Improving cellulose nanofibrillation of non-wood fiber using alkaline and bleaching pre-treatments was written by Fonseca, Alessandra S.;Panthapulakkal, Suhara;Konar, Samir K.;Sain, Mohini;Bufalino, Lina;Raabe, Joabel;Miranda, Ires Paula A.;Martins, Maria Alice;Tonoli, Gustavo Henrique D.. And the article was included in Industrial Crops and Products in 2019.Product Details of 10543-57-4 This article mentions the following:
This study aimed to investigate the effect of alk. and bleaching pre-treatments on nanofibrillation of jute fibers and on mech. performance of the ensuing cellulose films. Fibers were submitted to mild or strong alk. pre-treatments. Then, only after mild alk. pre-treatment, the fibers were pre-treated with two different bleaching pathways. Succeeding, cellulose nanofibrils were produced by mech. defibrillation of the pre-treated fibers, while cellulose films were obtained by dewatering (suction) of the cellulose suspensions. Com. bleached wood (Eucalyptus and Pinus) pulps were used as reference sources of cellulose fibers. Transmission electron microscopy (TEM) was used to investigate the morphol. of the obtained cellulose nanofibrils. Cellulose films were compared by their tensile properties. Defibrillation process was highly influenced by chem. pre-treatments. By the morphol. analyses, the most effective nanofibrillation was observed for fibers pre-treated with tetraacetylethylenediamine (TAED), leading to nanofibrils with average diameter of around 20 nm. The crystalline index (CI) was higher for nanofibrils from pre-treated fibers (CI > 80%) when compared to the raw fibers (CI = 61%). Jute fibers pre-treated with TAED bleaching led to higher nanofibrillation, resulting on films with higher tensile strength and Young’s modulus, which were similar to mech. properties of those from com. wood pulp. In the experiment, the researchers used many compounds, for example, N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide) (cas: 10543-57-4Product Details of 10543-57-4).
N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide) (cas: 10543-57-4) belongs to amides. Amides are pervasive in nature and technology. Proteins and important plastics like Nylons, Aramid, Twaron, and Kevlar are polymers whose units are connected by amide groups (polyamides); these linkages are easily formed, confer structural rigidity, and resist hydrolysis. Amides can be freed from solvent or water by drying below their melting points. These purifications can also be used for sulfonamides and acid hydrazides.Product Details of 10543-57-4
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Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics