纺织材料是微塑料污染的主要来源之一。到目前为止,洗涤程序是纺织品释放微塑料纤维(MPF)的最重要方式。因此,在这项研究中,各种纺织原料的影响(丙烯酸,PA聚酰胺,PET聚酯,RPET再生聚酯和PP聚丙烯),织物结构特性(机织,针织),不同洗涤阶段MPF释放的厚度和基重值(预洗涤,皂洗/漂洗)分别检查。为了模仿最流行的家庭洗涤程序,选择10分钟预洗涤和在40°C下35分钟皂洗/漂洗阶段用于洗涤程序。在高分辨率SL捕获的宏观图像上使用ImageJ程序。R摄像头,通过过滤水收集的微纤维已在视觉上计数。根据结果,针织面料比机织面料释放更少的MPF,机织丙烯酸样品(A3-w)表现出最高的释放(2405MPF)。MPF的数量随着织物的厚度和重量而增加。在相同条件下,发现回收聚酯比纯聚酯释放更多的MPF(1193MPF与908MPF)。这项研究展示了如何回收聚酯,虽然最初是一个对环境有利的解决方案,最终会对环境有害。此外,众所周知,预洗涤程序是可选的,比皂洗和漂洗程序释放更多的MPF,并且停止此过程将大大降低并入水中的MPF的量。
Textile materials are one of the primary sources of microplastic pollution. The
washing procedure is by far the most significant way that textile products release microplastic fibers (MPFs). Therefore, in this study, the effects of various textile raw materials (A acrylic, PA polyamide, PET polyester, RPET recycled polyester and PP polypropylene), fabric construction properties (woven, knitted), thickness and basis weight values on MPFs release at different washing stages (pre-
washing, soaping/rinsing) were examined separately. To mimic the most popular home
washing procedures, a 10-minute pre-wash and a 35-minute soaping/rinsing phase at 40°C were selected for the
washing procedure. Utilizing the Image J program on macroscopic images captured by a high-resolution SL.R camera, the microfibers collected by filtering the water have been visually counted. According to the results, knitted fabrics released fewer MPFs than woven fabrics, with the woven acrylic sample (A3-w) exhibiting the highest release (2405 MPFs). The number of MPFs increased along with the thickness and weight of the fabric. Recycled polyester was found to release more MPFs than virgin polyester under the same conditions (1193 MPFs vs. 908 MPFs). This study demonstrates how recycled polyester, although initially an environmentally beneficial solution, can eventually become detrimental to the environment. Furthermore, it is known that the pre-
washing procedure-which is optional-releases a lot more MPFs than the soaping and rinsing procedures, and that stopping this procedure will drastically lower the amount of MPFs incorporated into the water.