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Bending Strength of Wood Treated with Propolis Extract and Silicon Compounds

机译：用蜂胶提取物和硅化合物处理木材的弯曲强度

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摘要

The modification of wood and its treatment with various preservatives may affect its mechanical properties, hence the knowledge of the character changes in wood caused by impregnation is of great importance. Therefore, the aim of the research was to determine the effect of impregnation, with the propolis-silane preparation (EEP-MPTMOS/TEOS) consisting of the propolis extract (EEP) and silicon compounds: 3-(trimethoxysilyl)propyl methacrylate (MPTMOS) and tetraethoxysilane (TEOS), on the bending strength of treated wood. Moreover, in the study wood treated with components of the propolis-silane formulation was used, namely 70% ethanol, the propolis extract, and silanes (MPTMOS/TEOS). In order to determine whether the impregnation of wood affects its long-term bending, creep tests were performed depending on the humidity. The impregnation of wood with the propolis extract and the propolis-silane preparation (EEP-MPTMOS/TEOS) contributed to the increase in modulus of rapture and work to maximum load values compared to the untreated wood. In dry wood condition, the wood treated with EEP and EEP-MPTMOS/TEOS was characterized by lower modulus of elasticity values than the control samples. In turn, in wet wood condition, wood treated with the propolis-silane preparation showed an increase in the MOE value. Moreover, the impregnation of wood had an influence on the wood creep process under bending loads. The treated wood was characterized by higher relative creep compliance than the untreated wood. The exception was the wood impregnated with EEP-MPTMOS/TEOS, which showed comparable relative creep compliance to the control samples. The presented results indicate that wood treated with a bio-friendly preparation based on propolis and silicon compounds can be used in various application and also in variable humidity conditions.
机译：木材的改性及其各种防腐剂的治疗可能会影响其机械性质，因此对浸渍引起的木材的性格变化的知识具有重要意义。因此，研究的目的是确定浸渍的效果，蜂胶 - 硅烷制备（EEP-MPTMOS / TEOS）由蜂胶提取物（EEP-MPTMOS / TEOS）组成：3-（三甲氧基甲硅烷基）丙烯酸丙酯（MPTMOS）和四乙氧基硅烷（TEOS），对处理木材的弯曲强度。此外，在使用蜂胶 - 硅烷制剂的组分处理的研究中，即70％乙醇，蜂胶提取物和硅烷（MPTMOS / TEOS）。为了确定木材的浸渍是否影响其长期弯曲，根据湿度进行蠕变测试。用蜂胶提取物和蜂胶 - 硅烷制备（EEP-MPTMOS / TEOS）的浸渍有助于提高RAPTURE的模量，与未处理的木材相比的最大载荷值。在干燥的木状况中，用EEP和EEP-MPTMOS / TEOS处理的木材的特征在于弹性值的较低模量而不是对照样品。反过来，在湿木状况下，用蜂胶 - 硅烷制备治疗的木材显示出MOE值的增加。此外，木材的浸渍对弯曲负荷下的木蠕变过程产生了影响。经处理的木材的特征在于比未处理的木材更高相对蠕变的顺应性。外壳是浸渍有EEP-MPTMOS / TEOS的木材，其显示出与对照样品的相当蠕变依从性。所呈现的结果表明，基于蜂胶和硅化合物的生物友好制剂处理的木材可用于各种应用，也可以在可变湿度条件下使用。

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