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A kind of preparation method of vanadium pentoxide photochromic flexible epoxy resin film

A flexible epoxy resin, vanadium pentoxide technology, applied in chemical instruments and methods, color-changing fluorescent materials, etc., can solve problems such as poor flexibility and ductility, and achieve the effect of improving flexibility and ductility

Active Publication Date: 2017-08-25
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of poor flexibility and ductility of the existing vanadium pentoxide photochromic materials, thereby providing a method for preparing a vanadium pentoxide photochromic flexible epoxy resin film

Method used

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  • A kind of preparation method of vanadium pentoxide photochromic flexible epoxy resin film
  • A kind of preparation method of vanadium pentoxide photochromic flexible epoxy resin film
  • A kind of preparation method of vanadium pentoxide photochromic flexible epoxy resin film

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specific Embodiment approach 1

[0015] Specific embodiment one: In this embodiment, a method for preparing a vanadium pentoxide photochromic flexible epoxy resin film is realized according to the following steps:

[0016] 1. Take 7~9gV 2 o 5 Put the powder into an alumina crucible, heat it to melt, quickly pour it into 180-220ml of deionized water, stir it magnetically at a rate of 800-1000r / min for 1-3 hours, and obtain a vanadium pentoxide sol;

[0017] 2. Take 90-110ml of E44 type epoxy resin, add polydimethylformamide to dilute to 110-130ml, then add 25-35ml of polyamide curing agent and 5-7ml of vanadium pentoxide sol, mix well and let it stand Place until the air bubbles are discharged to obtain a mixed resin;

[0018] 3. Adjust the scraper of the film scraping machine to a height of 500 μm, pour 7-10ml of mixed resin on the surface of a glass plate with fiber cloth or a polytetrafluoroethylene plate, and scrape the film at a speed of 0.5-0.7m / min. Repeat scraping the film 2 to 3 times, then dry and...

specific Embodiment approach 2

[0021] Specific embodiment two: the difference between this embodiment and specific embodiment one is: take 8gV in step one 2 o 5 The powder was put into an alumina crucible, heated to melt, quickly poured into 200ml of deionized water, and stirred magnetically at a rate of 900r / min for 2h. Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0022] Specific embodiment three: the difference between this embodiment and specific embodiment two is: get the E44 type epoxy resin of 100ml in the step 2, add polydimethylformamide and dilute to 120ml, then add the polyamide curing agent of 30ml and 6ml Vanadium pentoxide sol. Other steps and parameters are the same as those in Embodiment 1.

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Abstract

The invention discloses a preparation method of vanadium pentoxide photochromic flexible epoxy resin film, which relates to a preparation method of photochromic flexible epoxy resin film. The invention aims to solve the problems of poor flexibility and ductility of existing vanadium pentoxide photochromic materials. Methods: 1. Prepare vanadium pentoxide sol; 2. Prepare mixed resin; 3. Scrape the mixed resin, dry and solidify, and complete after peeling off. The invention separates the vanadium pentoxide sol from the hard substrate, disperses the vanadium pentoxide into the flexible resin film, makes itself flexible, and improves the flexibility and ductility of the film. In addition, the amount of vanadium pentoxide sol added is also small, and it can have a photochromic effect, which meets people's latest requirements for wearability, bendability, and extensibility.

Description

technical field [0001] The invention relates to a preparation method of a photochromic flexible epoxy resin film. Background technique [0002] Add photochromic pigments to transparent resin to make photochromic materials, which are used in sun glasses, color-changing glasses, etc. Linking photochromic pigments with high polymers can make materials with photochromic properties, which have great application prospects in photoelectric technology and light control devices. Coatings with photochromic materials can be made into various daily necessities, clothing, toys, decorations, baby carriages or various signs and patterns coated on interior and exterior walls, highway signs and buildings, etc., which will show colors under light Rich and bright patterns or patterns can beautify people's life and environment; it can be made into transparent plastic film, pasted or embedded on automobile glass or window glass, and the color will change immediately when exposed to sunlight, so...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J5/18C08L63/00C08L77/00C08K3/22C09K9/02
Inventor 李垚王艺张盼盼豆书亮童仲秋赵九蓬
Owner HARBIN INST OF TECH
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