Department of Mechanical Engineering, Government Engineering College, Barton Hill, & APJ Abdul Kalam Technological University, Thiruvananthapuram, Kerala, India.
Department of Chemistry, Government Engineering College, Barton Hill & APJ Abdul Kalam Technological University, Thiruvananthapuram, Kerala, India.
Sci Rep. 2023 Oct 24;13(1):18169. doi: 10.1038/s41598-023-45523-3.
The advancement in natural fibre composites has replaced synthetic fibres in various commercial sectors. Bamboo species possess high mechanical properties due to their lignocellulosic fibre content, which makes them suitable for engineering applications and potential alternatives to solid wood. However, despite Bamboo being composed of 130 genera and 1700 different species, out of which many still remains underexplored. In this study, we investigated the, Lignocellulosic profiling, fibre strength, and mechanical characterization of two species of Pseudoxytenanthera Bamboo: Pseudoxytenanthera ritchiei, Pseudopxytenanthera stocksii, and the results obtained were compared with Bambusa balcooa, one of the priority species of bamboo identified by The International Plant Genetic Resources Institute (IPGRI). BET (Brunauer-Emmett-Teller) was used to quantify the samples' density, while SEM-EDX and FTIR spectroscopy were used for elemental analysis. The samples were then subjected to tensile test in addition, thermogravimetric analysis and water absorption test were carried out for the three species. The results showed that Pseudoxytenanthera species possessed superior chemical and mechanical characteristics compared to the priority species of bamboo used for composites. Out of the two Pseudoxytenanthera species studied, Pseudoxytenanthera stocksii exhibited the highest values of cellulose, hemicellulose, lignin, pectin, ash, carbon, and silicon, indicating its chemical superiority. Moreover, Pseudoxytenanthera stocksii also showed higher mechanical values for tensile strength, making it suitable for a variety of engineering applications. The TGA values also indicated that Pseudoxytenanthera stocksii is stable at high temperatures when compared with other natural fibres.
天然纤维复合材料的进步已经在各个商业领域取代了合成纤维。由于其木质纤维素纤维含量高，竹种具有较高的机械性能，这使得它们适合工程应用，并可能成为实木的替代品。然而，尽管竹子由 130 个属和 1700 个不同的种组成，其中许多仍未被充分开发。在这项研究中，我们研究了两种假青篱竹（Pseudoxytenanthera ritchiei、Pseudopxytenanthera stocksii）的木质纤维素分析、纤维强度和机械特性，并将结果与国际植物遗传资源研究所（IPGRI）确定的优先竹种之一的麻竹（Bambusa balcooa）进行了比较。BET（Brunauer-Emmett-Teller）用于定量样品的密度，而 SEM-EDX 和 FTIR 光谱用于元素分析。然后对样品进行拉伸试验，此外，还对三种竹种进行了热重分析和吸水率试验。结果表明，与用于复合材料的优先竹种相比，假青篱竹种具有更好的化学和机械特性。在所研究的两种假青篱竹种中，假青篱竹种（Pseudoxytenanthera stocksii）表现出最高的纤维素、半纤维素、木质素、果胶、灰分、碳和硅含量，表明其具有化学优势。此外，假青篱竹种（Pseudoxytenanthera stocksii）的拉伸强度也表现出较高的机械值，使其适合各种工程应用。TGA 值还表明，与其他天然纤维相比，假青篱竹种（Pseudoxytenanthera stocksii）在高温下更稳定。
