HTPB, inozivikanwawo se hydroxyl-terminated polybutadiene, ipolymer inozivikanwa mumaindasitiri akasiyana-siyana nekuda kwehunhu hwayo hwakasiyana uye kushanduka-shanduka. Muchinyorwa chino, tichaongorora mashandisirwo akasiyana-siyana uye mashandisirwo eHTPB.
HTTPBirabha yakagadzirwa yakagadzirwa nebutadiene uye huwandu hushoma hwe divinylbenzene. Chinhu chinobuda chinoratidzwa ne hydroxyl (-OH) termini yayo, iyo inopa hunhu hwakawanda hunodiwa kune polymer.
Imwe yenzira dzakakosha dzekushandisa HTPB ndeyekushandisa rocket propellants. Iyi polymer inoshandiswa zvakanyanya sechinhu chakakosha mukugadzira mafuta emota yerocket solid. Ma propellants anobva kuHTPB ane mabhenefiti akati wandei pane mamwe maitiro. Ma propellants aya haanyanyi kubatwa neshock neshock, zvichiita kuti pave nekuchengetedzeka kwakanyanya panguva yekubata nekutakura. Pamusoro pezvo, anoratidza hunhu hwakanaka hwemakanika, hwakadai sekupfava kwakanaka uye kuchinjika, zvichibvumira propellant kutsungirira kumanikidzwa kwakanyanya uye kukurumidza panguva yekupisa. Pamusoro pezvo, ma propellants anobva kuHTPB ane specific impulse yakakwira, iyo inobatsira kuwana simba guru uye kushanda zvakanaka murocket propulsion.
Pamusoro pekushandiswa kwemuchadenga, HTPB inoshandiswa kugadzira ma elastomers nema sealant akasiyana-siyana. Nekuda kwekusagona kwayo makemikari, HTPB inowanzo shandiswa se binder mukugadzira manamati ne coatings. Kukwanisa kwayo kunamira kune akasiyana-siyana substrates kunoita kuti ive sarudzo yekutanga yekushandiswa kunoda kubatana kwakasimba. Pamusoro pezvo, ma sealant akavakirwa paHTPB anogona kushandiswa mukuvhara mhepo nekudzivirira mvura mumaindasitiri akadai sekuvaka nemotokari. Ma sealant aya anozivikanwa nekugara kwenguva refu uye kuramba kupisa kwakanyanya uye mamiriro ekunze akaoma.
Imwe nzvimbo uko HTTPBChinonyanya kukosha ndechekugadzira zvigadzirwa zvefuro rinochinjika. Iyi polymer inoshandiswa kugadzira furo rinoshandiswa mumaindasitiri akasiyana-siyana, kusanganisira mota, ndege uye insulation. Furo rakavakirwa paHTPB rine hunhu hwakanaka hwekutsvinda uye rakanakira kushandiswa mumatiresi, macushion ezvigaro uye zvinhu zvinobata kuvhunduka. Kugona kushandiswa kweHTPB kunobvumira kugadzirwa kwefuro rine huremu hwakasiyana uye kuomarara kuti risangane nezvinodiwa zvakasiyana zvekushandisa.
Indasitiri yekudzivirira inobatsirwawo nekushandiswa kweHTPB pakugadzira zvinhu zvinoputika.HTTPBZvinoputika zvinoshandiswa muzvombo zvinopfura zvombo, mabara ezvombo nezvimwe zvakasiyana-siyana. Izvi zvine hunhu hwakanaka hwakadai sesimba guru, kugadzikana uye kusanzwa kurira, zvichiita kuti zvikwanise kushandiswa muhondo.
Pamusoro pezvo, HTPB inoshandiswa mukugadzira machira ekupenda nependi. Machira aya anoshandiswa zvakanyanya mumaindasitiri umo dziviriro kubva mukuora uye kusvibiswa kwezvakatipoteredza kwakakosha, senge maindasitiri emafuta negesi, egungwa nemotokari. Kusagona kweHTPB kurwisa makemikari nemamiriro ekunze akaoma kunoita kuti chifukidzo ichi chive nedziviriro inogara kwenguva refu uye yakavimbika.
Muchidimbu, HTPB ipolymer inoshandiswa zvakasiyana-siyana inogona kushandiswa mumaindasitiri akasiyana-siyana. Kubva kumaroketi anofambisa kusvika kumasealant, mafoam, mabhomba uye macoatings, hunhu hweHTPB hwakasiyana hunoita kuti ive sarudzo yakanaka kune akasiyana mashandisirwo. Sezvo tekinoroji ichiramba ichifambira mberi, kudiwa kweHTPB kunotarisirwa kuramba kuchikura uye mashandisirwo matsva epolymer iyi inoshamisa achabuda.
Nguva yekutumira: Mbudzi-01-2023