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1、命题考点八建筑高分子材料的特性与应用（Propositioneightpropertiesandapplicationsofbuildingpolymermaterials）1A410000buildingengineeringtechnology1A412000buildingmaterials1A412000constructionmaterialtestsectionGufenOnlinePropositioneight:propertiesandapplicationsofbuildingpolymermaterialsIfyouencounteranyquer
2、iesduringthecourseofyourstudy,pleasesignupatthemembercenterandaskquestionsandanswers![textbook]I.BuildingPlastics1.plasticpipes(1)hardPVCpipe:smoothinnerwall,littleresistance,nofouling,non-toxic,nopollution,corrosionresistance.Theservicetemperatureisnotmorethan40DEGC,soitiscoldwaterpipe.
3、Goodagingresistanceandflameretardant,rubberringflexibleinterfacecanbeinstalled.Mainlyusedforwatersupplypipelines(nonpotablewater),drainagepipes,stormpipes.(2)chlorinatedpolyvinylchloridepipe:hightemperature,highmechanicalstrength,suitableforcompressionoccasions.Mainlyusedinhotandcoldwate
4、rpipes,firehosesystems,industrialpipingsystems.(3)atacticpolypropylenepipes:non-toxic,harmless,nonrusting,noncorrosive,highlyacidresistantandchlorideresistant.Theutilitymodelissuitableforburyingandburyingintheembeddedwallandthegroundsurfaceofthefloor,andthewaterflowresistanceissmall.Theu
5、tilitymodelismainlyusedfordrinkingwaterpipesandhotandcoldwaterpipes.(4)butenepipe:highstrength,goodtoughness,non-toxic.Appliedtodrinkingwater,hotandcoldwaterpipes.Theutilitymodelisespeciallysuitableforpressurepipesofthinwallandsmallcaliber.(5)crosslinkedpolyethylenepipe:non-toxic,sanitar
6、y,transparent.Coilusedmainlyforfloorradiantheatingsystem.(6)aluminumplasticcompositepipe:safe,non-toxic,corrosionresistant,nofouling,largeflow,littleresistance,longlife,goodflexibility,noreboundafterbending,easyinstallation.Appliedtodrinkingwater,coldandhotwaterpipes.(7)coppercomplexplas
7、tic:non-toxic,antibacterial,nocorrosion,nofouling,goodwaterquality,largeflow,highstrength,rigidity,heatresistance,frostresistance,durability,long-termuseofwidetemperaturerange(-70to100DEGC),goodthermalinsulationpropertiesthancopper.Mainlyusedforindustrialanddomesticdrinki
