CN109836632A - A kind of functional shape memory composite material and its preparation method and application - Google Patents
A kind of functional shape memory composite material and its preparation method and application Download PDFInfo
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Abstract
The invention discloses a kind of preparation methods of functional shape memory composite material, it include: after functional modification agent, dodecyl sodium sulfate and soluble zinc salt are added to the water ultrasound, add alkali and hydrazine, oil bath reaction, vacuum drying obtains ternary functional modification agent after the black dispersion liquid of formation is centrifuged, is washed；It places after hypocrystalline Cross-linkable macromolecule, solvent, the agent of ternary functional modification and crosslinking agent are mixed, heat, stir and dried and vulcanizes in a mold, obtain functional shape memory composite material.The present invention discloses a kind of functional shape memory composite material that above-mentioned preparation method is prepared again.A kind of application the invention also discloses above-mentioned functional shape memory composite material in switching material field.Functional shape memory composite material preparation method of the invention is simple, and stability of material is strong, controlled shape, has very strong application potential as switching material, is suitble to large-scale production and application.
Description
Technical field
The present invention relates to technical field of composite materials, and in particular to a kind of functional shape memory composite material and its preparation
Methods and applications.
Background technique
Functional high-polymer composite material is the very burning hot a kind of material of current research, aerospace, it is electric,
Microelectronics, biomedicine, sensor and military field have very extensive research and application.And high molecular material itself is close
It spends the strong and at low cost feature of low, machinability and also advances application and development.
In general, functional high-polymer composite material the functional applications such as electricity, thermal and magnetic and electromagnetic shielding more
Extensively.Most functional high-polymer composite material is all applied in rough contact surface and can be tieed up in complex deformation
Hold the field of performance.Therefore, the research of flexibility function polymer composite extremely attracts attention, this kind of composite material can paste
Skin and complex surface are closed, and can keep functional constant under certain deformation quantity, is good functional substitution material
Material.
However, general flexibility function polymer composite can significantly lose function in the case where deflection is excessive
Property, it loses original performance and integral device is caused to fail.It is made for example, there is researcher that silver nanowires solution is coated on polyurethane
For this functional composite material, this functional composite material is accessed into voltage, and be stretched under certain deflection, circuit
In light bulb do not work, and heat make its stretch under deformation-recovery when, light bulb can brighten again.The researcher has found this existing
As, and propose the potential application foreground that can be used as switch.But the preparation method of this functional composite material is complicated,
The mechanical strength of coat is low, and poor repeatability and matrix polyurethane also have shortcomings, after strongly limiting this kind of material
Continuous development and application.
The memory function of polyurethane shape memory material derives from the combination of hard section and soft segment, and stationary phase and reply are all mutually
The disadvantages of being made of the physical crosslinking of hard soft segment point, being inevitably present poor restoring force, easy permanent deformation.
The patent specification of Publication No. CN106589738A discloses a kind of quick selfreparing shape memory high molecule material
Material, is prepared by the way of simple blend, is composed of the following raw materials by weight: anti-form-1,2~4 parts of 4- polyisoprene rubber,
3~5 parts of petroleum ether, 1~5 part of surfactant, 0.1~0.5 part of n-butanol, 1~3 part of acetic acid, 0.1~1.5 part of odium stearate,
20~60 parts of polynorbornene, 20~30 parts of styrene-butadiene block copolymer, 10~15 parts of polycaprolactone, polyethylene wax
10~30 parts, 0.1~1 part of 2,5- dimethyl -2,5- bis(t-butylperoxy) hexane, 0.5~3.5 part of maleic anhydride, silane
1~5 part of coupling agent KH-602,0.4~1.0 part of zinc oxide, 4~10 parts of silicon oxynitride, 0.4~0.6 part of epoxidized soybean oil.
It develops that a kind of preparation method is simple, restoring force is big, deformation is controllable and repeated high functional shape memory is compound
Material has development prospect and application potential very much.
Summary of the invention
For shortcoming existing for this field, the present invention provides a kind of preparations of functional shape memory composite material
Method first pre-processes functional modification agent, then faster and better will be pretreated in the way of solution blending
Functional modification agent is added to inside high molecular material, micro-, nanometer degree Shangdi mixing is realized, by the ratio for controlling crosslinking agent
Example can be designed that the functional shape memory composite material of different response temperature.The preparation method raw material is easy to get, operates letter
Single, controllability is good, it can be achieved that good strain-function control relationship.
