HTPB le Tšusumetso ea Eona ho Likarolo tsa Lifofane tsa Moloko o Latelang
HTPB e o thusa ho ntshetsa pele saense ya thepa lefapheng la difofane. E fana ka botsitso le matla a mangata, e leng se ntlafatsang di-propellant tse tiileng tsa rokete.
| Thepa | Tlhaloso |
|---|---|
| Matlotlo a Mekaniki | Ho tenyetseha ho hoholo le ho hanyetsa mapetso. |
| Khanyetso ea Mocheso o Phahameng | E mamella mocheso oa khase o fetang 3000°C. |
| Meaho e Bobebe | E sebelisoa libakeng tsa rokete le likarolong tsa sathelaete. |
Lintlha tsa Bohlokoa
- HTPB e ntlafatsa likarolo tsa lifofane ka ho tenyetseha ho hoholo le ho hanyetsa tšusumetso, e leng se etsang hore li tšoarelle le ho tšepahala haholoanyane.
- Thepa ena e dumella ho kenya thepa e matla haholo ho di-propellant, e ntlafatsang tshebetso le bokgoni theknolojing ya rokete.
- Ho tenyetseha ha HTPB e le sesebelisoa sa ho kopanya, sealant, le resin ea matrix li nolofalletsa ho thehoa ha meaho e bobebe, e matla bakeng sa lits'ebetso tse tsoetseng pele tsa lifofane.
HTPB: Ho Ntlafatsa ho Tenyetseha ha Thepa le Khanyetso ea Tšusumetso
Binder ka Li-propellant tsa Rocket tse Tiileng
U itšetlehile ka HTPB: Ho Ntlafatsa ho Tenyetseha ha Thepa le Khanyetso ea Tšusumetso ha u hloka binder bakeng sa li-propellant tse tiileng tsa rokete. Thepa ena e u lumella ho kenya likaroloana tse ling tse tiileng, tse kang ammonium perchlorate le aluminium, ka har'a propellant - ho fihlela ho 90% ka boima. U fumana propellant e matla le e tenyetsehang. HTPB e u fa khomarelo e ntle haholo ho thepa e fapaneng, e thusang lirokete tsa hau ho sebetsa hantle le ho nka nako e telele. U boetse u rua molemo mochesong oa eona o phahameng oa ho tuka le ho hanyetsa botsofali, oxidation le hydrolysis.
- HTPB e dumella dikarolwana tse tiileng tse hodimo (kakaretso ya 88–90% ya AP le Al).
- E bonts'a thepa e ntle ea 'mele.
- HTPB e ratoa haholo ka lebaka la thepa ea eona ea mechine le ho khomarela hantle thepa e fapaneng.
- E hanela botsofali 'me e na le botsitso bo phahameng ba oxidative le hydrolytic.
- HTPB ke setlama se sebediswang haholo diforomong tsa di-propellant tse kopaneng.
- E lumella tekanyo e phahameng ea mojaro o tiileng (ho fihlela ho 90% ka boima).
- E na le mocheso o phahameng oa ho tuka.
O ka bona kamoo HTPB: Ho Ntlafatsa ho Tenyetseha ha Thepa le Khanyetso ea Tšusumetso li bapisoang le li-polymer tse ling tafoleng e ka tlase:
| Thepa | HTTPB | Li-polymer tse ling |
|---|---|---|
| Ho Tenyetseha ha Mocheso o Tlase | E babatsehang | E fapana, hangata ha e ratehe hakaalo |
| Khanyetso ea Tšusumetso | Holimo | Ka kakaretso e tlase |
| Ho iketsetsa lintho ka mokhoa o ikhethileng | E phahameng (ka liphetoho) | Maemong a mangata ho na le meedi e mengata. |
| Likopo ho tsa Lifofane | E kgethwa bakeng sa di-propellant | Ha e atile haholo |
HTPB: Ho Ntlafatsa ho Tenyetseha ha Thepa le Khanyetso ea Tšusumetso ho hlahella hobane ho u fa ho tenyetseha, matla le ho lumellana le likarolo tse ling tsa propellant.
