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A kind of preparation method of pvc-gel mesh electric driver

A driver and net-like technology, applied in the direction of processing and manufacturing, manufacturing tools, additive manufacturing, etc., to achieve the effect of rapid prototyping and high strain

Active Publication Date: 2020-05-22
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the above-mentioned technical problems, the object of the present invention is to combine 3D printing technology with PVC-gel, solve the difficult problem of PVC-gel rapid prototyping and manufacture complex structure, and provide a kind of preparation method of PVC-gel mesh electric actuator, It can be applied to the manufacture of PVC-gel with different structures and devices

Method used

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  • A kind of preparation method of pvc-gel mesh electric driver
  • A kind of preparation method of pvc-gel mesh electric driver
  • A kind of preparation method of pvc-gel mesh electric driver

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preparation example Construction

[0032] The preparation method of a kind of PVC-gel mesh electric drive of the present invention comprises the following steps:

[0033] 1) Configuration of printing ink: polyvinyl chloride (PVC), butylene adipate (DBA) and tetrahydrofuran (THF) are used as raw materials; according to polyvinyl chloride (PVC), butylene adipate (DBA) Mix at a certain mass ratio, then dissolve in tetrahydrofuran, stir and mix evenly until PVC is evenly dispersed in the mixed solution into a milky solution, and then stand for 1-2 hours until the bubbles are eliminated. In the entire printing ink, seal the bottle cap with a sealing film Seal to prevent the solution from evaporating. Among them, the ratio of PVC to butylene adipate (DBA) can vary from (1:1 to 1:5); the ratio of (PVC+DBA) to tetrahydrofuran is 1: (2-3). After mixing, it becomes a shear-thinning solution.

[0034] 2) Solution and setting of direct write printing parameters

[0035] ①Put the printing ink into the dispensing head equ...

Embodiment 1

[0040] 1) Configuration of printing ink:

[0041] Such as figure 1 As shown, first weigh 2g of PVC-gel powder and 8g of butylene adipate and mix them, then add 25g of THF, and use magnetic stirring until the PVC powder is fully dissolved in THF, test the rheological properties of the solution, and ensure that the concentration of the ink is suitable Direct write printing.

[0042] 2) Direct write printing process

[0043] ①Put the printing ink into the dispensing head equipped with a needle, and install the dispensing needle on the three-axis mobile platform, use the syringe pump to control the extrusion flow of the ink to 0.03ml / min, and use the 3D printing software to control the scanning speed to 36mm / s, the height of the nozzle from the forming plate is 0.5mm, and the setting temperature of the forming plate is 50°C;

[0044] ②Set the scanning distance to 0.15mm, and conduct the line-to-surface experiment to obtain a relatively flat single-layer PVC-gel layer, and the t...

Embodiment 2

[0049] 1) Configuration of printing ink:

[0050] Such as figure 2 As shown, first weigh 2.5g of PVC-gel powder and 8g of butylene adipate and mix them, then add 30g of THF, use magnetic stirring until the PVC powder is fully dissolved in THF, test the rheological properties of the solution, and ensure the concentration of the ink Suitable for direct writing printing.

[0051] 2) Direct write printing process

[0052] ①Put the printing ink into the dispensing head equipped with a needle, and install the dispensing needle on the three-axis mobile platform, use the syringe pump to control the extrusion flow rate of the ink to 0.05ml / min, and use the 3D printing software to control the scanning speed to 30mm / s, the height of the nozzle from the forming plate is 0.2mm, and the setting temperature of the forming plate is 40°C;

[0053] ②Set the scanning distance to 0.12mm, and conduct the line-to-surface test to obtain a relatively flat single-layer PVC-gel layer, and the thick...

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Abstract

The invention discloses a 3D direct writing printing process of an electroactive polymer (a PVC gel material). The PVC gel materials of different structures are prepared from raw materials polyvinyl chloride, dibutyl adipate and tetrahyrofuran through a printing process of a 3D direct writing device. The process flow comprises three parts: (1) preparing printing ink which meets certain viscosity and shear thinning property to meet a direct writing printing demand; (2) adjusting printing process parameters, such as extruding flow, scanning speed, height of a spray nozzle, heating temperature, layer thickness and etc, controlling precisions of forming lines with single points and splicing a face with the lines to control the shape; and (3) manufacturing and post-treatment of a surface electrode of the material. The process can manufacture a PVC-gel material and a structure quickly and can be used in the fields of flexible machinery, soft robots and the like.

Description

technical field [0001] The invention relates to a 3D direct-writing printing process of an electroactive polymer (PVC gel material), in particular to a preparation method of a PVC-gel mesh electric driver. Background technique [0002] PVC gel (poly vinylchloride-ge1, referred to as PVC) is an electroactive polymer with high strain (above 13%), fast response, wide operating frequency, light weight, operating voltage between IPMC and DE, driving High performance, can realize the advantages of bending and up-and-down vibration driving forms, etc., gradually attracted attention by researchers, and carried out preliminary applications (Park.W.H.Development of a flexible and bendable vibrotactile actuator based on wave-shaped poly(vinyl chloride) / acetyl tributyl citrate gels for wearable electronic devices. [J] Smart materials and structure, 2016, 25: 115020.). Hashimoto of Shinshu University in Japan used PVC-gel to manufacture motion assistance equipment with variable stiffne...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/106B29C64/314B29C64/386B29C64/321B29C64/379B33Y30/00B33Y40/00B33Y40/20B33Y50/00B33Y70/10
CPCB29C64/106B29C64/314B29C64/321B29C64/379B29C64/386B33Y30/00B33Y40/00B33Y50/00B33Y70/00
Inventor 陈花玲罗斌徐雪杰朱子才
Owner XI AN JIAOTONG UNIV
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