A method for preparing a high-ultraviolet absorption lignin/chemical sun-screening agent microcapsule using lignin as a wall material, comprising the steps of (1) dissolving 1-20 parts by weight of lignin in 100-200 parts by weight of an aqueous solution with a pH of 12, adjusting the pH of the solution to 7-10, and then removing insoluble substances by filtration to obtain a lignin solution; and (2) mixing 10-50 parts by weight of the lignin solution in step (1) with 1-10 parts by weight of a chemical sun-screening agent, and performing ultrasonic radiation under a power of 200-1500 W for 10 s to 25 min to obtain a lignin/chemical sun-screening agent microcapsule emulsion.
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机译：一种以木质素为壁材制备高紫外线吸收木质素/化学防晒剂微胶囊的方法，其包括以下步骤：（1）将1-20重量份的木质素溶解在100-200重量份的水性溶液中。 pH值为12的溶液，调节pH值为7-10，然后过滤除去不溶物，得到木质素溶液。 （2）将步骤（1）中的木质素溶液10-50重量份与化学防晒剂1-10重量份混合，在200-1500 W的功率下进行超声波辐照10 s 25分钟至25分钟以获得木质素/化学防晒剂微胶囊乳液。
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