Thepa ea ho kenya lintho tse sireletsang le ea ho kenya liner
U sebelisa HTPB: Ho Ntlafatsa ho Tenyetseha ha Thepa le Khanyetso ea Tšusumetso e le sesebelisoa sa ho thibela le ho thibela liner tsamaisong ea lifofane. Thepa ena e u thusa ho theha tlamo e matla pakeng tsa liner le propellant. U ka fetola karolelano ea isocyanate-to-hydroxyl ho ntlafatsa tlamo le ho thibela mathata a mongobo. Ha u sebelisa HTPB ka li-additives tse khethehileng, u fumana kamano e ntle ea limolek'hule pakeng tsa likaroloana tsa binder le filler. Ts'ebetso ena e u thusa ho qoba li-voids le libaka tse fokolang ho insulation ea hau.
Sebopeho sa liner se sebedisa karolelano ya isocyanate-to-hydroxyl (NCO/OH) e fetang 1 ka karolo ho lefella mongobo o ntseng o hlaha. Leha ho le jwalo, ha bohlokwa le ho feta, karolelano ena e dumella phihlello ya binder ya propellant ya R-45M ho dihlopha tsa isocyanate tse sa arajwang, ka hona e eketsa thepa ya bond ho interface ena. Ka hona, pheko ya liner ho dikarolwana tsena ha ea lokela ho dumellwa ho tswela pele ho fihlela moo ho hokahanya ka hara liner ho sitisang ho hasana ha dikarolo tsa binder ya propellant.
Ho bonahala HX-752 e sebelisana le ammonium perchlorate oxidizer, e lumellang kamano e betere ea limolek'hule pakeng tsa HTPB le likaroloana tsa filler, 'me e felisa ho thehoa ha lefela ho ka bang teng ha e le sieo.
U fumana insulation e thata, e tenyetsehang, le e tšepahalang bakeng sa libaka tse hlokang tlhokomelo ea lifofane.
Resin ea Matrix bakeng sa Lihlopha tse Tsoetseng Pele
U khetha HTPB: Ho Ntlafatsa ho Tenyetseha ha Thepa le Khanyetso ea Tšusumetso e le resin ea matrix ha u hloka metsoako e tsoetseng pele bakeng sa lifofane. Thepa ena e u lumella ho rala meaho e bobebe e ka sebetsanang le khatello e phahameng le tšusumetso. U ka fetola thepa ea HTPB hore e lumellane le litlhoko tsa hau, e leng se etsang hore ho be bonolo ho etsa likarolo tsa lirokete, li-satellite le lifofane. Sebopeho sa metsi sa HTPB se u thusa ho sebetsana le libopeho tse rarahaneng le ho fokotsa litšenyehelo tsa tlhahiso ha li bapisoa le thepa ea setso e tiileng.
- HTPB e fana ka thepa e phahameng joalo ka botsitso ba hydrolytic le ho tenyetseha ha mocheso o tlase, e leng se ka lebisang ho bolokeng litšenyehelo tlhokomelong le ts'ebetsong.
- Ts'ebetso ea eona e ikhethang e le mokelikeli e lumella lits'ebetso tse rarahaneng, tse ka fokotsang litšenyehelo tsa tlhahiso ha li bapisoa le thepa e tiileng ea setso.
- HTPB e sebelisoa haholo-holo lits'ebetsong tsa lifofane tsa boleng bo holimo, e leng se bontšang sebopeho se fapaneng sa litšenyehelo ha se bapisoa le thepa e tloaelehileng.
U fumana metsoako e matla, e tšoarellang, le e ka feto-fetohang bakeng sa likarolo tsa sefofane tsa moloko o latelang.
