Simulation-based finishing of barrier fabrics by means of partial particle application

通过部分颗粒应用对阻隔织物进行模拟整理

基本信息

批准号：
202243774
负责人：
Professor Dr.-Ing. Chokri Cherif
金额：
--
依托单位：
Institut für Textilmaschinen und Textile Hochleistungswerkstofftechnik
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2011
资助国家：
德国
起止时间：
2010-12-31 至 2017-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/202243774?language=en
关键词：
Simulation based finishing barrier fabrics

项目摘要

High density woven barrier fabrics for filtration and surgical textiles feature permeable pore channels between yarn interlocking points. These pore channels can be reduced in size by high-density weaving. This however has a negative effect on the functional properties. Therefore the aim of this research project is to develop a novel, fluid-tight and particle-tight woven fabric with adjustable porosity without impairing the physiological properties. This research aim could be realized by the targeted and partial application of cross-linkable, functionalized micro particles. In the first project stage a novel method based on the cross-flow filtration technique was successfully developed for the manufacturing of fluid-tight multifilament woven fabrics for use as filter media and surgical reusable textiles, which contain good wearing comfort. In order to minimize the experimental efforts, the necessary simulation of particle deposition on or in meso pores of woven fabric was carried out. Based on the promising results of the first project stage, fluid-tight polyester microfilament woven fabrics with predefined porosity are to be developed by using particles of various sizes in the single-digit micro range. A customized surface functionalization of woven fabrics will be employed in order to guarantee a permanent particle bonding onto the fibre surface (meso range) under complex quasi-practical stress (e. g. combined bending/pressure, biaxial tensile and shear load). Furthermore these woven fabrics should be fulfilling the requirements for filter media. For these purposes, a continuous virtual simulation chain will be developed and validated regarding to the relevant process parameters. A FEM fabric-model has to be created which displays the pore morphology, dependant on material, structure and weaving parameters. To determine the particle size and process parameters the particle disposition will be simulated by means of the fabric model. The change of pore morphology and the particle behaviour under quasi-practical stress will be analysed by means of a combined fabric-particle-model. Another aim is to establish the pre-conditions for a continuous simulation of the interactions of particles with the fabric surface which take place during cross-flow filtration. In addition, the structure-deformation of particle finished woven fabrics, especially in the meso pores, has to be recorded under quasi-practical diaphragm loads, in order to offer a possibility to validate the numeric simulation. The stability of particle bonding onto the fibre surface by means of amino functionalization should be also investigated. Furthermore the application of gas-phase fluorination for permanent hydrophobic treatment and simultaneous oleophobic treatment of particle finished woven fabrics has to be analysed.

用于过滤和手术纺织品的高密度机织阻隔织物在纱线互锁点之间具有可渗透的孔通道。这些孔道可以通过高密度编织来减小尺寸。然而，这对功能特性有负面影响。因此，该研究项目的目的是开发一种新型的、不透流体和不颗粒的机织织物，其孔隙率可调节，且不损害生理特性。这一研究目标可以通过可交联、功能化微粒的针对性和局部应用来实现。在项目的第一阶段，成功开发了一种基于错流过滤技术的新方法，用于制造用作过滤介质和外科可重复使用的纺织品的不透流体的复丝机织织物，其具有良好的穿着舒适性。为了最大限度地减少实验工作，对机织织物的中孔上或中的颗粒沉积进行了必要的模拟。基于项目第一阶段的可喜成果，将通过使用个位数微米范围内的各种尺寸的颗粒来开发具有预定孔隙率的不透流体的聚酯微丝机织织物。将采用机织织物的定制表面功能化，以保证在复杂的准实际应力（例如组合弯曲/压力、双轴拉伸和剪切载荷）下将永久颗粒粘合到纤维表面（中观范围）。此外，这些机织织物应满足过滤介质的要求。为此，将针对相关工艺参数开发和验证连续的虚拟模拟链。必须创建一个 FEM 织物模型，根据材料、结构和编织参数来显示孔隙形态。为了确定颗粒尺寸和工艺参数，将通过织物模型模拟颗粒分布。将通过组合的织物-颗粒-模型来分析准实际应力下孔隙形态的变化和颗粒行为。另一个目标是建立连续模拟错流过滤过程中颗粒与织物表面相互作用的前提条件。此外，必须在准实际隔膜载荷下记录颗粒整理机织物的结构变形，尤其是中孔中的结构变形，以便为验证数值模拟提供可能性。还应研究通过氨基官能化将颗粒粘合到纤维表面上的稳定性。此外，还必须分析气相氟化在颗粒整理机织物的永久疏水处理和同步疏油处理中的应用。

项目成果

期刊论文数量（5）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Numerical micro-scale modelling of the mechanical loading of woven fabrics equipped with particles

带有颗粒的机织物机械载荷的数值微尺度建模

DOI：
10.1088/1757-899x/460/1/012006
发表时间：
2018
期刊：
IOP Conference Series: Materials Science and Engineering
影响因子：
0
作者：
Gereke T;Döbrich O;Malik S. A;Kocaman R. T;Aibibu D;Hund D;Schmidt K;Antonyuk S;Ripperger S;Cherif Ch.
通讯作者：
Cherif Ch.

New Method for In-situ Measurement of Pore Size Deformation of Barrier Textiles under Biaxial Loading

双轴加载下阻隔织物孔径变形原位测量新方法