the effect that compared with prior art
1, shape-memory polymer lamella itself entrainment heating interconnection line layer of the present invention, can carry out conductive heater,
It does not need to heat material using external environment, it is more convenient.It overcomes due to deforming big and leads to adding for paste outside
Phenomena such as hotting mask falls off or resistance wire is pulled off；
2, shape-memory polymer basal layer of the invention and shape-memory polymer coating are by epoxy shape memory
In polymer, polyimides shape-memory polymer, cyanate shape-memory polymer or styrene shape-memory polymer
A kind of shape-memory polymer matrix and the single-walled carbon nanotube of incorporation, multi-walled carbon nanotube, carbon nanometer paper, carbon dust, nickel powder,
Fe3O4One or more conductive material compositions such as particle.And conductivity, which can according to need, to be designed, and control can be passed through
Single-walled carbon nanotube, multi-walled carbon nanotube, carbon nanometer paper, carbon dust, the nickel powder, Fe of incorporation3O4The ratio of the conductive materials such as particle is come
Conductivity is controlled, glass transition temperature and its heating power requirement of different shape memory polymer matrix are adapted to this；
3, the method for electric drive shape-memory polymer lamella of the preparation based on 3D printing of the present invention, utilizes 3D printing
Machine can complete the printing of different all kinds of shape-memory polymer lamellas of original shape；As needed, select different lamella and
For different printing types by when the shape-memory polymer lamella printed access circuit and when electrified regulation, which can be complete
At the imparting of temporary shapes and the reply of shape.
Detailed description of the invention
Fig. 1 is the main view of shape-memory polymer basal layer (heating lamella is rectangle)；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the side view of Fig. 1；
Fig. 4 is the perspective view of shape-memory polymer basal layer (heating lamella is rectangle)；
Fig. 5 is the main view of the heating interconnection line layer before buckling (heating lamella is rectangle)；
Fig. 6 is the top view of Fig. 5；
Fig. 7 is the side view of Fig. 5；
Fig. 8 is the perspective view of the heating interconnection line layer before buckling (heating lamella is rectangle)；
Fig. 9 is the main view of the heating interconnection line layer after buckling (heating lamella is rectangle)；
Figure 10 is the top view of Fig. 9；
Figure 11 is the side view of Fig. 9；
Figure 12 is the perspective view of the heating interconnection line layer after buckling (heating lamella is rectangle)；
Figure 13 is original-shape schematic diagram of the invention；
Figure 14 is partial enlarged view of the Figure 13 at I；
Figure 15 is interim figuration schematic shapes of the invention；
Figure 16 is the main view (heating lamella be positive hexagon) of shape-memory polymer basal layer；
Figure 17 is the main view (heating lamella be positive hexagon) of the heating interconnection line layer before buckling.
Specific embodiment
Specific embodiment 1: illustrating that present embodiment, one kind of present embodiment are based on 3D printing in conjunction with Fig. 1 to Figure 17
Electric drive shape-memory polymer lamella, it include shape-memory polymer basal layer 1, heating interconnection line layer 2, shape memory
Polymer covering 3, the first binding post 4 and the second binding post 5, shape-memory polymer basal layer 1 are laminated structure, shape note
Recall uniformly distributed multiple heating basic point 1-1, heating basic point 1-1 and shape-memory polymer substrate on the upper surface of polymeric substrate layers 1
Layer 1 is an integral structure；Heating interconnection line layer 2 is fitted in the upper surface of heating basic point 1-1, and heating interconnection line layer 2 is added by multiple
Backing layer 2-1 and multiple fire-bar 2-2 connects and composes reticular structure, and heating lamella 2-1 and fire-bar 2-2 is an integral structure,
Multiple heating lamella 2-1 are consistent with multiple heating shapes of basic point 1-1 and are arranged in a one-to-one correspondence；Shape-memory polymer coating
3 are placed in the top of heating interconnection line layer 2, and the both ends of shape-memory polymer coating 3 open up one respectively and set string holes, and first connects
Terminal 4 and the second binding post 5 be separately mounted to 3 both ends of shape-memory polymer coating set in string holes and with heating interconnection line
Layer 2 connects.
Specific embodiment 2: illustrating present embodiment, the heating interconnection line layer 2 of present embodiment in conjunction with Fig. 5 and Figure 16
In heating lamella 2-1 be rectangle or regular hexagon.So set, the shape of heating lamella 2-1 and the shape of heating basic point 1-1
Unanimously, the shape for heating basic point 1-1 is different, corresponding different pre-stretching mode.Other compositions and connection relationship and specific implementation
Mode one is identical.
