A spiral photothermal drive film and a soft crawling robot based on the film

A crawling robot, photothermal technology, applied in manipulators, program-controlled manipulators, manufacturing tools, etc., can solve problems such as low braking amplitude and slow response time of drives

Active Publication Date: 2021-12-07
苏州斯坦得新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current driver has the problems of slow response time and low braking range, which limits the development of this crawling robot, and since many smart devices operate under normal temperature and natural light, it is hoped that they can be generated under a lower temperature difference. drive, therefore, there is an urgent need for a material that can respond quickly to relatively low temperature changes with high braking speed and braking amplitude

Method used

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  • A spiral photothermal drive film and a soft crawling robot based on the film
  • A spiral photothermal drive film and a soft crawling robot based on the film
  • A spiral photothermal drive film and a soft crawling robot based on the film

Examples

Experimental program
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Effect test

Embodiment 1

[0019] Example 1: Spiral photothermal drive film

[0020] First, to prepare a photothermal actuation film with a three-layer structure, dissolve carbon black (5%) and polyurethane (30%) in a mixed solvent of ethyl acetate and acetone (20% / 80%), stir well, and heat at 3000r / min spin-coated on a pet film with a thickness of 1.6 μm, and after natural drying, an ink layer with a thickness of 1.2 μm was formed. Similarly, a water-based acrylic adhesive was spin-coated on the other side of the pet to form an acrylic layer. This example The thickness of the middle acrylic layer is 2 μm to form IPAT-2. In order to study its performance, IPAT-0 without acrylic layer is used as a control.

[0021] Secondly, take a photothermal actuation film with a size of 5cm×2mm, wrap one side of the ink layer on a steel rod at a helix angle of ±45°, fix the two ends of the film with polyimide tape, and then anneal in an oven at 120°C 4 hours to form a helical coil driving film, in order to study th...

Embodiment 2

[0022] Embodiment two: soft crawling robot

[0023] Cover 10 layers of highly oriented carbon nanotube arrays on a photothermal film with a size of 7 mm × 2 mm, wrap the side of the film facing away from the carbon nanotube film on a stainless steel rod with a diameter of 4 mm, and anneal at 100 ° C for 1 hour. Forming a soft-bodied crawling robot with a bow-shaped structure, when using 30 mW cm -2 When white light irradiates the front legs of the driver, the front legs will shrink and deform. With the help of the bow-shaped structure torque, it will drive back and shrink forward. Figure 8 As shown, turning on and off the white light sequentially at a frequency of 0.4Hz can drive the crawling robot at an average speed of 26mms -1 Moving forward, this is the current reported rGO-CNT / PDMS tracked robot record value of 16mms -1 1.6 times.

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Abstract

The spiral photothermal driven film is prepared by winding a three-layer photothermal driven film into a helical coil shape and then heated and fixed. When the light is turned on, the spiral driven film rotates to unwind, and when the light is turned off, it will return to its original shape; The heat-driven film utilizes the synergistic effect of cooling and volume shrinkage of the acrylic layer, and combines the torque force formed by the helical coil heated and fixed to realize the advantages of sensitive response and large braking range under low temperature difference. The soft crawling robot prepared based on this material can quickly bend and crawl forward on a flat substrate under the drive of low-intensity white light.

Description

technical field [0001] The invention relates to the field of photothermally driven films, in particular to a spiral photothermally driven film and a soft crawling robot based on the film. Background technique [0002] In plants, there are many helical movements, including the helical movement of tendrils and the twisting of wood cells. Based on these inspirations, the membrane can be processed into a helical coil to create a helical drive, which is of great importance in robots and artificial muscles. application prospects. For example, with the rapid development of new materials and intelligent manufacturing, soft robots that can harvest light can be remotely controlled without relying on external batteries, and are favored by researchers. Such soft robots are generally made of soft, elastic For example, a soft robot made of reduced graphene oxide-carbon nanotube / polydimethylsiloxane (rGO-CNT / PDMS) composite film can move toward the Forward movement (L. Hines, K. Petersen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/04C09D175/04C09D7/61C09D133/00B25J9/00C08L67/02
Inventor 刘遵峰李晶晶陈旭种玉婷
Owner 苏州斯坦得新材料有限公司
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