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化工新型材料  2019, Vol. 47 Issue (4): 129-133    
  科学研究 本期目录 | 过刊浏览 | 高级检索 |
光/生物双降解纳米TiO2/CMC基高吸水树脂的合成及性能研究
余响林1,王哲1,刘佳俊1,万佳琪1,雍定利2,黎俊波2
1.武汉工程大学化工与制药学院,绿色化工过程教育部重点实验室,武汉430074;
2.武汉工程大学化学与环境工程学院,武汉430074
Synthesis and property of nano-TiO2/CMC superabsorbent polymer with high bio- and optical degradability
Yu Xianglin1, Wang Zhe1, Liu Jiajun1, Wan Jiaqi1, Yong Dingli2, Li Junbo2
1.Key Laboratory for Green Chemical Process of Ministry of Education,School of Chemical Engineering &Pharmacy,Wuhan Institute of Technology,Wuhan 430074;
2.School of Chemical and Environmental Engineering,Wuhan Institute of Technology,Wuhan 430074
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摘要 以丙烯酸、丙烯酰胺和羧甲基纤维素(CMC)为原料,加入改性纳米TiO2颗粒,采用反相悬浮聚合法制备光/生物双降解纳米TiO2/CMC基高吸水树脂。采用傅里叶变换红外光谱仪、扫描电子显微镜和X射线衍射仪对高吸水树脂进行了表征并分析了其结构。研究了引发剂用量、交联剂用量和油水(环己烷、水溶液)体积比对高吸水树脂性能的影响。在引发剂用量为0.85%(质量分数),交联剂用量为0.08%(质量分数),油水体积比为4∶1条件下,纳米TiO2/CMC基高吸水树脂吸蒸馏水倍率为838.3g/g,吸0.9%生理盐水倍率为90.3g/g,在土壤中98d降解率达28.72%,紫外光照射下降解率在48h内达到27.78%,说明制备的高吸水树脂具备较强的生物和光降解能力,有望应用于农林业中作物的保水保肥。
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余响林
王哲
刘佳俊
万佳琪
雍定利
黎俊波
关键词:  降解  高吸水树脂  TiO2  羧甲基纤维素  丙烯酸    
Abstract: Nano-TiO2/CMC superabsorbent polymer was prepared by inverse suspension polymerization method which AA,AM and carboxymethyl cellulose (CMC) were used as raw materials,and then the superabsorbent polymer was obtained with adding the nano-titanium dioxide particles.The structure of product was characterized by fourier transform infrared absorption spectroscopy,scanning electron microscopy and X-ray diffraction.The optimized parameters for superabsorbent production were as follows:the initiator dosage was 0.85%,the crosslinking agent dosage was 0.08% and the ratio of oil to water was 4∶1.Under this condition,the absorbency of superabsorbent polymer to distilled water and saline water (0.9%) was 838.3g/g and 90.3g/g,respectively.The soil degradation rate reached 28.72% in three months,and the UV degradation rate reached 27.78% in 48h.The results inferred that nano-TiO2/CMC superabsorbent polymer had strong biological and optical degradation ability that can be applied to the water and fertilizer conservation of crops in agriculture and forestry.
Key words:  degradation    superabsorbent polymer    titanium dioxide    carboxymethyl cellulose    acrylic acid
                    发布日期:  2019-05-20      期的出版日期:  2019-05-20
基金资助: 国家自然科学基金(51203127);湖北省教育厅优秀中青年项目(20121509);武汉市科技局青年科技晨光计划项目(201050231049);绿色化工过程省部共建教育部重点实验室开放基金项目(GCP201003);武汉工程大学科学研究基金(10092012);武汉工程大学研究生教育创新基金(CX2017111)
作者简介:  余响林(1980-),女,博士,副教授,主要研究方向为功能高分子材料。
引用本文:    
余响林,王哲,刘佳俊,万佳琪,雍定利,黎俊波. 光/生物双降解纳米TiO2/CMC基高吸水树脂的合成及性能研究[J]. 化工新型材料, 2019, 47(4): 129-133.
Yu Xianglin, Wang Zhe, Liu Jiajun, Wan Jiaqi, Yong Dingli, Li Junbo. Synthesis and property of nano-TiO2/CMC superabsorbent polymer with high bio- and optical degradability. New Chemical Materials, 2019, 47(4): 129-133.
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http://www.hgxx.org/CN/  或          http://www.hgxx.org/CN/Y2019/V47/I4/129
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