Iyini impahla ye-EPDM? -Ukuhlaziywa okujulile kwezici kanye nokusetshenziswa kwerabha ye-EPDM
I-EPDM (i-ethylene-propylene-diene monomer) iyirabha yokwenziwa enesimo sezulu esihle kakhulu, i-ozone nokumelana namakhemikhali, futhi isetshenziswa kabanzi kwezezimoto, ezokwakha, zikagesi nakwezinye izimboni. Ngaphambi kokuqonda ukuthi i-EPDM yenziwe ngani, kuyadingeka ukuqonda isakhiwo sayo esiyingqayizivele samangqamuzana nenqubo yokukhiqiza ukuze uqonde kangcono izakhiwo zayo nokusetshenziswa kwayo.
1. Ukwakheka kwamakhemikhali kanye nesakhiwo samangqamuzana e-EPDM
Irabha ye-EPDM ithola igama layo ezingxenyeni zayo eziyinhloko: i-ethylene, i-propylene ne-diene monomers. Lawa ma-monomer enza amaketanga e-polymer anwebekayo ngokusabela kwe-copolymerization. I-Ethylene ne-propylene inikeza ukumelana okuhle kakhulu kokushisa nokufakwa kwe-oxidation, kuyilapho i-diene monomers ivumela i-EPDM ukuthi ixhunywe nge-vulcanisation noma i-peroxide, okwandisa amandla nokuqina kwempahla.
2. Izici zokusebenza ezibalulekile ze-EPDM
Ngenxa yokwakheka kwayo kwamakhemikhali okuyingqayizivele, i-EPDM inohlu lwezakhiwo ezinhle kakhulu eziyenza ivelele emikhakheni eminingi eminingi.I-EPDM inesimo sezulu esihle kakhulu futhi imelana ne-UV, okusho ukuthi iyakwazi ukuchayeka elangeni isikhathi eside. ngaphandle kokuwohloka.EPDM futhi inokumelana okuhle kakhulu kwe-ozone, okuyivumela ukuthi igcine ukusebenza kwayo ezimeni ezinzima zemvelo ngaphandle kokuqhekeka.
Esinye isici esibalulekile ukumelana kwayo namakhemikhali, ikakhulukazi kuma-acids, ama-alkali kanye nezincibilikisi ezihlukahlukene ze-polar. Ngakho-ke, i-EPDM ivame ukusetshenziswa ezimweni ezidinga ukuchayeka isikhathi eside kumakhemikhali.I-EPDM inezinhlobonhlobo zamazinga okushisa okusebenza, futhi ngokuvamile ingasebenza ngokujwayelekile phakathi kuka -40°C no-150°C, okwenza isetshenziswe ikakhulukazi kabanzi ezimotweni. imboni, njengezigxivizo zamafasitela, amapayipi orediyetha, njll.
3. Izicelo ze-EPDM ezimbonini ezahlukahlukene
Ukusetshenziswa okubanzi kwe-EPDM kubangelwa ukuguquguquka kwayo kanye nezakhiwo ezinhle kakhulu zomzimba. Embonini yezimoto, i-EPDM ijwayele ukusetshenziswa ekwenzeni izigxivizo, izigxivizo zezicabha, iziwashi ze-windscreen namapayipi erediyetha. Ngenxa yokumelana nokushisa nokuguga, lezi zingxenye zigcina ukunwebeka nokusebenza kwazo isikhathi eside, zithuthukisa impilo yesevisi yemoto.
Embonini yezokwakha, i-EPDM isetshenziswa kakhulu ekuvimbeleni amanzi ophahleni, iminyango neminyango yamafasitela nezinye izinhlelo zokusebenza ezidinga ukuvinjelwa kwamanzi nokumelana ne-UV. Ukumelana nesimo sezulu esihle nokuguquguquka kuqinisekisa ukuzinza kwesakhiwo nokusebenza kokuvala kwezakhiwo.EPDM iphinde isetshenziswe ezintweni zokushelela zezintambo nezintambo, okuhlinzeka ngokusebenza okuhle kakhulu kokufakwa kukagesi kanye nokumelana namakhemikhali.
4. EPDM ukuvikelwa kwemvelo kanye nentuthuko esimeme
Esimeni samanje sezidingo eziqinile zokuvikelwa kwemvelo, i-EPDM nayo ikhathazekile ngenxa yokuvikelwa kwemvelo kanye namandla entuthuko esimeme. I-EPDM iyinto ekwazi ukugaywa kabusha, inqubo yokukhiqiza ayiwona amagesi ayingozi kanye nemfucuza, ngokuhambisana nesidingo somphakathi wanamuhla sokuvikelwa kwemvelo. Ngokuthuthuka okuqhubekayo kwenqubo yokukhiqiza, ukusetshenziswa kwamandla nezinsiza ze-EPDM nakho kuye kuncishiswa kancane kancane, okunomthelela ekuthuthukisweni okusimeme kwemboni.
Isiphetho
Iyini impahla ye-EPDM? Kuyimpahla yerabha yokwenziwa esebenza kahle kakhulu kanye nezinhlelo eziningi zokusebenza. Ngokumelana nesimo sezulu, ukumelana namakhemikhali kanye nobungane bemvelo, idlala indima ebalulekile ezimbonini ezihlukahlukene. Kungakhathaliseki ukuthi kusembonini yezimoto, imboni yezokwakha, noma izinkundla zikagesi neze-elekthronikhi, i-EPDM isiphenduke into ekhetheke kakhulu ngenxa yokusebenza kwayo okuhle.