Kwaśniewska Anita, Świetlicki Michał, Kowalska Beata, Gładyszewski Grzegorz
Department of Applied Physics, Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin, Poland.
Department of Water Supply and Wastewater Disposal, Faculty of Environmental Engineering, Lublin University of Technology, Nadbystrzycka 40D, 20-618 Lublin, Poland.
Materials (Basel). 2023 Sep 2;16(17):6031. doi: 10.3390/ma16176031.
This study aimed to investigate the effect of raw waste pine wood dust () from furniture production on polysaccharide biopolymer film properties. The obtained biocomposite films produced via the casting method were prepared with 20% glycerol and 0%, 5%, 10%, 15%, 20%, and 25% of added wood dust in relation to the dry starch matter. Wood dust composition and particle size distribution analysis were performed. In order to evaluate the material surface properties, tests were carried out using an atomic force microscope (AFM) and a contact angle goniometer. Utilising uniaxial tensile test methodology, the values for both tensile strength and Young's modulus were determined. In addition, the barrier properties, water solubility index, and colour were also investigated. The research showed that wood dust affected the functional parameters of the obtained biocomposites. A wood dust content increase causes the Young's modulus value to rise with a progressive decrease in the max. strain. The filler did not change the films' wetting properties, and each had a hydrophilic surface regardless of the additive amount. The bio-sourced composites obtained were non-toxic and environmentally neutral materials, suitable to be applied in the packaging industry as well as the agriculture sector.
本研究旨在探讨家具生产中产生的废弃松木粉对多糖生物聚合物薄膜性能的影响。通过流延法制备了含20%甘油以及相对于干淀粉物质添加量分别为0%、5%、10%、15%、20%和25%木粉的生物复合薄膜。对木粉成分和粒度分布进行了分析。为了评估材料的表面性能，使用原子力显微镜（AFM）和接触角测量仪进行了测试。采用单轴拉伸试验方法，测定了拉伸强度和杨氏模量的值。此外，还研究了阻隔性能、水溶性指数和颜色。研究表明，木粉会影响所得生物复合材料的功能参数。木粉含量增加会导致杨氏模量值升高，同时最大应变逐渐降低。填料未改变薄膜的润湿性能，无论添加量多少，各薄膜表面均为亲水性。所制备的生物基复合材料是无毒且环境友好的材料，适用于包装行业和农业领域。
