Preparation method and application of phase change-infrared stealth difunctional composite microcapsule

A composite microcapsule, dual-function technology, applied in applications, chemical instruments and methods, special coats, etc., can solve the problems of low emissivity infrared stealth coatings, easy to be oxidized and corroded, and the stealth effect is not strong, and achieve stealth effect. Good, eliminates adverse effects, and has a long-lasting effect

Active Publication Date: 2020-05-29
CHINA UNIV OF GEOSCIENCES (BEIJING)
View PDF14 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current research, infrared stealth coatings with low emissivity are widely used, but the infrared stealth coatings whose basic approach is to control the infrared emissivity have poor tolerance to the surrounding complex environment, the stealth effect is not strong, and it is easy to be detected. Oxidation and

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
  • Preparation method and application of phase change-infrared stealth difunctional composite microcapsule
  • Preparation method and application of phase change-infrared stealth difunctional composite microcapsule
  • Preparation method and application of phase change-infrared stealth difunctional composite microcapsule

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0031] Example 1

[0032] (1) Dissolve 4.00g stearic acid, 0.12g sodium dodecylbenzene sulfonate and 1.48g calcium chloride in 100ml deionized water, stir at 70°C with a magnetic stirrer for 60min to obtain component A;

[0033] (2) Dissolve 1.41g of sodium carbonate in 20ml of deionized water and stir for 10min at room temperature to obtain component B;

[0034] (3) Add 0.04 g of nano iron powder to the component B described in step (2), and use an ultrasonic instrument to ultrasonically disperse for 120 minutes to obtain component C;

[0035] (4) The component C obtained in step (3) is slowly added dropwise to the component A described in step (1), and a magnetic stirrer is used for constant temperature stirring at 70° C. for 120 minutes to obtain a microcapsule liquid;

[0036] (5) After standing for 12 hours, filter the microcapsule liquid, and wash the filter residue with absolute ethanol and deionized water three times each, and finally dry in a drying box at 60°C for 12 hours to ...

Example Embodiment

[0037] Example 2

[0038] (1) Dissolve 4.00g stearic acid, 0.12g sodium dodecylbenzene sulfonate and 1.48g calcium chloride in 100ml deionized water, stir at 70°C with a magnetic stirrer for 60min to obtain component A;

[0039] (2) Dissolve 1.41g of sodium carbonate in 20ml of deionized water and stir for 10min at room temperature to obtain component B;

[0040] (3) Add 0.12 g of nano iron powder to the component B described in step (2), and use an ultrasonic instrument to ultrasonically disperse for 120 minutes to obtain component C;

[0041] (4) The component C obtained in step (3) is slowly added dropwise to the component A described in step (1), and a magnetic stirrer is used for constant temperature stirring at 70° C. for 120 minutes to obtain a microcapsule liquid;

[0042] (5) After standing for 12 hours, filter the microcapsule liquid, and wash the filter residue with absolute ethanol and deionized water three times each, and finally dry in a drying box at 60°C for 12 hours to ...

Example Embodiment

[0043] Example 3

[0044] (1) Dissolve 4.00g stearic acid, 0.12g sodium dodecylbenzene sulfonate and 1.48g calcium chloride in 100ml deionized water, stir at 70°C with a magnetic stirrer for 60min to obtain component A;

[0045] (2) Dissolve 1.41g of sodium carbonate in 20ml of deionized water and stir for 10min at room temperature to obtain component B;

[0046] (3) Add 0.20 g of nano iron powder to the component B described in step (2), and use an ultrasonic instrument to ultrasonically disperse for 120 minutes to obtain component C;

[0047] (4) The component C obtained in step (3) is slowly added dropwise to the component A described in step (1), and a magnetic stirrer is used for constant temperature stirring at 70° C. for 120 minutes to obtain a microcapsule liquid;

[0048] (5) After standing for 12 hours, filter the microcapsule liquid, and wash the filter residue with absolute ethanol and deionized water three times each, and finally dry in a drying box at 60°C for 12 hours to ...

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

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Phase transition temperatureaaaaaaaaaa
Login to view more

Abstract

The invention discloses a preparation method and application of a composite microcapsule phase change material with double functions of heat storage, temperature control and infrared stealth. Stearicacid is mainly used as a core material, calcium carbonate is used as a wall material, a nano ferromagnetic material is doped at the same time, and the difunctional composite microcapsule phase changematerial with a core-shell structure is prepared by adopting an in-situ polymerization method, the difunctional composite microcapsule phase change material is processed into an interlayer, a hollow part of clothes is coated with the interlayer by adopting a coating treatment mode, and a heat storage and temperature control-infrared stealth nocturnal clothing. For more simply illustrating, the interior of a mask is coated with the composite microcapsule phase change material, and the infrared stealth performance of a mask person-wearing area and other areas is tested and compared.

Description

technical field [0001] The invention relates to the technical field of preparation of phase change microcapsules, in particular to a preparation method and application of a phase change-infrared stealth dual-function composite microcapsule phase change material. Background technique [0002] Due to the universality of infrared radiation of objects and the difference between target and background infrared radiation, thermal infrared detection plays an increasingly important role in modern military reconnaissance, which seriously threatens the survivability of some military targets. Thermal infrared stealth materials can reduce the difference in infrared radiation intensity between the target and the background to the extent that thermal infrared detectors cannot recognize it, so as to achieve the purpose of relative stealth. Therefore, the thermal infrared stealth technology for the purpose of reducing the surface radiation intensity of objects has attracted great attention f...

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): C09K5/06A41D13/005A41D31/04
CPCA41D13/005A41D31/04C09K5/063
Inventor 柯伟东吴秀文张金林
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)
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