Amafutha e-rocket adlala indima ebalulekileyo kwimisebenzi yokuhlola indawo. Ukutyhubela iminyaka, kuye kwaphuhliswa iintlobo ezahlukeneyo zerocket propellants kwaye zavavanywa ukuze kufezekiswe ukusebenza kakuhle kunye nokusebenza kakuhle. Enye ipropellant enjalo yi-HTPB, emele i-hydroxyl-terinated polybutadiene. Ngenxa yeepropathi zayo ezigqwesileyo, sisibaso esisetyenziswa ngokuqhelekileyo kwiimotor zerokhethi eziqinileyo.
I-HTPB ye-rocket fuel yi-propellant edibeneyo eyenziwe yi-binder, i-oxidizer kunye ne-fuel metal fuel. Isibophelelo (okt HTPB) sisebenza njengomthombo wamafutha kwaye sibonelela ngobulungisa bolwakhiwo kwipropellant. Iqukethe i-polymer ye-long-chain eyenziwe ngokuphendula i-butadiene kunye ne-alcohol, inika iipropati ezifunwayo ze-hydroxyl-terinated.
Enye yeempawu ezizodwa zeHTPB sisiqulatho samandla aphezulu. Inobushushu obuphezulu bokutsha, oku kuthetha ukuba inokukhulula umthamo omkhulu wamandla xa itshisiwe. Oku kuyenza ilungele i-rocket propulsion, njengoko okukhona i-propellant ivelisa amandla amaninzi, kokukhona iphezulu ithreshi enokufezekiswa.
Ukongeza, i-HTPB ayichukumiseki kangako kumothuko kunye nokukhuhlana, iyenza i-propellant ezinzile kwaye ekhuselekileyo. Ukuzinza kwayo kubalulekile ngexesha lokugcinwa kunye nokuthutha, kwaye nawuphi na umlilo wengozi unokuba nemiphumo eyintlekele. Uvakalelo oluphantsi lweHTPBivumela iqondo eliphezulu lokhuseleko lokusebenza xa kuthelekiswa nezinye iintlobo zepropellant.
Enye inzuzo yeHTPB kwi-rocket fuel kukukwazi ukuphoswa kwiimilo ezahlukeneyo kunye nobukhulu. Inokubunjwa ngokulula kwiijometri zamasuntswana ezifanelekileyo kuyilo lwerokethi kunye neemfuno. Oku kubhetyebhetye kwemveliso kuvumela iinjineli ukuba zilungelelanise iipropellants zokwandisa amazinga okutsha kunye nokuphumeza iimpawu zokusebenza ezinqwenelekayo.
Ukutshisa i-HTPB kwi-injini ye-rocket kuvelisa igesi eninzi kunye nomsi omkhulu womsi. Umsi oveliswe yi-HTPB-based propellants sisiphumo sokutsha okungaphelelanga kunye nobukho bezinye izinto eziqinileyo ezishiyekileyo. Ngelixa umsi usenokungalungelanga usetyenziso oluthile, kunokuba luncedo ekuboneleleni ngomkhondo wendlela yerokhethi ngexesha lokuqaliswa.
Ukongeza,HTPB I-rocket fuel ibonisa izinga lokutsha elisezantsi. Eli nqanaba lokutsha elilawulwayo livumela ukuhanjiswa kwe-thrust elawulwayo kunye nokuqikelelwa, okubaluleke kakhulu kwizicelo ezifuna ulawulo oluchanekileyo kunye nokuhamba. Iinjineli zinokuyila ngokuchanekileyo umkhondo werokethi kunye nendlela yokubhabha, iphucula impumelelo yobuthunywa.
Nangona amafutha e-rocket ye-HTPB ineenzuzo ezininzi, nayo inemida ethile. Omnye umda yimpembelelo yayo ethile esezantsi xa kuthelekiswa nezinye iintlobo zepropellant. Impembelelo ethile ngumlinganiselo wendlela ipropellant ebuguqula ngayo ubunzima bamafutha ukuba bube yithrashi. Nangona i-HTPB ibonelela ngempembelelo ethile elungileyo, kukho ezinye iipropellants ezinokubonelela ngexabiso eliphezulu lempembelelo ethile.
Ixesha lokuposa: Nov-05-2023