摘要
以水溶液聚合法制备了魔芋接枝丙烯酸-丙烯酰胺共聚物/凹凸棒石复合材料。考察了魔芋用量、凹凸棒石用量、中和度、丙烯酰胺用量等因素对复合材料吸液倍率的影响,并采用FTIR,SEM对复合材料进行表征。结果表明,凹凸棒石的适量加入可以提高复合材料的吸液倍率。当魔芋用量为丙烯酸单体质量的4%、凹凸棒石用量为6%、中和度为90%、丙烯酰胺用量为20%时,制备的复合材料的吸液倍率最高。红外光谱(FTIR)表明魔芋葡甘聚糖、丙烯酸、丙烯酰胺和凹凸棒石共同参与了接枝聚合反应;扫描电子显微镜(SEM)分析表明凹凸棒石与高分子复合效果良好。
A novel superabsorbent composite of konjac glucmannan with acrylic acid-acrylamide copolymers/attapulgite was synthesized by aqueous solution polymerization.The effects of the amount of konjac glucmannan,attapulgite,acrylamide and the degree of neutralization of acrylic acid on water absorbency were investigated.The structure and morphology of superabsorbent composites were characterized by Fourier transform infrared spectra（FTIR） and scanning electron microscope（SEM）.The results show that the participant of attapulgite improves the absorbancy of the composite.When the content of konjac glucmannan is 4% of acrylic acid mass,the dosage of attapulgite is 6%,the dosage of acrylamide is 20 %,and the degree of neutralization of acrylic acid is 90 %,the absorbancy of the composite is the highest.The results from FTIR spectra show that konjac glucmannan and attapulgite participate in graft polymerization reaction with acrylic acid and acrylamide.SEM shows that attapulgite combines well with the copolymer matrix.
出处
《化学工程》
CAS
CSCD
北大核心
2012年第3期8-11,66,共5页
Chemical Engineering(China)
基金
湖北省自然科学基金资助项目(2010CDB00903)
湖北省高等学校优秀中青年科技创新团队计划资助项目(T201006)
湖北省教育厅科学技术研究重点项目(D20111902)
催化材料科学湖北省暨国家民委-教育部共建重点实验室开放基金项目(CHCL0506)
生物资源保护与利用湖北省重点实验室开放基金项目(PKLHB1106)
湖北民族学院大学生创新重点项目(2011A003)资助
关键词
魔芋
凹凸棒石
丙烯酸
丙烯酰胺
复合材料
konjac glucmannan attapulgite acrylic acid acrylamide composite
