Efficiency of Different Acetylation Methods Applied to Cellulose Fibers Waste from Pulp and Paper Mill Sludge. Issue 1 (2nd January 2022)

• Record Type: Journal Article
• Authors: Souza Da Rosa, Thiago; Trianoski, Rosilani; Michaud, Franck; Belloncle, Christophe; Iwakiri, Setsuo
• Is Part Of: Journal of natural fibers. Volume 19:Issue 1(2022)
• Page Start: 185
• Page End: 198
• Publication Date: 2022-01-02
• Subjects: Esterification -- chemical modification -- surface chemistry -- cellulose acetate -- recovered cellulose fibers; 酯化反应 -- 化学改性 -- 表面化学 -- 醋酸纤维素 -- 回收纤维素纤维; Textile research -- Periodicals; Textile research; Periodicals; 677.005
• DOI: 10.1080/15440478.2020.1731909
• Languages: English
• ISSNs: 1544-0478

Abstract

ABSTRACT: In this study, the viability of acetylation in cellulose fibers waste (CFW) from pulp and paper mill sludge was investigated in comparison to bleached cellulose fibers (BCF). Four acetylation methodologies were applied. The inorganic ash composition of the CFW was determined by Energy Dispersive X-ray Spectrometry (EDS). The Degree of substitution (DS) of the acetylated fibers and their characterization using Fourier Transformed Infrared (FT-IR), X-ray diffraction (XRD), Thermogravimetric analysis (TGA), and Scanning electronic microscopy (SEM) were carried out. Results showed that the different acetylation methods are not effective for the esterification of CFW largely due to a high mineral content in their composition. The acetylation promoted the removal of the inorganic content in the CFW resulting in low efficacy levels. In BCF, higher efficiency levels were achieved, varying according to the methods. The different acetylation methods showed an efficiency range from 0.02 to 1.76 depending on the type of fiber.