Zaragoza-Benzal Alicia, Ferrández Daniel, Santos Paulo, Cunha André, Durães Luisa
Departamento de Tecnología de la Edificación, Universidad Politécnica de Madrid, Avda. Juan de Herrera, 6, 28040 Madrid, Spain.
University of Coimbra, Department of Civil Engineering, ISISE, ARISE, 3030-788 Coimbra, Portugal.
Materials (Basel). 2024 Aug 6;17(16):3898. doi: 10.3390/ma17163898.
In recent decades, plastic waste management has become one of the main environmental challenges for today's society. The excessive consumption of so-called single-use plastics causes continuous damage to ecosystems, and it is necessary to find alternatives to recycle these products. In this work, a mechanical and hygrothermal characterisation of novel plaster composites incorporating LDPE waste in their interior was carried out. Thus, prefabricated plasterboards have been designed with a partial replacement of the original raw material with recycled LDPE in percentages of 5-10-15% by volume. The results show how these new composites exceeded the 0.18 kN minimum breaking load in panels in all cases, while decreases in density and thermal conductivity of up to 15% and 21%, respectively, were obtained. In addition, an increase of 3.8%in thermal resistance was obtained by incorporating these new gypsum boards in lightweight façade walls through simulations. In this way, a new pathway was explored for the recovery of these wastes and their subsequent application in the construction sector.
近几十年来，塑料垃圾管理已成为当今社会面临的主要环境挑战之一。所谓一次性塑料的过度消费对生态系统造成持续破坏，因此有必要寻找回收这些产品的替代方法。在这项工作中，对内部含有低密度聚乙烯（LDPE）废料的新型石膏复合材料进行了机械和湿热特性表征。因此，设计了预制石膏板，用体积百分比为5%、10%、15%的回收LDPE部分替代原始原材料。结果表明，所有情况下这些新型复合材料的面板均超过了0.18 kN的最小断裂荷载，同时密度和热导率分别降低了高达15%和21%。此外，通过模拟将这些新型石膏板应用于轻质外墙，热阻提高了3.8%。通过这种方式，探索了一条回收这些废料并随后将其应用于建筑领域的新途径。
