Studies on the capillary wetting kinetics of fiber assemblies by the electronics techniques

电子技术研究纤维组件的毛细管润湿动力学

• 批准号: 60580056
• 负责人: TAGAYA Hisako
• 金额: $ 1.34万
• 依托单位: Shiga University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1985
• 资助国家: 日本
• 起止时间: 1985 至 1986
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-60580056/
• 关键词: Capillary Penomena; Rate of Capillary Penetration; Electric Capacitance Method; 電気容量法によるぬれ測定

A new apparatus has been designed which gives an accurate measurement of the rate and height of capillary rise of water in a porous material, such as fabrics, from the initial moment of contact with water.When two parallel plate electrodes are immersed in water, the increase of capacitance across the twin electrodes is directly proportional the height of water between the electrodes. The circuit was used to detect the level of water contained in a vertical strip of fabric put between twin parallel plate electrodes and to give a good linear relation btween capacitance and water level. One of twin electrodes is a thin stainless steel plate and the other tinned wire coil mounted on glass plate, which are coated with Teflon film to keep a good insulation.The progress of liquid rise in a fabric, thus the increase of capacitance is recorded automatically from the first moment of contact with the liqid. Such a water level-capacitance conversion method has a very quick response, and so we can obtain a real time record of the movement of water. An attempt has been made to analayze the rate of capillary phenomena by using Washburn equation,from the accurate results obtained.

设计了一种新的装置，它能精确测量水在多孔材料（如织物）中从与水接触的初始时刻起的毛细上升速率和高度，当两个平行板电极浸入水中时，双电极上电容的增加与电极间水的高度成正比。该电路用于检测置于双平行板电极之间的垂直织物条中的水位，并给出电容与水位之间良好的线性关系。双电极中的一个是不锈钢薄板，另一个装在玻璃板上，涂有聚四氟乙烯薄膜，以保持良好的绝缘性。液体在织物中上升的过程，从而电容的增加从与液体接触的第一时刻起自动记录。这种水位-电容转换方法具有非常快的响应，因此我们可以获得水运动的真实的时间记录。本文尝试用Washburn方程来分析毛细现象的速率，得到了较准确的结果。

项目成果

Tagaya, Hisako: Kenpaku Inc."Clothing Science", Chapter 3 and Chapter 6, 250 (1987)

田谷久子：Kenpaku Inc.《服装科学》，第 3 章和第 6 章，250 (1987)

多賀谷久子: "「被服学¨第3章被服材料(被服材料の吸水性)第6章被服管理(洗剤による布の浸透性)" 建帛社,筑紫義男, 250 (1987)

田谷久子：“服装学第3章服装材料（服装材料的吸水性）第6章服装管理（洗涤剂对织物的渗透性）” Kenpakusha，Yoshio Tsukushi，250（1987）

多賀谷久子: 繊維学会誌. 43(No.8). (1987)

田谷久子：日本纤维学会杂志 43（第 8 期）（1987 年）。

Tagaya, Hisako: "Measurement of Capillary Rise in Fabrics Capacitance Method" Journal of Colloid and Interface Science. (1987)

Tagaya，Hisako：“织物电容法中毛细管上升的测量”胶体与界面科学杂志。

Tagaya,Hisako: Journal of Colloid and Interface Science. (1987)

Tagaya，Hisako：胶体与界面科学杂志。