Evaluation of pore distribution in non-woven fabric sheets
Important analysis items for performance evaluation and quality control of functional materials! Evaluation of pore size and pore distribution of non-woven sheets and membrane materials.
This is an example of evaluating the maximum pore diameter and pore size distribution of non-woven fabric sheets using the bubble point method. The sample is immersed in a chemical solution and air pressure is applied. The pressure is increased until it overcomes the surface tension of the chemical solution absorbed in the sheet, resulting in the appearance of bubbles; this pressure is referred to as the bubble point. The maximum pore diameter can be calculated based on the bubble point pressure and the surface tension of the chemical solution. 【Calculation Formula】 ■d = Cy/P ・d: Maximum pore diameter ・C: Constant ・y: Surface tension of the chemical solution ・P: Differential pressure *For more details, please refer to the PDF document or feel free to contact us.
- 企業：アイテス
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