CN105553458B - A kind of driving method of the shape-memory polymer based on sound control - Google Patents
A kind of driving method of the shape-memory polymer based on sound control Download PDFInfo
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- CN105553458B CN105553458B CN201511005391.7A CN201511005391A CN105553458B CN 105553458 B CN105553458 B CN 105553458B CN 201511005391 A CN201511005391 A CN 201511005391A CN 105553458 B CN105553458 B CN 105553458B
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/94005—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated activated by voice or sound
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Abstract
A kind of driving method of the shape-memory polymer based on sound control, the present invention relates to the driving methods of the shape-memory polymer based on sound control.It is dull and complicated for operation the purpose of the present invention is to solve existing shape-memory polymer driving method form, the problem of driving source will be with shape-memory polymer contact stimulus.Detailed process is：Step 1: prepare shape-memory polymer test specimen；Step 2: rectifier will be connected with, the voice recognition control driver of temperature sensor for driving shape-memory polymer test specimen, realizes the driving of the shape-memory polymer based on sound control.The present invention is applied to the drive area of the shape-memory polymer of sound control.
Description
Technical field
The present invention relates to the driving methods of the shape-memory polymer based on sound control.
Background technology
Big reply that shape memory polymer material can actively generate up to 100% under certain condition effect deforms,
Therefore huge application potential is shown in intelligent active deformation structural research field.Meanwhile shape-memory polymer medicine,
The fields such as space flight, intelligent control are widely applied prospect so that it receives more and more attention.Shape-memory polymer is pressed
The difference of exiting form can be divided into the types such as thermotropic, electroluminescent, photic and solution driving.It, can be from temporary under environmental stimuli
Shape, color, size, rigidity should change back to initial state.
Rational driving method plays the extensive use of smart material and structure key effect, different application environments
The method that can select reasonable design is effectively driven.The development innovation of driving method has further been widened shape memory and has been gathered
Close the application of object material.Due to the advantages that exiting form is simple, the big and fast response time that can reply deformation quantity so that thermotropic shape
Shape memory polymer is that current research is the most extensive.The heat of thermal shape memory polymer -- mechanically deform process：
More than glass transition temperature Tg, applying external force to shape-memory polymer (playing primary state) makes its deformation；Keeping outer boundary treaty
Under the premise of beam, it is made to be cooled to below Tg certain temperatures, removes external constraint, assigned deformation energy and remained behind (change for a long time
Form)；When being again heated to more than glass transition temperature, shape-memory polymer can occur recovery of shape and (reply automatically
State).So far, the deformation cycle of " remembered primary state -- fixed deformation state -- and restored primary state " is completed.Existing shape memory polymers
Object driving method form is dull and complicated for operation, and driving source will be with shape-memory polymer contact stimulus, these all limit shape
Shape memory polymer is further applied；
Traditional audio-switch be under specific environment light using effects,sound excitation sound pick-up carry out acoustic-electric conversion come
Control electrical appliance unlatching, and after delay can auto power off energy-saving electronic switch.It is widely used in corridor, building
The places such as corridor, garden are modern very good novel green light switches.Audio-switch is generally by microphone, voice signal
Amplification, halfwave rectifier, light-operated, electronic switch, delay and alternating current switching circuit composition.
Invention content
It is dull and complicated for operation the purpose of the present invention is to solve existing shape-memory polymer driving method form, it drives
The problem of dynamic source will be with shape-memory polymer contact stimulus, and a kind of shape-memory polymer based on sound control proposed
Driving method.
Above-mentioned goal of the invention is achieved through the following technical solutions：
Step 1: prepare shape-memory polymer test specimen；
Step 2: rectifier will be connected with, the voice recognition control driver of temperature sensor, for driving shape memory
Polymer test specimen realizes the driving of the shape-memory polymer based on sound control.
Invention effect
The driving method of a kind of shape-memory polymer based on sound control using the present invention, by sound control and shape
Shape memory polymer combines, and provides a kind of driving method of the shape-memory polymer based on sound control, realizes shape memory
The application field of shape-memory polymer is widened in the long-range untouchable control of polymer driving.The present invention by sound this
The method of untouchable control driving shape-memory polymer, can reach and control similary sensitive degree of reaction with other contacts,
It is realized in 1min substantially to Recovery Process completion from sonic stimulation is received.