Specific embodiment 3: embodiment is described with reference to Fig.5, working as present embodiment, is heated in interconnection line layer 2
When heating lamella 2-1 is rectangle, the multiple heating lamella 2-1 heated in interconnection line layer 2 are arranged in a manner of rectangular array, adjacent
A fire-bar 2-2 is equipped between two heating lamella 2-1.So set, when heating basic point 1-1 is rectangle, in environment temperature
The twin shafts pre-stretchings such as degree carries out in the sweat box higher than 15 DEG C of shape-memory polymer glass transition temperature.Other compositions and company
It is the same as one or two specific embodiments to connect relationship.
Specific embodiment 4: embodiment is described with reference to Fig. 16, present embodiment is worked as in heating interconnection line layer 2
When heating lamella 2-1 is regular hexagon, heating interconnection line layer 2 includes multiple row heating unit, and each column heating unit includes multiple
Heat lamella 2-1 and multiple fire-bar 2-2；One is equipped between two neighboring heating lamella 2-1 in each column heating unit to add
Heat 2-2；Neighbouring two in each column heating unit in any one heating lamella 2-1 and column heating unit adjacent thereto
Equilateral triangle is formed by fire-bar 2-2 between a heating lamella 2-1.So set, when heating basic point 1-1 is regular hexagon
When, environment temperature higher than in 15 DEG C of shape-memory polymer glass transition temperature of sweat box in X direction, Y-direction and Z-direction
It is pre-stretched.Other compositions and connection relationship are identical as specific embodiment one, two or three.
Specific embodiment 5: illustrating present embodiment, the heating interconnection line layer 2 of present embodiment in conjunction with Fig. 9 to Figure 12
In heating lamella 2-1 thickness be greater than fire-bar 2-2 thickness.So set, completing buckling movement convenient for fire-bar 2-2.
Other compositions and connection relationship and specific embodiment one, two, three or four are identical.
Specific embodiment 6: illustrating present embodiment in conjunction with Fig. 1 to Figure 17, a kind of of present embodiment is prepared based on 3D
The method of the electric drive shape-memory polymer lamella of printing, the method for preparing shape-memory polymer lamella includes following
Step:
Step 1: preparing curing solution:
Selected shape memory polymer uses material as lamella, has matched curing solution；
Step 2: production shape-memory polymer basal layer 1:
Shape-memory polymer basal layer 1 can be printed by two kinds of 3D printing methods,
The first 3D printing method: by squeezing out solidification process, 3D printing shape-memory polymer wire rod is produced, is utilized
3D printer will squeeze out cured 3D printing shape-memory polymer wire rod and print shape-memory polymer basal layer 1；
Second of 3D printing method: utilizing 3D printer, according to the shape-memory polymer sheet-shaped being pre-designed,
Under UV irradiation or high temperature curing conditions, is solidified while printing lamella, obtain the shape memory polymers of required shape
Object basal layer 1；
Step 3: pre-stretching shape-memory polymer basal layer 1:
When heating basic point 1-1 is rectangle,
The heating basic point 1-1 controlled on shape-memory polymer basal layer 1 is motionless, poly- higher than shape memory in environment temperature
Carry out in 15 DEG C of object glass transition temperature of sweat box equal twin shafts pre-stretching is closed, the pre-stretching is maintained and drops sweat box temperature
To room temperature, shape-memory polymer basal layer 1 can keep it to be pre-stretched shape；
When heating basic point 1-1 is regular hexagon,
The heating basic point 1-1 controlled on shape-memory polymer basal layer 1 is motionless, poly- higher than shape memory in environment temperature
Close in 15 DEG C of object glass transition temperature of sweat box in X direction, Y-direction and Z-direction be pre-stretched, maintain the pre-stretching simultaneously
Sweat box temperature is down to room temperature, shape-memory polymer basal layer 1 can keep it to be pre-stretched shape；
Step 4: production heating interconnection line layer 2:
Using 3D printer, it is mutual that conductive heating is printed on the shape-memory polymer basal layer 1 for completing pre-stretching
On line layer 2；
Step 5: completing the recovery of shape of pre-stretching shape-memory polymer basal layer 1:
The shape-memory polymer basal layer 1 for being printed with the pre-stretching of heating interconnection line layer 2 is placed in sweat box and is heated,
The heating temperature of sweat box is adjusted to more than shape-memory polymer glass transition temperature, it is poly- to complete pre-stretching shape memory
The recovery of shape of polymer substrates layer 1, at this point, the fire-bar 2-2 of heating interconnection line layer 2 is S-shaped under the action of Buckling modes；
Step 6: production shape-memory polymer coating 3:
Continue to print shape-memory polymer coating 3 on shape-memory polymer basal layer 1 after recovery of shape,
Shape-memory polymer coating 3 can be printed by two kinds of 3D printing methods,
The first 3D printing method:
By squeezing out solidification process, 3D printing shape-memory polymer wire rod is produced, using 3D printer, will be squeezed out admittedly
The 3D printing shape-memory polymer wire rod of change prints shape-memory polymer coating 3；
Second of 3D printing method: utilizing 3D printer, according to the shape-memory polymer sheet-shaped being pre-designed,
Under UV irradiation or high temperature curing conditions, is solidified while printing lamella, obtain the shape memory polymers of required shape
Object coating 3；
And reserve two at the both ends of shape-memory polymer coating 3 and set string holes, by the first binding post 4 and the second wiring
Column 5 is inserted into two respectively and sets in string holes, so far, completes the preparation of the electric drive shape-memory polymer lamella.
