表面带凹坑的真空绝热板性能与结构研究  

Study on properties and structure of surface pitted vacuum insulation panels

作　　者：陈清 吴和平 杨闯 

机构地区：[1]浙江省质量检测科学研究院,浙江杭州310018

出　　处：《新型建筑材料》2016年第1期76-78,共3页New Building Materials

摘　　要：利用模具在玻璃纤维芯材结构上开微小孔,再将未开孔芯材与开孔芯材相叠加,抽真空后,芯材开孔处在真空绝热板(VIP)膜材表面形成凹坑。对比不同开孔个数对VIP导热系数的影响,研究了表面带凹坑的VIP结构在用于外墙外保温系统时对整个系统拉拔强度的影响。实验结果发现,当开孔个数达到一定值时,表面带凹坑的VIP的导热系数比未开孔的VIP导热系数还要低;凹坑结构对VIP外墙外保温系统的拉拔强度具有一定的提高和改善。Using mold to make a small hole on the glass fiber core structure,then overlap the core structure with and without hole,after evacuation vacuum, pit will form on the vacuum insulation panel （VIP） membrane surface at the core hole. Compare effect of different hole number on thermal conductivity of VIP,study the influence of surface pitted VIP structure on the pull-out strength of the whole system when being used as exterior insulation system. It was found that, when the number of holes reaches a certain value,the thermal conductivity of surface pitted VIP is even lower than that without holes,the pit structure has certain enhancement and improvement to the tensile strength of VIP EIFS.

关 键 词：真空绝热板(VIP) 开孔芯材 凹坑 导热系数 拉拔强度 

分 类 号：TU551[建筑科学—建筑技术科学]