Optimization is improved to circuit on the basis of traditional audio-switch, obtains deforming with shape memory polymer material
Reply adaptable voice control system.After i.e. certain sonic stimulation, circuit is connected, and is delayed and certain time or is applied again
Circuit disconnects after certain sonic stimulation.During this, shape-memory polymer is heated to more than glass transition temperature, from
It is dynamic that recovery of shape occurs.It realizes and shape memory polymer material deformation-recovery process is driven by sound control.
The acoustic control shape-memory polymer drive system of the present invention can be good at perceiving the stimulation of sound, and shape memory gathers
Object is closed after corresponding sound stimulation is received, a series of change in shape can be automatically completed, return to the form of initial setting,
Based on this characteristic, which can be used for various locking relieving mechanisms and other sound control apparatus or acoustic driver device.
Particularly advantage of the invention is as follows：
1. solve the monotonicity of the existing driving method of shape-memory polymer and the complexity of operation.
2. the driving of the shape-memory polymer based on sound control realizes the long-range non-of shape-memory polymer driving
Contact controls.
3. realize sorption enhanced of the shape-memory polymer to acoustic wave energy.
Description of the drawings
Fig. 1 is flow chart of the present invention.
Specific embodiment
Specific embodiment one：The present embodiment will be described with reference to Fig. 1, a kind of shape based on sound control of present embodiment
The driving method of shape memory polymer is specifically prepared according to following steps：
Step 1: prepare shape-memory polymer test specimen；
Step 2: rectifier will be connected with, the voice recognition control driver of temperature sensor, for driving shape memory
Polymer test specimen realizes the driving of the shape-memory polymer based on sound control.
Specific embodiment two：The present embodiment is different from the first embodiment in that：Shape is remembered in the step 1
The material for recalling polymer test specimen is shape memory styrene-butadiene copolymer, shape memory trans-polyisoprene, shape note
Recall the thermosetting property shape of polynorbornene, shape memory polyurethane resin, the thermoplasticity shape-memory polymer of epoxies, epoxies
Shape memory polymer, phenylethylene shape-memory polymer, cyanate shape-memory polymer, bismaleimide shape note
Recall polymer, polyimides shape-memory polymer or polycaprolactone shape-memory polymer.
Other steps and parameter are same as the specific embodiment one.
Specific embodiment three：The present embodiment is different from the first and the second embodiment in that：The shape memory benzene
Ethylene-butadiene copolymer, shape memory trans-polyisoprene, shape memory polynorbornene, shape memory polyurethane tree
Fat, the thermoplasticity shape-memory polymer of epoxies, the thermoset shape memory polymer of epoxies, phenylethylene shape memory
Polymer, cyanate shape-memory polymer, bismaleimide shape-memory polymer, polyimides shape memory polymers
Each in object and polycaprolactone shape-memory polymer all contains carbon nanotube, carbon nano-fiber or carbon nanometer paper filler.
Other steps and parameter are the same as one or two specific embodiments.
Specific embodiment four：Unlike one of present embodiment and specific embodiment one to three：The step 1
In prepare shape-memory polymer test specimen；Detailed process is：
Its preparation process and curing mode are determined according to selected shape-memory polymer test specimen；
The preparation process of shape-memory polymer test specimen includes extrusion molding, injection molding, compression molding, moulding by casting；
The curing mode of shape-memory polymer test specimen includes hot setting and normal temperature cure, and high temperature is 27 DEG C~300 DEG C,
Room temperature is 20 DEG C~25 DEG C.
Other steps and one of parameter and specific embodiment one to three are identical.