A kind of preparation method of functional shape memory composite material, comprising:
(1) after functional modification agent, dodecyl sodium sulfate and soluble zinc salt being added to the water ultrasound, alkali is added
And hydrazine, oil bath reaction, vacuum drying obtains ternary functional modification agent after the black dispersion liquid of formation is centrifuged, is washed；
The ratio between described functional modification agent, dodecyl sodium sulfate, soluble zinc salt and mass parts of hydrazine are as follows:
(2) hypocrystalline Cross-linkable macromolecule, solvent, the agent of ternary functional modification and crosslinking agent are mixed, heated,
It places after stirring and drying and vulcanizes in a mold, obtain functional shape memory composite material；
The hypocrystalline Cross-linkable macromolecule, solvent, the agent of ternary functional modification and crosslinking agent mass parts it
Than are as follows:
In step (1), it is preferable that functional modification agent, dodecyl sodium sulfate, soluble zinc salt and the hydrazine
The ratio between mass parts are as follows:
The functional modification agent provides functionality, and different functional modification agent may be selected according to required function.Institute
The functional modification agent stated can be the conductive material of conductive energy, such as graphene nanometer sheet, graphene or carbon nanotube
Equal carbon materials.
The Long carbon chain of dodecyl sodium sulfate can be combined with carbon material surface by intermolecular interaction, carbon material table
Face forms negative electrical charge field, and zinc ion is formed in situ zinc oxide under negative electrical charge field action and is supported on carbon material surface.Zinc oxide is negative
The functional modification agent of load can be stabilized due to the pi-conjugated phenomenon of p-, and can serve as a part of cross linker system, with
Crosslinking agent is used cooperatively can disperse more evenly in Polymer Systems.Simultaneously as p- π interacts, ternary functionalization changes
Property agent will not occur physics sliding, the matching effect of good function-strain may be implemented.
Preferably, the soluble zinc salt can be zinc chloride, zinc sulfate etc..
Preferably, the time of the ultrasound is 0.1~5h, mainly plays peptizaiton.
The main function of the alkali is to provide hydroxide ion and the zinc ion reaction of soluble zinc salt generates Zn
(OH)4 2-Then Zinc oxide particles can be generated under thermal and hydric environment in particle.The alkali can be sodium hydroxide, potassium hydroxide
Deng.
Preferably, the mass ratio of the alkali and soluble zinc salt is 0.5~2.
The main of the hydrazine plays reduction stabilization.Preferably, the water content of the hydrazine is 20%~60%.
Preferably, the temperature of oil bath reaction is 60~140 DEG C, and the time is 12~48h.Temperature crosses low reaction mistake
Slowly, the excessively high reaction of temperature is too fast not easy to control.Time interval is the growth section of Zinc oxide particles, time too short zinc oxide growth
Not perfect, overlong time Zinc oxide particles overgrowth is not easy subsequent scatter operation.
Preferably, in step (2), first progress ultrasound is pre-dispersed in a solvent for the ternary functional modification agent, and pre- point
The scattered time is 1~100min, and obtained solution is known as ternary functional modification agent pre-dispersed liquid.It is pre-dispersed to be conducive to raising three
The dispersion degree of meta function modifying agent improves modified effect.
The hypocrystalline Cross-linkable macromolecule is matrix, plays the role of fixed material deformation, is under uncrosslinked
Existing plastic nature, heating and softening stretchable but deformation can not reply, and the material after cross-linker moiety is crosslinked, which exists, to be provided back
The cross-linked network of complex phase and the crystal region of offer stationary phase, can control the melting of crystal region, cooling by heating
Living again for crystal region is realized, to obtain the effect of shape memory.More than the fusing point of crystal region, material softening only exists crosslinking
Network, shows the property of elastomer, stretchable, deformable, can reply.Crystal region fusing point hereinafter, material shows
The some properties of plastics have higher modulus, occur surrendering under cold stretch and constriction.The shape memory effect of material can pass through
Be heated to fusing point or more, be deformed into the shape of needs and then be cooled to crystallization temperature hereinafter, fixed shape, be again heated to fusing point with
On, original shape can be returned back to.
The hypocrystalline Cross-linkable macromolecule of commercialization can be selected in the hypocrystalline Cross-linkable macromolecule, including anti-
Formula -1,4- polyisoprene and ethylene octene copolymer etc..
The solvent can be selected from there are commonly solvents, such as toluene, dimethylbenzene or hexamethylene.
