Preparation, characterization, and biodegradability of jute‐based natural fiber composite superabsorbents

Abstract

Jute (Corchorus capsularis) based natural fiber composites were prepared by a series of experiments such as pulping, bleaching, and grafting with butyl acrylate (BA) together with a crosslinker, N,N -methylene-bis-acrylamide (MBA) and finally embedding the copolymer with sodium silicate (SS) additive using a complex initiating system CuSO 4 /histidine/potassium peresulfate (KPS). The (crosslinked jute pulp-g-PBA)/SS composites so obtained were characterized by FT-IR and TGA, and their morphology was imaged by scanning electron microscopy (SEM). The tensile properties, superabsorbency, and biodegradability of these composites in soil and sludge water were evaluated for their novel commercial importance as jute-based superabsorbents. The water absorption of the grafted composites with SS was more than 35 times greater than that of the ungrafted fiber. The biodegradability of the grafted crosslinked composite with SS was lower than the other samples due to dispersed silicate layers in the composite matrix. C 2005 Wiley Periodicals, Inc.

Synthesis and properties of carboxymethyl cellulose‐graft‐poly(acrylic acid‐co‐acrylamide) as a novel cellulose‐based superabsorbent

“…7,25,26 Cellulose is one of the main constituents of natural plant fibers such as cotton, wood, and jute. 27 Its derivatives are among the main raw materials used for synthesizing early superabsorbent polymers. [28][29][30] To synthesize successful superabsorbent polymers based on cellulose, the techniques mostly used are (1) the crosslinking graft copolymerization of hydrophilic vinyl monomers such as acrylic acid (AA) and acrylamide (AM) onto cellulose or its derivatives and (2) the crosslinking of cellulose derivatives with difunctional molecules such as divinyl sulfone as crosslinkers because they themselves possess nonideal water absorption, strong hydrogen bonds among cellulose molecules, high crystallinity, and poor water-soluble and forming properties.…”

Yellowing tendency of ozonated cotton fabric and ways to prevent this undesirable side effect

“…Downloaded by [University of Arizona] at 08:20 11 June 2016 Table 4. Infrared transmittance peaks (cm −1 ) of greige and treated samples (Garside & Wyeth, 2003;Liu, Yu, & Huang, 2005;Mwaikambo & Ansell, 2002;Rana, Basak, Mitra, Lawther, & Banerjee, 1997;Sahoo, Sahu, Rana, & Das, 2005;Samal, Acharya, Mohanty, & Ray, 2001;Subramanian, Kumar, Jeyapal, & Venkatesh, 2005;Wang, Fan, Gao, & Chen, 2006 But removing only the ozone by-products and residues was shown enough restriction to the decrease in whiteness during storage. By washing the samples after the ozonation, some unstable free radicals were more likely to be removed so that the fabric appeared to be more stable with regard to its whiteness after a storage period, compared with an unwashed ozonated sample.…”

A brief review on the chemical modifications of lignocellulosic fibers for durable engineering composites

“…However, grafting of AN on alkali-treated oil palm fiber reportedly led to substantial reduction in tensile strength [40]. Jute fiber has been grafted with butyl acrylate (BA) via N,N 0 -methylene-bis-acrylamide (MBA) cross linker and coated subsequently with sodium silicate (SS) using CuSO 4 /histidine/potassium persulfate initiator [47]. The product was found to absorb more water compared to a similar ungrafted composite.…”