黄原胶改性三元共聚高吸水树脂的制备及其生物降解性能  

Preparation and biodegradability of terpolymer super absorbent resin by blending modification with xanthan gum

作　　者：周爱军[1] 管政[1] 张皖苏[1] 时楠[1] 张泽[1] 何骙 胡静璇[1] 

机构地区：[1]武汉工程大学材料科学与工程学院,武汉430074

出　　处：《化工新型材料》2016年第4期143-145,共3页New Chemical Materials

基　　金：国家自然科学基金项目(50773059);湖北省科技攻关项目(2002AA07B02)

摘　　要：以丙烯酸(AA)和丙烯酰胺(AM)为单体,采用微波辐照法对天然高分子黄原胶(XG)进行接枝改性,制备了一种可生物降解的三元共聚高吸水树脂。研究了黄原胶、交联剂、引发剂用量等与高吸水树脂的吸水倍率之间的关系。通过抗霉菌性能测定及CO_2释放量测定研究了树脂的生物降解性能。采用红外光谱仪对三元共聚高吸水树脂结构进行了表征。结果表明,当w(黄原胶)=3%、w(交联剂)=1.5%、w(引发剂)=0.8%时,所制备的三元共聚高吸水树脂的性能最优,吸水倍率为680.4g/g,在土壤中埋置60d后的降解率可达40.8%,且能被特定的菌种所降解。A new type of terpolymer super absorbent resin by blending modification with xanthan gum was prepared which used acrylic acid and acryl amide as monomers in the way of microwave irradiation.The impact factors of synthesizing resin such as the amount of initiator and crosslinking agent,the weight ratio of xanthan gum were discussed by experiment.The biodegradability of resin was discussed by fungus resistance and carbon dioxide emissions experiment.The fourier transform infrared spectroscopy（FT-IR）and thermo gravimetric analyzer（TGA）were used to the characterization of copolymer.The results showed that the best weight ratio of xanthan gum was 3%,the mass fraction of initiator was 0.8%,and the mass fraction of crosslinking agent was 1.5%,while the water absorption was 680.4g/g,the degradation degree could be up to 40.8% within 60 days.It could be degraded by soil and specific microbes.

关 键 词：黄原胶 丙烯酸 丙烯酰胺 高吸水树脂 生物降解性能 

分 类 号：TQ324.8[化学工程—合成树脂塑料工业]