Njengoko iintambo zombane eziphakathi neziphezulu, iintambo zamandla ezintsha, iintambo zikaloliwe, kunye neziseko zonxibelelwano ziqhubeka nokukhula, abavelisi beentambo bagxininisa ngakumbi ekuthembekeni kwexesha elide kwezinto zentambo. Ukongeza kwiIikhompawundi zokugquma ze-XLPE, iikhompawundi zokukhusela ezisebenza ngombane zidlala indima ebalulekileyo ekumiseleni ukusasazwa kwentsimi yombane, ukusebenza kobushushu, kunye nobomi benkonzo yexesha elide yeentambo zombane.
I-Ethyl Acrylate (EEA) isetyenziswa kakhulu njenge-resin esisiseko yeekhompawundi zokukhusela ezisebenza ngokwe-semiconductive kwiintambo zamandla ze-XLPE eziphakathi neziphezulu. Ngenxa yokuhambelana kwayo okuhle kakhulu nokuzalisa, ukumelana nokuguga kobushushu, ukuguquguquka kobushushu obuphantsi, kunye nokusebenza okuzinzileyo kokucubungula, i-EEA ibe yenye yezinto eziphambili ze-polymer ezisetyenziswa kwiikhompawundi zekhebula ezisebenzayo.
Kutheni i-EEA isetyenziswa kwiikhompawundi zokukhusela ezisebenza ngokuxuba izinto ezincinci?
I-EEA yi-polar ethylene copolymer eveliswa yi-free-radical copolymerization ye-ethylene kunye ne-ethyl acrylate phantsi kweemeko zoxinzelelo oluphezulu. Ukungeniswa kwamaqela e-polar ester kwi-polymer chain kunika i-EEA iingenelo ezininzi kune-LDPE eqhelekileyo kunye ne-EVA, okwenza ukuba ifaneleke ngakumbi kwiikhompawundi zokukhusela ezisebenza ngokwe-semiconductive.
Ulwakhiwo lwayo lwe-polar luphucula ukuhambelana nomnyama wekhabhoni oqhubayo, okuvumela ukuba isizali sisasazeke ngokulinganayo kwaye senze inethiwekhi yokuqhuba ezinzileyo. Oku kunceda ukugcina umbane oqhubayo rhoqo kulo lonke umaleko wokukhusela we-semiconductive.
I-EEA ikwabonelela ngokuguquguquka okugqwesileyo kobushushu obuphantsi, ukumelana noxinzelelo lokusingqongileyo (ESCR), kunye nokumelana nokuguga kobushushu, okuvumela umaleko wokukhusela ukuba ugcine iipropati zawo zoomatshini nezombane ngexesha lenkonzo yexesha elide. Xa kuthelekiswa ne-EVA, i-EEA ibonelela ngozinzo olungcono lobushushu ngaphakathi kobushushu obuqhelekileyo bokuphuma kwentambo kwaye ayikhuphi iimveliso ezibolayo ezifana ne-acetic acid ngexesha lokucubungula, okwenza kube lula ngakumbi kwizixhobo.
Izicelo eziphambili ze-EEA kwizixhobo zekhebula
Ukusetyenziswa okuphambili kwe-EEA kwishishini leentambo kukusetyenziswa njenge-resin esisiseko yeekhompawundi zokukhusela ezisebenzisa i-semiconductive ezisetyenziswa kwiintambo zombane ze-XLPE eziphakathi neziphezulu.
Intambo yamandla eqhelekileyo ephakathi okanye ephezulu iqulathe isikhuselo somqhubi, i-XLPE insulation, isikhuselo sokukhusela, kunye nesikrini sesinyithi. Njenge-polymer esisiseko kwiikhompawundi zokukhusela ze-semiconductive, i-EEA iphucula ukusasazeka kwe-conductive carbon black, iphucula uzinzo lombane lomaleko wokukhusela, kwaye ikhuthaza ukunamathela okuqinileyo kwi-XLPE insulation. Ezi mpawu zinceda ukunciphisa umngcipheko wokukhupha inxalenye kwaye ziphucule ukuthembeka kwexesha elide kwenkqubo yokukhusela ikhebula.
