CN110204904A - A kind of magnetic rheology elastic body, preparation method and application - Google Patents
A kind of magnetic rheology elastic body, preparation method and application Download PDFInfo
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- CN110204904A CN110204904A CN201910633013.5A CN201910633013A CN110204904A CN 110204904 A CN110204904 A CN 110204904A CN 201910633013 A CN201910633013 A CN 201910633013A CN 110204904 A CN110204904 A CN 110204904A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K2003/023—Silicon
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2206—Oxides; Hydroxides of metals of calcium, strontium or barium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/01—Magnetic additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
A kind of magnetic rheology elastic body of the invention, preparation method and application, the elastomer each component includes: 4~5 parts of 100~150 parts of rubber matrix, 600~700 parts of magnetic-particle, 16~25 parts of vulcanizing agent and promotor, 120~180 parts of fill material according to weight ratio, and wherein fill material includes 20~30 parts of plasticizer, 30~50 parts of dispersing agent, 50~60 parts of binder, 10~20 parts of reinforcing agent, 10~20 parts of cold-resistant agent.Each component of the invention cooperates and collaboration, so that the present invention not only increases interface binding intensity between magnetic-particle and matrix, and magnetic permeability is improved under the premise of guaranteeing saturation magnetization, reduces eddy-current loss.The component made of magnetorheological elastomer material of the present invention has good mechanical property when use, there is preferable damping and storage shear modulus.This function has positive effect in terms of vibration damping and Vibration Absorbing System Design, is suitable for promoting the use of.
Description
Technical field
The invention belongs to vibration damping and vibration isolation intellectual material technical fields, and in particular to a kind of magnetic rheology elastic body, preparation method
And application.
Background technique
As China's vehicle is using increasing, road surface caused by automobile, bridge floor vibration problem are got worse.Due to magnetic current
Become liquid material characteristic so that it is used widely in vibration damping field, but magnetorheological fluid there are easy particles settle, hydraulic seal hardly possible,
The disadvantages of stability is poor.Since magnetorheological elastomer material is keeping magnetorheological fluid and is being overcome the advantages of elastomer simultaneously above-mentioned
Disadvantage, magnetorheological elastomer material have more good application prospect.And the intellectual material that magnetic rheology elastic body is emerging as one kind,
There are no unified preparation method, existing some problems.Such as there are interfacial bond properties between magnetic-particle and matrix poor, room temperature
The problems such as lower damping capacity is not good enough, mechanical performance is poor causes magnetic rheology elastic body performance and practical engineering application obtained still
There is certain gap.
Summary of the invention
In order to solve the above technical problems, the object of the present invention is to provide a kind of magnetic rheology elastic body, preparation method and application,
It is cooperated and is cooperateed with by each component, so that magnetic rheology elastic body has preferable damping and storage shear modulus, such magnetic
Magnetorheological elastomer preparation process, improves interface binding intensity between magnetic-particle and matrix, both ensure that the mechanical property of material,
Magnetic effect is improved again.
The present invention provides a kind of magnetic rheology elastic body, which includes following components according to weight ratio: rubber matrix 100
~150 parts, 600~700 parts of magnetic-particle, 16~25 parts of vulcanizing agent, 4~5 parts of vulcanization accelerator, fill material 120~180
Part, wherein fill material includes 20~30 parts of plasticizer, 30~50 parts of dispersing agent, 50~60 parts of binder, reinforcing agent 10~20
Part, 10~20 parts of cold-resistant agent；The binder is one of silicon carbide, graphene, carbon nanotube or silica；Reinforcing agent
For fume colloidal silica.
In magnetic rheology elastic body of the invention, the rubber matrix chooses silicon rubber or natural rubber.
In magnetic rheology elastic body of the invention, the magnetic-particle selects micron order carbonyl iron dust and silicon-steel powder, the two
Ratio is 25:1, this magnetic-particle is selected to improve magnetic permeability under the premise of guaranteeing saturation magnetization, reduces eddy-current loss.
In magnetic rheology elastic body of the invention, the vulcanizing agent is selenium, tellurium, peroxide or sulphur；Promotor is alkali
Metal oxide.
In magnetic rheology elastic body of the invention, the plasticizer is dimethicone.
In magnetic rheology elastic body of the invention, the dispersing agent is methyl anyl alcohol or polyurethane；Cold-resistant agent is adipic acid
Ester.
