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ti Bin tnh b mt si nanocellulose GVHD: TS. V MINH C SVTH: HONG DUY HNH LP : POLYME K53

Gii thiuSn phm thn thin vi mi trng.Sn xut bi vi khun khi nui cy chng trong mi trng dch th glucozC nhng tnh cht c bitC nhiu ng dng trong khoa hc sn xut

Nanocellulose vi khun tinh khit caoHm lng tinh th cao: 90%Kh nng phn hy sinh hc hon tonKh nng hp th nc n 99%i lc sinh hc ttC th trng thi tinh th hay trng thi gel.Tnh cht xp.C kh nng to hnh.

Nanocellulose vi khunTnh cht ca Nanocellulose vi khunNanocellulose vi khunC modul n hi cao: 15 30 Gpang knh si 24 86 nmDin tch b mt ln bn nhit ln: 200o C bt u b phn hy. 400oC mi b phn hy hon ton

Hnh 1.2: Cu trc ca si cellulose vi khun ng u nhau

Tnh cht ca Cellulose vi khunNanocellulose vi khun

Hnh1: Cu trc ha hc ca xenlulo

Hnh 2: Cu trc dng gh ca xenlulon: 2000 6000 Cu trc ca cellulose

Nanocellulose vi khunTng hp

Y t

Vi siNanocellulose vi khunng dng ca nanocelluloseTEMPONanocellulose SILYLATIONHng nghin cuBIN TNH BNG TEMPO

TEMPO t oxy ha ru bc nht trong mi trng kim bi ion nitrosoniumTEMPO qua oxy ha trung gian- (2,2,6,6-tetrametylpiperidin-1-yl)oxidanyl vi gc t do-Cng thc (CH2)3(CMe2)2NOTEMPOBIN TNH BNG TEMPO

M t c ch qu trnh oxy ha cellulose thng qua h thng TEMPO / NaOCl / NaBr trong mi trng kimC ch:BIN TNH BNG TEMPOKt qu:

Ch b mt si c thay i to ra lp in tch m trn b mt(-COO-)BIN TNH BNG TEMPOKt qu:Ch b mt si c thay i to ra lc y tnh in trn b mt cc si nanocellulose

BIN TNH BNG SILYLATIONSilylation

Clopropyltriclosilane (CPTCSi)Clopropyltriethoxysilane (CPTESi)

BIN TNH BNG SILYLATIONPhn ng

BIN TNH BNG SILYLATIONKt qu

Mch cellulose sau khi bin tnhBIN TNH BNG SILYLATIONKt qua - a nc,cu trc b si nguyn vnb - k nc,cu trc si khng thay ic - phn hy v ha tan mt phn

BIN TNH BNG SILYLATIONKt qu

Celulose b phn hy v ha tan mt phn khi nng closilan qu caoThank You !