ABSTRACT

Rhizophora

spp. wood trunks were processed into 1.0 gcm⁻³ particleboards at three different particle sizes with the addition of natural adhesives, i.e. soy flour and lignin. Samples of particleboards were characterized using scanning electron microscope (SEM), Fourier-transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA). Crystallinity evaluation was conducted via X-ray diffraction (XRD). SEM images of the 6% adhesive-bonded Rhizophora spp. showed improvement in terms of compactness and number of voids, compared to the binderless sample. SEM images of soy flour appeared bright due to its higher density compared to lignin. FTIR spectrum of Rhizophora spp., soy flour, and lignin, were in good agreement with the previous study with adhesive-bound samples showed no discernible difference compared to raw Rhizophora spp. sample. TGA analysis revealed that all the samples showed a dissociation temperature of below 450°C. XRD result implies a lower crystallinity index compared to previous studies, indicating more amorphous material existed in the sample than crystalline material thus suggesting better physical and mechanical strength. Overall results demonstrated the potential use of soy-lignin bonded Rhizophora spp. particleboard as a tissue-substitute phantom material in medical physics applications.

中文翻译：

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木质素和大豆粉作为制造根霉属的粘合剂材料。用于医学物理应用的刨花板

摘要

根霉属

spp. 在添加天然粘合剂（即大豆粉和木质素）的情况下，将木树干加工成三种不同粒径的1.0 gcm ^{-3刨花板。}使用扫描电子显微镜 (SEM)、傅里叶变换红外光谱 (FTIR) 和热重分析 (TGA) 对刨花板样品进行表征。通过 X 射线衍射 (XRD) 进行结晶度评估。6% 粘合的根霉属的 SEM 图像。与无粘合剂样品相比，在致密性和空隙数量方面显示出改进。与木质素相比，大豆粉的密度更高，因此大豆粉的 SEM 图像显得明亮。Rhizophora的 FTIR 光谱spp.、大豆粉和木质素与之前的研究非常一致，粘合剂结合的样品与生根霉属 spp.相比没有明显差异。样本。TGA 分析显示所有样品的解离温度均低于 450°C。XRD 结果表明与以前的研究相比，结晶度指数较低，表明样品中存在的无定形材料多于结晶材料，因此表明其物理和机械强度更好。总体结果证明了大豆 - 木质素结合的Rhizophora spp 的潜在用途。刨花板作为医学物理应用中的组织替代体模材料。