CN107841694A - Controllable liquid metal complex fiber material of a kind of rigidity and preparation method thereof - Google Patents
Controllable liquid metal complex fiber material of a kind of rigidity and preparation method thereof Download PDFInfo
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- CN107841694A CN107841694A CN201711039460.5A CN201711039460A CN107841694A CN 107841694 A CN107841694 A CN 107841694A CN 201711039460 A CN201711039460 A CN 201711039460A CN 107841694 A CN107841694 A CN 107841694A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/02—Alloys containing metallic or non-metallic fibres or filaments characterised by the matrix material
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/14—Alloys containing metallic or non-metallic fibres or filaments characterised by the fibres or filaments
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Abstract
A kind of controllable liquid metal complex fiber material of rigidity, including liquid metal, magnetic-particle and fiber is distributed with liquid metal, when applying without magnetic field, material keeps liquid, has good fluidity；When applying external magnetic field, magnetic-particle is arranged along magnetic induction line direction ordered arrangement, fiber under the constraint of magnetic-particle ordered arrangement along specific direction so that can be played when being acted on by external force as support and be maintained constitutionally stable effect；When removing externally-applied magnetic field, magnetic-particle distribution at random again, fiber returns to no restrained condition, and material comes back to flexible state, and present invention also offers the preparation method of the material.Structure of the invention by simulating blade in nature, fiber is added in the liquid metal for be mixed with magnetic-particle, pass through being distributed to realize that the rigidity of material regulates and controls for magnetic field regulation and control fiber, response quickly, control is accurate, simple operation, can apply in the multiple fields such as flexible robot and ectoskeleton.
Description
Technical field
The invention belongs to liquid metal composite fibre technology field, the controllable liquid metal of more particularly to a kind of rigidity is compound
Fibrous material and preparation method thereof.
Background technology
How easily and efficiently material intellectuality is the property of the important development direction of present material science, controlled material
The functional requirement for enabling adaptation in different occasions is one of urgent problem to be solved.Rigidity controllability material can be according to people
Demand between rigid support and compliant motion free switching, device space and weight can be greatlyd save, and realize more
Outstanding performance
The controllable material main component of existing rigidity is organic matter, need to could be realized under outfield (being mostly electric field) effect
The regulation and control of rigidity.Mechanics, the electrical properties opposing metallic material of this material are poor, and the condition rigidly regulated and controled is to environmental requirement
It is higher, and fast and convenient invertibity regulation and control difficult to realize.
The content of the invention
The shortcomings that in order to overcome above-mentioned prior art, it is an object of the invention to provide a kind of controllable liquid metal of rigidity
Complex fiber material and preparation method thereof, by simulating the structure of blade in nature, it is being mixed with the liquid metal of magnetic-particle
Middle addition special fiber material, the distribution of fiber in liquid metal is regulated and controled to realize that the rigidity of material in itself is adjusted by magnetic field
Control.Answered using the liquid metal that the manufacture method can produce quick response, control is accurate and the rigidity of simple operation is controllable
Condensating fiber material.
To achieve these goals, the technical solution adopted by the present invention is：
A kind of controllable liquid metal complex fiber material of rigidity, including liquid metal, it is distributed in liquid metal and is magnetic
Particle and fiber, when applying without magnetic field, material keeps liquid, has good fluidity, and now the material can be considered completely soft
Property；When applying external magnetic field, the magnetic-particle is arranged in order along magnetic induction line direction ordered arrangement, the fiber in magnetic-particle
It can also be arranged under the constraint of cloth along specific direction so that can be played when being acted on by external force as support and remain constitutionally stable
Effect, regulating and controlling effect can be played to fiber distribution now using different magnetic field parameters (such as intensity, distribution), so that
The material shows different rigidity；When removing externally-applied magnetic field, magnetic-particle distribution at random again, the fiber also returns
Flexible state is come back to without restrained condition, material.
The liquid metal can be the low of other components such as mercury, bismuth, gallium-indium-tin alloy, bismuth indium stannum alloy or gallium-indium alloy
Melting point metals, the fiber are elongate, threadlike structure, and the magnetic-particle refers to the magnetic microparticle of tool.
The gallium-indium alloy is preferably eutectic gallium-indium alloy, by gallium and 24.5% indium group of the mass fraction for 75.5%
Into.
