Continuous rotary membrane emulsification for the production of sustainable Pickering emulsions
Continuous rotary membrane emulsification for the production of sustainable Pickering emulsions
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DOI：
10.1016/j.ces.2021.117328
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发表时间：
2021-12
影响因子：
4.7
通讯作者：
E. Ekanem;Amy Wilson;J. Scott;K. Edler;D. Mattia
中科院分区：
文献类型：
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作者：
E. Ekanem;Amy Wilson;J. Scott;K. Edler;D. Mattia
本文首次提出了一种连续旋转膜乳化(CRME)系统，该系统允许液滴生成与连续相(CP)流量的分离。与传统的横流和旋转膜乳化工艺相比，去偶联工艺具有更高的生产率和更好的控制能力。实验设计(DOE)研究了Pickering乳液对CP流量、膜转速和乳液组成的影响，Pickering乳液由1wt%的角蛋白溶液和不同浓度的氧化纤维素纳米纤维组成。实验表明，CP流量在很宽的范围内(在78到241µm之间)对液滴直径的影响可以忽略不计，对于最佳的膜转速和不同的氧化纤维素纳米纤维(OCNF)浓度，均匀指数低至0.14。cRME有可能克服连续膜乳化系统的低乳化浓度限制，为显著提高生产率和在个人护理、食品和制药行业的应用铺平道路。
A continuous rotary membrane emulsification (cRME) system, allowing the decoupling of droplet generation from continuous phase (CP) flowrate, is presented here for the first time. The decoupling results in higher productivity and greater control compared to traditional crossflow and rotational membrane emulsification processes. A design of experiment (DoE) investigated the influence on droplet formation of CP flow, membrane rotational speed and emulsion composition, using a Pickering emulsion consisting of 1 wt% keratin solution and varying concentrations of oxidised cellulose nanofibrils. Experiments showed that CP flowrate had a negligible effect on droplet diameters in a wide range (between 78 and 241 µm), with uniformity index as low as 0.14 for optimal membrane rotational speeds and different oxidised cellulose nanofibrils (OCNF) concentration.cRME has the potential to overcome low emulsion concentration limitations of continuous membrane emulsification systems, paving the way to significantly increase the productivity and application in personal care, food and drugs industries.