Iphrofayili yesipontshi nezingxenye ezinegwebu: Isixazululo Esinamandla Esinqanda Umsindo, I-EPR Engamelani Nesimo sezulu Irabha Engavuthiwe
Isingeniso
Ngokombono wochwepheshe benjoloba, irabha emelene nomsindo, i-ethylene propylene evikela isimo sezulu—irabha eluhlaza ye-EPR—inikeza isisombululo esihle kakhulu sokufaka uphawu, ikakhulukazi kuphrofayela yezingxenye ezinegwebu. Le rabha ifaka i-Mooney viscosity ephezulu, okuqukethwe okuphezulu kwe-ENB, isivinini sokuphulukisa ngokushesha, kanye nezakhiwo eziphakeme zomshini eziqinisekisa ukusebenza kwesikhathi eside nokuqina.
I-High Mooney Viscosity
EPR yerabha eluhlaza ibonisa i-Mooney viscosity ephezulu, eqinisekisa ukucutshungulwa okuhle kanye nezakhiwo zokubumba. Le viscosity ivumela ukuphatha kalula kanye nokukhwabanisa ngesikhathi sokukhiqiza, ukuqinisekisa ukukhiqizwa kabusha kanye nokuvumelana ekukhiqizeni. I-viscosity ephezulu iphinde ibe nomthelela ekusebenzeni okuthuthukisiwe kokuvala, okuyenza ifaneleke izinhlelo zokusebenza ezihlukahlukene.
Okuqukethwe okuphezulu kwe-ENB
I-EPR yerabha eluhlaza iqukethe inani eliphezulu le-ENB (ethylene-propylene-butylene), elinikela ezintweni zayo ezihlukile. I-ENB yengeza ukuguquguquka nokuqina kunjoloba, ithuthukisa izici zayo zokusebenza. Okuqukethwe okuphezulu kwe-ENB kuphinda kwenza irabha imelane nesimo sezulu, iqinisekise impilo ende ezinhlelweni zokusebenza zangaphandle.
I-Fast Curing Speed
EPR irabha eluhlaza ifaka isivinini sokuphulukisa ngokushesha, okusho ukuthi ingacutshungulwa ngokushesha ngaphandle kokudela ikhwalithi. Ijubane lokuphulukisa ngokushesha livumela abakhiqizi ukuthi bafinyelele izikhathi zomjikelezo omfushane, bathuthukise ukukhiqiza, futhi behlise izindleko zokukhiqiza. Ukwengeza, izinga lokwelapha ngokushesha kwerabha liqinisekisa isigxivizo esiqinile nesithembekile lapho ifakwa. I
-High Mechanical Properties
I-EPR yenjoloba eluhlaza ibonisa izakhiwo eziphakeme zemishini, okuhlanganisa amandla aqinile, i-modulus, nobulukhuni. Lezi zakhiwo ziqinisekisa ukuthi irabha ifaneleka ekufakweni okuhlukahlukene kokuvala lapho kudingeka khona izimpawu eziqinile neziqinile. Izakhiwo zemishini ye-EPR yerabha eluhlaza ikwenza kube ukukhetha okuhle kakhulu kokufakwa uphawu kuphrofayela yesipontshi nezingxenye ezinegwebu.
Kafushane
I-EPR eluhlaza okwesibhakabhaka i-Mooney viscosity ephezulu yenjoloba, okuqukethwe okuphezulu kwe-ENB, isivinini sokuphulukisa ngokushesha, kanye nezakhiwo eziphakeme zomshini kuyenza ibe into ekahle yokuvalwa kwezicelo kuphrofayela yesipontshi nezingxenye ezinamagwebu. Ukusebenza okuhle kakhulu kokuvala kwerabha kanye nokumelana nesimo sezulu kuqinisekisa ukusebenza kwesikhathi eside nokuqina ezinhlelweni zokuvala ezihlukahlukene. Ijubane lokuphulukisa ngokushesha livumela abakhiqizi ukuthi bafinyelele izikhathi zomjikelezo omfushane futhi bathuthukise ukukhiqiza, behlise izindleko zokukhiqiza ngenkathi begcina ikhwalithi. Izakhiwo zemishini ziqinisekisa ukuthi irabha ifaneleka ekufakweni okuhlukahlukene kokuvala lapho kudingeka khona izimpawu eziqinile neziqinile. Iphrofayela yesipontshi nezingxenye ezinegwebu ezinerabha eluhlaza ye-EPR zinikeza isisombululo sokugcina sokuvala izinhlelo zokusebenza ezidinga ukulwa nomsindo nesimo sezulu.
