Lasenko Inga, Sanchaniya Jaymin Vrajlal, Kanukuntla Sai Pavan, Viluma-Gudmona Arta, Vasilevska Sandra, Vejanand Sanjay Rajni
Institute of Mechanical and Biomedical Engineering, Faculty of Civil and Mechanical Engineering, Riga Technical University, 6B Kipsala Street, LV-1048 Riga, Latvia.
Faculty of Economics and Social Development, Latvia University of Life Sciences and Technologies, 2 Liela Street, LV-3001 Jelgava, Latvia.
Polymers (Basel). 2024 Oct 17;16(20):2920. doi: 10.3390/polym16202920.
The selection of an appropriate fabric for technical applications, such as protective masks, hinges on a thorough understanding of the fabric's physical and mechanical properties. This study addresses the challenge of selecting the optimal material structure for the upper layer of a protective mask, aiming to ensure adequate breathability while providing effective filtration against airborne particles and contaminants. We assessed and compared the physical-mechanical properties of five polymer spun-bond nonwoven fabrics from different suppliers. Our comprehensive evaluation included, as follows: a visual inspection; light permeability analysis; mass and thickness measurements; elongation and tensile strength tests; breathing resistance assessments; and filter penetration tests with paraffin oil. The results revealed significant variations in performance among the samples, with one fabric consistently outperforming the others across multiple parameters. Notably, this top-performing fabric met or exceeded the EN 149:2001+A1:2009 standard for breathing resistance and filtration efficiency and, in combination with additional filter layers, met the requirements or exceeded class FFP2 (filtering face piece). This study underscores the importance of meticulous material selection and quality control in optimizing PPE (personal protective equipment) performance and user safety, providing valuable insights for mask manufacturers and healthcare professionals.
为技术应用（如防护口罩）选择合适的面料，取决于对该面料物理和机械性能的透彻理解。本研究应对了为防护口罩上层选择最佳材料结构的挑战，旨在确保足够的透气性，同时对空气中的颗粒和污染物提供有效的过滤。我们评估并比较了来自不同供应商的五种聚合物纺粘无纺布的物理机械性能。我们的全面评估如下：目视检查；透光率分析；质量和厚度测量；伸长率和拉伸强度测试；呼吸阻力评估；以及用石蜡油进行的过滤穿透测试。结果显示，各样本的性能存在显著差异，有一种面料在多个参数上始终优于其他面料。值得注意的是，这种表现最佳的面料达到或超过了EN 149:2001+A1:2009的呼吸阻力和过滤效率标准，并且与额外的过滤层相结合，达到或超过了FFP2级（过滤面罩）的要求。本研究强调了在优化个人防护装备（PPE）性能和用户安全方面精心选材和质量控制的重要性，为口罩制造商和医疗保健专业人员提供了宝贵的见解。
