The paperdiscusseswhetherbi-orientedPVC,obtainedbymodifyingthestructuresofpolymerschains to enhancethemechanicalpropertiesofunplasticizedPVC,couldsuccessfullyreplacemetallicmaterials in industrialapplicationswhereradioactive fluids areprocessedandanintense field ofionizingradiation is present.Testshavebeencarriedoutinordertostudythebehaviorofacommercialbi-orientedPVC when exposedtoionizingradiations.Anumericalsimulationallowscomparingtheeffectsofradiation expectedonthepipeinnuclearindustryapplicationswiththoseresultingfromtheirradiationtests. Contamination anddecontaminationtestsofbi-orientedPVCincontactwitharadioactivesolutionhave been performedtoo.Resultsshowthatthebi-orientedPVCcanwithstandhigh β and γ radiation doses (up to100kGy)withoutshowingsignificant degradationinmechanicalproperties;bi-orientationof polymers chainsinthebulkofmaterialisnotaffectedeventomuchhigherdoses(250kGy);the decontamination ofthematerialissatisfactory.Theresultssuggestthattestedcommercialbi-oriented PVC couldbeconsideredinnuclearindustryapplications.
A study of the behavior of bi-oriented PVC exposed to ionizing radiation and its possible use in nuclear applications
CAMPI, FABRIZIO;PORTA, ALESSANDRO ANTONIO;
2014-01-01
Abstract
The paperdiscusseswhetherbi-orientedPVC,obtainedbymodifyingthestructuresofpolymerschains to enhancethemechanicalpropertiesofunplasticizedPVC,couldsuccessfullyreplacemetallicmaterials in industrialapplicationswhereradioactive fluids areprocessedandanintense field ofionizingradiation is present.Testshavebeencarriedoutinordertostudythebehaviorofacommercialbi-orientedPVC when exposedtoionizingradiations.Anumericalsimulationallowscomparingtheeffectsofradiation expectedonthepipeinnuclearindustryapplicationswiththoseresultingfromtheirradiationtests. Contamination anddecontaminationtestsofbi-orientedPVCincontactwitharadioactivesolutionhave been performedtoo.Resultsshowthatthebi-orientedPVCcanwithstandhigh β and γ radiation doses (up to100kGy)withoutshowingsignificant degradationinmechanicalproperties;bi-orientationof polymers chainsinthebulkofmaterialisnotaffectedeventomuchhigherdoses(250kGy);the decontamination ofthematerialissatisfactory.Theresultssuggestthattestedcommercialbi-oriented PVC couldbeconsideredinnuclearindustryapplications.| File | Dimensione | Formato | |
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Study of the behavior of bi-oriented PVC exposed to ionizing radiation_11311-787337_Campi.pdf
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