The crosslinking agent auxiliary hypocrystalline Cross-linkable macromolecule realizes shape memory effect, including vulcanizing agent and promotion
Agent.The effect of vulcanizing agent is crosslinking points to be formed on the high molecular strand of hypocrystalline Cross-linkable, and then form cross-linked network,
Return action in shape-memory properties is provided.The effect of promotor is to shorten vulcanization time, reduces vulcanizing agent dosage, reduces sulphur
Change temperature and anti-incipient scorch.
Preferably, the mass ratio of the vulcanizing agent and promotor is (0.5~2): 1.
The vulcanizing agent includes one of sulphur or peroxide or a variety of, and the peroxide can be peroxide
Change diisopropylbenzene (DIPB) etc..
The promotor includes one of sulfenamide substance or thiazole substance or a variety of.Preferably, described
Promotor be N- cyclohexyl-one or both of 2-[4-morpholinodithio sulfenamide or 2-mercaptobenzothiazole.
Preferably, the temperature of the heating is 40~100 DEG C, and the speed of stirring is 100~400rpm, the time of stirring
For 1~5h.The temperature too low macromolecule dissolution time is too short, and temperature too Gao Zehui crosslinks mixed process.Mixing speed is low
Mix that uneven mixing speed is excessively high to be unfavorable for experimental implementation.The too short mixing of mixing time is uneven, and overlong time is unfavorable for reality
The continuous operation tested.
Preferably, the temperature of the drying is 40~100 DEG C, and the time is 2~5 days.
The mold can be various shape, remember composite wood to prepare the functional shape of different shape and pattern
Material.
Preferably, the temperature of the vulcanization is 140~180 DEG C, and the time is 5~50min, and pressure is 5~15MPa.Sulphur
It is too low to change temperature, cannot vulcanize, temperature is excessively high, and overcuring can make crosslink material network impaired, time interval and vulcanization temperature
Spend corresponding, the vulcanization effect of the too low then material of sulfide stress is poor, performance is poor, and sulfide stress is excessively high, may make material internal
The excessive generation defect of internal stress.
The preparation method for the functional shape memory composite material that invention further provides a kind of according to is prepared
Functional shape memory composite material, restoring force is big, repeatability is strong, mechanical property is good, stability is high, stretchable, flexible,
Cope with rough surface and complex deformation situation.
Preferably, in the functional shape memory composite material, in terms of raw material, hypocrystalline Cross-linkable macromolecule,
The ratio between the agent of ternary functional modification and the mass parts of crosslinking agent are as follows:
100 parts of hypocrystalline Cross-linkable macromolecule,
0.02~0.01 part of ternary functional modification agent,
1~5 part of crosslinking agent.
The fixation in certain deformation quantity may be implemented in the functional shape memory composite material, therefore function may be implemented
Change the fixation that modifying agent is distributed in deformed state, mechanism is, the melting temperature of functional shape memory composite material or molten
Point (Tm1) is known as shape memory transition temperature.More than fusing point, the crystal region inside functional shape memory composite material is molten
Melt, in a stretched state, functional modification agent can redistribute down in the different degrees of of stretching, lead to functional modification
The distance between agent extends, and functionality weakens, and is subsequently cooled to crystallization temperature (Tm2) hereinafter, the shape that functional modification agent disperses
State is fixed, and the effect that functionality weakens can be fixed up.Functional shape memory composite wood is risen in environment temperature
When melting temperature (Tm1) of material, the state of functional modification agent dispersion can reconnect again, and functional meeting again originally is real
It is existing, illustrate functional memory effect.
Application the present invention also provides the functional shape memory composite material described in one kind in switching material field.
Compared with prior art, the present invention major advantage includes:
(1) functional modification agent is handled by dodecyl sodium sulfate and zinc oxide loads, and passes through intermolecular interaction
Conductivity is effectively increased with the pi-conjugated effect of p-, and good strain-function control relationship may be implemented, technique is unique, thinking
Innovation, process is simple, and effect is obvious.
(2) controlled shape of functional shape memory composite material, properties of product are stablized, and the subsequent development of product is conducive to
And application.
(3) the hypocrystalline Cross-linkable macromolecule used can be by crosslinking agent adjustable shape memory transition temperature, can also
The hypocrystalline Cross-linkable macromolecule of different Applicable temperatures is selected, regulation is simple, and temperature-responsive section is controllable.
(4) the functional shape memory composite material described in can be adjusted by adjusting degree of strain come regulatory function
Mode is simple, and response speed is quick, and repeatability is high, and stability is good.
Functional shape memory composite material preparation method of the invention is simple, and stability of material is strong, controlled shape, raw material
Source is simple, and operation is easy, and the mixability of material is high, and deformation controllability is strong, has very strong application potential as switching material,
It is suitble to large-scale production and application, there is good commercial application value.
Detailed description of the invention
Fig. 1 is the conductivity of the functional shape memory composite material of embodiment 2~5 and the sample of comparative example 1~5
Figure；
Fig. 2 is application in kind photo of the functional shape memory composite material of embodiment 3 in switching material field.
Specific embodiment
With reference to the accompanying drawing and specific embodiment, the present invention is further explained.It should be understood that these embodiments are merely to illustrate
The present invention rather than limit the scope of the invention.In the following examples, the experimental methods for specific conditions are not specified, usually according to
Normal condition, or according to the normal condition proposed by manufacturer.
The conductivity test of functional shape memory composite material uses comprehensive physical testing system, and principle is in sample
Product surface connects electrode and accesses circuit, by testing electric current and voltage that it passes through and by having surveyed measured dimension data meter
Calculation obtains conductivity, and specific test process includes:
(1) functional shape memory composite material is cut into the sample of 4mm × 2mm at room temperature.
(2) conductive silver paste is coated in sample surfaces and connect four platinum electrodes, then the dry 2h in 100 DEG C of baking oven
To allow the solvent of conductive silver paste to volatilize completely, the sample for connecting electrode is taken out after dry, is cooled to room temperature.
(3) four platinum electrodes of sample are placed in tested sample sample platform and are attempted by tested electrode.Access electricity
Road simultaneously inputs 20V voltage, obtains conductivity data.
For being not added with the sample of the agent of ternary functional modification or functional modification agent, it is tested using high insulating-resistance meter
Conductivity, specific mode of operation be by the material for being not added with ternary functional modification agent cut at room temperature 100mm ×
Then the sample of 100mm is put at room temperature in the test box of high insulating-resistance meter, input voltage simultaneously adjusts resistance range and obtains
Most conductivityσ (unit S/m) is calculated through formula (1) afterwards in resistance value size:
Wherein, t is that (unit m), R are the shown resistance value (unit Ω) of test to thickness of sample.
The recovery of shape ratio and fixed ratio of functional shape memory composite material are used with the omnipotent of temperature control box function
The test of electronic test machine is stretched, specific testing procedure includes:
(1) at room temperature, functional shape memory composite material is cut into the sample that length and width are 15mm × 60mm, then will
The both ends of sample are fixed on the universal tensile electronic test machine equipped with temperature-controlled box, and original length is labeled as l0。
(2) temperature in temperature-controlled box is risen to 100 DEG C and keeps 2min, then drawn with the strain variation speed of 10%/min
100% is extended to, the temperature in temperature-controlled box is then cooled to 0 DEG C, keeps 10min, records the length of sample and labeled as l1。
(3) temperature in temperature-controlled box is risen to 100 DEG C again, keeps the temperature 10min, replys original shape, record completely to it
The length of material is simultaneously labeled as l2。
Respectively according to formula (2), the recovery of shape ratio and fixed ratio of (3) computing functionality composite material of shape memory:
Embodiment 1
Prepare zinc oxide/dodecyl sodium sulfate/carbon nanometer pipe ternary functional modification agent.
The sodium dodecyl sulfate aqueous solution of 0.05mol/L is mixed with carbon nanotube and ultrasound 2h adds after the completion of ultrasonic
Enter the solder(ing)acid of 0.3mol/L, continue ultrasound 3h, the sodium hydrate aqueous solution of 0.2mol/L is then added, is eventually adding
The aqueous hydrazine that water content is 50% reacts for 24 hours in 100 DEG C of oil baths, the black dispersion liquid of formation, be centrifugated and spend from
Vacuum drying obtains zinc oxide/dodecyl sodium sulfate/carbon nanometer pipe ternary functional modification after sub- water and ethyl alcohol alternately wash
Agent.
Between carbon nanotube, dodecyl sodium sulfate, zinc chloride, sodium hydroxide and hydrazine in above-mentioned preparation process
Mass ratio are as follows:
Embodiment 2
Use zinc oxide/dodecyl sodium sulfate/carbon nanotube of embodiment 1 as ternary functional modification agent.
