Abir Nafis, Siddique Abu Bakr, Begum Hosne Ara, Gafur Md Abdul, Khan Ayub Nabi, Mahmud Md Arif
BGMEA University of Fashion & Technology, Nishatnagar, Turag, Bangladesh.
Bangladesh University of Textiles, Tejgaon, Dhaka, Bangladesh.
Heliyon. 2023 Jul 10;9(7):e18147. doi: 10.1016/j.heliyon.2023.e18147. eCollection 2023 Jul.
Gypsum plasterboards are widely used in interior decoration like false ceilings, wall partitioning etc. The main component of this plasterboard is gypsum, which is a mineral material. These boards contain poor mechanical strength with lower durability. The addition of natural fibres in these plasterboards can be useful to achieve better mechanical properties. Since Jute fibre is abundant in Bangladesh and its usability in reinforced composites is well established, for this reason, jute fibre was selected to do the research. The aim of this study was to evaluate the impact of jute fibre on the mechanical properties of the gypsum plasterboard. To make this board, Plaster of Paris and water were thoroughly mixed to make a suspension first. Different fibre loadings of 2, 4, 6, and 8% were incorporated into gypsum composites. Reinforcement of 6% fibre provided the highest tensile properties, but 8% fibre loading showed inferior tensile and flexural properties. Impact test results showed a gradually improving nature with fibre loading, and hardness values showed a decreasing trend in hardness with higher fibre loading. FTIR results and SEM images confirmed that no significant chemical bonding took place in the composites, instead, the composite depended mainly on the mechanical bonding among the reins crystals and between the fibre and gypsum matrix.
石膏板广泛应用于室内装饰，如吊顶、墙面隔断等。这种石膏板的主要成分是石膏，它是一种矿物材料。这些板材机械强度差，耐久性较低。在这些石膏板中添加天然纤维有助于获得更好的机械性能。由于黄麻纤维在孟加拉国储量丰富，且其在增强复合材料中的可用性已得到充分证实，因此选择黄麻纤维进行这项研究。本研究的目的是评估黄麻纤维对石膏板机械性能的影响。为了制作这种板材，首先将熟石膏和水充分混合制成悬浮液。将2%、4%、6%和8%的不同纤维含量加入石膏复合材料中。6%纤维增强提供了最高的拉伸性能，但8%纤维含量的拉伸和弯曲性能较差。冲击试验结果表明，随着纤维含量的增加，性能逐渐改善，硬度值显示随着纤维含量的增加硬度呈下降趋势。傅里叶变换红外光谱（FTIR）结果和扫描电子显微镜（SEM）图像证实，复合材料中没有发生显著的化学键合，相反，复合材料主要依赖于增强晶体之间以及纤维与石膏基体之间的机械结合。
