馬來酸酐熔融接枝EPDM及其離聚物的制備與性能研究.pdf

1、湖北大學碩士學位論文馬來酸酐熔融接枝EPDM及其離聚物的制備與性能研究姓名：劉濤申請學位級別：碩士專業(yè)：材料學指導教師：蔣濤20080601AbstractThecompatibilitybetweenpolyolefinandothermaterialscallbeimprovedviagraftingmodifiedpolyolefintointroducepolarorfunctionallateralgroupTheapplic

2、ationrealmofpolyolefincanbeextendedinthiswayThepresenceofionicgroupinthepolymerst0beblendedenhancethecompatibilityviainermolecularionicinteractionsthatassistoncompatibilizationInthispaperthemelting—graftingofmaleicanhydr

3、ide(MAH)ontoanehylenepropylenedieneterpolymer(EPDM)whichhadbetter孕aftdegreeweregainedTheionomericpolyblendsweregainedwiththewayofblendingmaleatedEPDM(m—EPDM)，zincoxideneutralizedpoly(ethyleneCOacrylicacid)(zn—E從)，zincoxi

4、de，stearicacidandzincstearateInthepresentofstyrene(St)，themelting—graftingofmaleicanhydride(MAH)ontoanehylenepropylene—dieneterpolymer(EPDM)，using25dimethyl2，5di(tert—buylperoxy)hexane(DHBP)asfreeradicalinitiatorwascoduc

5、tedinHaakerheometerFTIRwasusedtocharacterizetheformationofthegraftingmaterials，andthechemicaltitrationmethodwasusedtomeasurethedegreeofgraftingInexperiments，theStconcentration，MAHconcentration，DHBPconcentration，reactiont

6、ime，reactiontemperatureandscrewspeedwerevariedrespectivelyResultsshowedthatwhenMAIlconcentrationwas2phrthegraftingyieldofMAHcouldreach153％andtheMAHconcentrationcouldn’treachtoohighMoreovertheDHBPconcentrationcouldn’treac

7、h02phrTheionomericpolyblendsweredeterminedandtestedbyHaake，physicalpropertiesmachine，F(xiàn)HR，XRDThepresentarticlereportstheresults：ThephysicalpropertiesoftheionomericpoyblendswiththedifferentgraftdegreeofMAHinm—EPDMarediffer

8、entAndthephysicalpropertiesoftheionomericpoyblendswiththedifferentproportionalzincsaltsofmEPDM／Zn—EAAaredifferentThemaxiumoftensilestrengthinionomericpolyblendsis121MPa，andtheelongationatbreakcanreach529％whichismuchbette