常压高温热处理对红竹竹材物理力学性能的影响  

Physical and mechanical properties of Phyllostachys iridescins under normal pressure and heat temperature

作　　者：夏雨[1] 牛帅红 李延军[1,3] 夏俐 马俊敏 王丽 余肖红[1] XIA Yu;NIU Shuaihong;LI Yanjun;XIA Li;MA Junmin;WANG Li;YU Xiaohong(School of Engineering,Zhejiang A＆F University,Hangzhou 311300,Zhejiang,China;Hebei Zhongrong Kechuang Information Technology Ltd.,Shijiazhuang 050000,Hebei,China;School of Materials Science and Engineering,Nanjing Forestry University,Nanjing 210037,Jiangsu,China;Hangzhou Heen Bamboo Ltd.,Hangzhou 311251,Zhejiang,China;Qingyuan Yongqing State Forestry Center,Qingyuan 323800,Zhejiang,China)

机构地区：[1]浙江农林大学工程学院,浙江杭州311300 [2]中融科创信息技术河北有限公司,河北石家庄050000 [3]南京林业大学材料科学与工程学院,江苏南京210037 [4]杭州和恩竹材有限公司,浙江杭州311251 [5]浙江庆元县永青国有林场,浙江庆元323800

出　　处：《浙江农林大学学报》2018年第4期765-770,共6页Journal of Zhejiang A&F University

基　　金：浙江省自然科学基金资助项目(LY16C160009);国家自然科学基金资助项目(31570552);浙江省科技厅公益项目(2015C31047)

摘　　要：以红竹Phyllostachys iridescins为研究对象,研究了常压高温热处理温度(110,130,150,170℃)与处理时间(1,2,3 h)对红竹竹材物理力学性能的影响。结果表明:热处理后红竹材的物理力学性能优于未处理竹材,热处理温度是影响竹材性能的主要因素;在110,130,150,170℃热处理温度下,圆竹材顺纹抗压强度增长率为35.90%~52.01%,圆竹材顺纹抗剪强度增长率43.24%~90.99%,圆竹材抗弯强度增长率42.47%~122.58%,圆竹材径向环刚度增长率2.14%~52.55%;170℃热处理竹材的各项干缩性能较好;130℃和150℃热处理竹材的力学性能相近。综合各因素,适宜原竹家具用材红竹竹材的热处理工艺为温度130℃,时间2 h。The effects of treatment temperature（110, 130, 150, 170 ℃） and time（1, 2, 3 h） on the physical and mechanical properties of Phyllostachys iridescins（including bamboo strips and round bamboo strips） were studied. The results showed that the physical and mechanical properties of Ph. iridescins after heat treatment were better than untreated bamboo, and the heat treatment temperature was the main factor affecting bamboo properties. Treated by 110, 130, 150, 170 ℃, compressive growth rate of round bamboo strips was 35.90%-52.01%, its shear growth rate was 43.24%-90.99%, its bending growth rate was 42.47%-122.58%, and its radial ring Stiffness growth rate was 2.14%-52.55%. The shrinkage of bamboo strip was better at 170 ℃. 130 ℃and 150 ℃ heat treated bamboo＇s mechanical properties were similar. Considering all the factors, the heat treatment process of the bamboo material was 130 ℃ for 2 h.

关 键 词：木材科学与技术 常压热处理 红竹 原竹家具 物理力学性能 

分 类 号：S781.3[农业科学—木材科学与技术]