Infrared phase change microcapsule with low emissivity and multiple phase change points and preparation method of infrared phase change microcapsule

Abstract

The invention relates to an infrared phase change microcapsule with low emissivity and multiple phase change points and a preparation method of the infrared phase change microcapsule. An infrared stealthy phase change capsule with the multiple phase change points and the low emissivity is mainly prepared from the following raw materials by a certain proportion: formaldehyde, urea, triethanolamine, polyethylene glycol, dodecyl sodium sulfate, flaky aluminum powder or copper powder, sodium chloride, normal hexane, paraffin, hydrous salt, citric acid and deionized water. The infrared phase change microcapsule disclosed by the invention has the beneficial effects that the defects that a traditional infrared stealthy material only lays emphasis on the low emissivity, has no temperature control ability, and is easy to corrode and oxidize are overcome; the microcapsule prepared by the preparation method disclosed by the invention uses the inorganic hydrous salt and the paraffin as composite core materials; meanwhile, flaky metal powder with the low emissivity is wrapped into a modified urea resin microcapsule to obtain the infrared stealthy phase change capsule with the low emissivity, the multiple phase change points, high temperature control ability and great potential heat value. The infrared stealthy phase change capsule is an infrared stealthy coating material suitable for weapons and equipment such as military building facilities and vehicles.

Description

technical field [0001] The invention belongs to the technical field of phase change microcapsule preparation, in particular to an infrared phase change microcapsule with low emissivity and multiple phase transition points and a preparation method thereof. Background technique [0002] The diversification and comprehensive development of detection technology in modern warfare, the stealth technology of weaponry and military facilities is an urgent need to improve survivability, combat effectiveness and combat effectiveness, especially the application of infrared thermal imaging detection technology in infrared guidance technology, leading to the discovery of military targets is destroyed. The principle of infrared thermal imaging detection method is to capture the thermal infrared image of the target based on the difference in radiation energy between the detection target and the surrounding environment, and the intensity of infrared radiation radiation energy is governed by ...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the drawbacks of existing infrared stealth coatings, the present invention combines low-emissivity flake metal powder with materials with different phase transition points as the core material, embeds them in urea-formaldehyde resin with stable performance and high elasticity, and synthesizes low-emissivity High-efficiency phase-change microcapsules, prepared a low-emissivity, multi-phase-change point infrared phase-change microcapsule coating, not only designed a new low-emissivity, multi-phase-change point infrared phase-change microcapsule system, At the same time, it provides a simple preparation method of infrared stealth phase change microcapsules with simple structure, light weight and excellent performance

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