真空绝热板外墙保温系统性能研究

Study on Performance of Exterior Wall Insulation System for Vacuum Insulation Board

进行了真空绝热板外墙保温系统性能试验研究,发明了一种新型的外墙保温拉伸黏结强度专用切割装置。结果表明,真空绝热板具有较低的导热系数,物理力学性能良好。真空绝热板薄抹灰外墙保温系统具有较好的安全性能和耐久性能,抗风压性能达到6.3kPa,耐候性试验后墙体外观较好,无空鼓、剥落和裂缝,耐候试验后抹面层和保温层拉伸黏结强度达到0.08MPa,系统抗冲击性能达到3J。系统具有较低的吸水量和较高的水蒸气湿流密度。真空绝热板外墙保温系统已经在某些外墙和屋面工程中应用,效果较好。

The performance experiment of exterior wall insulation system for vacuum insulation board was carried out,and a new type of external wall thermal insulation tensile bond strength special cutting device was invented.The results show that, vacuum insulation board with lower thermal conductivity has good physical and mechanical properties. Vacuum insulation board thin plastering exterior wall thermal insulation system has better security performance and durability, antiwind pressure performance reaches to 6.3k Pa, exterior wall of weathering test after experiment is good, which is no hollowing, spalling and cracking, and tensile bond strength of finishing layer and the insulation layer reaches 0.08 MPa after weathering test, system shock resistance reaches 3J. The system has a low water absorption and high water vapor density,and the external thermal insulation system of vacuum insulation panels has been used in some external wall and roofing projects, the effect is better.