Njengoba izintambo zikagesi ezisebenza ngamandla aphakathi naphezulu, izintambo zikagesi ezintsha, izintambo zikaloliwe, kanye nengqalasizinda yokuxhumana ziqhubeka nokukhula, abakhiqizi bezintambo bagcizelela kakhulu ukuthembeka kwesikhathi eside kwezinto zekhebula. Ngaphezu kwalokhoIzithako zokufakelwa kwe-XLPE, ama-semiconductive shielding shielding compounds adlala indima ebalulekile ekunqumeni ukusatshalaliswa kwensimu kagesi, ukusebenza kokushisa, kanye nokuphila kwesikhathi eside kwezintambo zikagesi.
I-Ethyl Acrylate (EEA) isetshenziswa kabanzi njenge-resin eyisisekelo yamakhemikhali okuvikela asebenza kancane kumakhebula kagesi e-XLPE aphakathi nendawo aphezulu. Ngenxa yokuhambisana kwayo okuhle kakhulu kokugcwalisa, ukumelana nokuguga kokushisa, ukuguquguquka kokushisa okuphansi, kanye nokusebenza okuzinzile kokucubungula, i-EEA isibe enye yezinto ezibalulekile ze-polymer ezisetshenziswa kuma-compound ekhebula asebenza kahle.
Kungani i-EEA isetshenziswa kuma-Semiconductive Shielding Compounds?
I-EEA iyi-polar ethylene copolymer ekhiqizwa yi-free-radical copolymerization ye-ethylene ne-ethyl acrylate ngaphansi kwezimo zokucindezela okuphezulu. Ukwethulwa kwamaqembu e-polar ester kuchungechunge lwe-polymer kunikeza i-EEA izinzuzo eziningana ngaphezu kwe-LDPE ne-EVA evamile, okwenza ifaneleke kakhulu kuma-compounds okuvikela angenawo ugesi.
Isakhiwo sayo se-polar sithuthukisa ukuhambisana nomnyama wekhabhoni oqhubayo, okuvumela ukuthi i-filler isakazeke ngokulinganayo futhi yakhe inethiwekhi eqhubayo eqinile. Lokhu kusiza ukugcina ukuhanjiswa kukagesi okuhambisanayo kuyo yonke ingqimba yokuvikela ye-semiconductive.
I-EEA iphinde inikeze ukuguquguquka okuhle kakhulu kwezinga lokushisa eliphansi, ukumelana nokuqhekeka kokucindezeleka kwemvelo (ESCR), kanye nokumelana nokuguga kokushisa, okuvumela ungqimba lokuvikela ukuthi lugcine izakhiwo zalo zemishini kanye nogesi ngesikhathi sesevisi yesikhathi eside. Uma kuqhathaniswa ne-EVA, i-EEA inikeza ukuzinza okungcono kokushisa ngaphakathi kwezinga lokushisa elijwayelekile lokukhipha ikhebula futhi ayikhiphi imikhiqizo ebolile njenge-acetic acid ngesikhathi sokucubungula, okwenza kube lula kakhulu ukusebenzisa imishini.
Izicelo Eziyinhloko ze-EEA ezintweni zekhebula
Ukusetshenziswa okuyinhloko kwe-EEA embonini yekhebula kuyi-resin eyisisekelo yamakhemikhali okuvikela asebenzisa i-semiconductive asetshenziswa ezintanjeni zamandla ze-XLPE eziphakathi nendawo neziphezulu.
Ikhebula lamandla elijwayelekile eliphakathi noma eliphezulu liqukethe isivikelo somqhubi, ukufakelwa kwe-XLPE, isivikelo sokufakelwa, kanye nesikrini sensimbi. Njenge-polymer eyisisekelo kuma-compounds okuvikela angenawo ugesi, i-EEA ithuthukisa ukusabalala komnyama wekhabhoni oqhubayo, ithuthukisa ukuzinza kukagesi kwesendlalelo sokufakelwa, futhi ikhuthaza ukunamathela okuqinile ku-insulation ye-XLPE. Lezi zici zisiza ukunciphisa ingozi yokukhishwa kwengxenye futhi zithuthukise ukuthembeka kwesikhathi eside kohlelo lokufakelwa kwekhebula.
