Color change bar

A plastic and outer tube technology, applied in the field of color-changing rods, can solve the problems of toxicity, environmental pollution, rare color-changing rods, etc., and achieve the effect of low cost and simple structure

Inactive Publication Date: 2012-12-05
SHANXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are various fluorescent sticks on the market, but color-changing sticks are very rare, and there are no reports of color-changing sticks that can change color twice
Moreover, in

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0013] A color-changing rod, which is composed of a flexible plastic outer tube and a glass capillary installed inside the plastic outer tube; the preparation process is as follows: a glass capillary with an inner diameter of 1.45mm, an outer diameter of 1.6mm, and a length of 10cm is filled with 0.003g of sodium nitrite and Ferric chloride 0.10g, seal, and it is packed in the plastic outer tube that diameter is 9mm, length is 20cm; Potassium thiocyanate 0.20g, citric acid 1.92g, 0.0005g of EDTA and 10mL of tap water, and seal the seal to make a color-changing stick. The color-changing rod is colorless. When using, bend the plastic outer tube to break the glass capillary, and the color-changing reaction will occur, and the color-changing rod will change from colorless to red (the reaction solution of potassium thiocyanate and ferric chloride is red under acidic conditions. ), and the red color will not fade.

Embodiment 2

[0015] A color-changing rod, which is composed of a bendable plastic outer tube and a glass capillary installed inside the plastic outer tube; the preparation process is as follows: a glass capillary with an inner diameter of 2.52 mm, an outer diameter of 2.7 mm, and a length of 10 cm is filled with 0.50 g of sodium nitrite, Seal it and put it into a plastic outer tube with a diameter of 11 mm and a length of 20 cm; put 3.5 g of potassium thiocyanate, 1.92 g of citric acid, 0.0006 g of EDTA and 10 mL of tap water between the plastic outer tube and the glass capillary, Seal the seal to obtain a color-changing stick. The color-changing rod is colorless. When using, bend the plastic outer tube to break the glass capillary, and then the color-changing reaction occurs. The color-changing rod changes from colorless to red. After 2-3 hours, the color-changing rod changes from red to colorless again ( The reaction solution of potassium thiocyanate and sodium nitrite under acidic condi...

Embodiment 3

[0017] A color-changing rod, which is composed of a bendable plastic outer tube and a glass capillary installed inside the plastic outer tube; the preparation process is as follows: a glass capillary with an inner diameter of 1.1mm, an outer diameter of 1.3mm, and a length of 10cm is filled with 0.002g of sodium nitrite and three Ferric chloride 0.09g, seal, and it is packed in the plastic outer tube that diameter is 9mm, length is 20cm; Potassium thiocyanate 0.19g, citric acid 1.93g, secondary 0.02g of methyl green, 0.0005g of EDTA and 10mL of tap water, seal the seal to make a color-changing stick. The color-changing rod is green. When using, the plastic outer tube is bent to break the glass capillary, and the color-changing reaction occurs, and the color-changing rod changes from green to black (the reaction solution of potassium thiocyanate and ferric chloride under acidic conditions is red, showing The solution is black after compounding the red color and the green color ...

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Abstract

The invention relates to a color change bar, which consists of a bent plastic outer tube and a glass capillary tube encapsulated inside the plastic outer tube, and is characterized in that sodium nitrite and ferric trichloride are encapsulated in the glass capillary tube, and potassium rhodanide, citric acid, EDTA (ethylene diamine tetraacetic acid), methylene green and tap water are encapsulated between the plastic outer tube and the glass capillary tube. When the bent plastic outer tube is used, the glass capillary tube fractures, and at the moment, raw material ingredients are mixed, and color change reaction is generated. The color change bar provided by the invention has the advantages that the structure is simple, the manufacture cost is low, and in addition, the environment is protected, and certain color change bars can realize the color change for many times. The color change bar belongs to an ideal toy for children.

Description

technical field [0001] The invention relates to a toy, in particular to a color-changing stick. Background technique [0002] At present, there are various fluorescent sticks on the market, but the color-changing sticks are very rare, and the color-changing sticks that can change twice in color have not been reported. Moreover, in fluorescent rods, some organic macromolecules are usually used as fluorescent materials, which are usually poisonous, difficult to deal with fluorescent materials, and easily pollute the environment. Contents of the invention [0003] The object of the present invention is to overcome the deficiencies of the prior art and provide an environment-friendly color-changing stick with simple structure and low cost. [0004] A color-changing rod provided by the invention is composed of a bendable plastic outer tube and a glass capillary encapsulated in the plastic outer tube; it is characterized in that sodium nitrite and ferric chloride are encapsulat...

Claims

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Application Information

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IPC IPC(8): A63H33/22
Inventor 弓晓娟李俊芬周叶红宋金萍董川
Owner SHANXI UNIV
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