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
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.
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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