木质素纳米颗粒稳定的Pickering乳液及其在异丙甲草胺除草中的应用

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关键词：木质素；纳米颗粒；Pickering乳液；农药缓释中图分类号：TS79 文献标识码：A DOI： 10.11980/j.issn.0254-508X.2025.11.002

Preparation of Pickering Emulsion Stabilized byLignin Nanoparticles and Their Application in MetolachlorHerbicidal

ZHANG Jitong WANG Lina MA Lan GUO Yanzhu* （ColegeofLighIdustryndChemicalEnginering，LioingProinceKeyLbofaperndPulEngineeringKeyLabfHghVlue UtlizationofBotanicalResourcesofhinaLightIdustryDalianKeyLabofHighValueApplicationandDevelopmentofotanical Resources，Dalian Polytechnic University，Dalian，Liaoning Province，） （ ∗ E-mail：guoyz@dlpu.edu.cn）

Abstract：Lignin/DBcompositenanoparticles（S-LNPs）withaparticlesizeof（470416.55）mwerebtainedbyomplexingligin nanoparticles（LNPs）derivedfromsulfate ligninandsodiumdodecylbenzenesulfonate（SDBS）viatheantisolvent method.ThePickering emulsions （S-PEs）loadedwithetolachlorwerepreparedusingS-LNsassabilier.TeefectsofthedosageofSDB，teolteatio andthedosagofmetolachloronthemorphologandsizeofteS-PEsdropletwereinvestigated.TheresultsshowedthatwhentheSDBSaddition amount was 2.5% （mass fraction relative to the S-LNPs suspension），the oil-water ratio was 3：7 ，and the amount of metolachlor was 1.0% （mass fraction relative to the oil phase），a relatively stable S-PEs with an average particle size of about 10.54μm was obtained.The metolachlorcodiitdceraisustaid-releaeandgtdegdatioesistaceproptisecotactgleofSsothlf surface was 56.35∘ ，and the leaf surface residue quantity was 58.13g/cm2 . Compared with the traditional drug-carrying emulsion stabled by SDBS，S-PEs exhibited more superior herbicidal effect.

Key words：lignin；nanoparticles；Pickering emulsion；pesticide release

固体颗粒可作为Pickering乳液的稳定剂，通过其在油水界面的吸附改善乳液性能。（剩余12553字）