Coordination Funds

协调基金

• 批准号: 462226334
• 负责人: Professor Dr.-Ing. Lutz Mädler
• 金额: --
• 依托单位: Fachgebiet Mechanische Verfahrenstechnik
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/462226334?language=en
• 关键词: Coordination; Funds

Mixing of disperse systems (particles and powders) is a traditional unit operation of process engineering which is of central importance in various technological areas. Applications of mixed particulate systems range from processing of food, pharmaceutical and chemical substances to material processing and materials engineering. Functional mixing of different particle types (hetero-aggregation) has the potential of creating outstanding new properties of dispersed products, which depend on the mixture composition and on various secondary process conditions (e.g. agglomeration, coating). In this context, a new product property can emerge from the direct contact of different particles (hetero-contact) and thus by the resulting interface between the respective particular components. Many applications have shown that these hetero-contacts are of fundamental importance for specific functional properties. In most cases the new properties result from the transfer of charges, mass, heat, forces, or moments without the need of a chemical reaction of its components. Thus, the quality of such a particulate mixture is directly linked to the contact points and interfaces of different particles and the details of the interaction between its species in contact. The new property from the contact zone controls the material and product properties of the entire system that is named hetero-contact in the context of SPP 2289. Direct information about hetero-contact quality (e.g. number of contacts, transport properties between different particle types) could therefore be the base for a fundamental description of the new properties of the particle mixture (quality of the mixture and material function). At the same time, the hetero-aggregation process for creating of such hetero-contacts needs to be investigated and controlled.In the first three years of the SPP 2289 the recursive approach is dominant, in which the material system of the hetero-aggregates is adapted to the process measurement technology and the characterization procedures of hetero-aggregates and their populations. Specific emphases are:- on the establishment of aerosol processes for the defined generation of hetero-aggregates, which can also be adapted to process diagnostics for the detection of mixing processes < 1 µm, - the derivation of particulate sampling trains from fast aggregation processes,- the establishment of tomographic methods for the characterization of hetero aggregates with sizes < 1 µm and - their mathematical framework for the description of hetero-aggregates as well as - the establishment of process models and simulations covering mixture lengths < 1 µm.

分散系统（颗粒和粉末）的混合是过程工程的传统单位操作，在各个技术领域至关重要。混合颗粒系统的应用包括食物的加工，药物和化学物质到材料加工和材料工程。不同粒子类型的功能混合（异质 - 聚集）具有创造出色的分散产物的新特性的潜力，这些产品取决于混合物组成和各种二级过程条件（例如，聚集，涂层）。在这种情况下，可以从不同粒子（异质接触）的直接接触中出现新产品属性，因此可以通过相关特定组件之间的所得接口。许多应用表明，这些异质接触对于特定功能特性至关重要。在大多数情况下，新特性是由电荷，质量，热量，力或力矩转移而不需要其成分化学反应的。这就是这种颗粒混合物的质量直接与不同颗粒的接触点和界面以及接触物质之间的相互作用的细节相关联。来自接触区的新属性在SPP 2289的背景下控制整个系统的材料和产品属性。因此，有关异质接触质量的直接信息（例如，接触数量，不同粒子类型之间的传输属性）可能是对粒子混合物的新特性（混合质量和材料功能质量）的基本描述的基础。同时，需要调查和控制创建此类异质接触的异质构造过程。在SPP的头三年2289年，递归方法是主导的，在该方法中，异质 - 聚集物的材料系统适用于过程测量技术和杂物及其种群的特征性过程。特定的重点是： - 关于确定的异质聚集物的气溶胶过程的建立，这也可以适应用于检测混合过程<1 µm的处理诊断， - 衍生出特定的采样列车的衍生列表，从快速聚集过程中衍生出<hetero -s rregization -sragrications -s srerallization -s srerallization -s <Hetero -aggregregiation -s sregralition -s sregription-杂聚集的描述以及 - 建立过程模型和仿真的混合物长度<1 µm。