Weigh the trans-1,4-iroprene polymer TPI-301 (abbreviation TPI) of 100 mass parts and the ternary of 0.002 mass parts
Functional modification agent.First by the agent of ternary functional modification in 800 mass parts toluene ultrasound 1h, it is then mixed with TPI and crosslinking agent
Conjunction is added in three-necked flask, heating stirring 2.5h, mixing speed 250rpm in 60 DEG C of oil baths.Then stirring is completed
Mixture is poured into culture dish and is dried 3 days in 100 DEG C of thermal station, and 100mm × 100mm × 1mm is placed on after the completion of dry
Vulcanized 20min under 160 DEG C and 12MPa of pressure in mold and on vulcanizing press, finally obtain 100mm × 100mm ×
The functional shape memory composite material of 1mm.
The transition temperature of resulting functional shape memory composite material be 50~70 DEG C, recovery of shape ratio be 96%~
98%, fixed ratio is 94%~96%, and the conductivity of material is 6.88 × 10-4S/m。
Embodiment 3
Difference with embodiment 2 is only that the ternary functional modification agent for weighing 0.005 mass parts, remaining step is homogeneous
Together, the transition temperature of the functional shape memory composite material obtained is 50~70 DEG C, and recovery of shape ratio is 95%~98%,
Fixed ratio is 95%~97%, and the conductivity of material is 0.61S/m.
Embodiment 4
Difference with embodiment 2 is only that the ternary functional modification agent for weighing 0.008 mass parts, remaining step is homogeneous
Together, the transition temperature of the functional shape memory composite material obtained is 50~70 DEG C, and recovery of shape ratio is 94%~96%,
Fixed ratio is 96%~98%, and the conductivity of material is 3.55S/m.
Embodiment 5
Difference with embodiment 2 is only that the ternary functional modification agent for weighing 0.01 mass parts, remaining step is all the same,
The transition temperature of obtained functional shape memory composite material is 50~70 DEG C, and recovery of shape ratio is 93%~95%, Gu
Fixed-ratio is 97%~99%, and the conductivity of material is 8.54S/m.
Comparative example 1
Difference with embodiment 2, which is only that, is added without ternary functional modification agent, remaining step is all the same, obtained sample
Transition temperature be 50~70 DEG C, recovery of shape ratio be 98%~100%, fixed ratio be 93%~95%, the electricity of material
Conductance is 1.67 × 10-14S/m。
Comparative example 2
Difference with embodiment 2 is only that zinc oxide/dodecyl sodium sulfate carbon nanometer before modified using embodiment 1
Pipe substitutes the agent of ternary functional modification, and the transition temperature of obtained sample is 50~70 DEG C, and recovery of shape ratio is 95%~
97%, fixed ratio is 94%~96%, and the conductivity of material is 3.30 × 10-7S/m。
Comparative example 3
Difference with embodiment 3 is only that zinc oxide/dodecyl sodium sulfate carbon nanometer before modified using embodiment 1
Pipe substitutes the agent of ternary functional modification, and the transition temperature of obtained sample is 50~70 DEG C, and recovery of shape ratio is 93%~
96%, fixed ratio is 94%~96%, and the conductivity of material is 3.30 × 10-3S/m。
Comparative example 4
Difference with embodiment 4 is only that zinc oxide/dodecyl sodium sulfate carbon nanometer before modified using embodiment 1
Pipe substitutes the agent of ternary functional modification, and the transition temperature of obtained sample is 50~70 DEG C, and recovery of shape ratio is 90%~
95%, fixed ratio is 94%~96%, and the conductivity of material is 2.40 × 10-2S/m。
Comparative example 5
Difference with embodiment 5 is only that zinc oxide/dodecyl sodium sulfate carbon nanometer before modified using embodiment 1
Pipe substitutes the agent of ternary functional modification, and the transition temperature of obtained sample is 50~70 DEG C, and recovery of shape ratio is 88%~
93%, fixed ratio is 94%~96%, and the conductivity of material is 0.34S/m.
Conductivity such as Fig. 1 institute of the sample of the functional shape memory composite material and comparative example 1~5 of embodiment 2~5
Show.
