Mashandisirwo eHTPB muAerospace

HTPB (Hydroxyl-Terminated Polybutadiene) irabha uye binder yakagadzirwa zvakanaka inoshandiswa zvakanyanya mundege nekuda kwehunhu hwayo hwakanaka hwemakanika, kuramba kupisa kwakaderera, kugadzikana kwemakemikari, uye kugona kunamira. Pazasi pane mashandisirwo akakosha uye hunhu hwe HTTPB mundege.

**1. Binder yeSolid Rocket Propellants**

HTTPB ndiyo matrix inowanzoshandiswa muzvishandiso zvemaroketi zvine simba, zvichiita mabasa anotevera:

- Kusunga zvikamu zvakasimba: Inobatanidza zvakafanana maoxidizer (semuenzaniso, Ammonium perchlorate, AP), mafuta esimbi (semuenzaniso, Upfu hweAruminiyamu),HTTPB/AP/Al chimiro, nezvimwe zvinowedzera kugadzira chinhu chinopa simba chakasimba.

- Kupa hunhu hwemakanika: HTTPBZvishandiso zvinoshandisa mapuropa zvine hunyoro hwakanyanya, zvinoramba kutsemuka, uye zvinoshanda zvakanaka pakupisa kwakaderera (zvakakodzera mamiriro ekunze akaipisisa).

- Kugadzirisa mashandiro ekupisa: Mwero wekutsva uye simba rinobuda zvinogona kudzorwa kuburikidza nekugadzira dhizaini (semuenzaniso, kuwedzera mapurasitiki kana zvinhu zvinobatanidza).

- Zvikumbiro zvevamiririri: Zvishandiso zveSpace Shuttle (SRB), Maroketi, Chinofambisa mafuta chemotokari inoburitsa satellite

**2. Zvinhu zvekudzivirira kupisa uye zveLiner**

HTTPB inoshandiswa mumainjini eroketi sezvikamu zvekudzivirira kupisa kana kuti ma liner ekudzivirira macasing esimbi/composite kubva mukukurwa kwemhepo inopisa zvikuru:

- Kudzivirira kupisa kwakanyanya:Nezvinowedzera zvinodzivirira kupisa (semuenzaniso, silica, carbon fibers), HTTPBKudzivirira kwakavakirwa pachinhu ichi kunogona kutsungirira tembiricha yegesi inodarika 3000°C.

- Kunamatira: Inoita zvisungo zvakasimba nezvinhu zve casing (semuenzaniso, simbi, composites), zvichidzivirira kucheka.

**3. Matrix Resin yeComposites**

HTTPB inoshanda sepolymer matrix muzvinhu zvinosanganisa mhepo:

- Zvivakwa zvireru: Kana yabatanidzwa nekabhoni kana girazi, inoshandiswa mu rocket fairings, satellite components, nezvimwewo.

- Kuramba kukanganiswa: Yakakodzera kutsungirira kudedera kwekuburitswa uye mutoro wemakanika.

**4. Zvinovhara uye Zvinoputira**

- Kuisa chisimbiso: HTTPBZvinovharira zvine ma "sealant" zvinoshandiswa mumatangi emafuta eroketi uye majoini kudzivirira kudonha kwemvura.

- Kupfeka kwekudzivirira: Kusakwanisa kwayo makemikari nemwaranzi kunoita kuti ikodzere kudzivirirwa kunze kwesatellite.

**5. Mabhenefiti e HTTPB**

- Simba guru rinobuda: Huremu hwakawanda hwe CH hunopa kupisa kwakawanda kwekupisa.

- Kuchinjika kwekushisa kwakakura: Inochengetedza kushanda kwakasimba kubva -40°C kusvika 60°C.

- Kugadziriswa kwevanhu vakuru: Zviri nyore kugadzira uye kugadzira, zvakakodzera kugadzirwa kukuru.

**6. Mhedziso**

Nekuda kwehunhu hwayo hwakaenzana, HTTPB chinhu chakakosha pakushandisa maroketi akasimba uye mashandisirwo emuchadenga, zvichitsigira mota dzemazuva ano dzekuburitsa zvombo, mabhomba, uye matekinoroji esathelaiti. Kufambira mberi mune ramangwana mumaroketi anogona kushandiswazve uye kutsvaga nzvimbo dzakadzika kuchaita kuti pave nekugadziriswa kwakawanda kwe HTTPB mafomura (semuenzaniso, kuwanda kwesimba kana hushamwari kune nharaunda).

Kambani yedu inopa HTTPB mumhando dzakasiyana-siyana uye inopa kugadzirwa kwakagadzirirwa vatengi zvichienderana nezvinodiwa nevatengi. Panguva iyi tine mvumo yekupa marezenisi ekutumira kunze kwenyika HTTPB.