Method for preparing magnetic field driven intelligent flexible material

A flexible material and magnetic field-driven technology, applied in the field of materials, can solve the problems of complex preparation process of magnetically responsive flexible materials, constraints of magnetic response rate and mechanical strength, high preparation cost, etc., to improve convenience, fast magnetic response speed, and preparation low cost effect

Inactive Publication Date: 2018-10-19
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the above-mentioned problems such as the complicated preparation process of the magnetic response flexible material, the high preparation cost, the phase restriction of the magnetic response rate and the mechanical strength; acrylamide-based hydrogel as the matrix material, Fe 3 o 4 Nanoparticles are used as the magnetic response phase, and a magnetic field-driven intelligent flexible material with fast magnetic response speed, high mechanical strength and long service life is designed and prepared by mold forming method

Method used

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  • Method for preparing magnetic field driven intelligent flexible material
  • Method for preparing magnetic field driven intelligent flexible material
  • Method for preparing magnetic field driven intelligent flexible material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] See how figure 1 As shown, the preparation of Fe 3 o 4 Magnetic field driven intelligent deformable material with nanoparticle content of 10mg / mL

[0019] Choose N,N-dimethylacrylamide as monomer, XLS-type synthetic magnesium lithium silicate as crosslinking agent, potassium persulfate as initiator, and N,N,N',N'-tetramethylethylenediamine as Catalyst, nano-wood pulp cellulose as reinforcing phase, Fe 3 o 4 Nanoparticles serve as the magnetically responsive phase. The molar ratio between monomer, initiator and catalyst is 100:0.370:0.638; the concentration of nano-wood pulp cellulose is 3mg / mL~5mg / mL, Fe 3 o 4 The concentration of nanoparticles is 10mg / mL, the mass fraction of cross-linking agent is 3wt.%~3.5wt.%, the Fe 3 o 4 Add nanoparticles to distilled water for 10-15 minutes of ultrasonic vibration, then stir for 25-30 minutes, then add nano-wood pulp cellulose, and stir for 30-40 minutes, then ultrasonically treat for 10-15 minutes; then add XLS type synt...

Embodiment 2

[0021] See how figure 2 As shown, Fe 3 o 4 Magnetic field-driven smart deformable material with nanoparticle content of 30 mg / mL

[0022] Choose N,N-dimethylacrylamide as monomer, XLS-type synthetic magnesium lithium silicate as crosslinking agent, potassium persulfate as initiator, and N,N,N',N'-tetramethylethylenediamine as Catalyst, nano-wood pulp cellulose as reinforcing phase, Fe3O4 nanoparticles as magnetic response phase, the molar ratio between monomer, initiator and catalyst is 100:0.370:0.638; the concentration of nano-wood pulp cellulose is 3mg / mL~ 5mg / mL, Fe 3 o 4 The concentration of nanoparticles is 30mg / mL, the mass fraction of cross-linking agent is 3wt.%~3.5wt.%, the Fe 3 o 4 Add nanoparticles to distilled water for 10-15 minutes of ultrasonic vibration, then stir for 25-30 minutes, then add nano-wood pulp cellulose, and stir for 30-40 minutes, then ultrasonically treat for 10-15 minutes; then add XLS type synthetic silicic acid Magnesium lithium, stir...

Embodiment 3

[0024] See how image 3 and Figure 4 As shown, Fe 3 o 4 Magnetic field driven intelligent deformable material with nanoparticle content of 50 mg / mL

[0025] Choose N,N-dimethylacrylamide as monomer, XLS-type synthetic magnesium lithium silicate as crosslinking agent, potassium persulfate as initiator, and N,N,N',N'-tetramethylethylenediamine as Catalyst, nano-wood pulp cellulose as reinforcing phase, Fe 3 o 4 Nanoparticles serve as the magnetically responsive phase. The molar ratio between monomer, initiator and catalyst is 100:0.370:0.638; the concentration of nano-wood pulp cellulose is 3mg / mL~5mg / mL, Fe 3 o 4 The concentration of nanoparticles is 50mg / mL, the mass fraction of cross-linking agent is 3wt.%~3.5wt.%, the Fe 3 o 4Add nanoparticles to distilled water for 10-15 minutes of ultrasonic vibration, then stir for 25-30 minutes, then add nano-wood pulp cellulose, and stir for 30-40 minutes, then ultrasonically treat for 10-15 minutes; then add XLS type syntheti...

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Abstract

The invention discloses a method for preparing a magnetic field driven intelligent flexible material. The method comprises the following step: by taking mold molding as a preparation method, N,N-dimethyl acrylamide hydrogel as a substrate material, and Fe3O4 nanoparticles as a magnetic response phase, and nano wood plasma cellulose as a reinforcing phase, carrying out in-situ free radical polymerization, so as to obtain the magnetic field driven intelligent flexible material of different magnetic response speeds. The material prepared by using the method is rapid in magnetic field response speed, high in mechanical strength, long in service life, in addition low in production cost, convenient to process and manufacture and wide in application range.

Description

technical field [0001] The invention relates to the field of materials, in particular to a preparation method of a magnetic field-driven intelligent flexible material. technical background [0002] With the continuous development and progress of flexible material preparation technology, the manufacturing of components based on flexible materials has been widely used in the fields of sensors, medical dressings, drug-loaded transportation, and artificial muscles. Flexible materials are stimulated by the external environment, such as changes in temperature, electric field, pH value, etc., to achieve changes in volume, shape, and structure, thereby achieving corresponding static deformation and dynamic motion. As a commonly used flexible material, hydrogel has great development and application prospects in the fields of surgical "bandages" and drug release due to its good biocompatibility. In practical applications, there are many restrictions on stimulation conditions such as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F120/54C08F2/44C08K3/22C08L1/02
CPCC08F120/54C08F2/44C08K3/22C08K2003/2275C08K2201/01C08K2201/011C08L1/02
Inventor 梁云虹侯文华赵骞宁璐平张志辉韩志武任露泉
Owner JILIN UNIV
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