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Self-sealing liquid metal pen and method of making the same

A liquid metal, self-encapsulating technology, used in non-moving pencils, printing, writing utensils, etc., can solve problems such as poor compatibility, and achieve the effect of preventing oxidation and simplifying the production process.

Active Publication Date: 2018-04-06
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem that the poor compatibility between liquid metal and various substrates leads to the inability to realize writing on the surface of various substrates, the present invention provides a new type of liquid metal that can realize writing on various substrate surfaces or walls, and at the same time encapsulates Metal pen and manufacturing method

Method used

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  • Self-sealing liquid metal pen and method of making the same
  • Self-sealing liquid metal pen and method of making the same
  • Self-sealing liquid metal pen and method of making the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1 The making of self-encapsulated liquid metal pen

[0023] 1. Take 20ml of liquid metal (the mass percentage of gallium is 75.5%, and the mass percentage of indium is 24.5%) and put it into a beaker, stir it by magnetic force for 3-6 hours, and the stirring speed is 500r / min, so that the liquid metal is partially oxidized, from The fluid state turns into paste, and its viscosity is about 578Pa.s.

[0024] 2. Take a crayon and open the middle of it with an electric drill to prepare for filling the liquid metal.

[0025] 3. Using the pouring method, the paste-like liquid metal is injected into the center of the crayon through a syringe to form a self-encapsulated liquid metal pen.

[0026] 4. By writing on the surface of the paper, the liquid metal is in the middle of the trace left by the crayon, which effectively prevents further oxidation of the liquid metal, thus realizing encapsulation while writing.

[0027] figure 1 It is the schematic diagram of pas...

Embodiment 2

[0030] Embodiment 2 The making of self-encapsulated liquid metal pen

[0031] 1. Take 20ml of liquid metal (the mass percentage of gallium is 75.5%, the mass percentage of indium is 19.5%, and the mass percentage of tin is 5%), put it into a beaker, stir it by magnetic force for 3-6 hours, and the stirring speed is 400r / min. Partially oxidize the liquid metal and transform it from a fluid state to a paste with a viscosity of about 525Pa.s.

[0032] 2. Take a crayon and open the middle of it with an electric drill to prepare for filling the liquid metal.

[0033] 3. Through the syringe, inject the paste-like liquid metal into the center of the crayon to form a self-encapsulated liquid metal pen.

[0034] 4. By writing on the surface of the paper, the liquid metal is in the middle of the trace left by the crayon, which effectively prevents further oxidation of the liquid metal, thus realizing encapsulation while writing.

Embodiment 3

[0035] Embodiment 3 The making of self-encapsulated liquid metal pen

[0036] 1. Take 20ml of liquid metal (the mass percentage of bismuth is 75%, the mass percentage of indium is 24%, and the mass percentage of tin is 1%), put it into a beaker, stir it by magnetic force for 3-6 hours, and the stirring speed is 200r / min , to partially oxidize the liquid metal and transform it from a fluid state to a paste, with a viscosity of about 600Pa.s.

[0037] 2. Take a candle and heat it to make it into a viscous substance to prepare for the production of the self-encapsulating liquid metal pen.

[0038] 3. Extrude the pasty liquid metal into a column shape through the extrusion and heating device, and then press the liquid wax into a groove shape, place the liquid metal in the middle, and compact it at 80°C to form a self-encapsulated liquid metal pen ( Figure 4 ).

[0039] 4. By writing on the surface of the paper, the liquid metal is in the middle of the trace left by the crayon, ...

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Abstract

The invention provides a novel self-packaging liquid metal pen and a manufacturing method. The self-packaging liquid metal pen is a writing pen with a liquid metal refill material as a pen refill and a macromolecule flexible material as a consumption type shell pen holder. The pen refill is made from gallium-indium alloy or gallium-indium-tin alloy or bismuth-indium-tin alloy, and the viscosity of the pen refill is 500-650 Pa.s. In the writing process, the surface of liquid metal will be covered with the macromolecule flexible material, the processes of writing and packaging are simultaneously achieved, additional packaging operation is omitted, the production cost is reduced, and convenient and rapid writing and packaging of liquid metal can be achieved.

Description

technical field [0001] The invention relates to the field of material engineering, in particular to a novel self-encapsulating liquid metal pen and a manufacturing method. Background technique [0002] Liquid metal can be written on the surface of PVC (polyvinyl chloride) with a special pen to form a writable circuit. However, due to the special wettability of liquid metal, it cannot wet many surfaces, so it needs to be modified to facilitate practical industrial applications. Contents of the invention [0003] Aiming at the problem that the poor compatibility between liquid metal and various substrates leads to the inability to realize writing on the surface of various substrates, the present invention provides a new type of liquid metal that can realize writing on various substrate surfaces or walls, and at the same time encapsulates Metal pen and manufacturing method thereof. [0004] In order to realize the object of the present invention, the present invention at fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C28/00C22C1/02B43K19/00
CPCB43K19/00C22C1/02C22C28/00
Inventor 王磊刘静
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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