Preparation and Properties Studies of Cellulose Super Absorbent Polymer

Abstract

In this paper, super absorbent polymer was prepared through graft copolymerization by cellulose and acrylic acid (AA), acrylamide (AM), and butyl methacrylate (BMA) and its properties were determined. It showed that optimum reaction condition is the amount of cellulose, AA, AM and BMA is 10g, 4.5g, 2g and 1.5g respectively, the amount of initiator (potassium persulfate) and N,N'-methylene bisacrylamide is 0.01g and 0.012g, the pH value of AA after neutralization is 7. The water absorbency to distilled water, tap water and salt solution of super absorbent polymer which was prepared under these conditions is 770g/g, 113g/g and 86g/g respectively. The water retention rate of super absorbent polymer gel drops to 3% needs 130 hours under natural condition. It was expected that super absorbent polymer can be used for preservation processing of fruits.

Categories and Application Fields and Manufacturing Process and Action Mechanism of Water Retaining Agent

“…The synthesis of organic-inorganic composite water retaining agent is of great significance for the efficient development of natural mineral resources and the improvement of the utilization value of minerals. In addition, in recent years, many universities and research institutes have chosen to use some raw materials with wide sources and low prices to develop and prepare other new water retaining agent products with strong water absorption capacity, fast water absorption speed, long duration, low price, and wide application range, such as bamboo fiber grafted acrylate polymer water retaining agent [12], seaweed biological water retaining agent [13], modified cotton stalk cellulose salt resistant water retaining agent [14], apple pomace water retaining agent [15], and other new water retaining agents [16][17][18], which have the advantages of easy degradation, green environmental protection, and low cost.…”

Non‐leaching antimicrobial cellulose‐based membrane for food packaging: Effect on food‐borne bacteria, probiotic bacteria, and spoilage of Karish cheese

“…Most likely, water‐based polymerization techniques such as emulsion polymerization are the best choice as some monomers are not water soluble. Such a technique can also yield products with higher solid contents at lower viscosities, which is desirable from a polymer processing standpoint (Brock Thomas et al, 2006; Dettmer et al, 2009; Liu et al, 2011).…”

Enhanced Absorbent Products Incorporating Cellulose and Its Derivatives: A Review

“…In typical cases the latter value is less than half of the absorption capacity in the case of pure water. Especially sharp contrasts in capacity, when comparing deionized vs. saline water, have been reported in the case of superabsorbent hydrogels (Lim et al 2001;Suo et al 2007;Zhang et al 2008bZhang et al , 2009Kim and Mun 2009;Liang et al 2009;Pourjavadi et al 2008Pourjavadi et al , 2009Chang et al 2010;Bao et al 2011;Liu et al 2011;Wang et al 2011a,c,d;Wu et al 2012).…”

“…Considerable research has been devoted to the development of copolymers in which CMC is reacted with acrylic monomers and various crosslinking agents to form SAPs (Kuwabara and Kubota 1996;Pourjavadi and Mahdavinia 2005;Pourjavadi and Ghasemzadeh 2006;Abd El-Mohdy 2007;Ibrahim et al 2007;Pourjavadi et al 2007aPourjavadi et al -b, 2008Pourjavadi et al , 2009Pourjavadi et al , 2010Suo et al 2007;Ali et al 2008;Chen et al 2008;Yang et al 2009;El-Din et al 2010;Feng et al 2010a;Lin et al 2010;Bao et al 2011;Eldin et al 2011;Huang et al 2011;Liu et al 2011;Shu et al 2011;Varaprasad et al 2011;Wang et al 2011c). Water absorbency values generally in the range of 40 to 1400 g/g have been reported in such studies, with the highest value reported by Pourjavadi et al (2008).…”

“…Such results show that it is possible to blur the distinction between what is a surface-modified fiber and what is a true hydrogel. Indeed, a unique class of highly absorbent materials has been achieved by basically skipping the conversion of cellulose to CMC, etc., and just grafting cellulose directly, often in combination with crosslinking (Fanta et al 1987;Yoshinobu et al 1992;Gürdağ et al 2001;Farag and Al-Afaleq 2002;Ibrahim and El-Zawawy 2004;Kim and Mun 2009;Yoshimura et al 2006;Liu et al 2009Liu et al , 2011Feng et al 2010a;Zhang et al 2010;Goetz et al 2011;Shu et al 2011;Kono and Fujita 2012;Pan and Ragauskas 2012;Wu et al 2012;Xie et al 2012;). Thus, hydrogels will be discussed next.…”