Bartoszuk Katarzyna, Kowaluk Grzegorz
Faculty of Wood Technology, Warsaw University of Life Sciences-SGGW, Nowoursynowska St. 159, 02-787 Warsaw, Poland.
Institute of Wood Science and Furniture, Warsaw University of Life Sciences-SGGW, Nowoursynowska St. 159, 02-776 Warsaw, Poland.
Materials (Basel). 2023 Jul 29;16(15):5340. doi: 10.3390/ma16155340.
During the production of furniture, large amounts of waste materials are generated, which are most often stored in warehouses without a specific purpose for their subsequent use. In highly developed countries, as many as 25 million tons of textile waste are produced annually, of which approximately 40% is non-clothing waste such as carpets, furniture and car upholstery. The aim of this research was to produce and evaluate dry-formed high-density fiberboards (HDF) bonded with urea-formaldehyde resin, 12% resination, with various shares of recycled particles of natural leather used in upholstery furniture production at different contents (1, 5 and 10% by weight). The panels were hot-pressed (200 °C, 2.5 MPa, pressing factor 20 s mm). Mechanical properties (modulus of rupture, modulus of elasticity and screw withdrawal resistance) and physical properties (density profile, thickness swelling after water immersion, water absorption and surface absorption) were tested. The density profile and contact angle of natural leather have been also characterized. The results show that increasing the content of leather particles in HDF mostly has a positive effect on mechanical properties, especially screw withdrawal resistance and water absorption. It can be concluded that, depending on the further use of HDF, it is possible to use recovered upholstery leather particles as a reasonable addition to wood fibers in HDF technology.
在家具生产过程中，会产生大量废料，这些废料大多被存储在仓库中，后续并无特定用途。在高度发达国家，每年产生多达2500万吨的纺织废料，其中约40%是诸如地毯、家具和汽车内饰等非服装类废料。本研究的目的是生产并评估用脲醛树脂粘结、树脂含量为12%的干法成型高密度纤维板（HDF），该纤维板含有不同比例（按重量计为1%、5%和10%）用于室内装饰家具生产的天然皮革回收颗粒。这些板材经过热压（200℃、2.5兆帕、压制系数20秒/毫米）。测试了其机械性能（断裂模量、弹性模量和抗螺钉拔出力）和物理性能（密度分布、水浸后厚度膨胀、吸水性和表面吸水性）。还对天然皮革的密度分布和接触角进行了表征。结果表明，增加HDF中皮革颗粒的含量大多对机械性能有积极影响，尤其是抗螺钉拔出力和吸水性。可以得出结论，根据HDF的进一步用途，在HDF技术中，有可能将回收的室内装饰皮革颗粒作为木纤维的合理添加物。
