3M胶的性能及使用

3胶带与胶粘剂产品单面胶带工业胶带–聚氯乙烯胶带–聚乙烯胶带–金属箔胶带–聚酯胶带–聚四氟乙烯胶带–超高分子量聚乙烯胶带–玻璃布基胶带–特殊胶带保护膜脚垫产品遮蔽胶带纤维胶带封箱胶带标签材料双面胶带薄型胶带–纯胶膜产品–纸基胶带–塑料基材胶带–两面粘性不同的胶带–导电胶带*–导热胶带*泡绵胶带–VHBTM胶带–丙烯酸泡绵胶带–氯丁及聚氨酯泡绵胶带–聚氯乙烯泡绵胶带–聚乙烯泡棉胶带紧固用材料–蘑菇搭扣–尼龙搭扣胶粘剂非结构胶粘剂–水分散型–溶剂型–喷胶及其维护用品–热熔胶及打胶枪–热熔胶膜*密封胶–空气干燥型–潮气固化型结构胶–快干胶–单组分环氧及聚氨酯胶–双组分胶及打胶器–电子级环氧胶*–光固化胶*–热熔胶膜*3胶带与胶粘剂产品---单面胶带工业胶带–聚氯乙烯胶带(471/5700/5702)–聚乙烯胶带(481/483)–金属箔胶带(425/431/363/FE0291)–聚酯胶带(396/851/8402/8902/1280)–聚四氟乙烯胶带(5451/5490)–超高分子量聚乙烯胶带(5421/5430)–玻璃布基胶带(361/365/367FR)–特殊胶带(5413/5414/5419/394/5800)保护膜(2104/5112/2A04)脚垫产品(SJ-5017/SJ-5312/SJ-6344)遮蔽胶带(2142/4737T/226)纤维胶带(8915/8934)封箱胶带(371/370)标签材料(7815/7871/3921)3胶带与胶粘剂产品---双面胶带薄型胶带–纯胶膜产品(467MP,VHB胶膜9460，9471LE,9485PC)–无纺基材胶带(9448,9080)–塑料基材胶带(9495MP/9490LE/9500PC)–两面粘性不同的胶带(/9731/9425)–导电胶带*(9703/9713/7303/5552R)–导热胶带*(9882/9885/9892FR/5507)泡绵胶带–VHBTM胶带(VHB4945,4941,4952)–丙烯酸泡绵胶带(Y4609/4615)–氯丁橡胶基材(4965/4992)–聚氨酯泡绵胶带(4026/4032)–聚氯乙烯泡绵胶带(4416)–聚乙烯泡棉胶带(4466/4496)紧固用材料–蘑菇搭扣(SJ-3540/SJ-3550)–尼龙搭扣(SJ-3518/SJ-3519)3胶带与胶粘剂产品---胶粘剂非结构胶粘剂–水分散型(FB2000/SP7533)–溶剂型(4799/4475/4693)–喷胶及其维护用品(#77,#75)–热熔胶及打胶枪(3764/3748/3779)–热熔胶膜*(TBF560/615/845)密封胶–空气干燥型(800/2084)–潮气固化型(5300)结构胶–快干胶(CA40H)–单组分环氧及聚氨酯胶(2214/TS-230)–双组分胶及打胶器(DP100/190/270/460)–电子级环氧胶*(DP460EG)–光固化胶*(LC1110/1214)–热熔胶膜*(588/AF42)3工业市场部压敏胶技术原理压敏胶的定义DefinitionofPSA拥有持久的高粘性Aggressivelyandpermanentlytacky应用时只需用手或手指施压Adhereswithfingerorhandpressure不需通过水,溶剂或加热活化Requiresnoactivationbywater,solventorheat有牢靠的粘接力Exertsastrongholdingforce有足够的内聚力和弹性Hassufficientcohesivenessandelasticity压敏胶的优点PSAAdvantagesReadytouse,nomixingorbrushingisrequired迅速施胶，无需混合或涂刷。Consistentamountofadhesive均匀的胶量。Lessmessythansuperglueandcontactcement比胶水干净。Canbediecutintospecificshapes可模切成特殊形状。Staysviscoelasticwhicheliminatesbrittlefracturepossiblewithepoxies,hotmeltsandcyanoacrylates具有粘弹性，消除脆性。Lessodorduringuse使用时低气味。3M粘性和粘弹性ViscosityandVisco-elasticityMaximumMaximum粘性AdhesionProperties内聚力CohesionProperties软Soft硬Firm压敏胶PressureSensitiveAdhesives粘性Viscous粘弹性Visco-elastic弹性Elastic固体状SolidViscosityandShearStrengthLowViscousMaterials(e.g.Water)–Floweasily–Donotneedrubdownpressure–NoshearstrengthHigherViscousMaterials(e.g.Oil,Honey)–Requiremoderatepressuretoflow–Littleshearstrength–FailundercontinuousshearloadVisco-elasticMaterials(e.g.PressureSensitiveAdhesive)–Requireconsiderablerub-downpressure–Requiredwelltime–WellbalancedshearpropertiesNon-viscousMaterials(e.g.curedadhesives)–Noflowcharacteristics–Notsticky–Maximumshearstrength粘接力和内聚力AdhesionandCohesion内聚力Cohesion材料自身分子之间的吸引力压敏胶被粘物A被粘物B压敏胶被粘物A被粘物B粘接力Adhesion存在两种不同表面之间的吸引力MODESOFFAILUREAdhesiveFailureSubstrateFailureCohesiveFailure外力的种类1)剪切2)正拉3)杠杆力4)剥离TensileShearCleavagePeel剥离强度与剪切强度的测试PeelvsShearTest剥离强度Peel衡量measures粘接力Adhesion剪切强度Shear衡量measures内聚力Cohesion静态剪切强度(StaticShearStrength)-----反映内聚力,持粘性TimerequiredtoshearadefinedareaoftapefromatestpanelatconstantloadVariables变量–Load载荷–TestPanelMaterialandSurfaceConditions试验板材及表面状况–Temperature温度LoadTapeTestPanel动态剥离强度(DynamicPeelAdhesion)----反映粘性,操作方便ForcerequiredtopeelstandardareaoftapefromatestpanelatspecificangleandconstantspeedVariables变量–Speed剥离速度–TestPanelMaterialandSurfaceConditions–Temperature180oPeel剥离90oPeel剥离HowPSABonds?AdhesivemustFLOWtoCONTACTsubstrateAdhesive-SubstrateINTERACTION初粘力与终粘力InitialandUltimateAdhesion初期粘性无驻留时间InitialAdhesionNoDwellTime最终粘性驻留时间:UltimateAdhesion72小时/70癈SoftandFirmAdhesivesSoftAdhesive–Goodimmediatecontact–Highinitialbondstrength–NeedslittleornodwelltimeFirmAdhesive–Lessimmediatecontact–Lowinitialbondstrength–Requireslongerdwelltime软性与硬性压敏胶SoftandFirmAdhesives驻留时间DwellTime软性胶Soft硬性胶FirmAdhesionLevel粘力压敏胶的种类PressureSensitiveAdhesive橡胶类RubberAdhesives–天然胶NaturalRubber–合成橡胶SyntheticRubber丙烯酸类AcrylicAdhesives–纯丙烯酸类StandardAcrylic–改良丙烯酸类ModifiedAcrylic硅胶类SiliconeElastomerAdhesives胶粘剂类别橡胶型Rubber初粘性好适合多种材质成本低耐温90°C耐化学品差耐紫外差耐老化性能差适用于室内丙烯酸型Acrylic耐久性能优异粘接多种材质耐高温,可达230°C优异的耐紫外和化学品初粘性略低成本适中可用于户外有机硅型Silicone耐高温,260°C耐低温耐老化优异的耐紫外和耐溶剂性能初粘性一般成本高有机硅胶丙烯酸型橡胶型温度耐温性胶粘剂类型表面能SurfaceEnergy高表面能HighSurfaceEnergy容易黏接Easy-to-adhere金属Metals聚碳酸酯Polycarbonate聚酯Polyester聚氯乙烯PVC聚氨酯Polyurethane聚乙烯Polyethylene聚苯乙烯Polystyrene聚丙烯Polypropylene聚四氟乙烯Teflon低表面能LowSurfaceEnergy难以黏接Hard-to-adhere表面结构与压敏胶的厚薄度粗糙的表面TexturedSurface薄ThinAdhesive有限度的接触LimitedContact厚ThickAdhesive最大接触面积MaximumContact如何取得最大的接触面积MaximisationofContactArea时间Time–胶需要时间流动Foradhesivetoflow温度Temperature–高温可以减低胶的粘度Decreaseadhesiveviscosity–促进胶的流动性Acceleratesadhesiveflow–促进胶的润湿Improvewetting压力Pressure–促进胶的流动性Acceleratesadhesiveflow–促进胶的润湿Improvessurfacewetting–避免汽泡的产生Eliminatestrappedair压力粘接失败的原因?WhatCausesBondFailure?压敏胶与底材不匹配Adhesive-SubstrateIncompatibilty表面平整度SurfaceTexture表面污染SurfaceContamination–脱模剂MoldReleaseAgent–尘埃DustParticles增塑剂迁移PlasticiserMigration–软质聚氯乙烯FlexiblePVC–橡胶Rubber•驻留时间dwelltime•压力rubdownpressure•温度temperature•施工环境environment压敏胶的选择底材-----粘接难易程度（高/低表面能）应用环境和使用寿命-----室内/户外、紫外线、耐温性最终产品-----暂时/永久粘接、透明/颜色工艺流程-----模切（离型纸）、基材、操作速度、环境清洁成本-----厚度、面积等3工业市场部3双面胶带3M双面胶带厚型双面胶带(14~250mils)–VHB强力双面胶带VH