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Method and device for constructing super hydrophobic bionic spider silk moisture collection device with 3D printing technology

A collection device and 3D printing technology, applied in the field of bionics, can solve problems such as difficulty in manufacturing controllable 3D geometric shapes, and achieve the effect of improving water collection efficiency and good effect

Active Publication Date: 2020-07-10
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional methods are difficult to manufacture with controllable 3D geometry

Method used

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  • Method and device for constructing super hydrophobic bionic spider silk moisture collection device with 3D printing technology
  • Method and device for constructing super hydrophobic bionic spider silk moisture collection device with 3D printing technology
  • Method and device for constructing super hydrophobic bionic spider silk moisture collection device with 3D printing technology

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The composite photocurable resin was prepared by mixing the pretreated photocurable polymer alkali-free glass fiber (E-glass) and multi-walled carbon nanotubes (MWCNTs), and the periodic arrangement was printed by a photocurable 3D printer (DLP) The bionic spider silk with spindle knots is coated with a nano-scale super-hydrophobic layer on the surface of the bionic spider silk. The periodic arrangement of the spindle knots is formed by a group of adjacent two spindle knots to form a recess in the middle, as a drop of water. pool. Specifically include the following steps:

[0032] Step A, pre-treatment of glass fiber: mixing 0.2wt% oil red O dye with photocurable polymer alkali-free glass fiber (EnvisionTEC E-Glass 2.0) under magnetic stirring for 1.5h, the rotating speed of magnetic stirrer is 600r / min. Then conduct an ultrasonic bath for 30 min, with an ultrasonic power of 80 W, to completely dissolve the Oil Red O dye in the glass fiber. Among them, the amount of ...

Embodiment 2

[0037] Step A, pre-treatment of glass fiber: mixing 0.2wt% oil red O dye with photocurable polymer alkali-free glass fiber (EnvisionTEC E-Glass 2.0) under magnetic stirring for 1.5h, the rotating speed of magnetic stirrer is 600r / min. Then conduct an ultrasonic bath for 30 min, with an ultrasonic power of 80 W, to completely dissolve the Oil Red O dye in the glass fiber. Among them, the amount of oil red O dye is 3% of the mass of light-curable alkali-free glass fiber;

[0038]Step B. Preparation of glass fiber / MWCNTs composite material: Mix MWCNTs (MWCNTs length 1-5 μm, outer diameter 5-15 nm) and photocurable alkali-free glass fiber under magnetic stirring conditions for 2.5 hours, and magnetic stirrer The rotating speed is 800r / min, followed by an ultrasonic bath for 30min, and the ultrasonic power is 100W. Among them, the amount of MWCNTs is 3% of the mass of light-curable alkali-free glass fiber;

[0039] Step C, light-curing 3D printing: The 3D printer model is Envisi...

Embodiment 3

[0042] Step A, pre-treatment of glass fiber: mixing 0.2wt% oil red O dye with photocurable polymer alkali-free glass fiber (EnvisionTEC E-Glass 2.0) under magnetic stirring for 1.5h, the rotating speed of magnetic stirrer is 600r / min. Then conduct an ultrasonic bath for 30 min, with an ultrasonic power of 80 W, to completely dissolve the Oil Red O dye in the glass fiber. Among them, the amount of oil red O dye is 5% of the mass of light-curable alkali-free glass fiber;

[0043] Step B. Preparation of glass fiber / MWCNTs composite material: Mix MWCNTs (MWCNTs length 1-5 μm, outer diameter 5-15 nm) and photocurable alkali-free glass fiber under magnetic stirring conditions for 2.5 hours, and magnetic stirrer The rotating speed is 800r / min, followed by an ultrasonic bath for 30min, and the ultrasonic power is 100W. Among them, the amount of MWCNTs is 5% of the mass of light-curable alkali-free glass fiber;

[0044] Step C, light-curing 3D printing: The 3D printer model is Envis...

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Abstract

The invention belongs to the field of bionics, and particularly relates to a method and device for constructing a super hydrophobic bionic spider silk moisture collection device with a 3D printing technology. The method comprises the following steps that firstly, composite photocurable resin is prepared by mixing the pretreated Envision TEC E-Glass 2.0 (E-glass) and multi-wall carbon nanotubes (MWCNTs), then the bionic spider silk with periodically arranged spindles is printed by a light-curing 3D printer (DLP), finally, the nano super hydrophobic layer is coated on the surface of the bionic spider silk through a gas phase process, and the condensation of water droplets on the hydrophobic surface is more likely than that on the hydrophilic surface. By means of the method, when the water droplets drops on the bionic spider silk, the Laplace pressure difference between the spindle and each spindle knot is used, the water droplets can converge to each spindle knot and finally converges tothe concave place between every two adjacent spindle knots, and the efficiency and quantity of water collection are improved accordingly.

Description

technical field [0001] The invention belongs to the field of bionics, and in particular relates to a method and a device for constructing a superhydrophobic bionic spider silk moisture collection device by 3D printing technology. Background technique [0002] The impact of the current shortage of fresh water resources is becoming more and more significant. Therefore, it is very important to effectively solve the problem of water shortage in our country. [0003] The spider silk in nature has given us inspiration. Through the study of the structure of spider silk, it is found that spider silk is a conventional fiber, but there are periodically arranged spindle knots distributed on the fiber. In a humid environment, moisture condenses on the surface of spider silk to form small water droplets. Due to the existence of these periodically arranged spindles, the curvature of the spider silk also undergoes periodic changes, causing water droplets to form on the spider silk. The f...

Claims

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Application Information

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IPC IPC(8): B29C64/124B29C64/314B29C64/379B33Y10/00B33Y30/00B33Y40/10B33Y40/20B33Y80/00
CPCB33Y10/00B33Y30/00B33Y40/00B33Y80/00B29C64/124B29C64/314B29C64/379
Inventor 王成全弓晓晶
Owner CHANGZHOU UNIV
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