摘要
以废旧纤维为原料,通过对设备和工艺流程的设计开发了一套连续化生产废旧纤维非织造布蜂窝芯子的设备。根据平压破坏形式的不同和材料性能,设计了非织布蜂窝夹层结构最佳宽厚比,并且制备了15、20和30 mm 3种不同蜂格边长的夹层复合材料。试验研究了其密度、平压性能、弯曲性能、冲击韧性和导热系数,得出蜂格边长为15 mm时平压强度与设计计算的最大平压强度非常吻合,夹层复合材料的密度、平压性能、弯曲性能、冲击韧性和导热系数都呈现出随蜂格边长的增大而减小的趋势。该复合材料夹层结构具有轻质、力学性能优异、保温、抗压、耐腐蚀的特点,为其作为轻型建筑板材提供了广泛的应用前景。
The paper adopted the waste fiber as raw materials,a continuous production device of the waste-fiber nonwoven fabric honeycomb core was developed by means of equipments and technological processes＇design. According to fiat crush damage form and material properties,the optimal width-thickness ratio of the non-woven honeycomb sandwich structures was designed through the calculation,and sandwich composites of three different kinds of honeycomb side length namely 15,20 and 30 mm were prepared. The density,the flat crush damage performance;bending properties,impact toughness and thermal conductivity of sandwich composites were investigated. It was shown that the flat crush strength of honeycomb side length 15 mm is very consistent with design and calculation maximum flat crush strength. The density,flat crush strength, bending properties,impact toughness and thermal conductivity of sandwich composites decreased with the increasing of honeycomb side length. The sandwich structures are characteristics of lightweight,excellent mechanical properties,thermal insulation,compression and corrosion resistance. All of these provide its broad application prospects as a type of lightweight building boards.
出处
《新型建筑材料》
2013年第5期90-92,96,共4页
New Building Materials
关键词
废旧纤维
非织造布
设备
蜂窝夹层结构
制备
性能
waste fiber
non-woven
equipment
honeycomb sandwich strueture
preparation
properties