The deformation of test case functional shape memory composite material and functional relationship test
At room temperature, the functional shape memory composite material of embodiment 3 is cut into several length and width is 15mm × 60mm
Sample, the both ends of sample are fixed on the universal tensile electronic test machine equipped with temperature-controlled box.By the temperature liter in temperature-controlled box
To 100 DEG C and 2min is kept, 100% and 200% are then stretched to respectively with the strain variation speed of 10%/min.It then will control
Temperature in incubator is cooled to 0 DEG C, keeps 10min.Take out sample, testing conductivity.The results show that 100% is stretched, conductivity
It is 5.38 × 10-4S/m；200% is stretched, conductivity is 7.89 × 10-7S/m。
Application of the application examples functional shape memory composite material in switching material field
At room temperature, the functional shape memory composite material of embodiment 3 is cut into several length and width is 15mm × 60mm
Sample, the both ends of sample are fixed on the universal tensile electronic test machine equipped with temperature-controlled box.By the temperature liter in temperature-controlled box
To 100 DEG C and 2min is kept, is then stretched to 0%, 100% and 200% respectively with the strain variation speed of 10%/min.
The both ends of sample are applied and are covered with conductive silver paste, and connect copper foil, then a dry star in the baking oven at 40 DEG C
Phase is to allow the solvent in conductive silver paste to volatilize completely.
It turns on the electricity in the way of Fig. 2 a, power supply is DC power supply 6V.It turns on the power switch, record different stretch deformation
The light on and off situation of light bulb in lower circuit.
As a result as shown in Fig. 2 b~2g, 0% is stretched, light bulb is bright；100% is stretched, light bulb goes out；200% is stretched, light bulb goes out.
In addition, it should also be understood that, those skilled in the art can be to this hair after having read foregoing description content of the invention
Bright to make various changes or modifications, these equivalent forms also fall within the scope of the appended claims of the present application.
Claims (10)
1. a kind of preparation method of functional shape memory composite material, comprising:
(1) after functional modification agent, dodecyl sodium sulfate and soluble zinc salt being added to the water ultrasound, alkali and connection are added
Ammonia, oil bath reaction, vacuum drying obtains ternary functional modification agent after the black dispersion liquid of formation is centrifuged, is washed；
The ratio between described functional modification agent, dodecyl sodium sulfate, soluble zinc salt and mass parts of hydrazine are as follows:
The functional modification agent is conductive material；
(2) hypocrystalline Cross-linkable macromolecule, solvent, the agent of ternary functional modification and crosslinking agent mixed, heated, stirred
Vulcanize in a mold with being placed after drying, obtains functional shape memory composite material；
The ratio between described hypocrystalline Cross-linkable macromolecule, solvent, the agent of ternary functional modification and mass parts of crosslinking agent are as follows:
2. the preparation method of functional shape memory composite material according to claim 1, which is characterized in that the function
The ratio between the mass parts of modifying agent, dodecyl sodium sulfate, soluble zinc salt and hydrazine can be changed are as follows:
3. the preparation method of functional shape memory composite material according to claim 1, which is characterized in that the alkali
Mass ratio with soluble zinc salt is 0.5~2.
4. the preparation method of functional shape memory composite material according to claim 1, which is characterized in that the oil
The temperature of bath reaction is 60~140 DEG C, and the time is 12~48h.
5. the preparation method of functional shape memory composite material according to claim 1, which is characterized in that described half
Crystallizing Cross-linkable macromolecule is trans-1,4-iroprene polymer or ethylene octene copolymer.
6. the preparation method of functional shape memory composite material according to claim 1, which is characterized in that the friendship
Connection agent includes vulcanizing agent and promotor, and vulcanizing agent includes one of sulphur or peroxide or a variety of, and promotor includes time sulphur
One of amide substance or thiazole substance are a variety of.
7. the preparation method of functional shape memory composite material according to claim 1, which is characterized in that step (2)
In, the temperature of the heating is 40~100 DEG C, and the time of stirring is 1~5h.
8. the preparation method of functional shape memory composite material according to claim 1, which is characterized in that the sulphur
The temperature of change is 140~180 DEG C, and the time is 5~50min, and pressure is 5~15MPa.
9. the preparation method preparation of functional shape memory composite material described in any claim according to claim 1~8
Obtained functional shape memory composite material, which is characterized in that in the functional shape memory composite material, with raw material
Meter, the ratio between hypocrystalline Cross-linkable macromolecule, the agent of ternary functional modification and mass parts of crosslinking agent are as follows:
100 parts of hypocrystalline Cross-linkable macromolecule,
0.02~0.01 part of ternary functional modification agent,
1~5 part of crosslinking agent.
10. a kind of functional shape memory composite material according to claim 9 is in the application in switching material field.
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