Investigation of the Physical, Mechanical and Chemical Properties of the Marrow of Raffia Hookeri

ABSTRACT

The bamboo marrow of raffia hookeri (BMRH) has been characterized for a potential alternative to synthetic materials and possible new applications. This work consisted in investigating the physical, chemical and mechanical properties of raffia bamboo. Different functional groups and the degradation of BMRH were analyzed respectively by Fourier Transform Infrared Spectrometer (FT-IR) spectroscopy and thermo gravimetric (TG/DTG). The results indicate that the functional groups present and the degradation temperature are similar to cellulosic materials of the same species. Determination of the density of BMRH shows that it is very low and can be considered as a very light wood. Stress relaxation tests (in uni-axial compression) at different stages in the loading and unloading phase were carried out. The results of the stress relaxation show a high and non-linear viscoelastic and viscoplastic behavior of BMRH (in both loading and unloading).

摘要

莱佛果的竹髓(BMRH)已被鉴定为合成材料的潜在替代品和可能的新应用. 这项工作包括调查的物理,化学和机械性能的拉菲竹. 采用傅立叶变换红外光谱(FT-IR)和热重分析(TG/DTG)分别分析了BMRH的不同官能团和降解情况. 结果表明,所存在的官能团和降解温度与同一物种的纤维素材料相似. 测定BMRH的密度表明,BMRH的密度非常低,可以认为是一种非常轻的木材. 在加载和卸载阶段的不同阶段进行了应力松弛试验(单轴压缩). 应力松弛的结果显示BMRH具有高度的非线性粘弹性和粘塑性(加载和卸载).

KEYWORDS:

• Wood
• bamboo hookeri
• relaxation
• thermo gravimetric
• density

关键词:

• 木材
• 胡克竹
• 松弛
• 热重
• 密度