Specific embodiment 7: illustrate present embodiment in conjunction with Fig. 1 to Figure 17, one the step of present embodiment described in
Shape-memory polymer is epoxy shape-memory polymer, polyimides shape-memory polymer, cyanate shape memory polymers
Object or styrene shape-memory polymer.So set, according to material select different shapes to remember using the environment of temperature
Recall polymeric material, main cause is that the glass transition temperature of different shape memory polymer materials is different, styrene shape
The glass transition temperature of memory polymer is lower, generally between 40-80 degrees Celsius, epoxy and polyimides shape memory
The glass transition temperature of polymer is probably between 70-150 degrees Celsius, the glass transition of cyanate shape-memory polymer
About 180 degrees centigrade of temperature, also up to 200 degrees Celsius.Other compositions and connection relationship and specific embodiment one, two, three,
Four, five or six is identical.
Specific embodiment 8: illustrate present embodiment in conjunction with Fig. 1 to Figure 17, four the step of present embodiment described in
Heating interconnection line layer 2 is fabricated by conductive material.So set, shape-memory polymer lamella itself the entrainment heating is mutual
On line layer 2 does not need to heat material using external environment, more convenient；Moreover, overcoming due to deforming big and causing
Phenomena such as heating film of paste outside falls off or resistance wire is pulled off.Other compositions and connection relationship and specific embodiment
One, two, three, four, five, six or seven are identical.
Specific embodiment 9: a kind of electric drive shape-memory polymer piece prepared based on 3D printing of present embodiment
Layer method, the method for preparing shape-memory polymer lamella the following steps are included:
Step 1: preparing curing solution:
Selected shape memory polymer uses material as lamella, and a certain proportion of lead is mixed in shape-memory polymer
Electric material has matched curing solution, as the sheet layer material used；
Step 2: production shape-memory polymer lamella:
Shape-memory polymer lamella can be printed by two kinds of 3D printing methods,
The first 3D printing method: by squeezing out solidification process, 3D printing shape-memory polymer wire rod is produced, is utilized
3D printer will squeeze out cured 3D printing shape-memory polymer wire rod and print shape-memory polymer lamella；
Second of 3D printing method: utilizing 3D printer, according to the shape-memory polymer sheet-shaped being pre-designed,
Under UV irradiation or high temperature curing conditions, is solidified while printing lamella, obtain the shape memory polymers of required shape
Object lamella so far completes the preparation of the electric drive shape-memory polymer lamella.
Specific embodiment 10: shape-memory polymer described in the step of present embodiment one is epoxy shape memory
Polymer, polyimides shape-memory polymer, cyanate shape-memory polymer or styrene shape-memory polymer, it is conductive
Material is single-walled carbon nanotube, multi-walled carbon nanotube, carbon nanometer paper, carbon dust, nickel powder and Fe3O4One of particle is a variety of.Such as
This setting, can be by controlling the single-walled carbon nanotube, the multi-walled carbon nanotube, carbon nanometer that mix in shape-memory polymer matrix
Paper, carbon dust, nickel powder, Fe3O4The ratio of the conductive materials such as particle controls conductivity, adapts to different shape memory polymers with this
Glass transition temperature and its heating power requirement of object matrix.Other compositions and connection relationship and specific embodiment one, two,
Three, four, five, six, seven, eight or nine are identical.
