Improvement of the Dimensional Stability of Rubber Wood Based on the Synergies of Sucrose and Tung Oil Impregnation
Improvement of the Dimensional Stability of Rubber Wood Based on the Synergies of Sucrose and Tung Oil Impregnation
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DOI：
10.3390/f14091831
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发表时间：
2023-09
期刊：
影响因子：
2.9
通讯作者：
Chunwang Yang;Susu Yang;Huanxin Yang;Buapan Puangsin;Jian Qiu
中科院分区：
文献类型：
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作者：
Chunwang Yang;Susu Yang;Huanxin Yang;Buapan Puangsin;Jian Qiu
橡胶木在使用过程中经常表现出尺寸不稳定性，严重阻碍了其广泛应用。为了提高橡胶木的尺寸稳定性，本研究采用两步法分别用蔗糖和桐油对橡胶木进行改性。还制备了单独用蔗糖或桐油处理的样品。研究了改性前后木材的吸水率、尺寸稳定性和热稳定性。结果表明，30%蔗糖和桐油处理的木材具有优异的耐水性和尺寸稳定性，这是基于蔗糖和桐油的协同效应。浸泡384 h后，30%蔗糖和桐油组的吸水率比对照组降低76.7%，防膨率为57.85%，比单独使用桐油组提高66.81%。此外，30%蔗糖和桐油组的浸出率比单独用30%蔗糖溶液改性的样品降低了81.27%。同时，30%蔗糖和桐油组具有较好的热稳定性。因此，蔗糖和桐油协同改性橡胶木是一种环保、经济、高效的方法，具有扩大橡胶木产品应用范围的潜力。
Rubber wood often exhibits dimensional instability during use, which seriously hinders its widespread application. In order to enhance the dimensional stability of rubber wood, a two-step method was employed in this study to modify rubber wood using two plant-derived compounds, namely sucrose and tung oil. Samples treated alone with sucrose or tung oil were also prepared. The water absorption, dimensional stability, and thermal stability of modified and untreated wood were evaluated. The results show that wood samples treated with 30% sucrose and tung oil had excellent water resistance and dimensional stability based on the synergistic effect of sucrose and tung oil. After 384 h of immersion, the 30% sucrose and tung oil group presented a reduction in water absorption by 76.7% compared to the control group, and the anti-swelling efficiency was 57.85%, which was 66.81% higher than that of the tung oil treatment alone. Additionally, the leaching rate of the 30% sucrose and tung oil group decreased by 81.27% compared to the sample modified with the 30% sucrose solution alone. Simultaneously, the 30% sucrose and tung oil group showed better thermal stability. Therefore, this study demonstrates that the synergistic treatment of modified rubber wood by sucrose and tung oil is an eco-friendly, economical, and highly efficient approach with the potential to expand the range of applications of rubber wood products.