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Investigation of microscopic particle physical properties on inter-particle forces and mechanistic extension to mesoscale manufacturing

研究粒子间力的微观粒子物理性质以及介观制造的机械扩展

基本信息

批准号：
1958381
负责人：
金额：
--
依托单位：
University of Leeds
依托单位国家：
英国
项目类别：
Studentship
财政年份：
2017
资助国家：
英国
起止时间：
2017 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=studentship-1958381
关键词：
Investigation microscopic particle physical properties

项目摘要

Previous work has shown that developing an understanding of in situ particle-particle forces is a pre-requisite to relate mesoscale bulk behaviour to single particle microscopic interactions. Bulk processing issues relating to phenomena such as rheology, surface coating and milling are ubiquitous throughout business operations relating to Johnson-Matthey (the project industrial sponsor) and the solutions are often arrived at with the addition of extra components to the formulation or a "process bandage". While such an approach has some merit, it does little to improve the appreciation of the underpinning microscopic interactions, resulting in formulations of increasing complexity with ever diminishing understanding. In this regard there is a need to build a fundamental knowledge base understanding how polymers interact with particulates and study the impact of this interaction on bulk properties such as dispersion, flow behaviour and coating performance. Model particulate systems can be synthesized to specific geometries, shapes and sizes that will facilitate the measurement of such particle-particle interactions. These model systems can then be related to Johnson-Matthey relevant systems such as zeolites for Emission Control Technology (cubic), and milled glass particles for Advanced Glass Technology (spherical), in relation to offering insight for improved formulation within the resulting slurries.

先前的工作表明，了解原位粒子间力是将中尺度整体行为与单粒子微观相互作用联系起来的先决条件。与流变、表面涂层和研磨等现象相关的批量加工问题在庄信万丰（项目工业赞助商）相关的业务运营中普遍存在，解决方案通常是通过在配方中添加额外的成分或“工艺绷带”来实现。虽然这种方法有一定的优点，但它对提高对基础微观相互作用的认识作用甚微，导致公式的复杂性不断增加，而理解却不断减少。在这方面，需要建立一个基础知识库，了解聚合物如何与颗粒相互作用，并研究这种相互作用对分散、流动行为和涂层性能等整体性能的影响。模型颗粒系统可以被合成为特定的几何形状、形状和尺寸，这将有助于测量这种颗粒-颗粒相互作用。然后，这些模型系统可以与庄信万丰相关系统相关，例如用于排放控制技术的沸石（立方体）和用于先进玻璃技术的研磨玻璃颗粒（球形），从而为改进所得浆料中的配方提供见解。