Sustainable Surfactant and Formulation Engineering via Microflow Chemical Pulses

通过微流化学脉冲进行可持续表面活性剂和配方工程

• 批准号: 2661663
• 金额: --
• 依托单位: Imperial College London
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2661663
• 关键词: Sustainable; Surfactant; Formulation; Engineering; via

Dynamic light scattering is a well established technique in the characterisation of transnational diffusion coefficients for a variety of systems including biological structures, colloidal suspensions, and surfactant solutions. However, its shortcomings are evident when carrying out experiments, as samples have to be individually made and loaded into the apparatus.Recent work has been aimed at the development of instrumental setups to carry out light scattering measurements under flow, showing very promising results. Initially, this work aims to build on these studies to develop a similar setup implementing programmable sample injection, a microfluidic formulator, and a light scattering apparatus for inline formulation, mixing, and measurement of model cleaning solutions.Cleaning products are used in everyday lives from hand and dish washing, to laundry detergents. These solutions all utilise surfactant molecules as the surface active component for the removal of oil and fatty substrates from the area of interest, producing microemulsions. Although there has been much work on the physical properties and dynamics of microemulsions, an understanding on how the components in a cleaning product effect the effciency in cleaning, is not very well understood.By coupling rapid formulation and mixing to light scattering measurements, the main aim of this project is to determine the effect of composition and chemical structure of surfactants to their effectiveness in emulsifying oily and fatty solution. Initial results show that the custom light scattering apparatus which will be used for this study is able to reproduce results from commercially available instruments.

动态光散射是一种成熟的技术，可用于表征各种系统（包括生物结构、胶体悬浮液和表面活性剂溶液）的跨国扩散系数。然而，在进行实验时，它的缺点是显而易见的，因为必须单独制作样品并将其加载到设备中。最近的工作旨在开发在流动下进行光散射测量的仪器装置，显示出非常有希望的结果。最初，这项工作旨在以这些研究为基础，开发一种类似的装置，实现可编程样品注射、微流体配方器和光散射装置，用于模型清洁溶液的在线配制、混合和测量。清洁产品在日常生活中的应用从手洗、餐具清洗、洗衣粉。这些解决方案都利用表面活性剂分子作为表面活性成分，从感兴趣的区域去除油和脂肪底物，产生微乳液。尽管对微乳液的物理性质和动力学进行了大量研究，但对清洁产品中的成分如何影响清洁效率的了解还不是很清楚。通过将快速配制和混合与光散射测量相结合，主要该项目的目的是确定表面活性剂的成分和化学结构对其乳化油和脂肪溶液的有效性的影响。初步结果表明，用于本研究的定制光散射装置能够重现市售仪器的结果。