The research carried out studies how the addition of plastic polypropylene fibers from recycled non-degradable wet wipes can influence on the physical and mechanical behavior of composites with a gypsum binder matrix. Four different plaster blends were studied, corresponding to percentages of 2, 2.5, 3 and 3.5% by weight of recycled plastic fibers. To characterize the different test specimens, properties such as density and strength (flexural and compressive) were determined. Also, in order to find out about the internal structure of the different composites developed at a microscopic level, a Scanning Electron Microscopy (SEM) test was performed. The results show that more efficient materials can be obtained with a little decrease in their density compared to the reference material (gypsum). However, the improvement in the novel composites’ mechanical properties represents one of the most notable achievement of the study. A flexural strength rise of a 19% was achieved for mixtures with 2,5% of recycled PP fibers compared to the reference specimen. These results confirm the feasibility of using the gypsum composites produced for the design of new construction products and its application in building systems as wall and ceiling lining.

这项研究研究了从回收的不可降解湿巾中添加塑料聚丙烯纤维如何影响具有石膏粘合剂基质的复合材料的物理和机械性能。研究了四种不同的灰泥共混物，分别对应于再生塑料纤维重量的2、2.5、3和3.5％。为了表征不同的试样，确定了诸如密度和强度（弯曲和压缩）的特性。另外，为了找出在微观水平上显影的不同复合材料的内部结构，进行了扫描电子显微镜（SEM）测试。结果表明，与参考材料（石膏）相比，可以在密度略微降低的情况下获得更有效的材料。然而，新型复合材料机械性能的改善代表了该研究最显着的成就之一。与参考样品相比，含有2.5％再生PP纤维的混合物的弯曲强度提高了19％。这些结果证实了将所生产的石膏复合材料用于设计新的建筑产品的可行性以及其在建筑系统中作为墙壁和天花板衬砌的应用。