【英文标准名称】:StandardTestMethodforDeterminingStrengthofAdhesivelyBondedRigidPlasticLap-ShearJointsinShearbyTensionLoading
【原文标准名称】:用抗拉荷载法在剪切胶粘剂粘接刚性塑料搭接接头的抗剪切强度的标准试验方法
【标准号】:ASTMD3163-2001(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:2001
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D14.40
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:adhesivebonds;plastic;shearstrength;tension;Bondstrength--adhesives(plastic-to-plastic);Sheartesting--adhesives;Tensileproperties/testing--adhesivebonds;Adhesive-bondedplastics;Adhesivejoints;Lap-shearapplications/testing;Rigidplastic
【摘要】:Duetotheincreaseduseofadhesive-bondedplasticsasaresultoftheinherentadvantagesaffordedbybondedratherthanmechanicallyfastenedjoints,particularlythealleviationofstressraisersandstresscracking,thereisaneedforstandardtestsbywhichjointsofvariousplasticsubstratesandadhesivescanbecompared.Thistestmethodisintendedtomeetsuchaneed.Thistestmethodislimitedtotesttemperaturesbelowthesofteningpointofthesubjectadherends,andisnotintendedforuseonanisotropicadherendssuchasreinforcedplasticlaminates.Themisuseofstrengthvaluesobtainedfromthistestmethodasallowabledesign-stressvaluesforstructuraljointscouldleadtoproductfailure,propertydamage,andhumaninjury.Theapparentshearstrengthofanadhesiveobtainedfromagivensmallsingle-lapspecimenmaydifferfromthatobtainedfromajointmadewithdifferentadherendsorbyadifferentbondingprocess.Thenormalvariationoftemperatureandmoistureintheserviceenvironmentcausestheadherendsandtheadhesivetoswellandshrink.Theadherendsandadhesivearelikelytohavedifferentthermalandmoisturecoefficientsofexpansion.Eveninsmallspecimens,short-termenvironmentalchangescaninduceinternalstressesorchemicalchangesintheadhesivethatpermanentlyaffecttheapparentstrengthandothermechanicalpropertiesoftheadhesive.Theproblemofpredictingjointbehaviorinachangingenvironmentisevenmoredifficultifadifferenttypeofadherendisusedinalargerstructuraljointthanwasusedinthesmallspecimen.Theapparentshearstrengthmeasuredwithasingle-lapspecimenisnotsuitablefordeterminingallowabledesignstressesfordesigningstructuraljointsthatdifferinanymannerfromthejointstestedwithoutthoroughanalysisandunderstandingofthejointandadhesivebehaviors.Single-laptestsmaybeusedforcomparingandselectingadhesivesorbondingprocessesforsusceptibilitytofatigueandenvironmentalchanges,butsuchcomparisonsmustbemadewithgreatcautionsincedifferentadhesivesmayresponddifferentlyindifferentjoints.SeeGuideD4896forfurtherdiscussionoftheconceptsrelativetointerpretationofadhesivebondedsingle-lapjoints.1.1ThistestmethodisintendedtocomplementTestMethodD1002andextenditsapplicationtosingle-lapshearadhesivejointsofrigidplasticadherends.Thetestmethodisusefulforgeneratingcomparativeshearstrengthdataforjointsmadefromanumberofplastics.Itcanalsoprovideameansbywhichseveralplasticsurfacetreatmentscanbecompared.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesinparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G31
【国际标准分类号】:83_180
【页数】:3P.;A4
【正文语种】:英语
基本信息
标准名称: | 工业丙烯酸乙酯 |
英文名称: | Ethyl acrylate for industrial use |
中标分类: |
化工 >>
有机化工原料 >>
一般有机化工原料 |
ICS分类: |
化工技术 >>
有机化学 >>
醇、醚
|
替代情况: | ZB/T G17008-1987 |
发布部门: | 国家质量技术监督局 |
发布日期: | 1998-01-01 |
实施日期: | 1999-06-01 |
首发日期: | 1998-11-04 |
作废日期: | 1900-01-01 |
主管部门: | 中国石油和化学工业协会 |
归口单位: | 全国化学标准化技术委员会 |
起草单位: | 北京化工集团有限责任公司东方化工厂 |
出版社: | 中国标准出版社 |
出版日期: | 1900-01-01 |
页数: | 平装16开, 页数:5, 字数:5000 |
适用范围
本标准规定了工业丙烯酸乙酯的要求、采样、试验方法和包装、标志、运输、贮存、安全等。本标准适用于由丙烯酸(丙烯氧化法制成的)与乙醇经酯化反应制得的丙烯酸乙酯。
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所属分类: 化工 有机化工原料 一般有机化工原料 化工技术 有机化学 醇 醚