ߡනǖ762008-10-30גߛݴጱଉᅚဗDŽUHMWPEDžਏᆶଆࡻڦิ၎ඹႠĂࣅბ࿘ۨႠĂ؋ऍႠĂఱఉႠतఱޫ์ႠLjඇ࠲বዃ्༹࣑ኧ௬ՓᆩڦଙLjᆌᆩᇀට߾ợ࠲বڦኲᅙᆶ40ܠڦ૦๏[1]ăܸLjሞڦ๑ᆩࡗײዐሰׯڦఉᅜतఉႈओLjᅟᆅഐࠡዊමLj݀ิਪۯLjܸٗेዘକ࣒ኁڦས੮Ljইگକට߾࠲বڦ๑ᆩం[2-4]ăኄٝ๑ට்ლ൱ิఊ։ბႠీ߸ᆫᅴڦට߾࠲ব༺پଙLjईܔ၄ᆶଙႜ߀ႠLjᅜٳڟ༵ߛଙఱఉႠڦణڦăణമLj๘হฉܔᅅᆩUHMWPEڦఊ։ఉႠీڦ߀Ⴀݴྺ߀Ⴀࢅ߀Ⴀă߀ႠᆼݴྺࡗᄟࣅĂ౾वࢅޖቷǗ߀Ⴀᅃӯኸགଙ߀ႠăഄዐLjޖቷీ၂ዸ༵ߛUHMWPEڦఱఉႠ[5]ăԨ࿔֑ᆩ˹-พ၍ܔᅅᆩUHMWPEႜޖቷتLjჺ৯ޖቷܔᅅᆩUHMWPE૰ბࢅิఊ։ბႠీڦᆖၚă1ํᄓևݴ1.1ᇱଙUHMWPELjݴጱଉ5000000LjெࡔTiconaࠅິă1.2ᅏഗᇑยԢඤუฏୗLjZT-40-20YBLjฉ࡛ץࣀۉୗᆶ၌ࠅິǗཞօඤݴဆᅏLjSTA409CLjڤࡔNetzschࠅິǗྲఊ։ఉᄓऐLjUMT-IILjெࡔCETRࠅິǗۉጱྤీᄓऐLjWDW-20Ljؾוᄞᄓᅏഗᆶ၌ࠅິă1.3ᄣԢॽUHMWPEݹଙጎఇਏLj࿒ူ5MPaᇨუ15minǗࢫLjॽఇਏݣेඤୗዐLjሞ200ņူԍ࿒2hǗໜࢫLjॽఇਏൽLjᅜ10MPaԍუఇਏ࿒܈ই40ņᅜူLjनڥׯ႙ᄣăॽᄣሞ࿒ĂഘዐLj֑ᆩ˹-พ၍ႜޖቷLjޖቷवଉྺ100kGyă1.4ৗ܈֪֑ۨᆩཞօඤݴဆᅏ֪ۨᄣڦDSC൸၍ăॽޖቷגߛݴጱଉᅚဗڦิఊ։ბႠీჺ৯StudyonBiotribologicalPropertyofIrradiationCrosslinkedUHMEPEएূၜణǖڍࠑᒬཨመߥ۲᧚᧗ཁᮉᄫὈፕኁ०ǖϓᒬ˗ úὋႃὋᔙᄡ̠ۡὋӯܢᆐቂၶὋ˞᜵̯̂ၶྫྷߥழ᭦ᄉᆐቂnjWpm/48!Op/2!)Tvn/312*Kbovbsz!!311:ృጲݿNiZifeng-ዐࡔઁᄽٷბऐۉ߾ײბᇾఊ։ბᇑ੍Ⴀ߾ײჺ৯ఊ։ბࡔॆዘۅํᄓิఊ։ბዐ႐Ljॿ໋Ⴘዝ221116-BiotribologyCenter,StateKeyLaboratoryofTribology,InstituteofTribologyandReliabilityEngineering,CollegeofMechanicalandElectricalEngineering,ChinaUniversityofMiningandTechnology,Xuzhou221116,ChinaNJ᜵:֑ᆩ˹-พ၍ܔᅅᆩגߛݴጱଉᅚဗDŽUHMWPEDžႜޖቷتLjჺ৯କޖቷܔᅅᆩUHMWPE૰ბႠీࢅิఊ։ბႠీڦᆖၚăࡕǖޖቷ๑UHMWPEڦৗ܈Ăᆘ܈ĂڑႠႠీĂੇࣄీ૰ࢅఊ։ఉႠీ༵ߛLjڍইگକUHMWPEڦ໒ႠႠీăAbstract:Themedicalultra-highmolecularweightpolyethylene(UHMWPE)wasirradiationcrosslinkedby˹-rays,theeffectofirridiationcrosslinkingonthemechanicalpropertyandbiotribologicalpropertyofUHMWPEwasstudied.Theresultsshowthatirradiationcrosslinkingimprovesthecrystallinity,hardness,elasticproperty,anti-scratchpropertyandwearresistancofUHMWPE,butdecreasestheplasticpropertyofUHMWPE.С᪃ជ:גߛݴጱଉᅚဗǗޖቷǗิఊ։ბKeywords:UHMWPE;Irradiationcrosslinking;Biotribologyࣅ֪࿔ቤՊࡽǖ1005-3360DŽ2009Dž01-0076-03ಕខᆉ:A˖ڎѫዜՁ:TQ325.1277311:!2ሆ!ڼ48ਝ!ڼ2DŽጺڼ312Džޖቷגߛݴጱଉᅚဗڦิఊ։ბႠీჺ৯UHMWPEᄣDŽሀ5~10mgDžٗ࿒ेඤ180ņLjื࿒୲10ņ/minăٗDSC൸၍ฉऺ໙30~170ņݔྷాڦဌඤރ௬ओLjᇑᅙኪ100%ৗڦUHMWPEᄣڦභබඤܔԲLjनڥڟԥ֪ᄣڦৗ܈xLjनDŽ1Dž๕ዐLjŗHĊĊ֪ᄣڦৗභබඤǗŗHcĊĊ100%ৗᄣڦභබඤLjྺ291J/gă1.5ᆘ܈֪ۨუᆘ܈֪ӀENISO2039Ċ1Քጚሞྲఊ։ՔጚᄓऐฉႜLjᆩ০ྺDŽ5.0Ġ0.05DžmmڦZrO2༩ٍ൰ă֪ࡗײዐLjံॽᄣDŽ40mmġ50mmġ4mmDžݣሞ֪ೝฉǗࢫӝ༩ٍ൰ᅜ9.8Nፕᆩ૰უUHMWPEᄣ௬ժԍ3sǗໜࢫॽፕᆩ૰ሺ132Nժԍ30sࢫႂሜǗሞᄓࡗײዐLjऻუศ܈Ljሶუᆘ܈࣑໙ྺǖDŽ2Dž๕ዐLjHĊĊუᆘ܈LjMPaǗDĊĊ൰০LjmmǗhmaxĊĊፌٷუศ܈LjmmǗPmaxĊĊፌٷፕᆩ૰LjNă1.6؋უ२ൎഽ܈֪؋უ२ൎႠీ֪ᅈASTMF2183Ċ02ՔጚሞۉጱྤీᄓऐฉႜăံLjॽೌጒUHMWPEᄣDŽ০6.4mmLjࢩ܈1mmDžҾጎሞጆᆩॄਏዐLjස1๖ǗࢫӝॄਏݣሞᄓऐฉႜუेሜLjუ࿋ᅎ܈ྺ0.5mm/minLjཞ้ऻᄣڦሜࢁ-࿋ᅎ൸၍ăⴤᖴ˖2.5mmUHMWPE䈅ṧᓖ˖1.0mmⴤᖴ˖6.4mm䙏⦷˖0.5mm/minⴤᖴ˖3.8mmᒣⴤߢཤ1؋უ२ൎᄓॄਏ๖ᅪ'JH4DIFNBUJDESBXJOHPGUIFIPMEFSPGUIFQVODITIFBSJOHUFTUJOHEFWJDF1.7ࣄഽ܈ᄓࣄᄓৎຼںఇెକఉ૭ఉऐڦڇ߲ᆘዊྲཫ༹ईఉ૭ሞްࢇଙ௬ڦఉࡗײăፕྺްሗఉࡗײڦ०ࣅLjᅙׯྺኙଙఊ։ፆ૰ईఱఉႠڦዘᄲኮᅃăԨࣄᄓሞఊ։ఉᄓऐฉႜLjࣄኍॖ০ྺ400̂mLj݆ၠፕᆩ૰1NLjࣂۯ܈0.2mm/săࣄဣຕ̂ᆯူ๕ऺ໙ǖDŽ3Dž๕ዐLjFfĊĊࣄፆ૰LjNǗFNĊĊ݆ၠፕᆩ૰LjNă1.8ఊ։ఉႠీ֪ᄣڦఊ։ఉႠీ֪ሞఊ։ఉᄓऐฉႜăൽ০ྺ4mmڦSi3N4༩ٍ൰ፕྺܔఊଙLj֑ᆩྫްࣂۯఊ։ᄓఇ๕ăᄓཉॲྺǖ࿒Lj25%ၭეൣාࣂLj݆ၠेሜ૰ྺ19.8NLjࣂۯ܈10mm/sLjࣂۯਐ10mmLjᄓ้क़2hLjཞ้ऻఊ։ဣຕLjժᆩMicroXAM௬ෙྼႚஸᅏ֪ଉఉ༹ओLjᆩ௮ۉጱ၂ྲ࠵ִఉ௬ႚஸă2ࡕᇑ༪ஃ2.1ޖቷܔUHMWPEৗ܈ࢅᆘ܈ڦᆖၚ1ଚକޖቷമࢫUHMWPEڦৗ܈ࢅᆘ܈ڦՎࣅăٗ1ዐᅜੂLjޖቷࢫUHMWPEڦৗ܈ࢅᆘ܈ۼᆶሺेLjݴ՚༵ߛକ13.03%ࢅ3.92%ăኄᅺྺǖޖቷڞዂUHMWPEݴጱ૾ଛLjܸٗ๑ڥኄၵႎႚׯڦݴጱ૾ీࠕ߸ࡀሶںዘႎಇଚLjႚׯৗ༹Ǘৗ܈ڦሺेݴጱ૾ڦಇଚ߸ᆶႾٙLjᆘ܈ᄺࣷໜኮ༵ߛă1ޖቷമࢫUHMWPEڦৗ܈ࢅᆘ܈5BC$SZTUBMMJOJUZBOEIBSEOFTTPGJSSBEJBUFEBOEVOJSSBEJBUFE6).81&6).81&ፆంऎᆵऎ /噝NNᣢཱ̓ᐎґddᣢཱ̓ᐎՐdd78ޖቷגߛݴጱଉᅚဗڦิఊ։ბႠీჺ৯2.2ޖቷܔUHMWPE२ൎႠీڦᆖၚ2ߴକޖቷമࢫUHMWPEڦ؋უ२ൎႠీຕăٗ2ዐᅜੂLjޖቷࢫLjUHMWPEڦ؛๔ߑ܈Ăᆘࣅߑ܈ࢅट၌ሜࢁݴ՚༵ߛକ13.7%Ă12.1%ࢅ11.8%Ljڍट၌࿋ᅎইگକ22.7%ăኄᅺྺǖUHMWPEڦڑႠ༬Ⴀৗ၎ႚༀڦᆖၚLjܸ໒Ⴀ༬Ⴀݥৗ၎ႚༀڦᆖၚăޖቷᆅഐৗ܈ڦ༵ߛLjܸٗ؛๔ߑ܈ࢅᆘࣅߑ܈ᄺໜኮ༵ߛǗܸLjޖቷࣷইگUHMWPEڦჽቛႠLjᅺܸഄट၌࿋ᅎᄺ၎ᆌইگă2ޖቷമࢫUHMWPEڦ؋უ२ൎႠీ5BC1VODITIFBSJOHQSPQFSUJFTPGJSSBEJBUFEBOEVOJSSBEJBUFE6).81&6).81&ѹݼѷऎ /噝NNᆵӐѷऎ /噝NNᬌᣑᕲ/ᬌͮሧNNᣢཱ̓ᐎґddddᣢཱ̓ᐎՐdddd2.3ޖቷܔUHMWPEఊ։ბႠీڦᆖၚ3ߴକޖቷമࢫUHMWPEڦࣄဣຕࢅఉ༹ओăٗ3ᅜੂLjޖቷࢫLjUHMWPEڦੇࣄፆ૰၂༵ߛăኄᅺྺǖޖቷ༵ߛକUHMWPEڦৗ܈ࢅᆘ܈LjሺٷକUHMWPEڦئ٪ఇଉLjᅺܸഄੇࣄీ૰ᄺڥᅜ༵ߛă3ޖቷമࢫUHMWPEڦࣄဣຕࢅఉ༹ओ5BC4DSBUDIDPFGGJDJFOUTBOEXFBSWPMVNFPGJSSBEJBUFEBOEVOJSSBEJBUFE6).81&6).81&Ѳጆஜᇛ૮ͳሤNNᣢཱ̓ᐎґddᣢཱ̓ᐎՐdd2၂๖କUHMWPEᄣఉ௬ڦෙྼႚஸLjᅈُ૧ᆩMicroXAMॲऺ໙ఉ༹ओăޖቷ༵ߛକUHMWPEڦఱఉႠీăሞ25%ၭეൣාࣂཉॲူLjޖቷࢫUHMWPEڦఉ༹ओইگକ34%ă3ߴକޖቷമࢫUHMWPEᄣఉ௬ڦSEMႚஸă࿄ޖቷڦUHMWPEᄣ௬၂ڥփೝኝLjᆶႹܠࠏ֣ࢅྲଛ࿖Lj९ೃહगǗሞఊ։ࡗײዐڟთ࣍ᆌ૰ፕᆩLjํाথة൶݀ิᅃۨײ܈ڦ໒ႠՎႚLjໜጣᅃօڦఉLjUHMWPE֫ႚׯ၂ྲଛ࿖Ljժሞথة௬ူકቛLjፌዕԊྃႚׯఉႈăޖቷ๑UHMWPEݴጱ૾क़ׂิLjፆҹକ္ྼଛ࿖ڦׂิࢅકቛǗཞ้ᆯᇀᆘ܈ڦሺेLjఉ௬߸ೝኝă2UHMWPEᄣఉ௬ڦෙྼႚஸ'JH%NPSQIPMPHZPGUIFXPSOTVSGBDFPG6).81&TBNQMFBὈలᣢཱ̓ᐎCὈᣢཱ̓ᐎՐ3ޖቷമࢫUHMWPEᄣఉ௬ڦSEMቷೌ'JH4&.QIPUPTPGUIFXPSOTVSGBDFTPGJSSBEJBUFEBOEVOJSSBEJBUFE6).81&TBNQMFT3ஃDŽ1DžDSC֪ࡕLjޖቷ༵ߛକUHMWPEڦৗ܈ăDŽ2Džᆘ܈ࢅ؋უ२ൎ֪ࡕ၂๖LjޖቷሺेକUHMWPEڦᆘ܈ࢅڑႠႠీLjڍইگକUHMWPEڦ໒ႠႠీăDŽ3Džఊ։ఉࡕLjޖቷ༵ߛକUHMWPEڦੇࣄీ૰ࢅఊ։ఉ༬ႠăԟᏥὙ-J4#VSTUFJO)6MUSBIJHINPMFDVMBSXFJHIUQPMZFUIZMFOFUIFNBUFSJBMBOEJUTVTFJOUPUBMKPJOUJNQMBOUT++#POF+PJOU4VSHN .D,FMMPQ)$BNQCFMM11BSL4)FUBM5IFPSJHJOPGTVCNJDSPOQPMZFUIZMFOFXFBSEFCSJTJOIJQUPUBMIJQBSUISPQMBTUZ+$MJO0SUIPQ+BTUZ.#SBHEPO$#VSLF%FUBM*OWJWPTLFMFUBMSFTQPOTFTUPQPSPV