林业工程学报2017，Vol.2Issue(5)：15-19,5.DOI:10.13360/j.issn.2096-1359.2017.05.003
热油处理对重组竹性能的影响
Effect of heat oil treatment on bamboo scrimber properties
摘要
Abstract
In order to avoid the drawbacks of the deformation, dehiscence and mildew when bamboo scrimber is used in outdoor environment, the bamboo scrimber was heat treated with heat conducting oil. The research was focused on the effects of conducting oil temperature (120℃, 140℃, 160℃ and 180℃) and treatment time (2 h, 4 h and 6 h) on the density, dimensional stability, physical and mechanical properties, and wettability of the bamboo scrimber. The results showed that, with the increase in heating oil temperature and treatment time, the density of the bamboo scrim-ber was gradually decreased. The color of the bamboo scrimber became tawny from pale white after the heating oil treatment, and the cell walls of the bamboo scrimber presented dehiscence, which could be attributed to the high pres-sure during the processing of bamboo scrimber. When the heating oil temperature and treatment time were 180℃ and 6 h, respectively, the density of the bamboo scrimber decreased by 22. 2%, the 24 h thickness swelling rate reached 1. 97%, and the modulus of elasticity and modulus of rupture decreased by 28. 6% and 31. 6%, respectively. The wet-tability of the bamboo scrimber significantly decreased after the heating oil treatment, and the contact angles of the bamboo scrimber increased with the increase of conducting oil temperature and treatment time. The characterization of the Fourier transform-infrared spectroscopy (FT-IR) curves showed that the vibration intensity of absorption peaks re-presented free hydroxyl and carbonyl groups, respectively, were significantly reduced, which revealed that the number of hydrophilic groups in the bamboo scrimber decreased.关键词
重组竹/热油处理/润湿性能/物理力学性能/微观形态Key words
bamboo scrimber/heat oil treatment/wettability/physical and mechanical properties/microstructure分类
农业科技引用本文复制引用
何文,宋剑刚,汪涛,李军生,谢凌翔,杨阳,吴波,张齐生..热油处理对重组竹性能的影响[J].林业工程学报,2017,2(5):15-19,5.基金项目
" 十 二 五 " 国 家 科 技 支 撑 计 划 ( 201304503 ) （ 201304503 ）
江 苏 省 自 然 科 学 基 金 ( BN20140971 ) （ BN20140971 ）
浙 江 省 2015 重 大 科 技 专 项(2015C02SA530006) （2015C02SA530006）
江苏苏北科技专项(BN2016172). （BN2016172）
