日用化学工业（中英文）2025，Vol.55Issue(3)：271-278,8.DOI:10.3969/j.issn.2097-2806.2025.03.001
基于两亲性Janus-SiO2颗粒制备高稳定性O/W型Pickering乳液
Preparation of highly stable O/W Pickering emulsion based on amphiphilic Janus-SiO2 particles
摘要
Abstract
Janus-SiO2 nanoparticles were prepared by Pickering emulsion templating method by using 3-(2-aminoethylamino)propyltrimethoxysilane and n-octyl trimethoxysilane.The results of FT-IR,TG,contact angle and Zeta potential confirmed the successful grafting of amino groups and octyl groups onto the surface of SiO2 nanoparticles.Considering the emulsion droplet diameter and emulsification index,the optimal emulsification conditions were obtained at a homogenization intensity of 15000 r/min,Janus-SiO2 nanoparticle mass fraction of 1.0%,and water-to-oil volume ratio of 5∶5.The average droplet diameter of the Pickering emulsion thus obtained was approximately 56.6 μm.The Janus-SiO2 nanoparticles exhibited good emulsification performance,which could stabilize high internal phase emulsion and have low-energy emulsification and broad oil phase universality.The results of stability test demonstrated that the Pickering emulsion prepared remained stable at room temperature for more than two months and maintained stability in the temperature range of 4 to 90℃.The Pickering emulsion could be formed even when the aqueous phase had low or high pH or high mass concentrations of NaCl,indicative of excellent resistance to acid,base and electrolyte.In addition,the viscosity of the emulsion increased with increasing electrolyte mass concentration.The O/W Pickering emulsion stabilized with Janus-SiO2 particles exhibited remarkable stability,which had potential for applications in cleaning of oil stains under high-temperature and high-electrolyte conditions.关键词
Janus-SiO2颗粒/Pickering乳液/高稳定性/耐酸碱性/耐电解质性Key words
Janus-SiO2 particle/Pickering emulsion/high stability/pH-resistant/electrolyte-tolerance分类
化学化工引用本文复制引用
张可可,邹欢金,樊晔,张永民,刘雪锋,方银军..基于两亲性Janus-SiO2颗粒制备高稳定性O/W型Pickering乳液[J].日用化学工业（中英文）,2025,55(3):271-278,8.基金项目
国家自然科学基金资助项目(21606107) （21606107）
赞宇科研基金(2024-9) （2024-9）
江南大学本科教育教学改革研究项目(JG2023041) （JG2023041）
