Sharma Bhavna, Shah Darshil U, Beaugrand Johnny, Janeček Emma-Rose, Scherman Oren A, Ramage Michael H
1Department of Architecture and Civil Engineering, University of Bath, Bath, UK.
2Department of Architecture, Centre for Natural Material Innovation, University of Cambridge, Cambridge, UK.
Cellulose (Lond). 2018;25(6):3255-3266. doi: 10.1007/s10570-018-1789-0. Epub 2018 Apr 23.
Natural materials are a focus for development of low carbon products for a variety of applications. To utilise these materials, processing is required to meet acceptable industry standards. Laminated bamboo is a commercial product that is currently being explored for structural applications, however there is a gap in knowledge about the effects of commercial processing on the chemical composition. The present study utilised interdisciplinary methods of analysis to investigate the effects of processing on the composition of bamboo. Two common commercial processing methods were investigated: bleaching (chemical treatment) and caramelisation (hygrothermal treatment). The study indicated that the bleaching process results in a more pronounced degradation of the lignin in comparison to the caramelised bamboo. This augments previous research, which has shown that the processing method (strip size) and treatment may affect the mechanical properties of the material in the form of overall strength, failure modes and crack propagation. The study provides additional understanding of the effects of processing on the properties of bamboo.
天然材料是多种应用领域低碳产品开发的重点。为了利用这些材料，需要进行加工以符合可接受的行业标准。层压竹材是一种目前正在探索用于结构应用的商业产品，然而，关于商业加工对化学成分影响的知识存在空白。本研究采用跨学科分析方法来研究加工对竹材成分的影响。研究了两种常见的商业加工方法：漂白（化学处理）和焦糖化（湿热处理）。研究表明，与焦糖化竹材相比，漂白过程会导致木质素更明显的降解。这补充了先前的研究，该研究表明加工方法（条带尺寸）和处理可能会以整体强度、失效模式和裂纹扩展的形式影响材料的力学性能。该研究为加工对竹材性能的影响提供了更多的认识。
