Supercharge Your Innovation With Domain-Expert AI Agents!

Preparation method of thermochromic capsule

A thermochromic capsule and thermochromic technology, applied in the direction of microcapsule preparation, microsphere preparation, color-changing fluorescent materials, etc., can solve the problem of not being able to observe the color, achieve high afterglow intensity, complete crystal form, and simplify the preparation process Effect

Pending Publication Date: 2021-03-12
TIANJIN POLYTECHNIC UNIV
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing thermochromic capsules can only show their differential discoloration effects in a bright environment, and no color can be observed in a dark environment

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) heating and dissolving 100 g of myristyl alcohol, 0.1 g of 2-anilino-3-methyl-6-diethylfluorane and 0.1 g of bisphenol A until clarified to obtain a core material A;

[0025] (2) Warm up the aqueous solution containing sodium polyacrylate to 60°C to prepare continuous phase B;

[0026] (3) Using ZIF-8 as a template, Cr will be prepared by template method 3+ Doped zinc gallate long-lasting nanoparticles, the heat treatment temperature is 600°C, and the heat treatment time is 2h, and the obtained long-lasting nanoparticles are added to the melamine prepolymer and mixed uniformly to prepare the shell prepolymer C;

[0027] (4) Slowly add the core material A to the continuous phase B, after mechanical or ultrasonic emulsification to obtain an oil-in-water emulsion, slowly add the melamine prepolymer C, and react at a constant temperature of 60°C for 5 hours, then suction filter , washing and drying to prepare thermochromic capsules.

Embodiment 2

[0029] (1) heating and dissolving 200 g of stearyl alcohol, 10 g of 2-anilino-3-methyl-6-diethylfluorane, and 20 g of bisphenol F until clarification, to obtain core material A;

[0030] (2) The aqueous solution containing the sodium salt of styrene-maleic anhydride copolymer was raised to 70° C. to obtain the continuous phase B;

[0031] (3) TIF-5 will be used as a template to prepare Mn by template method 2+ Doped zinc gallogenate long afterglow nanoparticles, the heat treatment temperature is 900°C, and the heat treatment time is 3h, the obtained long afterglow nanoparticles are added to the melamine prepolymer and mixed uniformly to prepare the shell prepolymer C;

[0032] (4) Slowly add the core material A to the continuous phase B, after mechanical or ultrasonic emulsification to obtain an oil-in-water emulsion, slowly add the melamine prepolymer C, and react at a constant temperature of 70°C for 3 hours, then suction filter , washing and drying to prepare thermochromic...

Embodiment 3

[0034] (1) 1000g of methyl stearate, 40g of 3,3-bis(N-octyl-2-methylindole) phthalide, and 80g of bisphenol S were heated and dissolved until clarified, and prepared Get core material A;

[0035] (2) heating the aqueous solution containing sodium dodecylbenzenesulfonate to 80° C. to obtain the continuous phase B;

[0036] (3) Using ZIF-20 as a template, Pr 3+ Doped zinc gallate long-lasting nanoparticles, the heat treatment temperature is 1000°C, and the heat treatment time is 1h, and the obtained long-lasting nanoparticles are added to the urea-formaldehyde prepolymer and mixed evenly to prepare the shell prepolymer C;

[0037] (4) Slowly add the core material A to the continuous phase B, after mechanical or ultrasonic emulsification to obtain an oil-in-water emulsion, slowly add the urea-formaldehyde prepolymer C, and react at a constant temperature of 80°C for 2 hours, then suction filter, After washing and drying, thermochromic capsules are obtained.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a preparation method of a thermochromic capsule. The capsule comprises a shell layer containing long afterglow nanoparticles, and a core material composed of a thermochromic dye, a thermochromic color developing agent and a phase change energy storage material. The long afterglow nanoparticles are prepared by adopting a template method, the preparation process is simple, and the particle size is uniform. The capsule disclosed by the invention not only has the functions of visualizing temperature indication and storing energy and regulating temperature, but also has good afterglow luminescence capability in a dark environment, and has a wide application prospect in the field of textile and clothing.

Description

technical field [0001] The invention relates to the field of capsules, in particular to a method for preparing thermochromic capsules. Background technique [0002] Thermochromic materials refer to materials whose color changes visually as the ambient temperature changes, and can be divided into three categories: organic, inorganic and liquid crystal. Inorganic thermochromic materials have a high discoloration temperature, which limits their application range, and liquid crystal thermochromic materials require high preparation, which is not conducive to wide application. [0003] Although organic thermochromic materials are widely used, they have disadvantages such as poor environmental adaptability, poor thermal stability, and resistance to acids, alkalis, and solvents. Using capsule coating technology, the phase change material dissolved in organic thermochromic material is used as the capsule core, and the polymer material is used as the capsule wall to prepare the therm...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B01J13/02C09K11/62C09K11/66C09K9/02B82Y20/00B82Y30/00B82Y40/00
CPCB01J13/02B82Y20/00B82Y30/00B82Y40/00C09K9/02C09K11/662C09K11/682C09K11/7702C09K11/7708
Inventor 王瑀李伟
Owner TIANJIN POLYTECHNIC UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com