Natural composite wall material micro/nano capsule suspension and preparation and use methods thereof

The invention discloses a natural composite wall material micro/nano capsule suspension and a preparation and use method thereof, the preparation of an emulsion template and the assembly construction and curing of a micro/nano capsule are sequentially realized through self-assembly, complex coacervation and in-situ crosslinking methods under a Pickering system, and finally a multi-layer functional structure is formed. The method is simple, convenient and environment-friendly in process, low in equipment requirement, adjustable in micro/nano capsule size, high in technical universality and easy to industrialize. The prepared micro/nano capsule can realize multiple functions of long-acting pathogenic microorganism inhibition resistance, inflammation resistance, soothing, moisturizing, sunscreen and the like, has a good controlled release effect, is stable in property, and can be stored for more than one year. After high-pressure spraying below 0.8 mPa, the morphology is basically unchanged, the breakage rate is