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ID:16060765
大小:152.50 KB
页数:9页
时间:2018-08-07
《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,oneofthemajorsup
2、pliersofthisproduct.Themostrecognizableapplicationsareforsecuringobjectssuchaspicturesonwallsandattachingplasticbodysidemoldingtoautomobiles.Foamtapeshaveuniquephysicalcharacteristicsthatmakethemappropriatefastenersinsemi-structuralapplicationsaswell.Theseimportantapplicationsincludeshearwall
3、constructionforhousingandreplacingmechanicalfastenersinappliances.Manyothersensiblestructuralapplicationsarealsopossible.FoambackedtapeswithPSAononlyonesidecanbeusedasacushioninggasketforsealingandinsulatingobjectssuchaswindowframesonresidentialhomesandautomobiles.Theyareoftenfoundinthedo-it-
4、yourselfsectionoflocalstoresforhomeweatherstripping.Whetheradhesiveisononeorbothsidesofthefoam,theseproductsmusthavespecialphysicalpropertyrequirementsbothfortheadhesiveaswellasforthefoambacking.Thisarticlewillreviewthevarioustypesoffoamtapesthatarecommerciallyavailable,theirmainapplications,
5、andconsiderationsthatneedtobetakenintoaccountwhenusingtheseproducts.DoublesidedfoamtapesgenerallyconsistoffourcomponentsasshowninFigure1.Theseare:·Thecarriermaterial,whichisafoam,·Alayerofpressuresensitiveadhesiveononesideofthefoam,·Alayerofpressuresensitiveadhesiveonthesecondsideofthefoam(po
6、ssiblydifferentfromtheadhesiveonthefirstside),and·Areleaselinercoveringoneorbothoftheadhesivelayers.(Asinglereleaselinerisgenerallyusedwhenthefoamtapeismanufacturedinrollform,andtworeleaselinersareusedwhenitismanufacturedandsoldinsheetform.)Doublesidedfoamtapessometimesusedifferentadhesivetyp
7、esdependingontheapplication.Forexample,onesidemaycontainapermanentadhesivewhiletheothersideusesaremovableformulation.Figure1:Doublesidedpressuresensitivefoamtape.Whatseparatestheseproductsfromotherpressuresensitiveproductsisthefoambackingorca
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