Specific embodiment five：Unlike one of present embodiment and specific embodiment one to four：The step 2
In will be connected with rectifier, the voice recognition control driver of temperature sensor is real for driving shape-memory polymer test specimen
The now driving of the shape-memory polymer based on sound control；Detailed process is：
After the glass transition temperature for reaching shape-memory polymer, the shape-memory polymer test specimen of initial configuration is applied
External force is added to make its deformation；Under the premise of external force (external constraint) is kept, it is made to be cooled to below glass transition temperature centainly
Temperature, removes external force (external constraint), and shape-memory polymer keeps deformation states (assigning deformation to be kept)；
Wherein, the following certain temperature of the glass transition temperature is artificially set；
Rectifier is connected with, the voice recognition of temperature sensor controls driver after the voice signal of setting is received,
Voice recognition is controlled into drive circuit turn on automatically using audio frequency vibration principle (principle of similar microphone etc.), is known in sound
Not Kong Zhi drive circuit connect 50s in, shape-memory polymer experience electricity stimulation because in shape-memory polymer
There are carbon nanotube, carbon nano-fiber or carbon nanometer paper filler in face, thus shape-memory polymer be automatically performed from deformation states to
The Recovery Process of initial configuration, voice recognition control drive circuit are automatically closed after connecting 50s, realize based on sound control
The driving of shape-memory polymer；
Wherein, the audiorange of (in order to improve the anti-interference of device) described voice signal set is 6000-
10000Hz (is equivalent to and claps the hands in the range of 8 meters of distance means).
Other steps and one of parameter and specific embodiment one to four are identical.
Specific embodiment six：Unlike one of present embodiment and specific embodiment one to four：The step 2
In will be connected with rectifier, the voice recognition control driver of temperature sensor is real for driving shape-memory polymer test specimen
The now driving of the shape-memory polymer based on sound control；Detailed process is：
After the glass transition temperature for reaching shape-memory polymer, the shape-memory polymer test specimen of initial configuration is applied
External force is added to make its deformation；Under the premise of external force (external constraint) is kept, it is made to be cooled to below glass transition temperature centainly
Temperature, removes external force (external constraint), and shape-memory polymer keeps deformation states (assigning deformation to be kept)；
Wherein, the following certain temperature of the glass transition temperature is artificially set；
Rectifier is connected with, has timer and counter, timer in the voice recognition control driver of temperature sensor
Interaction between counter makes shape-memory polymer test specimen only receive four sounds with specified time interval, example
Such as, four clappings of appropriate speed, and the sound of other random time intervals is then not responding to.It is easy to use and can
Lean on, specified time interval is set as 0.5 second to 1 second (in the natural frequency that people clap hands), (as long as in this way, user naturally
That claps hands under four or interval 0.5 second to 1 second blows four tones of standard Chinese pronunciation whistle) it is connected with rectifier, the voice recognition control of temperature sensor
When driver processed is connected to four sounds that time interval is 0.5 second to 1 second, rectifier is connected with, the sound of temperature sensor is known
The drive circuit switch not controlled is opened, and shape-memory polymer experiences the stimulation of electricity, because in shape-memory polymer
There are carbon nanotube, carbon nano-fiber or carbon nanometer paper filler in face, thus shape-memory polymer be automatically performed from deformation states to
To the Recovery Process of initial configuration, the driving of the shape-memory polymer based on sound control is realized.
Other steps and one of parameter and specific embodiment one to four are identical.
Specific embodiment seven：Unlike one of present embodiment and specific embodiment one to six：The step 2
In be connected with rectifier, the voice recognition control driver of temperature sensor is changed by material energy caused by acoustic vibration
Realize that voice recognition control or the conversion by voice signal-electric signal realize that voice recognition controls.
Other steps and one of parameter and specific embodiment one to six are identical.
Beneficial effects of the present invention are verified using following embodiment：
Embodiment one：
A kind of driving method of the shape-memory polymer based on sound control of the present embodiment is specifically according to following steps
It prepares：
The preparation method of material of the present invention is the customary preparation methods of shape-memory polymer, including：Extrusion molding,
Injection molding, compression molding, moulding by casting.
The shape memory epoxy resin system containing carbon nanotube particulate is equipped with, shape note is prepared using injection molding process
Recall polymer test specimen.Manufacturing method used in this patent is specific example in the numerous preparation methods of shape-memory polymer,
It is not the limitation to preparation method.
The preparation method of shape-memory polymer test specimen is realized by following steps：
(1) it according to the temperature range and structural requirement used, determines shape-memory polymer type, shape memory is configured
Polymer preserves the mixture after reaction under cryogenic；
(2) according to the shape of the variety classes of selected shape-memory polymer and structure determination mold；
(3) according to the difference of mold and shape-memory polymer, curing mode and the preparation of shape-memory polymer are determined
Technique；
(4) after shape-memory polymer structure fully cures, by cured material and mold releasability.
