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ID:13730903
大小:152.50 KB
页数:9页
时间:2018-07-24
《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,oneof
2、themajorsuppliersofthisproduct.Themostrecognizableapplicationsareforsecuringobjectssuchaspicturesonwallsandattachingplasticbodysidemoldingtoautomobiles.Foamtapeshaveuniquephysicalcharacteristicsthatmakethemappropriatefastenersinsemi-structuralapplicationsaswell.Theseimportantapplic
3、ationsincludeshearwallconstructionforhousingandreplacingmechanicalfastenersinappliances.Manyothersensiblestructuralapplicationsarealsopossible.FoambackedtapeswithPSAononlyonesidecanbeusedasacushioninggasketforsealingandinsulatingobjectssuchaswindowframesonresidentialhomesandautomob
4、iles.Theyareoftenfoundinthedo-it-yourselfsectionoflocalstoresforhomeweatherstripping.Whetheradhesiveisononeorbothsidesofthefoam,theseproductsmusthavespecialphysicalpropertyrequirementsbothfortheadhesiveaswellasforthefoambacking.Thisarticlewillreviewthevarioustypesoffoamtapesthatare
5、commerciallyavailable,theirmainapplications,andconsiderationsthatneedtobetakenintoaccountwhenusingtheseproducts.DoublesidedfoamtapesgenerallyconsistoffourcomponentsasshowninFigure1.Theseare:·Thecarriermaterial,whichisafoam,·Alayerofpressuresensitiveadhesiveononesideofthefoam,·Alaye
6、rofpressuresensitiveadhesiveonthesecondsideofthefoam(possiblydifferentfromtheadhesiveonthefirstside),and·Areleaselinercoveringoneorbothoftheadhesivelayers.(Asinglereleaselinerisgenerallyusedwhenthefoamtapeismanufacturedinrollform,andtworeleaselinersareusedwhenitismanufacturedandsol
7、dinsheetform.)Doublesidedfoamtapessometimesusedifferentadhesivetypesdependingontheapplication.Forexample,onesidemaycontainapermanentadhesivewhiletheothersideusesaremovableformulation.Figure1:Doublesidedpressuresensitivefoamtape.Whatseparatestheseproductsfromotherpressuresensitivepr
8、oductsisthefoambackingorca
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