The present invention also provides a kind of preparation methods of above-mentioned magnetic rheology elastic body, comprising the following steps:
Step 1: weighing by following component proportion: 100~150 parts of rubber matrix, 600~700 parts of magnetic-particle, vulcanizing agent
16~25 parts, 4~5 parts of vulcanization accelerator, 120~180 parts of fill material, wherein fill material include 20~30 parts of plasticizer,
30~50 parts of dispersing agent, 50~60 parts of binder, 10~20 parts of reinforcing agent, 10~20 parts of cold-resistant agent；
Step 2: silicone rubber matrix, magnetic-particle and all fill materials being put into rubber mixing machine, mechanical uniform stirring
20 minutes, then it is placed in deaeration in vacuum barrel at 80 DEG C, then be injected into cylindrical body aluminium-making mould；
Step 3: vulcanizing agent and vulcanization accelerator being poured into mold and vulcanize 20 minutes or so at 150 DEG C, at the same time
Applying magnetic induction intensity is that the magnetic field 0.4T prepares anisotropy magnetic rheology elastic body；
Step 4: finally testing its mechanical property using parallel plate rheometer.
Magnetic rheology elastic body of the invention is applied to sandwich style pavement structure or deck paving system, is applied to have vibration damping
With the other structures of vibration isolation function.
A kind of magnetic rheology elastic body of the invention, preparation method and application at least have the following beneficial effects:
Formula design of the invention is rationally, at low cost, preparation process is simple.Such magnetic rheology elastic body preparation process, mentions
High interface binding intensity between magnetic-particle and matrix, not only ensure that the mechanical property of material, but also improve magnetic effect.This elasticity
Body be applied to vibration damping, vibration isolation field Practical Project in have better effects.There is good damping, shearing elasticity mould when in use
Amount etc. requires, and reduces the loss of traffic engineering vibration-proof structure, is suitable for promoting.In addition this elastomer addition cold-resistant agent has good
Cold tolerance reduces body frost heaving cracking.
Detailed description of the invention
Fig. 1 storage shear modulus and magnetic field strength relational graph；
Fig. 2 storage shear modulus and frequency relation figure；
Fig. 3 fissipation factor and magnetic field strength relational graph.
Specific embodiment
Below with reference to embodiment the present invention will be further explained explanation.
Embodiment 1
A kind of magnetic rheology elastic body includes following component according to weight ratio: 100 parts of rubber matrix, 600 parts of magnetic-particle,
16 parts of vulcanizing agent and 4 parts of promotor, 20 parts of plasticizer, 30 parts of dispersing agent, 50 parts of binder, 10 parts of reinforcing agent, 10 parts of cold-resistant agent.
Wherein, rubber matrix chooses silicone rubber matrix, and magnetic-particle selects micron order carbonyl iron dust and silicon-steel powder, the two ratio
Example is 25:1.Vulcanizing agent is selenium, and vulcanization accelerator is calcium oxide；Plasticizer is dimethicone, and dispersing agent is methyl anyl alcohol, is glued
Knot agent is silicon carbide, and cold-resistant agent is adipate ester, and reinforcing agent is fume colloidal silica.
A kind of preparation method of above-mentioned magnetic rheology elastic body, comprising the following steps:
Step 1: by said components proportion weighing；
Step 2: silicone rubber matrix, magnetic-particle and all fill materials being put into rubber mixing machine, mechanical uniform stirring
20 minutes, then it is placed in deaeration in vacuum barrel at 80 DEG C, then be injected into cylindrical body aluminium-making mould；
Step 3: vulcanizing agent and vulcanization accelerator being poured into and wherein vulcanized 20 minutes or so at 150 DEG C, is applied at the same time
Adding magnetic induction intensity is that the magnetic field 0.4T prepares anisotropy magnetic rheology elastic body；
Step 4: finally testing its mechanical property using parallel plate rheometer.
A kind of above-mentioned magnetic rheology elastic body is applied to sandwich style pavement structure or deck paving system, in addition can also be applied to
Other structures with vibration damping Yu vibration isolation function.
Embodiment 2
A kind of magnetic rheology elastic body, each component include: 125 parts of rubber matrix, 650 parts of magnetic-particle, sulphur according to weight ratio
20 parts of agent and 4.5 parts of promotor, 25 parts of plasticizer, 40 parts of dispersing agent, 55 parts of binder, 15 parts of reinforcing agent, 15 parts of cold-resistant agent.
