Acrylate-based polydiacetylene thermochromic material, and preparation method and application thereof

A thermochromic material, acrylate-based technology, applied in the direction of additive processing, etc., can solve the problems of secondary pollution, adverse effects on material performance, etc., achieve the effect of convenient storage, elimination of adverse effects, and expansion of application potential

Active Publication Date: 2019-12-17
ANHUI NORMAL UNIV
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an acrylate-based polydiacetylene thermochromic material and its preparation method and application, which solves the problem that traditional polydiacetylene thermally

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Acrylate-based polydiacetylene thermochromic material, and preparation method and application thereof
  • Acrylate-based polydiacetylene thermochromic material, and preparation method and application thereof
  • Acrylate-based polydiacetylene thermochromic material, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0019] The invention provides a method for preparing an acrylate-based polydiacetylene thermochromic material, the preparation method comprising:

[0020] (1) In a light-proof environment, the photoinitiator Irgacure 369, trimethylolpropane triacrylate and 10,12-pentacosadiynoic acid are mixed to obtain an emulsion;

[0021] (2) sequentially irradiating the emulsion with LED light and ultraviolet light to obtain an acrylate-based polydiacetylene thermochromic material.

[0022] In a preferred embodiment of the present invention, in order to improve material performance and response sensitivity, photoinitiator Irgacure 369 and trimethylolpropane triacrylate are mixed for the first time to obtain a colorless liquid. In the light environment, 10,12-pentacosadiynoic acid was added, and an emulsion was obtained after the second mixing.

[0023] In a preferred embodiment of the present invention, in order to improve material performance and response sensitivity, relative to 2g of t...

Example Embodiment

[0035] Example 1

[0036] First mix the photoinitiator Irgacure 369 and trimethylolpropane triacrylate (using mechanical stirring, the stirring time is 3min) to obtain a colorless liquid, then add 10,12- Pentacosadiynoic acid, mixed for the second time (including ultrasonic dispersion for 5 minutes, followed by mechanical stirring for 5 minutes.) to obtain emulsion; sequentially use 405nm LED light (irradiation 2min, light intensity is 110mW / cm 2 ) and 254nm ultraviolet light irradiation (irradiation 5min, light intensity is 15W / cm 2 ) above-mentioned emulsion, obtains acrylate-based polydiacetylene thermochromic material; Relative to the trimethylolpropane trimethacrylate of 2g, the consumption of photoinitiator Irgacure 369 is 1mg, 10,12-pentacoke The dosage of diynoic acid is 0.1 g. The structure diagram of raw material photoinitiator Irgacure 369, trimethylolpropane triacrylate (TMPTA) and 10,12-pentacosadiynoic acid (PCDA) is as follows figure 1 As shown, the three arm...

Example Embodiment

[0037] Example 2

[0038] First mix the photoinitiator Irgacure 369 and trimethylolpropane triacrylate (using mechanical stirring, the stirring time is 2min) to obtain a colorless liquid, then add 10,12- Pentacosadiynoic acid, mixed for the second time (including ultrasonic dispersion for 4min, followed by mechanical stirring for 4min.) to obtain emulsion; sequentially use 405nmLED light (irradiation 1.5min, light intensity is 105mW / cm 2 ) and 254nm ultraviolet light irradiation (irradiation 4min, light intensity is 10W / cm 2 ) above-mentioned emulsion, obtains acrylate-based polydiacetylene thermochromic material; Relative to the trimethylolpropane trimethacrylate of 2g, the consumption of photoinitiator Irgacure 369 is 2mg, 10,12-pentacactyl The dosage of diynoic acid is 0.2 g.

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 discloses an acrylate-based polydiacetylene thermochromic material and a preparation method and application thereof. The preparation method comprises the following steps: (1) mixing thephotoinitiator Irgacure 369, trimethylolpropane triacrylate (TMPTA) and 10,12-pentacosadiynoicacid acid (PCDA) in a dark environment to obtain an emulsion; and (2) irradiating the emulsion with LED light and ultraviolet light in sequence to obtain the acrylate-based polydiacetylene thermochromic material. The preparation method overcomes the problems that a traditional polydiacetylene thermal response composite material needs a volatile organic solvent, and the volatile organic solvent may have multiple adverse effects on the performance of the material and easily causes secondary pollution.

Description

technical field [0001] The invention relates to the field of heat-responsive composite materials, in particular to an acrylate-based polydiacetylene thermochromic material and its preparation method and application. Background technique [0002] As an important class of conjugated polymer materials, polydiacetylene responds to color change (usually from blue to red) and fluorescence enhancement (from no fluorescence to red) due to significant environmental stimuli (pH, heat, organic solvents, stress, etc.) It has aroused extensive research interest and has been prepared into a variety of different forms, including vesicles, films, liquid crystals, electrospun fibers, etc. However, in most cases, volatile organic solvents are required in the preparation process, which does not conform to the development concept of green chemistry, thus limiting its further in-depth research. 3D printing technology constructs a three-dimensional structure by layer-by-layer printing, and has a...

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): C08F222/14C08F238/00C08F2/48B33Y70/00
CPCB33Y70/00C08F2/48C08F222/1006
Inventor 许洋洋刘飞杨丁招福宇海银
Owner ANHUI NORMAL UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap