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| Preparation of Pickering Emulsion Stabilized by Lignin Nanoparticles and Their Application in Metolachlor Herbicidal |
| Received:May 20, 2025 Revised:June 06, 2025 |
| DOI：10.11980/j.issn.0254-508X.2025.11.002 |
| Key Words:lignin nanoparticles Pickering emulsion pesticide release |
| Fund Project:国家自然科学基金项目（22478048）；大连市杰出青年科技人才项目（2023RJ002）；辽宁省教育厅基本科学研究项目（JYTZD2023025）。 |
| Author Name | Affiliation | Postcode | | ZHANG Jitong* | College of Light Industry and Chemical Engineering, Liaoning Province Key Lab of Paper and Pulp Engineering, Key Lab of High Value Utilization of Botanical Resources of China Light Industry, Dalian Key Lab of High Value Application and Development of Botanical Resources, Dalian Polytechnic University, Dalian, Liaoning Province, 116034 | 116034 | | WANG Lina | College of Light Industry and Chemical Engineering, Liaoning Province Key Lab of Paper and Pulp Engineering, Key Lab of High Value Utilization of Botanical Resources of China Light Industry, Dalian Key Lab of High Value Application and Development of Botanical Resources, Dalian Polytechnic University, Dalian, Liaoning Province, 116034 | 116034 | | MA Lan | College of Light Industry and Chemical Engineering, Liaoning Province Key Lab of Paper and Pulp Engineering, Key Lab of High Value Utilization of Botanical Resources of China Light Industry, Dalian Key Lab of High Value Application and Development of Botanical Resources, Dalian Polytechnic University, Dalian, Liaoning Province, 116034 | 116034 | | GUO Yanzhu* | College of Light Industry and Chemical Engineering, Liaoning Province Key Lab of Paper and Pulp Engineering, Key Lab of High Value Utilization of Botanical Resources of China Light Industry, Dalian Key Lab of High Value Application and Development of Botanical Resources, Dalian Polytechnic University, Dalian, Liaoning Province, 116034 | 116034 |
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| Abstract:Lignin/SDBS composite nanoparticles (S-LNPs) with a particle size of (47.04±16.55) nm were obtained by complexing lignin nanoparticles (LNPs) derived from sulfate lignin and sodium dodecylbenzene sulfonate (SDBS) via the antisolvent method. The Pickering emulsions (S-PEs) loaded with metolachlor were prepared using S-LNPs as stabilizer. The effects of the dosage of SDBS， the oil-water ratio and the dosage of metolachlor on the morphology and size of the S-PEs droplet were investigated. The results showed that when the SDBS addition 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 10.54 μm was obtained. The metolachlor contained in it had certain sustained-release and light degradation-resistance properties. The contact angle of S-PEs on the leaf surface was 56.35°， and the leaf surface residue quantity was 58.13 g/cm2. Compared with the traditional drug-carrying emulsion stabled by SDBS， S-PEs exhibited more superior herbicidal effect. |
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