Pretreatment of different materials: An international perspective . Mohammad J. Taherzadeh School of Engineering University of Borås. A variety of lignocelluloses are attractive in different reagions!. Complex plants cell walls. A challenge by lignin and hemicellulose!. Hemicellulose.
Pretreatment of different materials: An international perspective
Mohammad J. Taherzadeh
School of Engineering
University of Borås
Helical form of a 6 by 6 nm nanofibrils is compared with that of nine 2 by 2 helical nanofibrils packed as close as possible, with the same period.
The fibrils were twisted individually and then the assembly also twisted.
The individual fibrils were twisted of 90°over 300 nm and then packed as closely as possible
The fibrils were collectively subjected to twist.
Cellulose is deposited alone
The most efficient load-bearing structure
Would not be mechanically stable
Temperature elevation changes the state of aggregation of native cellulose.
Drying results in distortion of nanofibrils by:
Removing too much of the water needed to lubricate the motion of the nanofibrils relative to each other.