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Photochromic microcapsule coating amount detection method

A photochromic and detection method technology, applied in the direction of color/spectral characteristic measurement, etc., can solve the problems of incompleteness, error, inaccurate detection results, etc., and achieve the effect of improving production

Inactive Publication Date: 2013-02-20
CHINA TEXTILE ACAD JIANGNAN BRANCH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Although the above-mentioned detection method is relatively convenient and practical, there has always been the problem of inaccurate detection results. Through experimental detection and analysis, it was found that during the synthesis process, some core materials were not coated or the coating was incomplete, thus depositing On the surface of the wall material, the organic solvent gradually volatilizes and disappears over time, which leads to errors
[0007] The present invention will solve the error problem caused by the above-mentioned weighing method, so as to seek a method for detecting the coating amount of photochromic microcapsules with higher precision

Method used

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  • Photochromic microcapsule coating amount detection method
  • Photochromic microcapsule coating amount detection method
  • Photochromic microcapsule coating amount detection method

Examples

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Embodiment

[0034] Example: The colorimetric method is used to detect the coating amount of photochromic microcapsules (light reddening).

[0035] Main experimental instruments, materials and reagents: 722S visible spectrophotometer; photochromic core material, photochromic microcapsules, organic solvents.

[0036] Experimental steps:

[0037] 1. Take 3-10 grams of the core material (light reddening), dissolve it in 50-100ml of organic solvent, and prepare the light reddening core material organic solution A, take 10 grams of the prepared core material organic solution A, and put The core material organic solution A is placed in a 722S visible spectrophotometer at room temperature to measure its maximum absorption wavelength, such as figure 1 As shown, the maximum absorption wavelength of the core material organic solution is 477nm. Then, the absorbance was measured at the maximum absorption wavelength of the core material organic solution A and marked as A0.

[0038] 2. Take 10-50 gra...

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Abstract

The invention discloses a photochromic microcapsule coating amount detection method. The method is characterized in comprising the components of: (1) a core material is dissolved in an organic solvent, such that a core material organic solution is prepared; a maximal absorption wavelength of the prepared solution is measured by using a spectrophotometer; and an absorbance is measured at the maximal absorption wavelength of the prepared solution, and is marked as Ao; (2) photochromic microcapsules prepared with the core material provided in the step 1 are uniformly dispersed in an organic solvent; the mixture is filtered, such that a core material organic raffinate is obtained; a maximal absorption wavelength of the core material organic raffinate is measured by using the spectrophotometer; and an absorbance is measured at the maximal absorption wavelength of the prepared solution, and is marked as Ai; and (3) a coating rate is calculated. The method provided by the invention has the advantages such as high detection precision, reliable result, and the like.

Description

Technical field: [0001] The invention relates to a method for detecting the coating amount of microcapsules, in particular to a method for detecting the coating amount of photochromic microcapsules. Background technique: [0002] Since Wmarckwald first discovered that some solid or liquid compounds have photochromic properties in 1899, photochromic technology has been widely used in many fields, such as textiles, daily necessities, characteristic photosensitive materials and information storage materials, etc. played an important role. With the development of microcapsule technology, making photochromic materials into microcapsules before printing and dyeing can greatly reduce the impact of the environment on it and greatly expand the application prospects of photochromic materials in textile fabrics. [0003] Photochromic microcapsules are obtained by using the photochromic material as the core material and transparent resin as the wall material for coating. The microencap...

Claims

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Application Information

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IPC IPC(8): G01N21/31
Inventor 李淑莉许增慧吕世静党一哲
Owner CHINA TEXTILE ACAD JIANGNAN BRANCH
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