In the present study, for the first time, the separation of isopropylbenzene as a volatile organic compound (VOC) from water was investigated through the pervaporation (PV) process. Polyvinylidene fluoride (PVDF), polydimethylsiloxane (PDMS), polyether block amide (PEBA), and ethylene-propylene-diene monomer (EPDM) polymers were utilized in the preparation of PV membranes, and their performance and properties were compared. With respect to the results, the PVDF membranes had the highest PV separation index (PSI) equal to 66,486.6 g/m²h. In addition, this membrane had the highest Young's modulus and tensile strength, together with a low swelling degree. However, it had the lowest water contact angle and thus, was further modified. For this purpose, for the first time, Span 85 was used as an additive in the structure of PV membranes. The membrane characterizations implied the increased hydrophobicity and decreased swelling of the PVDF/Span 85 membrane in comparison with the pure PVDF membrane. The PV results revealed that the addition of 2 wt% Span 85 to the PVDF membrane was followed by an improvement in the separation factor so that it resulted in increased PSI (105,761.9 g/m²h).

在本研究中，这是首次通过全蒸发（PV）过程研究了从水中分离出作为挥发性有机化合物（VOC）的异丙苯的方法。聚偏二氟乙烯（PVDF），聚二甲基硅氧烷（PDMS），聚醚嵌段酰胺（PEBA）和乙烯-丙烯-二烯单体（EPDM）聚合物用于制备PV膜，并对其性能和性能进行了比较。关于结果，PVDF膜的最高PV分离指数（PSI）等于66,486.6 g / m ²H。另外，该膜具有最高的杨氏模量和拉伸强度，并且具有低的溶胀度。然而，它具有最低的水接触角，因此被进一步修改。为此，首次将Span 85用作PV膜结构中的添加剂。与纯PVDF膜相比，该膜的特性暗示了PVDF / Span 85膜的疏水性增加和溶胀降低。PV结果表明，向PVDF膜中添加2 wt％Span 85之后，分离因子得到改善，从而导致PSI增加（105,761.9 g / m ² h）。