Ukongeza kwiintambo zombane, i-EEA ikwasetyenziswa kwiintambo ezintsha zamandla, iintambo zikaloliwe, kunye nezinye izixhobo zentambo ezisebenza kakuhle.
Kutheni le nto kukho ii-EEA ezininzi ezisebenzisa ii-semiconductive shielding compounds?
Njengoko abavelisi beentambo beqhubeka nokulandela ukuthembeka okuphezulu, i-EEA iye yaba lukhetho oluthandwa kakhulu kwiikhompawundi zokukhusela ezisebenzisa i-semiconductor. Ukuhambelana kwayo okuhle kakhulu nomnyama wekhabhoni, ukumelana nokuguga kobushushu, ukuguquguquka kobushushu obuphantsi, kunye nokuzinza kokucubungula kuvumela iikhompawundi zokukhusela ukuba zigcine ukusebenza okufanayo phantsi kweemeko zokusebenza ezinzima.
Enye inzuzo ephambili kukunamathela kwayo okuqinileyo kwi-insulation ye-XLPE, okunceda ukunciphisa iziphene ze-interface kunye nokunciphisa umngcipheko wokukhutshwa kwenxalenye ye-interface. Idibene nefestile yayo ebanzi yokucubungula, i-EEA ikwanegalelo ekuphuculeni uzinzo lwe-extrusion kunye nokuhambelana okukhulu kwemveliso, okwenza ukuba ibe yi-resin esisiseko ekhethwayo yeekhompawundi zokukhusela ezisebenza nge-semiconductive kwiintambo zamandla eziphakathi neziphezulu.
Izinto eziqwalaselwayo malunga nokucubungula i-EEA
Ukuze kusebenze kakuhle i-EEA kwiikhompawundi zekhebula, abavelisi kufuneka bakhethe umgangatho ofanelekileyo ngokusekelwe kumxholo we-ethyl acrylate (EA), izinga lokuhamba kwe-melt (MFR), uyilo lwekhebula, kunye neemfuno zokucubungula. Amaqondo obushushu okukhupha i-extrusion nawo kufuneka alawulwe ngaphakathi koluhlu olucetyiswayo ukuthintela ukuwohloka kobushushu.
Kwiikhompawundi zokukhusela ezigcwele kakhulu, kuyacetyiswa ukomisa ngokufanelekileyo ngaphambi kokuba kukhutshwe ukuze kuncitshiswe amaqamza kunye neziphene zomphezulu. Kwiikhompawundi zokukhusela ezisebenzisa i-semiconductor, inkqubo yokuxhumanisa kufuneka ilawulwe ngononophelo ukuqinisekisa ukusebenza kombane okuzinzileyo ixesha elide kunye nokumelana nokuguga kobushushu.
Isiphelo
Njengoko iintambo zamandla eziphakathi neziphezulu, iintambo zamandla amatsha, kunye neentambo zikaloliwe ziqhubeka zifuna ukuthembeka okuphezulu, ukusebenza kweekhompawundi zokukhusela ezisebenza ngokwe-semiconductor kuye kwabaluleka ngakumbi. Ngenxa yokuhambelana kwayo okuhle kakhulu nokuzalisa, ukumelana nokuguga kobushushu, ukuguquguquka kobushushu obuphantsi, kunye nokuzinza kokucubungula, i-EEA ibe yenye yeeresini ezisisiseko ezikhethwayo zeekhompawundi zokukhusela ezisebenza ngokwe-semiconductor.
Kwabenzi beentambo, ukukhetha inqanaba elifanelekileyo le-EEA kunye nokwenza ngcono indlela yokwenza izinto nge-conductive carbon black, iinkqubo zokudibanisa, kunye neemeko ezifanelekileyo zokucubungula kunokuphucula uzinzo lokucubungula, ukuhambelana kwemveliso, kunye nokuthembeka kwexesha elide kweenkqubo zokukhusela iintambo.
Isikhanyeli: Ulwazi olunikiweyo kweli nqaku lolwereferensi yobuchwephesha kuphela. Ukusebenza kwangempela kwe-EEA kunokwahluka ngokuxhomekeke kudidi, ukwakheka, kunye neemeko zokucubungula. Uvavanyo phantsi kweemeko ezithile zokusetyenziswa luyacetyiswa ngaphambi kokusetyenziswa.
Ixesha lokuthumela: Juni-30-2026