After the glass transition temperature for reaching shape-memory polymer, the shape-memory polymer structure of initial configuration is applied
External force is added to make its deformation；Under the premise of external constraint is kept, it is made to be cooled to the following certain temperature of glass transition temperature, is removed
External constraint is removed, deformation is assigned and is kept (deformation states)；
It is wherein, described that it is made to be cooled in the following certain temperature of glass transition temperature certain temperature is 2 DEG C~50 DEG C；
Rectifier is connected with, the voice recognition control driver of temperature sensor utilizes audio frequency vibration principle by voice recognition
Drive circuit turn on automatically is controlled, in the 50s connected in voice recognition control drive circuit, shape-memory polymer is automatic
The Recovery Process of the form from deformation states to initial setting is completed, in order to improve the anti-interference of device, sets voice recognition control
The audiorange of driver processed identification (is equivalent to and claps the hands in the range of 8 meters of distance means) for 6000-10000Hz, voice recognition
Control drive circuit is automatically closed after connecting 50s, realizes the driving of the shape-memory polymer based on sound control.
Shape memory polymer material is shape memory styrene copolymer, and filler is carbon nanometer paper.
Embodiment two：
A kind of driving method of the shape-memory polymer based on sound control of the present embodiment is specifically according to following steps
It prepares：
The preparation method of material of the present invention is the customary preparation methods of shape-memory polymer, including：Extrusion molding,
Injection molding, compression molding, moulding by casting.
The shape memory epoxy resin system containing carbon nanotube particulate is equipped with, shape note is prepared using injection molding process
Recall polymer test specimen.Manufacturing method used in this patent is specific example in the numerous preparation methods of shape-memory polymer,
It is not the limitation to preparation method.
The preparation method of shape-memory polymer test specimen is realized by following steps：
(1) it according to the temperature range and structural requirement used, determines shape-memory polymer type, shape memory is configured
Polymer preserves the mixture after reaction under cryogenic；
(2) according to the shape of the variety classes of selected shape-memory polymer and structure determination mold；
(3) according to the difference of mold and shape-memory polymer, curing mode and the preparation of shape-memory polymer are determined
Technique；
(4) after shape-memory polymer structure fully cures, by cured material and mold releasability；
After the glass transition temperature for reaching shape-memory polymer, the shape-memory polymer test specimen of initial configuration is applied
External force is added to make its deformation；Under the premise of external force (external constraint) is kept, it is made to be cooled to below glass transition temperature centainly
Temperature, removes external force (external constraint), and shape-memory polymer keeps deformation states (assigning deformation to be kept)；
Wherein, the following certain temperature of the glass transition temperature is artificially set；
Rectifier is connected with, has timer and counter, timer in the voice recognition control driver of temperature sensor
Interaction between counter makes shape-memory polymer structure only receive four sounds with specified time interval, example
Such as, four clappings of appropriate speed, and the sound of other random time intervals is then not responding to.It is easy to use and can
Lean on, specified time interval is set as 0.5 second to 1 second (in the natural frequency that people clap hands), (as long as in this way, user naturally
That claps hands under four or interval 0.5 second to 1 second blows four tones of standard Chinese pronunciation whistle) it is connected with rectifier, the voice recognition control of temperature sensor
When driver processed is connected to four sounds that time interval is 0.5 second to 1 second, rectifier is connected with, the sound of temperature sensor is known
The drive circuit switch not controlled is opened, and shape-memory polymer automatically reverts to initial memory state, realizes based on sound
The driving of the shape-memory polymer of control.
Based on sound control driving shape-memory polymer locking relieving mechanism the course of work be divided into locking process and
Release process；When shape-memory polymer is in fixed deformation state, shape-memory polymer locking relieving mechanism is locking state,
According to application demand, when shape-memory polymer locking relieving mechanism needs unlock, apply sonic stimulation, shape memory polymers
Object automatically reverts to initial memory state, and shape-memory polymer locking relieving mechanism is realized unlock, realized based on sound control
Shape-memory polymer driving；The design such as commutator temperature sensor gathers based on the shape memory that sound control drives
It closes inside object locking relieving mechanism.
The present invention can also have other various embodiments, without deviating from the spirit and substance of the present invention, this field
Technical staff makes various corresponding changes and deformation in accordance with the present invention, but these corresponding changes and deformation should all belong to
The protection domain of appended claims of the invention.
Claims (2)
1. a kind of driving method of the shape-memory polymer based on sound control, it is characterised in that a kind of based on sound control
The driving method of shape-memory polymer is specifically what is followed the steps below：
Step 1: prepare shape-memory polymer test specimen；
Step 2: rectifier will be connected with, the voice recognition control driver driving shape-memory polymer examination of temperature sensor
Part realizes the driving of the shape-memory polymer based on sound control；
The material of shape-memory polymer test specimen is shape memory styrene-butadiene copolymer in the step 1, shape is remembered
Recall the thermoplasticity shape memory of trans-polyisoprene, shape memory polynorbornene, shape memory polyurethane resin, epoxies
Polymer, the thermoset shape memory polymer of epoxies, phenylethylene shape-memory polymer, cyanate shape memory gather
Close object, bismaleimide shape-memory polymer, polyimides shape-memory polymer or polycaprolactone shape memory polymers
Object；
The shape memory styrene-butadiene copolymer, shape memory trans-polyisoprene, the poly- norborneol of shape memory
The thermoset shape memory polymerization of alkene, shape memory polyurethane resin, the thermoplasticity shape-memory polymer of epoxies, epoxies
Object, phenylethylene shape-memory polymer, cyanate shape-memory polymer, bismaleimide shape-memory polymer,
Each in polyimides shape-memory polymer and polycaprolactone shape-memory polymer is all containing carbon nanotube, carbon Nanowire
Dimension or carbon nanometer paper filler；
Shape-memory polymer test specimen is prepared in the step 1；Detailed process is：
Its preparation process and curing mode are determined according to selected shape-memory polymer test specimen；
The preparation process of shape-memory polymer test specimen includes extrusion molding, injection molding, compression molding, moulding by casting；
The curing mode of shape-memory polymer test specimen includes hot setting and normal temperature cure, and high temperature is 27 DEG C~300 DEG C, room temperature
It is 20 DEG C~25 DEG C；
Rectifier, the voice recognition control driver driving shape memory polymers of temperature sensor will be connected in the step 2
Object test specimen realizes the driving of the shape-memory polymer based on sound control；Detailed process is：
After the glass transition temperature for reaching shape-memory polymer, the shape-memory polymer test specimen of initial configuration is applied outer
Power makes its deformation；Under the premise of external force is kept, it is made to be cooled to the following certain temperature of glass transition temperature, removes external force,
Shape-memory polymer keeps deformation states；
Wherein, the following certain temperature of the glass transition temperature is artificially set；
Rectifier is connected with, the voice recognition of temperature sensor controls driver after the voice signal of setting is received, sound
Identification control drive circuit turn on automatically, in the 50s of voice recognition control drive circuit connection, shape-memory polymer
The Recovery Process from deformation states to initial configuration is automatically performed, voice recognition control drive circuit is automatically closed after connecting 50s,
Realize the driving of the shape-memory polymer based on sound control；
Wherein, the audiorange of the voice signal set is 6000-10000Hz；
Rectifier is connected in the step 2, the voice recognition control driver of temperature sensor is caused by acoustic vibration
Material energy variation realize voice recognition control or realize that voice recognition controls by the conversion of voice signal-electric signal.
2. a kind of driving method of the shape-memory polymer based on sound control according to claim 1, it is characterised in that：
Rectifier, the voice recognition control driver driving shape-memory polymer examination of temperature sensor will be connected in the step 2
Part realizes the driving of the shape-memory polymer based on sound control；Detailed process is：
After the glass transition temperature for reaching shape-memory polymer, the shape-memory polymer test specimen of initial configuration is applied outer
Power makes its deformation；Under the premise of external force is kept, it is made to be cooled to the following certain temperature of glass transition temperature, removes external force,
Shape-memory polymer keeps deformation states；
Wherein, the following certain temperature of the glass transition temperature is artificially set；
Rectifier is connected with, has timer and counter in the voice recognition control driver of temperature sensor, makes shape memory
Polymer test specimen only receives four sounds with specified time interval, and specified time interval is set as 0.5 second to 1 second, connection
There is rectifier, when the voice recognition control driver of temperature sensor is connected to four sounds that time interval is 0.5 second to 1 second,
Rectifier is connected with, the drive circuit switch of the voice recognition control of temperature sensor is opened, and shape-memory polymer is automatic
It completes from deformation states to the Recovery Process to initial configuration, realizes the driving of the shape-memory polymer based on sound control.
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