一种无溶剂型聚天门冬氨酸酯聚脲防水涂料的合成研究-邱小勇

、、。、。、VOC、、、、、、。、、、、。。*519050A、BAB、、。、、、。。1007-497X2016-09-0001-03TU502TU56+1.65A—————————————*2015。2016-01-061979。5190506788。StudyonPreparationofNon-solventPolyaspartatePolyureaWaterproofingCoatingQiuXiaoyongZhuhaiFeiyangNewMaterialsCo.,Ltd.,Shenzhen,Guangdong519050,ChinaAbstract:Non-solventpolyaspartatepolyureawaterproofingcoatingisconsistedoftwocomponentsofAandB.TheAgroupisprepolymerbyisocyanateandterminatedisocyanate,theBgroupiscompositedbypolyaspartate,modifiedpolyaspartate,fillersandasmallamountofadditives.Thewaterproofingcoatinghaslonggeltime,largetensilestrengthandhighelongationatbreak.Ithasgoodperformanceofwaterproofing,anticorrosiveandweatherresistance,aswellasenvironmentfriendly.Thecoatingcanbemanualconstructionanddonotneedspeciallargesprayingequipment,soitsapplicationareasarewide.Keywords:polyureawaterproofingcoating;polyaspartate;non-solvent;tensilestrength;elongationatbreak;tackfreetime;harddryingtimeDOI:10.15901/j.cnki.1007-497x.2016.09.001ChinaBuildingWaterproofing2016951A、BA2%~35%65%~98%B20%~60%、10%~40%、5%~30%。A、B。11.1F524、D2925HMDI、HDI3300、MDIIPDITDI1000PPG1000。1.21ATDI、、PPG100060～70℃—NCO6.2%—NCO9%～11%A。2BF524、D2925、30minB。1.3GB/T9271—2008《》A、B—NCO—NH。A、BGracoHV-20/35Fusion10.34MPa。0.5～0.6mm7d。1.4GB/T23446—2009《》GB/T19250—2013《》。22.1AAB12。2、。、。—NCOMDI、HDI3300、HMDIIPDI—NCO。MDI2HDI3300MDI/%≥96≥96/MPa≥15≥10/%≥300≥300/℃≤-35≤-350.4MPa2h/min≤30≤20/min≤12≤12/N/mm≥40≥40/MPa≥3.0≥3.0/240h、、、/240h、、、/240h、、、HMDIIPDI≥96≥96≥17≥17≥300≥300≤-35≤-35≤90≤120≤24≤24≥40≥40≥3.0≥3.01B/%F52440.0D292530.02.025.03.02016No.921F420HDI3300HMDI、HDI33001HMDI2HDI3300—NCOHMDIAHDI3300HMDI。2.2BBF420D2925F4201。D2925、。F420D2925B3AHMDI。3F420D292560∶20、50∶3040∶40、。F420D2925。D2925、、、、。D2925。2.396%800～1500mPa·sVOC40g/L300%20MPa。3、。、、、、、、、。、、、、、、、、。3B60∶2050∶3040∶40/%≥96≥96≥96/MPa≥12≥15≥20/%≥300≥300≥300/℃≤-35≤-35≤-350.4MPa2h/min≤30≤50≤120/min≤8≤12≤24/N/mm≥40≥40≥50/MPa≥3.0≥3.0≥3.0/240h、、、/240h、、、/240h、、、32016No.9