The fiber is carbon fiber bundle, terylene (pet fiber), acrylic fibers (polyacrylonitrile fibre)
Or the organic fiber of the other kinds of parameter similar such as nylon (Fypro), the carbon fiber bundle is by 1000~5000 lists
Root diameter is about that 7 microns of carbon fiber wire is polymerized, and diameter is about 0.01~0.6 millimeter, and length can be adjusted voluntarily.
The magnetic-particle can be the nano particle that iron, cobalt, nickel and its alloy etc. have magnetisable material, particle diameter is 10~
2000 nanometers.
Heretofore described fiber refers to elongated filiform, generally carbon fiber bundle, single by 1000~5000
Diameter is about that 7 microns of carbon fiber wire is polymerized, and diameter is about 0.01~0.6 millimeter, and length can be adjusted voluntarily.
The mass fraction of liquid metal described in material is 75~80%, and the mass fraction of magnetic-particle is 15~25%,
The heretofore described magnetic field design parameter for being used for rigidity regulation and control can be adjusted according to the actual requirements, in general,
Magnetic field intensity is bigger, and the rigidity of the material is higher, and the heterogeneous spatial distribution of this external magnetic field also has to the rigidity of material necessarily to be carried
Height effect.
Present invention also offers the preparation method of the controllable liquid metal complex fiber material of the rigidity, including following step
Suddenly：
1) appropriate magnetic-particle is placed in liquid metal, adds hydrochloric acid, be stirred well to well mixed, use deionized water
Rinse out the unnecessary magnetic-particle and hydrochloric acid of mixture surface attachment；
2) appropriate fiber is uniformly blended into the liquid metal for being mixed with magnetic-particle obtained in previous step, appropriate stirring order is fine
Dimension is uniformly distributed.
The mass fraction of the hydrochloric acid is 5%, and the volume ratio of hydrochloric acid and liquid metal is 20：1, the composite wood of final gained
It is not hydrochloric in material.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, the present invention uses magnetic field as stiffness reliability means, compared with means such as traditional automatically controlled, temperature controls, has response speed
The advantages of hurry up, be easy to operate, for it, lossless application provides possibility in vivo.
2nd, the material stiffness controlled range in the present invention is big, and rigidity can be traditional from 0 regulation to close to traditional metal materials
The scope of material regulation and control is often limited only to the category of macromolecule organic.
3rd, the material in the present invention has the metallines such as excellent electric conductivity, thermal conductivity, and traditional material predominantly has
Machine thing, electric conductivity, thermal conductivity are poor.
4th, the rigidity regulation and control of material are reversible in the present invention, and need to only remove magnetic field can recover flexible, and traditional material
Material is mostly irreversible, can not recover flexible again.
Brief description of the drawings
Fig. 1 is distribution schematic diagram inside the controllable liquid metal complex fiber material of rigidity of the present invention.
Fig. 2 is to apply behind magnetic field distribution schematic diagram inside the controllable liquid metal complex fiber material of rigidity.
Fig. 3 is application schematic diagram of the controllable liquid metal complex fiber material of rigidity of the present invention in flexible robot.
Embodiment
The present invention is further described with specific embodiment below in conjunction with the accompanying drawings.It should be pointed out that led for this technology
For the those of ordinary skill in domain, on the premise of the technology of the present invention principle is departed from, some improvement and replacement can also be made, this
A little improvement and replacement also should be regarded as protection scope of the present invention.
With reference to figure 1, the controllable liquid metal complex fiber material of heretofore described rigidity, mainly by liquid metal 1,
Fiber 2 and magnetic-particle 3 are formed.
With reference to figure 2, specific steps that the rigidity of the liquid metal complex fiber material controllable to this kind of rigidity is regulated and controled
It is as follows：
1st, when applying without magnetic field, the material keeps liquid, has good mobility, now the material can be considered complete
It is flexible.
2nd, when applying external magnetic field 4, magnetic-particle 3 in liquid metal 1 can be along magnetic direction ordered arrangement, now liquid
Fiber 2 can also be arranged by the constraint of particle ordered arrangement along specific direction in state metal, can be made when being acted on by external force
Played for support and maintain constitutionally stable effect.Can be to fibre now using different magnetic field parameters (such as intensity, distribution)
Regulating and controlling effect is played in dimension distribution, so that the material shows different rigidity.
