CAS 69102-90-5 HTPB khoom propellant Hydroxyl-terminated polybutadiene HTPB rau propellant, nplaum, sealant

HTPB yog cov kua roj hmab tej thaj chaw deb polymer, cov kua roj hmab tshiab. Cov khoom sib txawv vim tias HTPB yog qhov sib tov ntau dua li cov khoom siv ntshiab, thiab nws yog tsim los ua kom tau raws li cov neeg siv khoom tshwj xeeb. Ib tug raug HTPB yog R-45M nrog txhua qhov kawg ntawm cov saw txiav nrog ib pawg hydroxyl [OH]. (PS: peb tuaj yeem ua txhua yam ntawm HTPB raws li cov neeg siv khoom thov, thiab tsim qauv tshiab HTPB nrog ib txoj hlua ntawm hydroxyl -OH, Meanwhile, peb tuaj yeem ua hydrogenation ntawm HTPB)

Nws thiab saw txuas ntxiv tus neeg sawv cev, tus neeg sawv cev crosslinking nyob rau hauv chav tsev kub lossis kub cov tshuaj tiv thaiv tuaj yeem tsim 3D network qauv ntawm kev kho cov ntsiab lus.Cov ntsiab lus kho muaj cov khoom siv zoo heev, tshwj xeeb tshaj yog zoo tiv thaiv hydrolysis, acid thiab alkali resistant, hnav tsis kam, kub tsis kam thiab zoo heev hluav taws xob rwb thaiv tsev.

Polyurethanes npaj los ntawm HTPB tuaj yeem tsim kho rau lub cev tshwj xeeb; polyurethanes tej zaum yuav elastic heev los yog tawv thiab nruj. Qee cov khoom muaj xws li: nruj npuas rwb thaiv tsev panels; elastomeric log thiab log tsheb (siv rau cov menyuam coasters, escalators, skateboards, thiab lwm yam); automotive suspension bushings; hluav taws xob potting compounds; high-kev ua tau zoo adhesives; nto coatings thiab nto sealants; hluavtaws fibers (piv txwv li, Spandex); ntaub pua plag underlay; hard-yas qhov chaw (xws li, rau cov twj siv hluav taws xob).

Daim ntawv thov tseem ceeb ntawm HTPB yog nyob rau hauv cov khoom siv foob pob hluav taws. Nws khi cov oxidizing tus neeg sawv cev, roj thiab lwm cov khoom xyaw rau hauv ib qho khoom tab sis elastic loj nyob rau hauv feem ntau composite propellant systems. Cov polyurethane kho tau ua raws li cov roj hauv cov khoom sib tov. Piv txwv li cov propellant li "HTPB/AP/Al=12/68/20", uas txhais tau hais tias, proportioned los ntawm loj, HTPB ntxiv rau curative 12% (binder thiab roj), ammonium perchlorate 68% (oxidizer), thiab txhuas hmoov 20% (roj).

Cov tshuaj tiv thaiv zoo sib xws, feem ntau hu ua APCP (ammonium perchlorate composite propellant) yog siv hauv cov qauv foob pob hluav taws loj. Ib qho APCP raug tsim tawm 2-3 zaug ntawm qhov tshwj xeeb impulse ntawm cov hmoov av dub siv hauv feem ntau cov foob pob hluav taws me me.

HTPB kuj tseem siv los ua cov roj foob pob hluav taws hybrid.