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《Journal of Nuclear Agricultural Sciences》 2010-02
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PREPARATION OF SUPER ABSORBENT RESIN OF STARCH GRAFTED ACRYLIC ACID BY ~(60)Co γ-IRRADIATION

LIU Xiu-qing1 FENG Jian2 PAN Hai-fa3 ZHANG Tie1(1.State Forestry Radiation Center,Hefei,Anhui 230036;2.Anhui Gosun Agricultural Tech Co.,Ltd,Hefei,Anhui 230088;3.Anhui Academy of Agricultural Sciences Horticultural Institute,Hefei,Anhui 230031)  
To prepare super absorbent resin,starch and acrylic acid were irradiated by 60Co γ-rays to induce graft polymerization reaction.The effect of gelatinization temperature,neutralization degree of acrylic acid,irradiation dose,amount of acrylic acid and crosslinking agent on absorption ability of absorbent resin were studied.The results of orthogonal experiment indicated that the optimal synthetic conditions were:3g starch,mixed with 21ml of water,gelatinizing the starch at 90℃ for 15min,neutralization degree of acrylic acid 80% ,the ratio of acrylic acid and strach(V/W) 3 ∶ 1,0.9% N,N-methylene bisacrylamide 0.5ml,irradiation dose 3kGy and vacuum dried at 60℃ .The prepared resin per gram can absorb 766ml distilled water,278ml tap water,and 64ml 0.9% NaCl.
【CateGory Index】: TQ324.8
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