木基免拆保温建筑模板制备及其性能研究  

Studies on the performance and preparation of wood-based permanent formwork with thermal insulation

作　　者：黄清华[1] 郑霞[1] 高歌 贺正国 谢向荣 李新功[1] HUANG Qinghua;ZHENG Xia;GAO Ge;HE Zhengguo;XIE Xiangrong;LI Xingong(Academy of Materials Science and Engineering; Central South University of Forestry and Technology, Changsha 410000, China;Green Construction Technology Group New Building Materials High-Tech Co., Ltd, Changsha 410000, China)

机构地区：[1]中南林业科技大学材料科学与工程学院,长沙410004 [2]绿建科技集团新型建材高技术有限公司,长沙410004

出　　处：《功能材料》2019年第1期1091-1097,共7页Journal of Functional Materials

基　　金：国家重点研发计划资助项目(2017YFD0601200);湖南省重点研发计划资助项目(2017SK2334)

摘　　要：以木材加工剩余物碎料和自制无机胶粘剂为原料,通过热压工艺制备木基免拆保温建筑模板。研究了施胶量、热压时间、热压温度及板材密度对其性能的影响。结果表明,试验范围内,随着施胶量、密度的增大,木基免拆保温建筑模板的抗折强度、弹性模量、软化系数、导热系数逐渐增大,抗冻性能增强;随着热压温度、热压时间的增加,木基免拆建筑模板的抗折强度、弹性模量、软化系数先增大后减少,导热系数逐渐下降,抗冻性能先上升后下降。通过分析获得木基免拆保温建筑模板优化制板工艺参数:密度为0.9g/cm3,施胶量为65%,热压温度为120℃,热压时间为12min。With wood processing residues and inorganic adhesives as raw materials, wood-based permanent formwork with thermal insulation was manufactured by hot-pressing technology. The effect of adhesives consumption, hot pressing time, hot pressing temperature and density on plate the board was studied. Results showed that thermal insulation flexural strength, elastic modulus, softening coefficient thermal conductivity and frost resistance of wood-based permanent formwork were gradually increased with increase of adhesives consumption and density. The thermal insulation flexural strength, elastic modulus, softening coefficient and frost resistance of wood-based permanent formwork firstly increase then decreased and thermal conductivity decreased with increase of hot pressing temperature and hot pressing time. Optimal process was as follows: density of 0.9 g/cm^3, adhesive consumption of 65%, hot-pressing temperature of 120 ℃, and hot-pressing time of 12 min.

关 键 词：木材加工剩余物 无机胶粘剂 物理力学性能 导热系数 抗冻性能 优化工艺 

分 类 号：TU551[建筑科学—建筑技术科学]