Ngaphezu kwezintambo zikagesi, i-EEA isetshenziswa nasezintanjeni zikagesi ezintsha, ezintanjeni zikaloliwe, nakwezinye izinto zezintambo ezisebenza kahle kakhulu.
Kungani Kusetshenziswa Ama-Semiconductive Shielding Compounds E-EEA Kakhulu?
Njengoba abakhiqizi bekhebula beqhubeka nokuphishekela ukuthembeka okuphezulu, i-EEA isibe ukukhetha okuthandwa kakhulu kwamakhemikhali okuvikela asebenza kancane kancane. Ukuhambisana kwayo okuhle kakhulu nomnyama wekhabhoni, ukumelana nokuguga okushisa, ukuguquguquka kwezinga lokushisa eliphansi, kanye nokuqina kokucubungula kuvumela amakhemikhali okuvikela ukuthi alondoloze ukusebenza okufanayo ngaphansi kwezimo zokusebenza ezidinga amandla.
Enye inzuzo ebalulekile ukunamathela kwayo okuqinile kwe-interfacial ku-XLPE insulation, okusiza ukunciphisa amaphutha esibonakalayo futhi kunciphise ingozi yokukhishwa kwengxenye. Uma ihlanganiswe nefasitela layo elibanzi lokucubungula, i-EEA iphinde ifake isandla ekuthuthukisweni kokuqina kwe-extrusion kanye nokuvumelana okukhulu komkhiqizo, okwenza kube yi-resin eyisisekelo ekhethwayo yamakhemikhali okuvikela i-semiconductive kumakhebula kagesi aphakathi naphezulu.
Ukucatshangelwa Kokucubungula i-EEA
Ukuze kukhuliswe ukusebenza kwe-EEA kuma-cable compounds, abakhiqizi kufanele bakhethe ibanga elifanele ngokusekelwe kokuqukethwe kwe-ethyl acrylate (EA), izinga lokugeleza kokuncibilika (i-MFR), ukwakheka kwekhebula, kanye nezidingo zokucubungula. Amazinga okushisa okukhipha kufanele futhi alawulwe ngaphakathi kobubanzi obunconywayo ukuze kuvinjelwe ukuwohloka kokushisa.
Kumakhemikhali okuvikela agcwele kakhulu, kunconywa ukomisa kahle ngaphambi kokukhipha ukuze kuncishiswe amabhamuza kanye nokukhubazeka kobuso. Kumakhemikhali okuvikela ahlanganisayo ahlanganisayo, inqubo yokuxhumanisa kufanele futhi ilawulwe ngokucophelela ukuqinisekisa ukusebenza okuzinzile kukagesi kwesikhathi eside kanye nokumelana nokuguga kokushisa.
Isiphetho
Njengoba izintambo zikagesi ezisebenza ngamandla aphakathi naphezulu, izintambo zikagesi ezintsha, kanye nezintambo zesitimela ziqhubeka zifuna ukuthembeka okuphezulu, ukusebenza kwamakhemikhali okuvikela asebenza ngogesi kuye kwaba okubaluleke kakhulu. Ngokuhambisana kwawo okuhle kakhulu kokugcwalisa, ukumelana nokuguga kokushisa, ukuguquguquka kokushisa okuphansi, kanye nokuqina kokucubungula, i-EEA isibe enye yama-resin ayisisekelo athandwayo amakhemikhali okuvikela asebenza ngogesi asebenza ngogesi.
Kwabakhiqizi bezintambo, ukukhetha ibanga elifanele le-EEA nokwenza ngcono ukwakheka nge-conductive carbon black, izinhlelo zokuxhumanisa, kanye nezimo zokucubungula ezifanele kungathuthukisa ukuzinza kokucubungula, ukuhambisana komkhiqizo, kanye nokuthembeka kwesikhathi eside kwezinhlelo zokuvimbela izintambo.
Isixwayiso: Ulwazi olunikezwe kulesi sihloko lungolwesithenjwa sobuchwepheshe kuphela. Ukusebenza kwangempela kwe-EEA kungahluka kuye ngebanga, ukwakheka, kanye nezimo zokucubungula. Ukuhlolwa ngaphansi kwezimo ezithile zokusetshenziswa kuyanconywa ngaphambi kokusetshenziswa.
Isikhathi sokuthunyelwe: Juni-30-2026