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Effect of Essential Oils on the Mechanical Properties of Lignocellulosic Materials

机译：精油对木质纤维素材料力学性能的影响

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摘要

Biodeterioration of lignocellulosic materials is a worldwide problem and it causes a great damage especially to unique manuscripts and books stored in libraries. These materials are permanently subject to suffering from physical, chemical, and/or biological changes. Biological deterioration by microorganisms (bacteria and fungi) causes undesirable changes on material properties. Using of EOs (essential oils) for protection against microorganisms appears to be an option, because antimicrobial effects of the main compounds of EOs were proven. This work analyzes the antimicrobial stability of 2 essential oils (citral and linalyl acetate), as well as their stability of mechanical properties, in selected lignocellulosic materials (soft wood and hard wood kraft pulp, softwood sulphite pulp).Some parts of samples were subjected only to the condition of the EOs, other samples were firstly treated by accelerated ageing. Last samples were exposed to the accelerated ageing and afterwards treated by EOs. From the mechanical properties measuring of samples it is possible to state that in some SAJ samples the influence of EOs vapour is positive. This was monitored even when the samples were treated by accelerated ageing.
机译：木质纤维素材料的生物传达器是全球问题，它造成了很大的损害，尤其是存储在图书馆中的独特手稿和书籍。这些材料永久性受到物理，化学和/或生物学变化的影响。微生物（细菌和真菌）的生物劣化导致材料性质的不良变化。使用EOS（精油）对微生物的保护似乎是一种选择，因为证明了EOS主要化合物的抗微生物作用。这项工作分析了2种精油（醋酸柠檬酸植物和乙酸盐）的抗微生物稳定性，以及它们的机械性能稳定性，在选定的木质纤维素材料中（软木和硬木牛皮浆，软木熊氨浆）。对样品的部分部分进行了影响仅通过EOS的状况，首先通过加速老化处理其他样品。将最后的样品暴露于加速老化，然后通过EOS治疗。根据样品测量的机械性能，可以说明一些SAJ样品EOS蒸汽的影响是阳性的。即使当通过加速老化处理样品，也会监测这一点。

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