Li-sealant le Liaparo tse Sireletsang
U itšetlehile ka HTPB: Ho Ntlafatsa ho Tenyetseha ha Thepa le Khanyetso ea Tšusumetso bakeng sa li-sealant le li-coat tse sireletsang sebakeng sa lifofane. Thepa ena e u fa ts'ebetso e ntle ea mechini le mocheso, esita le libakeng tse feteletseng. U sebelisa li-sealant tse thehiloeng ho HTPB ho boloka likarolo tsa hau li tenyetseha ebile li hanela lik'hemik'hale, mongobo le boemo ba leholimo. Li-sealant tsena li boloka ho tenyetseha ho feta 80% kamora ho pepesehela khatello ea maikutlo nako e telele 'me li bontša sekhahla sa ho fokotseha se ka tlase ho 3%. Li boetse li hanela lik'hemik'hale maemong a kaholimo ho 90%.
- HTPB e tsebahala ka ts'ebetso ea eona e ntle ea mechini le mocheso, e leng se etsang hore e lokele lits'ebetso tsa lifofane.
- E sebetsa e le karolo ea bohlokoa ho li-binder tse tiileng tsa rokete tse etsang li-rocket propellant, e leng se fanang ka matla a maholo a ho kopanya le ho tenyetseha libakeng tse feteletseng.
- Tlhoko ea HTPB lefapheng la lifofane le tšireletso e susumetsoa ke tlhokahalo ea eona limisaeleng, li-satellite le likoloi tsa ho qala sepakapaka.
- Li-sealant tse thehiloeng ho HTPB li boloka maemo a ho tenyetseha a fetang 80% kamora ho pepesehela khatello ea tikoloho nako e telele.
- Li bontša sekhahla sa ho fokotseha ha tsona ka tlase ho 3%.
- Li-sealant tsa HTPB li bontša maemo a khanyetso ea lik'hemik'hale a fetang 90%.
HTPB e etsa mealo e thata e sireletsang meaho ea hau ea lifofane ho mafome le tšenyo. U ka tšepa hore masela ana a tla boloka lisebelisoa tsa hau li sireletsehile ebile li tšepahala nako e telele.
Melemo ea Bohlokoa ea HTPB ho Theknoloji ea Lifofane
Matlotlo a Ntlafalitsoeng a Mekaniki le a Thermal
U rua molemo ho tsoa litšobotsing tse ikhethang tsa HTPB tsa mechine le mocheso. Thepa ena e lula e tenyetseha esita le maemong a batang hobane e na le mocheso o tlase oa phetoho ea khalase oa hoo e ka bang -75°C. U e bona e otloloha ka ho feta 50% ho -54°C, e leng se thusang ho thibela mapetso libakeng tse batang. HTPB e hanela metsi, oli, 'me e boloka sebopeho sa eona ha e pepesehetse mocheso. U fumana ts'ebetso e betere ho feta li-binder tsa khale joalo ka PBAN.
- HTPB e lula e tenyetseha maemong a leholimo a batang.
- E hanela tshenyo e bakwang ke mafura, oli le mongobo.
- Thepa e bonts'a botsitso ba hydrolytic le ho feto-fetoha ho tlase.
Ho Tsitsisa le ho Tsamaellana ha Lik'hemik'hale
U itšetleha ka HTPB bakeng sa botsitso ba eona ba lik'hemik'hale le ho lumellana ha eona le thepa e 'ngoe. Tafole e ka tlase e bontša kamoo HTPB e bapisoang le li-polymer tse ling tse tloaelehileng tsa lifofane:
| Thepa | Ho tenyetseha | Khanyetso ea Mocheso | Litšenyehelo | Ho tšoarella |
|---|---|---|---|---|
| HTTPB | Holimo | E itekanetseng | E itekanetseng | Ho lokile |
| Silicone | E itekanetseng | Holimo | Holimo | E babatsehang |
| Li-resin tsa Epoxy | Tlase | E itekanetseng | Tlase | Mafutsana |
HTPB: Ho Ntlafatsa ho Tenyetseha ha Thepa le Khanyetso ea Tšusumetso ho u fa kamano e matla le li-oxidizer le li-filler, e leng se etsang hore e be khetho e ntle bakeng sa li-propellant le li-liner.
