Ngokuphathelene nezintambo nezintambo ezine-voltage ephansi, zihlukaniswe kakhulu ngezigaba ezimbili ngokwenhloso yazo: izintambo zokwakha nezintambo zemishini kagesi. Entanjeni yokwakha, kwakuyintambo yerabha yemvelo egqunywe nge-asphalt eboshwe nge-asphalt kusukela ngawo-1960. Kusukela ngawo-1970, ithathelwe indawo ngokuphelele yizintambo zepulasitiki ze-PVC. Isimo emigqeni yemishini kagesi sifana naleso esisemigqeni yokwakha, eyayibuswa irabha yemvelo ekuqaleni, kodwa yathathelwa indawo kakhulu yizintambo ze-PVC ngawo-1970. Lesi simo asilona isayensi futhi asinangqondo maqondana nemboni yezintambo kanye nokukhetha kwabasebenzisi. Namuhla, izintambo zemishini kagesi ezahlukahlukene, ikakhulukazi izintambo zokuxhuma ezidingekayo ezintweni zasekhaya ezikhulayo, kufanele zishintshe isimo samanje sokubuswa yipulasitiki ye-PVC futhi zithathelwe indawo ngezintambo zerabha. Ngenxa yokuthi izintambo zerabha zinezinzuzo ezihlukile njengokuthamba, ukuzizwa kahle kwesandla, ukwesaba ukushisa, kanye nokungancibiliki, azinakuqhathaniswa nezintambo zepulasitiki. Ngenxa yezinzuzo zazo eziningi irabha yokwenziwa engenazo, i-CPE ingasetshenziswa kabanzi ekukhiqizeni izintambo zikagesi zasekhaya nezinye izintambo eziguquguqukayo zemishini kagesi. I-CPE inezakhiwo zobuchwepheshe eziphelele, njengokumelana okuhle kakhulu komlilo kanye nokumelana okuphezulu kwamafutha, izakhiwo zomzimba nezemishini (okungukuthi izakhiwo zemishini), ukumelana okuhle nokuguga kokushisa, ukumelana ne-ozone, ukumelana nesimo sezulu, izakhiwo zikagesi ezinhle, kanye nokusebenza okuhle kokucubungula. Ingasetshenziswa emishinini yokucubungula irabha evamile, futhi izinto zerabha azishisi kakhulu. Izinto zokusetshenziswa ze-CPE ngeke ziwohloke ngemva kweminyaka eminingana yokugcina, Izinto zerabha ezine-vulcanizing agents zingagcinwa iminyaka eyi-1-2 ngaphandle kokonakala ngaphansi kwezimo zokugcina ezingcono.
Ngamafuphi, ukusetshenziswa kwe-CPE embonini yekhebula eku-inthanethi, okungukuthi, ukufaka esikhundleni se-CR nge-CPE, kuyindlela ethandwayo embonini yekhebula eku-inthanethi. Lokhu akugcini nje ngokunciphisa ukuphikisana kokuhlinzekwa kwe-CR nokufunwa kwayo, kunciphisa kakhulu izindleko zemikhiqizo yekhebula, kuthuthukisa izinzuzo zomnotho zemboni yekhebula, kodwa futhi kunokubaluleka okukhulu ekuthuthukiseni izinga lemikhiqizo yekhebula kanye nokufeza ukuhlukahluka kwezinhlobo zekhebula.
Isikhathi sokuthunyelwe: Novemba-06-2023