3rd, when removing externally-applied magnetic field, magnetic-particle distribution at random again, fiber are also returned to without about pencil in liquid metal
State, material come back to flexible state.
It is the concrete application example of material of the present invention below.
Embodiment 1：
Application of the controllable liquid metal complex fiber material of rigidity in flexible robot:
Heretofore described material can be as the raw material of the actuator of flexible robot.As shown in figure 3, the flexibility
Principal organ of robot is robot controlling section 11 and the flexible arm 12 made of heretofore described material, without additional magnetic
In the case of, the material embodies flexibility, and robot can freely change shape according to environment, and being fitted in across obstacle 13 needs
On the object 14 to be captured.When applying a magnetic field, the material stiffness uprises, and can grasp object, and object is operated.
Specific schematic diagram is shown in Fig. 3.This material can help to reduce the space of flexible robot, can also expand flexible robot's
Application field..
Embodiment 2：
Application of the controllable liquid metal complex fiber material of rigidity in wearable ectoskeleton:
Heretofore described material can be as the raw material of wearable ectoskeleton., should in the case of without externally-applied magnetic field
Material embodies flexibility, and ectoskeleton can be fitted tightly on the wearing person, and does not influence its normal activity.When applying a magnetic field, should
The rigidity of material improves, and can play local supporting function to wearing people, help its completion task.Magnetic is removed after the completion of task
, material recovers flexible, does not influence to dress the normal life of people.Not only comfort level greatly improves this wearable ectoskeleton, also
The body curvature of wearing people can be preferably bonded, realizes more preferable supporting function.
Claims (9)
1. the controllable liquid metal complex fiber material of a kind of rigidity, it is characterised in that including liquid metal, divide in liquid metal
Magnetic-particle and fiber are furnished with, when applying without magnetic field, material keeps liquid, has good fluidity；Applying external magnetic field
When, the magnetic-particle is specific in the constraint lower edge of magnetic-particle ordered arrangement along magnetic induction line direction ordered arrangement, the fiber
Arrange in direction so that can be played when being acted on by external force as support and maintain constitutionally stable effect；When removing externally-applied magnetic field
When, magnetic-particle distribution at random again, the fiber returns to no restrained condition, and material comes back to flexible state.
2. the controllable liquid metal complex fiber material of rigidity according to claim 1, it is characterised in that the liquid metal
For mercury, bismuth, gallium-indium-tin alloy, bismuth indium stannum alloy or gallium-indium alloy, the fiber is elongate, threadlike structure, and the magnetic-particle refers to
Has magnetic microparticle.
3. the controllable liquid metal complex fiber material of rigidity according to claim 2, it is characterised in that the gallium-indium alloy
For eutectic gallium-indium alloy, the fiber is carbon fiber bundle, terylene, acrylic fibers or nylon, the magnetic-particle be iron, cobalt, nickel and its
The nano particle of alloy.
4. the controllable liquid metal complex fiber material of rigidity according to claim 3, it is characterised in that the eutectic gallium indium
Alloy is made up of mass fraction for 75.5% gallium and 24.5% indium；The carbon fiber bundle is by 1000~5000 single diameters
About 7 microns of carbon fiber wire is polymerized, 0.01~0.6 millimeter of diameter, adjustable length；The particle diameter of the nano particle is 10
~2000 nanometers.
5. the controllable liquid metal complex fiber material of rigidity according to claim 1, it is characterised in that liquid described in material
The mass fraction of state metal is 75~80%, and the mass fraction of magnetic-particle is 15~25%, and the fraction of fiber is 1~5%.
6. the controllable liquid metal complex fiber material of rigidity according to claim 1, it is characterised in that be used for by regulation
The magnetic field design parameter of rigidity regulation and control, to adjust material stiffness, magnetic field intensity is bigger, and the rigidity of material is higher.
7. according to the controllable liquid metal complex fiber material of the rigidity of claim 1 or 6, it is characterised in that using uneven
The magnetic field of even spatial distribution, improve the rigidity of material.
