杨木剩余物功能化粉末工艺性能研究  

Technological properties of poplar residues functionalized powder

作　　者：刘俊怀 夏余平 袁建 刘克非 吴庆定[1] LIU Junhuai;XIA Yuping;YUAN Jian;LIU Kefei;WU Qingding(Research Institute of Material Forming Technology,Central South University of Forestry and Technology,Changsha 410004,Hunan,China;Hunan University of Science and Engineering,Yongzhou 425100,Hunan,China)

机构地区：[1]中南林业科技大学材料成形技术研究所,湖南长沙410004 [2]湖南科技学院,湖南永州425100

出　　处：《中南林业科技大学学报》2019年第10期139-144,共6页Journal of Central South University of Forestry & Technology

基　　金：湖南省重点研发计划项目(2017GK2255);湖南省自然科学基金/常德市联合基金项目(2016JJ5009);长沙市科技计划资助项目(Kq1701098、Kq1801081);湖南省交通运输厅科技进步与创新计划项目(201731)

摘　　要：为高值清洁利用竹木剩余物、农作物秸秆、杂草藤条等廉价碳汇资源开发耐磨、耐候、绝缘木质功能材料,对添加有纳米刚玉粉、电玉粉等强化因子的杨木剩余物功能化粉末的压缩性、成形性与耐热性等工艺性能进行了专题研究。结果表明:添加有电玉粉等强化因子的杨木剩余物功能化粉末,不论室温还是160℃温度环境,在80 MPa成形压力下的压缩性与成形性最佳,但其在室温环境下的成形性仅为160℃温度环境下的5%左右,160℃环境温度下的压缩性比室温环境下的提高了27%以上(最高达到了1.32 g/cm^3);温压成形工艺、电玉粉等强化因子对杨木剩余物粉末高温环境下的热失重行为具有重要影响,为后续研究木质剩余物功能化材料的耐候性指明了方向。Low-cost carbon sink resources such as bamboo and wood residues,crop straw,weeds and vines are utilized for high value cleaning.The compressibility,formability and thermogravimetric properties of the functionalized poplar residual powder with the addition of strengthening factors such as tourmaline powder were studied.The results show that the compressibility and formability of functionalized poplar residual powder with strengthening factors such as tourmaline powder are the best un 80MPa forming pressure,whether at room temperature or 160℃;but its formability at room temperature is only about 5%of that at 160℃,and the compressibility at 160℃is 27%higher than at room temperature(up to 1.32 g/cm^3).The thermogravimetric behavior of poplar residual powder at high-temperature is greatly affected by the warm compaction process or strengthening factors(such as tourmaline powder),and they can significantly improve the weatherability of compact.

关 键 词：杨木剩余物 功能化粉末 压缩性 成形性 耐热性 

分 类 号：S781.2[农业科学—木材科学与技术]