Ho Tenyetseha ha Moralo le ho Ts'ebetsoa ha Ts'ebetso
O ka bopa HTPB ka mefuta e mengata bakeng sa litlhoko tsa sefofane. Thepa e sebetsa hantle e le binder, elastomer, sekhomaretsi le sealant. O fumana ho le bonolo ho e sebetsana le ho e etsa ka tsela e fapaneng bakeng sa lits'ebetso tse fapaneng. Ha e bapisoa le silicone, HTPB e fana ka thepa e betere ea mechini 'me e theko e tlase. Li-resin tsa epoxy li theko e tlase empa ha li tšoarelle nako e telele kapa ha li otlolohe haholo.
| Mofuta oa Kopo | Tlhaloso |
|---|---|
| Lirokete tse Tsamaisang | E sebelisoa e le sehokelo ka lebaka la thepa ea eona ea mechini le ho lumellana ha eona le li-oxidizer. |
| Li-elastomer | E fana ka matla le ho tenyetseha lits'ebetsong tse fapaneng. |
| Likhomaretsi | E fana ka bokgoni bo matla ba ho kopanya tlhahisong ya difofane. |
| Litiiso | E netefatsa ho hanyetsa lik'hemik'hale le ho tšoarella ha tsona libakeng tsa lifofane. |
- HTPB e leka-lekanya ho tenyetseha, litšenyehelo le ts'ebetso e bonolo.
Ho Tšoarella ho Ntlafetseng le ho Phela Nako e Telele
U tšepa HTPB ho etsa hore likarolo tsa sefofane li tšoarelle nako e telele. Thepa e bontša matla a ho tsitlella a phahameng 'me e otlolla ho fihlela ho 500% pele e robeha, e leng se betere ho feta karolelano ea indasteri. Ho kenya mocheso ho thehiloeng ho HTPB ho mamella mocheso oa khase ho feta 3000°C ha u eketsa li-filler tse hanelang mocheso. Liteko tsa nako e telele li bontša hore li-propellant tsa HTPB li sebetsana hantle le khatello ea maikutlo, empa u tlameha ho utloisisa hore na khatello ea maikutlo e ama mapetso a manyane le li-voids joang ho bolela esale pele hore na thepa e tla nka nako e kae.
- Ho kenya mocheso ho thehiloeng ho HTPB e hanela mocheso o feteletseng.
- Thepa e lula e tenyetseha ebile e le matla ha nako e ntse e ea.
U bona HTPB e bopa bokamoso ba lifofane.
- Tlhaho ea HTPB ea ho se tšabe metsi le botsitso li thusa ho fokotsa tšusumetso tikolohong.
- U rua molemo ka ho tenyetseha ha eona le ho ntlafatsa ts'ebeliso ea mafura.
- Mahlale a Indasteri ea 4.0 a ntlafatsa tlhahiso ea HTPB.
| Likhakanyo tsa Nakong e Tlang bakeng sa HTPB | Tlhaloso |
|---|---|
| Mekhoa e Tsitsitseng | Finyella maemo a tikoloho. |
| Lihlopha tse Ntlafalitsoeng | Matlo a matle bakeng sa lifofane. |
| Likoloi tsa ho Qala Sepakapakeng | Keketseho ea lipatlisiso tsa khoebo. |
LBH
Ke eng e etsang hore HTPB e be khetho e ntle bakeng sa likarolo tsa lifofane?
U khetha HTPB hobane e u fa ho tenyetseha, ho khomarela ho matla, le ho hanyetsa tikoloho e thata. Likarolo tsena li thusa likarolo tsa hau tsa sefofane ho nka nako e telele le ho sebetsa hantle.
Na o ka etsa HTPB hore e lumellane le litlhoko tse itseng tsa sefofane?
E, o ka fetola thepa ea HTPB. O fetola sebopeho sa polymer kapa o eketsa liemeli tse khethehileng. Sena se u lumella ho fihlela litlhoko tse ikhethang bakeng sa projeke e 'ngoe le e 'ngoe ea lifofane.
HTPB e ntlafatsa polokeho joang lits'ebetsong tsa lifofane?
HTPB e hanela mocheso, lik'hemik'hale le mongobo. U fokotsa kotsi ea ho hloleha maemong a feteletseng. Sena se u thusa ho boloka litsamaiso tsa hau tsa lifofane li sireletsehile ebile li tšepahala.