Wherein, rubber matrix chooses silicone rubber matrix, and magnetic-particle selects micron order carbonyl iron dust and silicon-steel powder, the two ratio
Example is 25:1.Vulcanizing agent is selenium, and vulcanization accelerator is magnesia；Plasticizer is dimethicone, and dispersing agent is polyurethane, bonding
Agent is graphene, and cold-resistant agent is adipate ester, reinforcing agent is fume colloidal silica.
A kind of above-mentioned magnetic rheology elastic body preparation method and application is same as Example 1.
Embodiment 3
A kind of magnetic rheology elastic body, each component include: 150 parts of rubber matrix, 700 parts of magnetic-particle, sulphur according to weight ratio
25 parts of agent and 5 parts of promotor, 30 parts of plasticizer, 50 parts of dispersing agent, 60 parts of binder, 20 parts of reinforcing agent, 20 parts of cold-resistant agent.
Wherein, rubber matrix chooses silicone rubber matrix, and magnetic-particle selects micron order carbonyl iron dust and silicon-steel powder, the two ratio
Example is 25:1.Vulcanizing agent is selenium, and vulcanization accelerator is calcium oxide；Plasticizer is dimethicone, and dispersing agent is methyl anyl alcohol, is glued
Knot agent is carbon nanotube, and cold-resistant agent is adipate ester, and reinforcing agent is fume colloidal silica.
A kind of above-mentioned magnetic rheology elastic body preparation method and application is same as Example 1.
It is 20mm, the cylindrical body magnetic rheology elastic body mold of a height of 4mm, not by diameter made from above-described embodiment 1~3
Its mechanical property is tested using parallel plate rheometer under the conditions of, as shown in Figs. 1-3.Fig. 1 is frequency 10Hz, 0.1% strain
Under, elastomer measures storage shear modulus changing tendency figure within the scope of 0~0.4T of magnetic field；Fig. 2 is that magnetic field strength is 0.1T,
Under 0.1% strain, elastomer measures storage shear modulus changing tendency figure within the scope of 1~10Hz of frequency；Fig. 3 is frequency
10Hz, under 0.1% strain, this elastomer measures fissipation factor changing tendency figure within the scope of 0~0.4T of magnetic field.
Magnetic rheology elastic body have under the action of externally-applied magnetic field magnetic-particle magnetic direction formed chain ordered structure
The characteristics of, by measurement data figure it is found that each component cooperates and collaboration, mechanical property is obtained with magnetic field strength increase
It is remarkably reinforced, so that such elastomer has good effect at stress absorption (and sqouynd absorption lowering noise) aspect under the effect of each factor
Fruit.
Application example 1
A kind of magnetic rheology elastic body of the invention be applied to sandwich style pavement structure, sandwich style pavement structure by lower and
On be broadly divided into three parts: lower layer's two-way reinforced concrete panel, stress absorbing layer and bond-retarded prestressed concrete panel.
Sandwich style pavement structure concrete road surface is laid with main construction procedure:
Firstly, two-way reinforced concrete plate is laid on the basis of soil matrix, it is assembled again thereon to be laid with a ply stress absorbed layer,
The magnetic rheology elastic body block that its absorbed layer material therefor selects preparation to complete.This elastic physical efficiency effectively absorbs rushing for heavy-duty vehicle
The effect of hitting, and have better effects in terms of vibration damping and sqouynd absorption lowering noise.After laying magnetic rheology elastic body block, make to carry out mortar
Levelling work.
Secondly, precast prestressed concrete road surface plate is passed through adjacent two pieces of precast prestressed coagulations on this basis
The shearing resistance convex key insertion shearing resistance groove of dirt road panel block completes the on-site consolidation of two pieces of precast prestressed concrete road surface plates.?
Concrete road surface plate seam crossing is laid with rubber fastening band, then, in the opening of the channel that each road surface plate is reserved to reinforcing bar duct
Interior insertion retarded adhesive prestressed steel bar.
Finally, deploying to whole retarded adhesive prestressed steel bars, initial tensioning, anchor are carried out to retarded adhesive prestressed steel bar
Gu pouring into cement mortar in the injected hole then reserved to concrete road surface plate.When the intensity of cement mortar reaches design by force
Degree 75% when, whole tensioning is carried out to retarded adhesive prestressed steel bar, completes to be laid with work.
