摘要
【目的】人工林马尾松木材易蓝变、含有松脂、尺寸稳定性和耐久性差,为了改善其缺陷,提高其使用范围和产品附加值。【方法】本研究采用单因素方差分析法及定量分析法,主要研究了热处理温度对处理材颜色、物理力学性能和FTIR性能的影响。【实验结果】实验结果表明:热处理时间为8h,热处理温度为165℃、175℃、185℃、195℃时,与未处理材相比,ΔL值分别下降了3.69、4.36、10.23和11.66,静曲强度分别下降了3.05%、10.06%、13.27%和16.79%,弹性模量分别下降了9.99%、11.45%、14.63%和16.72%;FTIR图羟基吸收峰的强度明显降低,羰基吸收峰的强度略呈降低趋势,其尺寸稳定性明显高于未处理材。【结论】对人工林马尾松木进行热处理,能提高其尺寸稳定性,深度脱脂及防蓝变。
[ Objective ] Pinus massoniana plantation is prone to blue satin with rosin, poor dimensional stability and weak durability, therefore it becomes a desirable aim to resolve its deficiencies and improve application ＆ added value of products. [ Method ] The research employs one-way analysis of variance method and quantitative analysis method to study influences of heat treatment＇s temperature to wood color, mechanical property, and FTIR, respectively. [ Experimental Result ] Experimental result shows ： when heat treatment lasts eight hours and heat treatment＇s temperatures are 165~C, 175~C, 185~C, 195~C, their AL decreases by 3.69, 4. 36, 10.23 and 11.66, respectively; their static bending strength decreases by 3.05%, 10. 06%, 13.27% and 16.79%, respectively; their elastic modulus decreases by 9.99%, 11.45%,14. 63% and 16. 72%, respectively; absorption peak intensity of hydroxyl reduces significantly and that of carbonyl decreases slightly reflected by the FTIR ; its dimensional stability is apparently better than untreated wood. [ Conclusion ] Heat treatment on pinus massoniana plantation can improve its dimensional stability, help conduct deep degreasing and keep away from blue stain.
作者
巫国富
颜军
冯昌信
余欲军
曾俊钦
陈龙海
朱玲静
Wu Guo-fu;et al(Guangxi Eco-engineering Vocational and Technical College ,Liuzhou, Guangxi 545004 ,Chin)
出处
《广西农学报》
2017年第6期45-48,共4页
Journal of Guangxi Agriculture
基金
2017年度广西高校中青年教师基础能力提升项目"杉木与松木高温热处理改性应用研究"(2017ky1152)
2016年三江县科学研究与技术开发项目"杉木与松木高温热处理改性及产业化应用研究"
关键词
人工林马尾松
热处理
物理力学
性能
FTIR特征
pinus massoniana plantation
heat treatment
physical mechanics
property
FTIR
