四种泡桐材抗劈力研究  

Study on the Cleavage Strength of Four Species of Paulownia Wood

作　　者：黄文豪[1] 常德龙[1] 唐玉红 杨君利 关倩[1] 胡伟华[1] 张云岭[1] 

机构地区：[1]国家林业局泡桐研究开发中心,郑州450003 [2]北京市天竺苗圃,北京100621

出　　处：《国际木业》2014年第1期8-11,共4页International Wood Industry

基　　金：林业公益性行业科研专项"泡桐装饰材新产品研发及优良品系选育研究"(201204705)

摘　　要：本文对兰考泡桐、秋叶泡桐、白花泡桐、毛泡桐的径、弦面抗劈力进行了对比研究。结果表明:兰考泡桐、秋叶泡桐、白花泡桐、毛泡桐的径面、弦面抗劈力均值均不相等,其中以白花泡桐值最大,径面抗劈力均值为13.62N/mm,弦面抗劈力均值为13.97N/mm;兰考泡桐最小,径面抗劈力均值为10.81N/mm,弦面抗劈力均值为10.59N/mm。方差分析结果表明:4种泡桐种间,径面抗劈力和弦面抗劈力均有极显著差异;种内,径面抗劈力与弦面抗劈力比较,无显著差异。The diameter and side grain cleavage strength on Paulownia elongate, Ecatalpifolia, Efortunei and Etomentosa had been studied. The results showed that the average values of cleavage strength about diameter and side grain of the four above species are different, The values of P.fortunei are the highest. Among the four species, the diameter cleavage strength is 13.62N/mm, side grain cleavage strength is 13.62N/mm. The values of Panlownia elongate are the lowest among the four species, the diameter cleavage strength is l 0.81N/ram, side grain cleavage strength is 10.59N/mm. Variance analysis showed that there is significant difference between the values of diameter and side grain cleavage strength among the four species, and there is not significant difference between the value of diameter and side grain cleavage strength.

关 键 词：泡桐 兰考泡桐 秋叶泡桐 白花泡桐 毛泡桐 抗劈力 力学性质 

分 类 号：S781.31[农业科学—木材科学与技术]