Working principle:
Electric drive shape-memory polymer lamella original-shape of the present invention based on 3D printing, such as attached drawing 13 and Figure 14
It is shown.First binding post 4 and the second binding post 5 are accessed into circuit, and are powered, heating interconnection line layer 2 can generate Joule heat,
Circumferential shape memory polymer (shape-memory polymer basal layer 1 and shape-memory polymer coating 3) is heated, it can
To carry out figuration to it, as shown in Fig. 15；Then it maintains the shape and powers off cooling, shape-memory polymer lamella can be kept
The shape；Electrified regulation is carried out to it again, shape-memory polymer can be returned to its original-shape, such as attached drawing 13 and Figure 14 institute
Show.
Claims (10)
1. a kind of electric drive shape-memory polymer lamella based on 3D printing, it is characterised in that: it includes shape memory polymers
Object basal layer (1), heating interconnection line layer (2), shape-memory polymer coating (3), the first binding post (4) and the second binding post
(5), shape-memory polymer basal layer (1) is laminated structure, is evenly distributed on the upper surface of shape-memory polymer basal layer (1) more
A heating basic point (1-1), heating basic point (1-1) are an integral structure with shape-memory polymer basal layer (1)；Heat interconnection line
Layer (2) is fitted in the upper surface of heating basic point (1-1), heats interconnection line layer (2) by multiple heating lamellas (2-1) and multiple heating
Item (2-2) connects and composes reticular structure, and heating lamella (2-1) is an integral structure with fire-bar (2-2), multiple heating lamellas
(2-1) is consistent with multiple heating shapes of basic point (1-1) and is arranged in a one-to-one correspondence；Shape-memory polymer coating (3) is placed in
The top of interconnection line layer (2) is heated, the both ends of shape-memory polymer coating (3) open up one respectively and set string holes, and first connects
Terminal (4) and the second binding post (5) be separately mounted to shape-memory polymer coating (3) both ends set in string holes and with heating
Interconnection line layer (2) connection.
2. a kind of electric drive shape-memory polymer lamella based on 3D printing according to claim 1, it is characterised in that:
Heating the heating lamella (2-1) in interconnection line layer (2) is rectangle or regular hexagon.
3. a kind of electric drive shape-memory polymer lamella based on 3D printing according to claim 2, it is characterised in that:
Multiple heating lamella (2- when heating the heating lamella (2-1) in interconnection line layer (2) is rectangle, in heating interconnection line layer (2)
1) it is arranged in a manner of rectangular array, a fire-bar (2-2) is equipped between two neighboring heating lamella (2-1).
4. a kind of electric drive shape-memory polymer lamella based on 3D printing according to claim 2, it is characterised in that:
When heating the heating lamella (2-1) in interconnection line layer (2) is regular hexagon, heating interconnection line layer (2) includes that multiple row heating is single
Member, each column heating unit include multiple heating lamellas (2-1) and multiple fire-bars (2-2)；It is adjacent in each column heating unit
A fire-bar (2-2) is equipped between two heating lamellas (2-1)；Any one heating lamella (2- in each column heating unit
Formed between two neighbouring heating lamellas (2-1) 1) and in column heating unit adjacent thereto by fire-bar (2-2) etc.
Side triangle.
5. a kind of electric drive shape-memory polymer lamella based on 3D printing according to claim 1,2,3 or 4, special
Sign is: the thickness of the heating lamella (2-1) in heating interconnection line layer (2) is greater than the thickness of fire-bar (2-2).
6. a kind of electric drive shape memory polymers prepared in Claims 1-4 described in any claim based on 3D printing
The method of object lamella, it is characterised in that: the method for preparing shape-memory polymer lamella the following steps are included:
Step 1: preparing curing solution:
Selected shape memory polymer uses material as lamella, has matched curing solution；
Step 2: production shape-memory polymer basal layer (1):
Shape-memory polymer basal layer (1) can be printed by two kinds of 3D printing methods,
The first 3D printing method: by squeezing out solidification process, 3D printing shape-memory polymer wire rod is produced, is beaten using 3D
Print machine will squeeze out cured 3D printing shape-memory polymer wire rod and print shape-memory polymer basal layer (1)；
Second of 3D printing method: utilizing 3D printer, according to the shape-memory polymer sheet-shaped being pre-designed, shines in UV
Penetrate or high temperature curing conditions under, solidified while printing lamella, obtain the shape-memory polymer base of required shape
Bottom (1)；
Step 3: pre-stretching shape-memory polymer basal layer (1):
When heating basic point (1-1) is rectangle,
The heating basic point (1-1) controlled on shape-memory polymer basal layer (1) is motionless, poly- higher than shape memory in environment temperature
Carry out in 15 DEG C of object glass transition temperature of sweat box equal twin shafts pre-stretching is closed, the pre-stretching is maintained and drops sweat box temperature
