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Photothermal stimulation intelligent response actuator film, preparation method of film and application of film

A photothermal response, actuator technology, applied in mechanical equipment, machines/engines, mechanisms that generate mechanical power, etc., can solve problems that need to be further improved, and achieve the effects of high production efficiency, convenient operation and low cost

Active Publication Date: 2020-07-10
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although some current research is developing artificial intelligence materials composited with poly(N-isopropylacrylamide) and carbon nanotubes or graphene, most of them are based on the principle that its low critical solution temperature is close to the temperature of the human body, which can only be used for In terms of biomedical micro-robots, the range of use, the width of the controlled window, the size of the deformation, and the speed still need to be further improved.

Method used

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  • Photothermal stimulation intelligent response actuator film, preparation method of film and application of film
  • Photothermal stimulation intelligent response actuator film, preparation method of film and application of film
  • Photothermal stimulation intelligent response actuator film, preparation method of film and application of film

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Embodiment 1

[0067] The preparation method of the photothermal stimulation intelligent response actuator film of this embodiment includes the following steps:

[0068] Step 1: Take 3mg of graphene oxide and disperse it in 1ml of deionized water. Use a rotating speed of 90 rpm and magnetic stirring for 72 hours. After stirring, use a flow rate of 0.5 ml / s and suction filtration for 20 seconds to form a film. The thickness is 0.02mm carbon nano material film layer 2.

[0069] Step 2: Take 5mg of poly-N-isopropylacrylamide (weight average molecular weight of 3,000) and 5mg of graphene oxide, dissolve in 10ml of deionized water, use a rotational speed of 90 revolutions / min, magnetically stir for 72 hours, and stir evenly to obtain Mix solution A. Among them, the particle size of graphene oxide is 0.2 μm-10 μm.

[0070] Step 3: Coat the mixed solution A obtained in step 2 on the carbon nano material film layer 2 obtained in step 1, using a flow rate of 0.5 ml / s, suction filtration for 20 seconds, an...

Embodiment 2

[0080] The preparation method of the photothermal stimulation intelligent response actuator film of this embodiment includes the following steps:

[0081] Step 1: Take 6mg of single-walled carbon nanotubes and disperse them in 3ml of N,N-dimethylformamide, using a rotating speed of 120 revolutions / min, magnetic stirring for 48 hours, after stirring evenly, drying at 55°C for 2 hours to form a film , A carbon nano material film layer 2 with a thickness of 0.03 mm is obtained. Among them, the particle size of single-walled carbon nanotubes is 1nm-2nm.

[0082] Step 2: Take 25mg of poly-N-isopropylacrylamide (weight average molecular weight of 70,000) and 25mg of graphene oxide, dissolve in 10ml of deionized water, use a rotating speed of 120 rpm, magnetic stirring for 48 hours, after stirring uniformly, obtain Mix solution A.

[0083] Step 3: Coat the mixed solution A obtained in step 2 on the carbon nano material film layer 2 obtained in step 1, and bake at 55°C for 2 hours to form ...

Embodiment 3

[0093] The preparation method of the photothermal stimulation intelligent response actuator film of this embodiment includes the following steps:

[0094] Step 1: Take 8mg of multi-walled carbon nanotubes, disperse them in 5ml of ethanol, use a rotating speed of 150 rpm, magnetic stirring for 24 hours, after stirring, air dry at 20°C for 10 hours, and form a film to obtain a carbon nano material with a thickness of 0.02 mm 膜层2。 Film layer 2. Among them, the particle size of the multi-walled carbon nanotubes is 20 nm-40 nm.

[0095] Step 2: Take 35mg of poly-N-isopropylacrylamide (weight-average molecular weight of 200,000) and 15mg of multi-walled carbon nanotubes, and dissolve in 5ml of N,N-dimethylformamide at a speed of 150 revolutions / min , Magnetic stirring for 24h, after stirring evenly, a mixed solution A is obtained.

[0096] Step 3: Coat the mixed solution A obtained in step 2 on the carbon nano material film layer 2 obtained in step 1, air dry at 20°C for 10 hours, and for...

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Abstract

The invention discloses a photothermal stimulation intelligent response actuator film, a preparation method of the film and application of the film, and belongs to the technical field of polymer compounding. The photothermal stimulation intelligent response actuator film is composed of three layers of films which are sequentially arranged in a stacked mode from top to bottom, wherein the first layer is a carbon nanocomposite film layer of poly N-isopropylacrylamide, the second layer is a carbon nanomaterial film layer, and the third layer is a carbon nanocomposite film layer of poly (N-isopropylacrylamide-co-acrylamide). The invention further discloses the preparation method and application of the photothermal stimulation intelligent response actuator film. The photothermal stimulation intelligent response actuator film can generate large deformation in stages within a wider temperature range, such temperature stimulation response has reversibility, and therefore the photothermal stimulation intelligent response actuator film is particularly suitable for photo-thermal response actuators such as soft robots, drug conveyor, motors and artificial muscles.

Description

Technical field [0001] The invention relates to a photothermal stimulus intelligent response actuator film, a preparation method and application thereof, and belongs to the technical field of polymer composites. Background technique [0002] Smart drives can respond to environmental stimuli (such as pH, temperature, electricity, chemical energy, solvents, humidity, and light), and provide well-controlled and reversible shape changes. They are used in wearable computers, artificial muscles, electronic skins, and smart micro robots, etc. The field has huge application potential. Therefore, many researchers devote themselves to the rational design and construction of intelligent actuators based on various material systems. Currently, the brakes being developed or applied include shape memory alloys or polymers, stimulus-responsive gels, liquid crystal polymers and conjugated polymers. [0003] Using light as an external field to stimulate the actuator to obtain a response is an impo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03G7/06C08L33/24C08K3/04C08J5/18C08F220/54C08F220/56
CPCC08F220/54C08J5/18C08J2333/24C08K2201/011C08K3/041C08K3/042F03G7/06C08F220/56
Inventor 杜飞鹏刘哲坤罗帅张云飞鄢国平郭庆中
Owner WUHAN INSTITUTE OF TECHNOLOGY
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