Application method of photosensitive color changing material in plastic

A technology of photochromic and application method, applied in the coating and other directions, can solve the problems of affecting transparency, large amount of photosensitive pigments, loss of color, etc., and achieve the effect of reducing pollution

Inactive Publication Date: 2019-03-01
杨玲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the amount of photosensitive pigment added is large, which affects the transparency and the continuous exposure time for more than 1 month will cause color loss

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The present invention will be further described below.

[0015] The technical scheme that this embodiment mode adopts is: it comprises the following steps:

[0016] 1. Select plastic materials with a melt index (MI value) greater than 10 and a bending modulus of elasticity less than 13,000;

[0017] 2. Choose a photosensitive toner with a particle size of 1-10um, a maximum temperature resistance of 230°C, and a water content of less than 0.3%; the photosensitive toner content accounts for 0.5% of the plastic material content;

[0018] 3. Wet the plastic material with white mineral oil. The amount of white mineral oil added should not exceed 0.02% of the plastic material content. Then add the photosensitive toner into the plastic material and stir well. Pay attention to the dispersion when stirring. If the dispersion is poor Appropriate amount of dispersant can be added;

[0019] 4. Different color powders can be added to mix and match to produce more variety of color ...

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PUM

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Abstract

The invention discloses an application method of a photosensitive color changing material in a plastic, comprising the following steps: 1, selecting the plastic having a melt index of more than 10 anda bending elastic modulus of less than 13000; 2, selecting a photosensitive toner having a particle diameter of 1-10 [mu]m and a water content of less than 0.3%, and resisting a maximum temperature up to 230 DEG C, wherein the content of the photosensitive toner accounts for 0.2-5.0% of that of the plastic; 3, wetting the plastic with white mineral oil in an addition amount not more than 0.02% ofthe content of the plastic, adding the photosensitive toner into the plastic, and stirring uniformly; 4, adding different toners for mixed use; 5, performing sol injection molding at 230 DEG C or less; and 6, adding 20% of an antioxidant and 20% of a thermal stabilizer based on the content of the photosensitive toner in processing. The photographic plastic products prepared by using the method can meet the aesthetics and taste awareness of different use groups, and the method prevents fake or inferior products and reduces environmental pollution caused by electroplating in the traditional methods.

Description

technical field [0001] The invention relates to the technical field of photochromic materials, in particular to an application method of photochromic materials on plastic materials. Background technique [0002] Photosensitive color-changing powder is a photosensitive color-changing product. The color-changing principle is to absorb a specific wavelength of ultraviolet light source, and the energy of the light source produces a color change (into purple, red, blue, yellow, green, etc.), sunlight or ultraviolet light, that is It will change from colorless to colored, and the principle of color change: use the energy of UVA to open the photosensitive molecular bonds, making it jump from low energy level to high energy level, from invisible light to visible light, thereby producing a color change; when losing ultraviolet light or temperature When the temperature rises above 45°C, the photosensitive molecular bonds are closed and the color returns to its original color. Photose...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/00B29B7/00
CPCB29B7/002B29C45/00B29K2995/002
Inventor 杨玲
Owner 杨玲
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