To room temperature, shape-memory polymer basal layer (1) can keep it to be pre-stretched shape；
When heating basic point (1-1) is regular hexagon,
The heating basic point (1-1) controlled on shape-memory polymer basal layer (1) is motionless, poly- higher than shape memory in environment temperature
Close in 15 DEG C of object glass transition temperature of sweat box in X direction, Y-direction and Z-direction be pre-stretched, maintain the pre-stretching simultaneously
Sweat box temperature is down to room temperature, shape-memory polymer basal layer (1) can keep it to be pre-stretched shape；
Step 4: production heating interconnection line layer (2):
Using 3D printer, conductive heating interconnection is printed on the shape-memory polymer basal layer (1) for completing pre-stretching
Line layer (2)；
Step 5: completing the recovery of shape of pre-stretching shape-memory polymer basal layer (1):
The shape-memory polymer basal layer (1) for being printed with the pre-stretching of heating interconnection line layer (2) is placed in heating in sweat box,
The heating temperature of sweat box is adjusted to more than shape-memory polymer glass transition temperature, it is poly- to complete pre-stretching shape memory
The recovery of shape of polymer substrates layer (1), at this point, the fire-bar (2-2) of heating interconnection line layer (2) is under the action of Buckling modes
S-shaped；
Step 6: production shape-memory polymer coating (3):
Continue to print shape-memory polymer coating (3) on shape-memory polymer basal layer (1) after recovery of shape,
Shape-memory polymer coating (3) can be printed by two kinds of 3D printing methods,
The first 3D printing method:
By squeezing out solidification process, 3D printing shape-memory polymer wire rod is produced, using 3D printer, will be squeezed out cured
3D printing shape-memory polymer wire rod prints shape-memory polymer coating (3)；
Second of 3D printing method: utilizing 3D printer, according to the shape-memory polymer sheet-shaped being pre-designed, shines in UV
Penetrate or high temperature curing conditions under, solidified while printing lamella, the shape-memory polymer for obtaining required shape covers
Cap rock (3)；
And reserve two at the both ends of shape-memory polymer coating (3) and set string holes, by the first binding post (4) and the second wiring
Column (5) is inserted into two respectively and sets in string holes, so far, completes the preparation of the electric drive shape-memory polymer lamella.
7. a kind of method of electric drive shape-memory polymer lamella prepared based on 3D printing according to claim 6,
It is characterized by: shape-memory polymer described in step 1 is epoxy shape-memory polymer, polyimides shape memory
Polymer, cyanate shape-memory polymer or styrene shape-memory polymer.
8. a kind of method of electric drive shape-memory polymer lamella prepared based on 3D printing according to claim 6,
It is characterized by: heating interconnection line layer described in step 4 (2) is fabricated by conductive material.
9. a kind of method of the electric drive shape-memory polymer lamella prepared based on 3D printing, it is characterised in that: the preparation
The method of shape-memory polymer lamella the following steps are included:
Step 1: preparing curing solution:
Selected shape memory polymer uses material as lamella, and a certain proportion of conduction material is mixed in shape-memory polymer
Material, has matched curing solution, as the sheet layer material used；
Step 2: production shape-memory polymer lamella:
Shape-memory polymer lamella can be printed by two kinds of 3D printing methods,
The first 3D printing method: by squeezing out solidification process, 3D printing shape-memory polymer wire rod is produced, is beaten using 3D
Print machine will squeeze out cured 3D printing shape-memory polymer wire rod and print shape-memory polymer lamella；
Second of 3D printing method: utilizing 3D printer, according to the shape-memory polymer sheet-shaped being pre-designed, shines in UV
Penetrate or high temperature curing conditions under, solidified while printing lamella, obtain the shape-memory polymer piece of required shape
Layer, so far, completes the preparation of the electric drive shape-memory polymer lamella.
10. a kind of method of electric drive shape-memory polymer lamella prepared based on 3D printing according to claim 9,
It is characterized by: shape-memory polymer described in step 1 is epoxy shape-memory polymer, polyimides shape memory
Polymer, cyanate shape-memory polymer or styrene shape-memory polymer, conductive material are single-walled carbon nanotube, multi wall
Carbon nanotube, carbon nanometer paper, carbon dust, nickel powder and Fe3O4One of particle is a variety of.
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| CN112848268A (en) * | 2020-12-21 | 2021-05-28 | 青岛理工大学 | Fractal curve stretchable heating circuit printing-based 4D printing method |
| WO2022088219A1 (en) * | 2020-10-29 | 2022-05-05 | 江苏大学 | 4d-printed electrically responsive folding/unfolding composite material, fabricating method therefor, and shape memory behavior regulating method thereof |
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