8. the preparation method of the controllable liquid metal complex fiber material of rigidity described in claim 1, it is characterised in that including such as
Lower step：
1) appropriate magnetic-particle is placed in liquid metal, adds hydrochloric acid, be stirred well to well mixed, use deionized water rinsing
Fall hydrochloric acid and the unnecessary magnetic-particle of surface attachment；
2) appropriate fiber is uniformly blended into the liquid metal for being mixed with magnetic-particle obtained in previous step, appropriate stirring makes fiber equal
Even distribution.
9. the preparation method of the controllable liquid metal complex fiber material of rigidity according to claim 8, it is characterised in that institute
The mass fraction for stating hydrochloric acid is 5%, and the volume ratio of hydrochloric acid and liquid metal is 20：1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711039460.5A CN107841694B (en) | 2017-10-30 | 2017-10-30 | A kind of liquid metal complex fiber material and preparation method thereof that rigidity is controllable |
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| CN201711039460.5A CN107841694B (en) | 2017-10-30 | 2017-10-30 | A kind of liquid metal complex fiber material and preparation method thereof that rigidity is controllable |
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| CN107841694A true CN107841694A (en) | 2018-03-27 |
| CN107841694B CN107841694B (en) | 2019-02-22 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457079A (en) * | 2018-04-27 | 2018-08-28 | 中国科学院理化技术研究所 | A kind of liquid metal/carbon fibre composite and its preparation method and application |
| CN109894510A (en) * | 2019-03-28 | 2019-06-18 | 北京航空航天大学 | A kind of magnetic control 3-d deformable liquid metal machine |
| CN110861119A (en) * | 2019-12-02 | 2020-03-06 | 北京航空航天大学 | Polydimethylsiloxane/liquid metal composite material and preparation method and application thereof |
| CN111168503A (en) * | 2020-01-17 | 2020-05-19 | 三峡大学 | Polishing device with adjustable rigidity and using method |
| CN112957522A (en) * | 2021-02-22 | 2021-06-15 | 重庆大学 | Rigidity-adjustable porous liquid metal bone tissue engineering scaffold and preparation method thereof |
| CN113043288A (en) * | 2020-12-25 | 2021-06-29 | 天津大学 | Liquid metal-polymer composite soft driver and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110699585B (en) * | 2019-10-10 | 2021-03-02 | 清华大学 | Lightweight liquid metal composite material and preparation and application thereof |
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| CN104862621A (en) * | 2014-02-23 | 2015-08-26 | 刘建华 | Ultrasonic composite material manufacturing technology |
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| CN106868432A (en) * | 2016-12-05 | 2017-06-20 | 上海阿莱德实业股份有限公司 | It is provided with the gallium alloy heat sink material and its production technology of fiber reinforcement |
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| CN104862621A (en) * | 2014-02-23 | 2015-08-26 | 刘建华 | Ultrasonic composite material manufacturing technology |
| CN105798275A (en) * | 2016-03-16 | 2016-07-27 | 高诗白 | Electromagnetic induction heating metal liquid forming equipment and process |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457079A (en) * | 2018-04-27 | 2018-08-28 | 中国科学院理化技术研究所 | A kind of liquid metal/carbon fibre composite and its preparation method and application |
| CN108457079B (en) * | 2018-04-27 | 2021-04-02 | 中国科学院理化技术研究所 | Liquid metal/carbon fiber composite material and preparation method and application thereof |
| CN109894510A (en) * | 2019-03-28 | 2019-06-18 | 北京航空航天大学 | A kind of magnetic control 3-d deformable liquid metal machine |
| CN110861119A (en) * | 2019-12-02 | 2020-03-06 | 北京航空航天大学 | Polydimethylsiloxane/liquid metal composite material and preparation method and application thereof |
| CN111168503A (en) * | 2020-01-17 | 2020-05-19 | 三峡大学 | Polishing device with adjustable rigidity and using method |
| CN113043288A (en) * | 2020-12-25 | 2021-06-29 | 天津大学 | Liquid metal-polymer composite soft driver and preparation method thereof |
| CN112957522A (en) * | 2021-02-22 | 2021-06-15 | 重庆大学 | Rigidity-adjustable porous liquid metal bone tissue engineering scaffold and preparation method thereof |
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| CN107841694B (en) | 2019-02-22 |
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