Application example 2
A kind of magnetic rheology elastic body of the invention is applied to deck paving system, and deck installation structure is from bottom to top broadly divided into
Four parts: main body of mating formation upper layer anti-slip layer, lower layer's waterproof layer, gluing layer and floorings.
Deck paving owner wants construction procedure:
It is poured firstly, being laid with bridge floor steel mesh according to design requirement, forms floorings layer.On this basis, it is laid with
Prepare the magnetic rheology elastic body block completed.This elastic physical efficiency effectively absorbs the percussion of heavy-duty vehicle, and vibration damping with
There are better effects in terms of sqouynd absorption lowering noise.After laying magnetic rheology elastic body block, smoothed out with cement mortar.
Secondly, coating layers of asphalt malthoid and three layers of heated bitumen after to be hardened on it, that is, three oily two felt waterproof layers are formed,
Thickness is generally 1~2cm.
Finally, smearing thickness on the basis of waterproof layer is 3~4cm bituminous concrete, conserves completion in 14 days and be laid with work.
This elastomer of the invention can also be applied to the other structures with vibration damping Yu vibration isolation function.
Magnetic rheology elastic body of the invention, the preferable silicon rubber of matrix preferred elastomer, plasticizer are that dimethicone can
The magneto-induced modulus of magnetic rheology elastic body is improved, magneto-rheological characteristic is improved.Dispersing agent is methyl anyl alcohol or polyurethane, so that magnetic
Grain is dispersed in silicone rubber matrix.Cold-resistant agent is adipate ester, and cold tolerance can be improved.Binder is silicon carbide, graphite
One of alkene, carbon nanotube or silica, to enhance adhesive property between this elastomer and basal body interface.Reinforcing agent is gas
Sizing material mechanical strength can be improved in phase method white carbon black, improves mixing procedure performance.Each component of the invention cooperates and collaboration,
So that the present invention not only increases interface binding intensity between magnetic-particle and matrix, and in the premise for guaranteeing saturation magnetization
Under improve magnetic permeability, reduce eddy-current loss.
The foregoing is merely presently preferred embodiments of the present invention, the thought being not intended to limit the invention, all of the invention
Within spirit and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of magnetic rheology elastic body, which is characterized in that the elastomer includes following components according to weight ratio: rubber matrix 100
~150 parts, 600~700 parts of magnetic-particle, 16~25 parts of vulcanizing agent, 4~5 parts of vulcanization accelerator, fill material 120~180
Part, wherein fill material includes 20~30 parts of plasticizer, 30~50 parts of dispersing agent, 50~60 parts of binder, reinforcing agent 10~20
Part, 10~20 parts of cold-resistant agent；The binder is one of silicon carbide, graphene, carbon nanotube or silica；The benefit
Strong agent is fume colloidal silica.
2. magnetic rheology elastic body as described in claim 1, which is characterized in that the rubber matrix chooses silicon rubber or natural rubber
Glue.
3. magnetic rheology elastic body as described in claim 1, which is characterized in that the magnetic-particle selects micron order carbonyl iron dust
And silicon-steel powder, the two ratio are 25:1, this magnetic-particle is selected to improve magnetic permeability under the premise of guaranteeing saturation magnetization,
Reduce eddy-current loss.
4. magnetic rheology elastic body as described in claim 1, which is characterized in that the vulcanizing agent is selenium, tellurium, peroxide or sulphur
Sulphur；Promotor is alkali metal oxide.
5. magnetic rheology elastic body as described in claim 1, which is characterized in that the plasticizer is dimethicone.
6. magnetic rheology elastic body as described in claim 1, which is characterized in that the dispersing agent is methyl anyl alcohol or polyurethane；
Cold-resistant agent is adipate ester.
7. a kind of preparation method of magnetic rheology elastic body described in any one of claims 1-6, which is characterized in that including following step
It is rapid:
Step 1: it weighs by following component proportion: 100~150 parts of rubber matrix, 600~700 parts of magnetic-particle, vulcanizing agent 16~
25 parts, 4~5 parts of vulcanization accelerator, 120~180 parts of fill material, wherein fill material includes 20~30 parts of plasticizer, dispersion
30~50 parts of agent, 50~60 parts of binder, 10~20 parts of reinforcing agent, 10~20 parts of cold-resistant agent；
Step 2: rubber matrix, magnetic-particle and all fill materials are put into rubber mixing machine, mechanical uniform stirs 20 minutes,
It is placed in deaeration in vacuum barrel at 80 DEG C again, then is injected into cylindrical body aluminium-making mould；
Step 3: vulcanizing agent and vulcanization accelerator being poured into mold and vulcanized 20 minutes or so at 150 DEG C, is applied at the same time
Magnetic induction intensity is that the magnetic field 0.4T prepares anisotropy magnetic rheology elastic body；
Step 4: finally testing its mechanical property using parallel plate rheometer.
