Synthesis and Characterization of Biodegradable Superabsorbent Resin Based on Flax Shive Cellulose and Acrylic Acid under Microwave Irradiation
Superabsorbent polymer was prepared by graft polymerization of acrylic acid onto the chain of cellulose from flax shive by using potassium persulfate(KPS) as an initiator and N,N’-methylenebisacrylamide (MBA) as a crosslinker under microwave irradiation. SEM photographs were also studied for more information about the shive, cellulose from shive, and the superabsorbent polymer. The structure of the graft copolymer was confirmed by FT-IR spectroscopy and thermogravimetric analysis (TGA). The biodegradability in soil was measured at 32 and 40 ℃. The polymer was porous, and thermal stability of the polymer was observed up to approximately 200 oC. FT-IR analysis indicated that acrylic acid in polymer was successfully grafted onto the cellulose. The graft copolymer was found to be an effective superabsorbent resin, rapidly absorbing water to almost 1000 times of its own dry weight. The product biologically degraded up to 40％ at 40℃ in 54 days.
Superabsorbent polymer Graft copolymerization Flax shive cellulose Acrylic acid Microwave irradiation Biodegradability
Li-juan WANG Hao FENG
Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, 26 Hexing road, Harbin 150040, P. R. China
国际会议
南京
英文
453-458
2010-10-22（万方平台首次上网日期，不代表论文的发表时间）