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FB Ntshav Kub Boron Hloov Phenolic

FB Ntshav Kub Boron Hloov Phenolic

FB kub boron hloov kho phenolic resin yog qhov tshuaj nyob rau hauv nws cov qauv molecular BO tus tseem ceeb, txij li lub zog nyiaj ntawm BO qhov tseem ceeb muaj zog dua CC qhov tseem ceeb txuas benzene nplhaib ntawm cov phenolic cob, yog li nws cov oxidation tsis kam thiab siab ua hauj lwm kub ua rau zoo dua rau cov pa ua kom tsis muaj zog phenolic, thiab tseem muaj cov yam ntxwv zoo ntawm thermal stability, ablation tsis kam, siab cov pa roj carbon ntau, nplaim taws rov qab, haus luam yeeb tsawg, tsis tshua muaj tshuaj lom thiab muaj txiaj ntsig zoo. Yog li nws thiaj li tau siv dav hauv qee qhov chaw tshaj tawm thiab lwm yam kev lag luam kev lag luam xws li siab kub, kev tiv thaiv hluav taws kub txheej, cov khoom tiv thaiv tsis zoo, cov khoom siv tiv taus, cob raws cov khoom siv, cov khoom siv rwb thaiv tsev, carbon / carbon khoom, carbon / ceramic khoom, phenolic resin raws carbonized haumxeeb cov ntaub ntawv, thiab lwm yam.
Xa kev nug

FB kub boron hloov kho phenolic

MAJOR NTA


(1) Cov khoom tuaj yeem xa mus rau cov neeg siv dag zog, kua thiab hmoov ntawm lub cev hnyav molecular;

(2) Nws cov kev txiav txim siab kub tau zoo tshaj 500 ℃, tseem tshuav 50% cov pa roj carbon monoxide tus nqi nyob rau1000 ℃, muaj lub suab ua haujlwm thermal laus;

(3) Nws cov pa oxygen yog 48.5, tsis xeb, feem ntau haus luam yeeb thiab tsis mob toxic;

(4) Cov linear ablative tus nqi yog -0.079 mm / s, huab hwm coj ablation tus nqi yog 0.0333 g / s;

(5) Nws tuaj yeem siv los npaj ntau tus neeg sawv cev ntawm epoxy resin, uas muaj peev xwm ua tau E hom epoxy resin zam qhov kub siab txog 200 ℃ ntev ntev, tseem tseem ua lub zog ntawm 1.5 Mpa los ntawm 500 ℃ / 1h. Ntxiv mus, nws tseem tuaj yeem raug tso ua ke nrog phenolic epoxy thiab polyfunctional epoxy cob;

(6) FB resin tuaj yeem kho tau los ntawm cua kub yam tsis ntxiv hexamethylenetetramine; (7) Nws tuaj yeem ua tiav nrog epdm, nitrile roj hmab ntawm ntau cov hluavtaws sib tsoo thiaj li txhim kho ablation tsis kam, nplaim taws rov qab ua kom cov khoom thiab lub zog ntawm cov khoom siv roj hmab;

(8) Nws tuaj yeem yaj nyob hauv kev daws teeb meem hauv kev tiv thaiv ib puag ncig. Nrog cov ua cim ntawm tsis muaj viscosity, nws tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm impregnation / densification ntawm resin matrix ablation khoom, C / C khoom siv thiab carbon graphite khoom.

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