8. magnetic rheology elastic body described in any one of claims 1-6 is applied to sandwich style pavement structure or deck paving system,
Applied to the other structures with vibration damping Yu vibration isolation function.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110669329A (en) * | 2019-10-30 | 2020-01-10 | 陈海艳 | Preparation method of magnetorheological elastomer |
| CN110761138A (en) * | 2019-12-02 | 2020-02-07 | 沈阳众磊道桥有限公司 | Vehicle magnetic hybrid assembly type pavement structure suitable for heavy-load traffic and construction method |
| CN110862689A (en) * | 2019-11-29 | 2020-03-06 | 中国科学院合肥物质科学研究院 | Preparation method of magnetic control flexible surface material with orthotropic wettability |
| CN111718521A (en) * | 2020-06-28 | 2020-09-29 | 清华大学 | Magnetic-sensitive rubber composition for rubber air spring and preparation method thereof |
| CN111952064A (en) * | 2020-07-14 | 2020-11-17 | 中国科学院金属研究所 | Preparation method of magnetorheological elastomer with radially distributed magnetic particles and elastomer |
| CN113150403A (en) * | 2021-04-30 | 2021-07-23 | 清华大学 | Magnetorheological rubber composition and preparation method thereof |
| CN113386045A (en) * | 2021-07-15 | 2021-09-14 | 南华大学 | Deep ultraviolet electro-catalysis assisted magnetorheological elastomer flattening device and method |
| CN113770816A (en) * | 2021-09-09 | 2021-12-10 | 广东工业大学 | Magnetorheological elastomer and preparation method and application thereof |
| CN115785731A (en) * | 2022-12-01 | 2023-03-14 | 中山大学 | 3D printing magnetic response ink and preparation method and application thereof |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110669329A (en) * | 2019-10-30 | 2020-01-10 | 陈海艳 | Preparation method of magnetorheological elastomer |
| CN110862689B (en) * | 2019-11-29 | 2022-04-26 | 中国科学院合肥物质科学研究院 | Preparation method of magnetic control flexible surface material with orthotropic wettability |
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| CN110761138A (en) * | 2019-12-02 | 2020-02-07 | 沈阳众磊道桥有限公司 | Vehicle magnetic hybrid assembly type pavement structure suitable for heavy-load traffic and construction method |
| CN110761138B (en) * | 2019-12-02 | 2023-08-15 | 沈阳众磊道桥有限公司 | Vehicle-magnet hybrid assembled pavement structure suitable for heavy-load traffic and construction method |
| CN111718521A (en) * | 2020-06-28 | 2020-09-29 | 清华大学 | Magnetic-sensitive rubber composition for rubber air spring and preparation method thereof |
| CN111952064B (en) * | 2020-07-14 | 2021-06-01 | 中国科学院金属研究所 | Preparation method of magnetorheological elastomer with radially distributed magnetic particles and elastomer |
| CN111952064A (en) * | 2020-07-14 | 2020-11-17 | 中国科学院金属研究所 | Preparation method of magnetorheological elastomer with radially distributed magnetic particles and elastomer |
| CN113150403A (en) * | 2021-04-30 | 2021-07-23 | 清华大学 | Magnetorheological rubber composition and preparation method thereof |
| CN113386045A (en) * | 2021-07-15 | 2021-09-14 | 南华大学 | Deep ultraviolet electro-catalysis assisted magnetorheological elastomer flattening device and method |
| CN113770816A (en) * | 2021-09-09 | 2021-12-10 | 广东工业大学 | Magnetorheological elastomer and preparation method and application thereof |
| CN115785731A (en) * | 2022-12-01 | 2023-03-14 | 中山大学 | 3D printing magnetic response ink and preparation method and application thereof |
| CN115785731B (en) * | 2022-12-01 | 2023-10-24 | 中山大学 | 3D printing magnetic response ink and preparation method and application thereof |
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Application publication date: 20190906 |