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屋面喷涂硬泡聚氨酯的保温防水机理

喷涂聚氨酯硬泡材料导热系数极低,既保温又防水,易满足建筑节能要求,是目前实现建筑屋面保温防水一体化的新型节能建筑材料。硬泡聚氨酯屋面保温防水技术在我国新建和既有房屋修缮改造工程的应用上已积累了许多成功经验,其中采用喷涂工艺的硬泡聚氨酯保温、防水及节能效果更显著。

PENTUYINGPAOJUANZHISHICAIYONGYIQINGSUANZHI、DUOYUANCHUNJIFAPAOJIDENGTIANJIAJI,XIANCHANGSHIYONGZHUANYONGPENTUSHEBEI,ZAIJICENGSHANGLIANXUDUOBIANPENTUFAPAOJUANZHIHOU,XINGCHENGDEZHIMIWUJIEFENGDEYINGZHIPAOMOTI。WUMIANYONGPENTUYINGPAOJUANZHIANCAILIAOWULIXINGNENGKEFENWEIⅠ、Ⅱ、Ⅲ3 ZHONGLEIXING。

ⅠXINGJUYOUYOUYIBAOWENXINGNENG,YONGZUOWUMIANHEWAIQIANGBAOWENCENG;ⅡXINGCHUYOUYIBAOWENXINGNENGWAI,HAIJUYOUYIDINGFANGSHUIGONGNENG,YUKANGLIEJUHEWUSHUINISHAJIANGFUHESHIYONG,YONGZUOWUMIANFUHEBAOWENFANGSHUICENG;ⅢXINGCHUYOUYIBAOWENXINGNENGWAI,HAIJUYOUJIAOHAODEFANGSHUIXINGNENG,SHIYIZHONGBAOWENFANGSHUIGONGNENGYITIHUACAILIAO,YONGZUOWUMIANBAOWENFANGSHUICENG。

FANGSHUIJILI

(1)YINGPAOJUANZHISHUYUGAOFENZIPAOMOSULIAO,JUYOUZENGSHUIXING,QIZISHENXISHUILVJIDI(≤1%),BIKONGLVGAODA95%YISHANG,JUYOUJIAODIDESHUIZHENGQISHENTOUXINGHEYOULIANGDEBUTOUSHUIXING。

(2)JUANZHIYINGPAOTIWEILIANXUZHIMI、WUJIEFENGDEWANZHENGBUTOUSHUICENG,JUBEIYIDINGFANGSHUIGONGNENG,ZAIWUMIANXITONGZHONGKEDAITI1 DAOFANGSHUICENGSHIYONG。

(3)YINGPAOTIJUYOUYIDINGDANXING,YANSHENLVDA10%YISHANG,NENGSHIYINGWUMIANJICENGBIANXING,BIMIANKAILIESHENLOU。

(4)YINGPAOJUANZHIYUHUNNINGTU、JINSHU、MUCAI、ZHUANSHI、QIKUAIDENGDUOZHONGJIMIANJUNYOULIANGHAOZHANJIELI。XIANCHANGGAOYAPENTUFAPAOGUHUAJISHUSHIFAPAOTINENGSHENRUZHUTIJIEGOUFENGXI,QIDAOMIFENGZUOYONG,QIYUJICENGMIANDEZHANJIEQIANGDUDAYUYINGPAOTIBENSHENDESILIEQIANGDU,YINGPAOCENGDIMIANNENGYUWUMIANJICENGLAOGUZHANJIE,DINGMIANNENGYUCAILIAOXINGZHIXIANGPIPEIDEBAOHUCENGJINMIJIEHE,WUMIANZHENGTIXINGHAO,WUFENCENGXIANXIANG,KEBIMIANWUMIANSHUIYANCENGJIANFENGXISHENTOU。

BAOWENJILI

(1)YINGPAOJUANZHIBIKONGLVGAO、MIDUXIAO、DAOREXISHUDI、GEREBAOWENXINGNENGHAO。JUANZHIYINGPAOTISHIYOUJUANZHIGOUCHENGZHONGDUOBIKOUWEIKONGGUJIA,QIKONGNEIWEIDAOREXISHUHENDIDEFAPAOJIZHENGQIDEPAOMOTI。JUANZHIYINGPAOTIDEDAOREXISHUZHUYAOYOUCHONGTIANQITIDEDAOREXISHULAIJUEDING。CAIYONGWUFUFAPAOJIXINGCHENGDEJUNYUNZHIMIBIKOUKONGNEICHONGMANLEDAOREXISHUJIDIDEFAPAOJIZHENGQI,DANGMIDUWEI35~40 kg/m3 SHI,QIDAOREXISHUJINWEI0.018~0.025W/(m·K)。

(2)JUANZHIYINGPAOTIBIAOMIANZHIMIZENGSHUI、NAISHUI、KANGDONGHENAIFUSHIXINGHAO,BIMIANLECAILIAOYINSHOUCHAOSHOUDONGERSHIBAOWENXINGNENGXIAJIANG。