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《缓冲包装材料的品种及性能-〖包装结构〗-帕克乐包装结构,缓冲包装,设计论坛,包装.》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。
1、缓冲包装材料的品种及性能-K包装结构1-帕克乐包装结构，缓冲包装，设计论坛，包装商务,设计网，包装采购(CushioningpackagingmaterialvarietyandperformancepackagingstructureParkeLepackagingstructure,packaging,packagingdesignforum,business,VarietiesandpropertiesofcushioningpackagingmaterialsTherearemanykindsofbuffermaterials,andit
2、isdifficulttodescribethem・Thefollowingaresomecommoncushioningmaterialsusedinpackaging:(1)polystyrenefoamPolystyrenefoamismadeofpolystyreneresinasthemainbody,addingfoamingagentandotheradditives,itisthemostwidelyusedbuffermateria1.Ithasaclosedcellstructure,waterabsorption,water
3、resistanceisexcellent;thedensityissmall,usually0.015'0.03;goodmechanicalstrength,excellentcushioningproperties;goodprocessability,easymolding;goodcolortemperature,strongadaptability,excellentantiradiationetc・・Butitemitsstyrenegasthatpollutestheenvironment・Polystyrenefoamplast
4、iciswidelyusedinvariousprecisioninstruments,meters,householdappliancesandothercushioningpackaging,canalsobedirectlymadeintocups,plates,boxesandotherpackagingcontainerstopackthings・(2)polyethylenefoamplasticsPolyethylenefoamismadeofpolyethyleneresin,addedfoamingagent,cross-lin
5、kingagentandotheradditives・Itisaveryimportantbuffermateria1.Ithastheadvantagesoflowdensity,theminimumis0.01/cm3;buffer,heatresistance,lowwaterabsorption;chemicalstability,notsusceptibletocorrosion;goodmechanicalproperties,tough,flexible,frictionresistance;goodprocessingperfor
6、mance,easymolding;lowcostetc・・Polyethylenefoamcushioningpackagingiswidelyusedinprecisioninstruments,householdappliances,glassandceramicproducts,handicrafts,andothervaluablesinthepackagingcanbemade;cushionpackagingasliningmaterial;alsocanbemadeintoabufferbag,bufferplateboxesan
7、dotherpackagingcontainers;alsocanbemadeintofrozenfoodandhotfoodcontaineretc・・(1)polyurethanefoamPolyurethanefoamismadebypolymerizationandfoamingofisocyanateandhydroxylcompound・Accordingtoitshardness,itcanbedividedintotwocategories,softandhard,amongwhichsoftisthemainvariety・Ge
8、nerallyspeaking,ithasexcellentelasticity,softness,elongationandcompr
