HTPB, e tsejoang hape e le hydroxyl-terminated polybutadiene, ke polymer e tsebahalang liindastering tse fapaneng ka lebaka la thepa ea eona e ikhethang le ho tenyetseha ha eona. Sehloohong sena, re tla hlahloba lits'ebetso le ts'ebeliso e fapaneng ea HTPB.
HTTPBke rabara ea maiketsetso e entsoeng ka polymer ho tsoa ho butadiene le karolo e nyane ea divinylbenzene. Thepa e hlahisoang e khetholloa ka termini ea eona ea hydroxyl (-OH), e fanang ka thepa e ngata e lakatsehang ho polymer.
E 'ngoe ea tšebeliso ea bohlokoa ka ho fetisisa ea HTPB ke lefapheng la li-propellant tsa rokete. Polymer ena e sebelisoa haholo e le motsoako oa bohlokoa tlhahisong ea mafura a rokete e tiileng. Li-propellant tse thehiloeng ho HTPB li fana ka melemo e 'maloa ho feta mekhoa e meng. Li-propellant tsena ha li na kutloelo-bohloko haholo ho tšokelo le ho tšoha, li netefatsa polokeho e eketsehileng nakong ea ho sebetsana le ho tsamaisoa. Ho phaella moo, li bontša litšobotsi tse ntle tsa mechini, tse kang ho tenyetseha hantle le ho tenyetseha, tse lumellang propellant ho mamella khatello e phahameng le ho potlaka nakong ea ho cha. Ho phaella moo, li-propellant tse thehiloeng ho HTPB li na le tšusumetso e khethehileng e phahameng, e thusang ho fihlela ho sutumelletsa le ho sebetsa hantle haholoanyane ho ntšetseng pele ha rokete.
Ntle le lits'ebetso tsa lifofane, HTPB e sebelisetsoa ho etsa mefuta e fapaneng ea li-elastomer le li-sealant. Ka lebaka la ho hanyetsa lik'hemik'hale hantle, HTPB hangata e sebelisoa e le sehokelo tlhahisong ea likhomaretsi le lipente. Bokhoni ba eona ba ho khomarela mefuta e fapaneng ea li-substrate bo etsa hore e be khetho ea pele bakeng sa lits'ebetso tse hlokang ho hokahana ho matla. Ho phaella moo, li-sealant tse thehiloeng ho HTPB li ka sebelisoa bakeng sa ho tiisa moea le metsi liindastering tse kang tsa kaho le tsa likoloi. Li-sealant tsena li tsebahala ka ho tšoarella ha tsona le ho hanyetsa mocheso o feteletseng le maemo a thata a tikoloho.
Sebaka se seng moo HTTPBKarolo ea bohlokoa ke tlhahisong ea lihlahisoa tsa foam tse tenyetsehang. Polymer ena e sebelisetsoa ho etsa foam e sebelisoang liindastering tse fapaneng, ho kenyeletsoa likoloi, lifofane le ho kenya mocheso. Foam e thehiloeng ho HTPB e na le thepa e ntle ea ho boloka mongobo 'me e loketse ho sebelisoa materaseng, mesamo ea litulo le thepa e monyang ho thothomela. Ho tenyetseha ha HTPB ho lumella tlhahiso ea foam ea boholo bo fapaneng le ho thatafala ho fihlela litlhoko tse fapaneng tsa ts'ebeliso.
Indasteri ea tšireletso e boetse e rua molemo tšebelisong ea HTPB bakeng sa tlhahiso ea lintho tse phatlohang.HTTPBLiqhomane li sebelisoa liqhomaneng tsa ntoa tsa limisaele, liqhomaneng tsa libetsa tsa ntoa le mefuta e meng ea libetsa. Liqhomane tsena li na le litšobotsi tse lakatsehang tse kang tlhahiso e phahameng ea matla, botsitso le ho se utloe bohloko ha li hlaseloa, e leng se etsang hore li lokele lits'ebetso tsa sesole.
Ho phaella moo, HTPB e sebediswa ho etseng dikobo le dipente tse ikgethang. Dikobo tsena di sebediswa haholo diindastering moo tshireletso kgahlanong le mafome le ho pepesehela tikoloho e leng bohlokwa, jwalo ka diindasteri tsa oli le kgase, tsa lewatle le tsa dikoloi. Khanyetso ya tlhaho ya HTPB dikhemikhaleng le maemong a thata e netefatsa hore kobo e fana ka tshireletso e tshwarellang nako e telele le e tshepahalang.
Ka bokhutšoanyane, HTPB ke polymer e feto-fetohang e ka sebelisoang liindastering tse fapaneng. Ho tloha ho li-propellant tsa rokete ho ea ho li-sealant, li-foam, liqhomane le li-coat, thepa e ikhethang ea HTPB e etsa hore e be khetho e ntle bakeng sa lits'ebetso tse fapaneng. Ha theknoloji e ntse e tsoela pele ho hatela pele, tlhoko ea HTPB e lebelletsoe ho tsoela pele ho hola 'me lits'ebetso tse ncha tsa polymer ena e ikhethang li tla hlaha.
Nako ea poso: Pulungoana-01-2023