泡棉基材压敏胶带的选用(english,来自外国专业网站)

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1、SelectingandUsingFoamBackedPressureSensitiveTapesPressuresensitivetapecanbemanufacturedwithafoambackingandapressuresensitiveadhesiveoneitheroneorbothsidesofthefoam.Theseproductsaregenerallyknownasmountingtape,doublebackedfoamtape,or"veryhighbond(VHB)tape"-atermusedby3MCompany,oneoft

2、hemajorsuppliersofthisproduct.Themostrecognizableapplicationsareforsecuringobjectssuchaspicturesonwallsandattachingplasticbodysidemoldingtoautomobiles.Foamtapeshaveuniquephysicalcharacteristicsthatmakethemappropriatefastenersinsemi-structuralapplicationsaswell.Theseimportantapplicat

3、ionsincludeshearwallconstructionforhousingandreplacingmechanicalfastenersinappliances.Manyothersensiblestructuralapplicationsarealsopossible.FoambackedtapeswithPSAononlyonesidecanbeusedasacushioninggasketforsealingandinsulatingobjectssuchaswindowframesonresidentialhomesandautomobile

4、s.Theyareoftenfoundinthedo-it-yourselfsectionoflocalstoresforhomeweatherstripping.Whetheradhesiveisononeorbothsidesofthefoam,theseproductsmusthavespecialphysicalpropertyrequirementsbothfortheadhesiveaswellasforthefoambacking.Thisarticlewillreviewthevarioustypesoffoamtapesthatarecomm

5、erciallyavailable,theirmainapplications,andconsiderationsthatneedtobetakenintoaccountwhenusingtheseproducts.DoublesidedfoamtapesgenerallyconsistoffourcomponentsasshowninFigure1.Theseare:·Thecarriermaterial,whichisafoam,·Alayerofpressuresensitiveadhesiveononesideofthefoam,·Alayerofpr

6、essuresensitiveadhesiveonthesecondsideofthefoam(possiblydifferentfromtheadhesiveonthefirstside),and·Areleaselinercoveringoneorbothoftheadhesivelayers.(Asinglereleaselinerisgenerallyusedwhenthefoamtapeismanufacturedinrollform,andtworeleaselinersareusedwhenitismanufacturedandsoldinshe

7、etform.)Doublesidedfoamtapessometimesusedifferentadhesivetypesdependingontheapplication.Forexample,onesidemaycontainapermanentadhesivewhiletheothersideusesaremovableformulation.Figure1:Doublesidedpressuresensitivefoamtape.Whatseparatestheseproductsfromotherpressuresensitiveproductsi

8、sthefoambackingorca