A system of polyurethane (PU) and polyacrylonitrile (PAN) with a polymer composition of 60:40 electrospun nanofibrous web has been developed as barriers to pesticides liquid (Dimethoate) penetration in protective clothing systems for agricultural workers. Barrier performance of different polymer compositions of PU and PAN layered systems has been evaluated with different areal densities of electrospun web ranging from 0.5 to 3 g/m². This was done to improve the barrier performance of a nanofiber against a pesticide liquid. In this process, an ultra-thin layer of PU and PAN has been taken in the ratio of 60:40 and its top it is coated with polyvinylidene fluoride (PVDF). Application of PU and PAN web with PVDF and PU has significantly improved its effectiveness which has been measured when accessing the overall comfort performance of a nanofiber which includes parameters like air permeability and water vapor transmission within a layered system. Further, it is observed that the electrospun areal density has been altered due to the effect of air permeability and because of the penetration of the pesticide liquid. On other hand, the polymer compositions also affect the air permeability and rate of penetration of pesticides. It was observed that the electrospun web area has a massive impact on a web area density which reduces a pore size distribution when web area increases. Increasing the percentage of polyacrylonitrile with thermoplastic polyurethane the penetration is reduced without affecting the moisture vapor transition and which had a significant effect on air permeability. Hence PU and PAN along with PVDF nanofibrous mat have a prospective application in agro-textile industries.

聚氨酯 (PU) 和聚丙烯腈 (PAN) 的聚合物组成为 60:40 电纺纳米纤维网的系统已被开发作为农业工人防护服系统中农药液体（乐果）渗透的屏障。PU 和 PAN 层状系统的不同聚合物组合物的阻隔性能已在电纺纤维网的不同面密度范围为 0.5 至 3 g/m ^{2 的情况下}进行了评估. 这样做是为了提高纳米纤维对农药液体的阻隔性能。在这个过程中，以60:40的比例采用了PU和PAN的超薄层，并在其顶部涂上了聚偏二氟乙烯（PVDF）。PU 和 PAN 网与 PVDF 和 PU 的应用显着提高了其有效性，这是在访问纳米纤维的整体舒适性能时测量的，包括分层系统内的透气性和水蒸气传输等参数。此外，据观察，由于透气性的影响和农药液体的渗透，静电纺丝面密度发生了变化。另一方面，聚合物组合物也影响农药的透气性和渗透率。据观察，静电纺丝网面积对网面积密度有很大影响，当网面积增加时，这会降低孔径分布。增加聚丙烯腈与热塑性聚氨酯的百分比，会降低渗透率，而不会影响水蒸气的转变，这对透气性有显着影响。因此，PU 和 PAN 以及 PVDF 纳米纤维垫在农用纺织品行业具有潜在应用。