阻燃抑烟型杨木单板/秸秆板复合材制备研究  

Research on Preparation of Poplar Veneer/Straw Board Composites with Flame Retardation and Smoke Suppression

作　　者：左迎峰[1] 吴义强[1] 李新功[1] 李贤军[1] 张新荔[1] 朱晓丹[1] ZUOYingfeng WU Yiqiang LI Xingong LI Xianjun ZHANGXinli ZHUXiaodan(College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China)

机构地区：[1]中南林业科技大学材料科学与工程学院,湖南长沙410004

出　　处：《建筑材料学报》2016年第5期860-865,882,共7页Journal of Building Materials

基　　金："十二五"国家科技支撑计划项目(2012BAD24B03);国家林业公益性行业科研重大专项(201204704);国家自然科学基金资助项目(31300485)

摘　　要：以稻草秸秆和杨木单板为原材料,无机胶黏剂为黏结剂,制备了可用于地板的阻燃抑烟型单板/秸秆板复合材.设计了单板/单秸秆板芯层和单板/双秸秆板芯层2种复合材.通过对比无机杨木胶合板、秸秆板和单板/秸秆板复合材的燃烧性能、质量损失率和导热系数,研究单板/秸秆板复合材的阻燃抑烟性能,并对比了2种复合材的力学性能.结果表明:无机胶黏剂覆盖于板材表面能隔断氧气与热量传递,控制火焰从而发挥阻燃作用;单板和秸秆板复合后能保证板材的结构和强度,降低板材的火灾危险性;相对于单板/单秸秆板芯层复合材,单板/双秸秆板芯层复合材的导热系数降低了27.7%,静曲强度和弹性模量显著提高,且能够防止地板加工时产生的碎边现象.Poplar veneer/straw board composites with flame retardation and smoke suppression were prepared with rice straw and poplar veneer as raw material,and inorganic adhesive as binder.Two kinds of composites of veneer/single straw board core layer and veneer/double straw board core layer were designed.The flame retardation and smoke suppression performance of inorganic poplar plywood,straw board and veneer/straw board composites was studied by comparing the combustion performance,mass loss rate and thermal conductivity.The mechanical properties of the composites were also compared.The results show that inorganic adhesive plays a very good role in flame retardancy by covering the board surface and cutting off the transfer of oxygen and heat,so as to protect the internal plate.Veneer/straw board composites can guarantee the structure and strength of board,and reduce the risk of fire.Compared with veneer/single straw board core layer composite,the thermal conductivity of veneer/double straw board core layer composite is reduced by 27.7%.The static bending strength and elastic modulus of veneer/double straw board core layer composite are improved significantly,and it can prevent the break edge phenomenon of floor board.

关 键 词：无机胶黏剂 阻燃抑烟型 单板/秸秆板复合材 地板材 

分 类 号：TS653[轻工技术与工程]