A kind of irreversible thermosensitive color-changing adhesive and preparation method thereof

Abstract

The invention provides an irreversible heat-sensitive color-changing adhesive, which contains heat-sensitive color-changing microcapsules with a particle size of 5-10 μm, and the heat-sensitive color-changing microcapsules include the following raw materials in parts by weight: wall material 15-40 parts, 10-20 parts of fluorane, 30-60 parts of solvent, 0.04-0.2 parts of emulsifier, 5-10 parts of capsule curing agent. Wherein, the wall material of the heat-sensitive color-changing microcapsules is a combination of one or two of bisphenol-type epoxy resin and epoxy-based POSS, and the epoxy-based POSS is a compound represented by structural formula I and / or a compound represented by structural formula II. shows the compound.

Description

A kind of irreversible thermochromic adhesive and preparation method thereof technical field The invention belongs to the technical field of thermochromic intelligent material preparation, be specifically related to a kind of control change by material phase change. Color-reactive irreversible thermochromic materials. Background technique Thermochromic material is a kind of intelligent material that shows different colors due to temperature change, and is widely used in industrial, Medical, anti-counterfeiting, clothing and daily decoration and other fields. Thermochromic materials are thermochromic, that is, certain substances can be Color changes at ambient temperature due to structural changes. At the end of the 20th century, thermosensitive materials developed rapidly, and existing thermochromic materials were divided into reversible thermochromic materials. and irreversible thermochromic materials. Among them, among the irreversible thermochromic materials o...

AI Technical Summary

Problems solved by technology

Although this heat-sensitive double microcapsule has a significant effect on the long-term effective preservation of materials, the preparation cost is very high, and it may be used in some high-end medical materials. For conventional materials such as coatings and inks, the preparation cost is obviously too high

More importantly, after adding microcapsules, it is necessary to consider factors such as dispersion uniformity and whether the system is stable and dispersed.

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