CAS 69102-90-5 HTPB Hydroxyl-terminated polybutadiene HTPB mo mea faʻamalosi, faʻapipiʻi, faʻamaufaʻailoga, ufiufi

O le HTPB o se polymer pipii mamao, o le pa'u vai fou. O meatotino e eseese ona o le HTPB o se paluga nai lo le mama mama, ma e gaosia e faʻafetaui manaoga faʻapitoa a tagata faʻatau. Ole HTPB masani ole R-45M fa'atasi ai ma pito ta'itasi ole filifili fa'amuta ile vaega ole hydroxyl [OH]. (PS: e mafai ona tatou faia so o se lomiga o le HTPB e pei ona talosaga tagata faatau, ma le mamanu fou le HTPB ma se filifili se tasi o hydroxyl -OH, I le taimi nei, e mafai ona tatou faia hydrogenation o le HTPB)

E ma filifili faʻaopoopoga sui, sui crosslinking i le vevela potu poʻo le vevela maualuga tali e mafai ona faʻatupuina le fausaga fesoʻotaʻiga 3D o le faʻamaloloina o content.The faʻamalologa o loʻo i ai mea faʻainisinia sili ona lelei, aemaise lava le tetee lelei i le hydrolysis, acid and alkali resistant, of wear resistance, low temperature resistance ma fa'amama eletise lelei.

Polyurethanes saunia mai le HTPB e mafai ona faʻainisinia mo mea faʻapitoa faʻapitoa; polyurethanes atonu e maualuga tele pe maaa ma malo. O nisi o oloa e aofia ai: fa'amama fa'amama fa'alava; uili ma pa'u elastomeric umi (fa'aoga mo ta'avale, escalators, skateboards, etc.); ta'avale ta'avale taofi; fa'apipi'i ipu eletise; fa'apipi'i maualuga; fa'apipi'i i luga ma fa'amaufa'ailoga; alava gaosia (faataitaiga, Spandex); kapeta lalo; vaega palasitika malo (fa'ata'ita'iga, mo mea faifa'aeletonika).

O se fa'aoga taua o le HTPB o lo'o i totonu o le roketi malosi. O lo'o fusifusia ai le vaila'au fa'ama'i, suau'u ma isi mea i totonu o se fa'ama'i malosi ae fa'amama i le tele o faiga fa'apipi'i. O le polyurethane faʻamalolo e galue o se fafie i ia faʻafefiloi. Mo se faʻataʻitaʻiga o le mea faʻamalosi e pei o le "HTPB / AP / Al = 12/68/20", o lona uiga, faʻatusatusa i le tele, HTPB faʻatasi ai ma togafitiga 12% (faʻamau ma suauʻu), ammonium perchlorate 68% (oxidizer), ma le alumini paʻu 20% (suau'u).

O mea fa'apipi'i tutusa, e masani ona ta'ua o le APCP (ammonium perchlorate composite propellant) o lo'o fa'aaogaina i roketi lapopoa. O se APCP masani e maua ai le 2-3 taimi o le malosi patino o le paʻu paʻu uliuli faʻaaogaina i le tele o afi roketi laiti.

O le HTPB o loʻo faʻaaogaina foʻi e fai ma suauʻu roketi hybrid.

O faʻatinoga o meatotino a le HTPB e pei ona taua i lalo:

1. Hydrophobicity

2. Vaega hyroxyl fa'agaoioi

3. Matagofie suiga vevela vevela

4. lanu maualalo - maualuga le manino o le vai viscous

5. Tetee i le hydrolysis

6. Tete'e maualalo vevela

7. Mau'u susu susū

8. Tete'e i vai acids ma faavae

9. Malosi fa'alavalava tete'e

10. Faʻapipiʻi lelei i mea eseese

11. Eletise insulative meatotino