泡棉基材压敏胶带的选用(english,来自外国专业网站)

《泡棉基材压敏胶带的选用(english,来自外国专业网站)》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

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

2、iersofthisproduct.Themostrecognizableapplicationsareforsecuringobjectssuchaspicturesonwallsandattachingplasticbodysidemoldingtoautomobiles.Foamtapeshaveuniquephysicalcharacteristicsthatmakethemappropriatefastenersinsemi-structuralapplicationsaswell.Theseimportantapplicationsincludeshearwallcons

3、tructionforhousingandreplacingmechanicalfastenersinappliances.Manyothersensiblestructuralapplicationsarealsopossible.FoambackedtapeswithPSAononlyonesidecanbeusedasacushioninggasketforsealingandinsulatingobjectssuchaswindowframesonresidentialhomesandautomobiles.Theyareoftenfoundinthedo-it-yourse

4、lfsectionoflocalstoresforhomeweatherstripping.Whetheradhesiveisononeorbothsidesofthefoam,theseproductsmusthavespecialphysicalpropertyrequirementsbothfortheadhesiveaswellasforthefoambacking.Thisarticlewillreviewthevarioustypesoffoamtapesthatarecommerciallyavailable,theirmainapplications,andconsi

5、derationsthatneedtobetakenintoaccountwhenusingtheseproducts.DoublesidedfoamtapesgenerallyconsistoffourcomponentsasshowninFigure1.Theseare:·Thecarriermaterial,whichisafoam,·Alayerofpressuresensitiveadhesiveononesideofthefoam,·Alayerofpressuresensitiveadhesiveonthesecondsideofthefoam(possiblydiff

6、erentfromtheadhesiveonthefirstside),and·Areleaselinercoveringoneorbothoftheadhesivelayers.(Asinglereleaselinerisgenerallyusedwhenthefoamtapeismanufacturedinrollform,andtworeleaselinersareusedwhenitismanufacturedandsoldinsheetform.)Doublesidedfoamtapessometimesusedifferentadhesivetypesdependingo

7、ntheapplication.Forexample,onesidemaycontainapermanentadhesivewhiletheothersideusesaremovableformulation.Figure1:Doublesidedpressuresensitivefoamtape.Whatseparatestheseproductsfromotherpressuresensitiveproductsisthefoambackingorca