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Method for preparing liquid plasticine and plasticine molding method

A technology of liquid plasticine and sol, applied in toys, entertainment, etc., can solve the problems of difficult, time-consuming and labor-intensive fine control of the structure, and achieve the effect of simple shape control

Inactive Publication Date: 2016-09-28
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is time-consuming and labor-intensive in preparing liquid plasticine with complex shapes, and it is difficult to finely control the structure.

Method used

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  • Method for preparing liquid plasticine and plasticine molding method
  • Method for preparing liquid plasticine and plasticine molding method
  • Method for preparing liquid plasticine and plasticine molding method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1. Measure 150ml of absolute ethanol (EtOH) and 9-21ml of tetraethyl orthosilicate (TEOS) into a beaker, stir at room temperature for 5-20min to mix evenly; then add 3.9-6.9ml to a concentration of 25 % of ammonia (NH 3 ·H 2 O) Stirring for 10-40min, then standing and aging at room temperature for 3-9 days; immersing the slide glass in the sol, pulling the slide glass through the pulling coating method at a speed of 4000 μm / s, when the sol can be placed on the slide glass When the film is uniformly formed on the chip and the film is thick (film thickness is 150-350nm), you can add 2.16-16.56ml of hexamethyldisilazane (HMDS) and stir for 10-40min, then let it stand for aging for 1-2 days , that is, to obtain the alkylated SiO 2 Sol. The whole preparation process was sealed to the sol to avoid the evaporation of absolute ethanol.

[0031] Wherein the volume ratio of added reagent is:

[0032] TEOS:EtOH:NH 3 ·H 2 O:HMDS=(3~7):50:(1.3~2.3):(0.72~5.52).

[0033] 2. T...

Embodiment 2

[0037] 1. Measure 150ml of absolute ethanol (EtOH) and 9-21ml of tetraethyl orthosilicate (TEOS) into a beaker, stir at room temperature for 5-20min to mix evenly; then add 3.9-6.9ml to a concentration of 25 % of ammonia (NH 3 ·H 2 O) Stirring for 10-40min, then standing and aging at room temperature for 3-9 days; immersing the slide glass in the sol, pulling the slide glass through the pulling coating method at a speed of 4000 μm / s, when the sol can be placed on the slide glass When the film is uniformly formed on the chip and the film is thick (film thickness is 150-350nm), you can add 2.16-16.56ml of hexamethyldisilazane (HMDS) and stir for 10-40min, then let it stand for aging for 1-2 days , that is, to obtain the alkylated SiO 2Sol. The whole preparation process was sealed to the sol to avoid the evaporation of absolute ethanol.

[0038] Wherein the volume ratio of added reagent is:

[0039] TEOS:EtOH:NH 3 ·H 2 O:HMDS=(3~7):50:(1.3~2.3):(0.72~5.52).

[0040] 2. Th...

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Abstract

The present invention relates to a method for preparing liquid plasticine and a plasticine forming method. 2 Sol, depositing multiple layers of weakly binding hydrophobic SiO on the bottom and wall of containers such as petri dishes by dipping and pulling coating method 2 Nanoparticles, and then put an appropriate amount of water in the container, and use the method of tilting or shaking the container to make the water collide with the wall of the container according to the volume of the water, which can cause the outermost layer of SiO on the wall of the container. 2 The nanoparticles are transferred to the surface of the water and form a close-packed state on the surface of the water that cannot move freely, so that the water droplets cannot return to their normal curvature and become complex droplets with plastic shapes - liquid plasticine. On this basis, the liquid plasticine is operated by a combination of cutting, extraction and water injection, so as to realize the regulation of its shape. The method for preparing and regulating the shape of liquid plasticine involved in the present invention is suitable for constructing liquid plasticine of complex shape.

Description

technical field [0001] The invention belongs to the field of droplet shape control, and in particular relates to a method for preparing liquid plasticine and a molding method for the plasticine. Background technique [0002] The shape of a drop of water on a solid surface always approximates a fraction of a normal sphere. If the surface of the water droplet is covered with a layer of hydrophobic particles and made to form a clogged state, the water droplet can be stably deformed, resulting in solid-like plasticity. This complex droplet is called "liquid plasticine", and it is a new type of soft matter system reported in 2016 (Soft Matter, 2016, 12, 1655). It has important application value in the field of micro-containers, such as 3D for cells training etc. [0003] The preparation method of liquid plasticine has only a kind of openly reported, i.e. " xerogel embossing method ". Specifically, liquid plasticine is prepared by squeezing a water droplet between two coated gl...

Claims

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Application Information

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IPC IPC(8): C04B12/00A63H33/00
CPCC04B12/04A63H33/00
Inventor 李晓光王森浩臧渡洋耿兴国
Owner NORTHWESTERN POLYTECHNICAL UNIV
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