室温下采用水溶液聚合法,合成了膨润土/高岭土/聚丙烯酸钠复合高吸水树脂,研究了复合粘土配比、用量对聚合反应过程以及树脂吸水(蒸馏水、盐水)、保水性能的影响.结果表明:增加复合粘土中膨润土的比例,或增大复合粘土用量,均会使聚合过程诱导时间缩短,等速期的聚合反应速率加快,树脂的吸水能力也随之增强;将两种粘土复合有利于提高树脂的起始吸水速率,饱和吸盐水倍率则和单独添加膨润土吸水材料相当;当m(高岭土):m(膨润土)=2:1,树脂同时具有较佳的吸盐水速率和饱和吸盐水倍率;复合粘土配比对树脂的保水性能影响不明显,m(复合粘土)由5%增至40%时,树脂的保水能力先增加后降低,m(复合粘土)=10%时保水性能最优.
参考文献
| [1] | Ji Zhang;Kun Yuan;Yun-Pu Wang .Preparation and properties of polyacrylate/bentonite superabsorbent hybrid via intercalated polymerization[J].Materials Letters,2007(2):316-320. |
| [2] | Junping Zhang;Qin Wang;Aiqin Wang .Synthesis and characterization of chitosan-g-poly(acrylic acid)/attapulgite superabsorbent composites[J].Carbohydrate Polymers: Scientific and Technological Aspects of Industrially Important Polysaccharides,2007(2):367-374. |
| [3] | Pourjavadi A;Ghasemzadeh H;Soleyman R .Synthesis, characterization, and swelling behavior of alginate-g-poly(sodium acrylate)/kaolin superabsorbent hydrogel composites[J].Journal of Applied Polymer Science,2007(5):2631-2639. |
| [4] | Lee WF;Chen YC .Effect of intercalated reactive mica on water absorbency for poly(sodium acrylate) composite superabsorbents[J].European Polymer Journal,2005(7):1605-1612. |
| [5] | 唐祥虎,范力仁,沈上越,徐志良,许剑.辉沸石/聚丙烯酸（钠）高吸水保水性复合材料合成研究[J].非金属矿,2006(01):20-23. |
| [6] | Zheng Y;Li P;Zhang JP;Wang AQ .Study on superabsorbent composite XVI. Synthesis, characterization and swelling behaviors of poly(sodium acrylate)/vermiculite superabsorbent composites[J].European Polymer Journal,2007(5):1691-1698. |
| [7] | Ruttscheid A;Borchard W .Synthesis and characterization of glass-containing superabsorbent polymers[J].European Polymer Journal,2005(8):1927-1933. |
| [8] | 程争光,沈上越,范力仁,谢皎.伊利石高吸水性复合材料的制备工艺研究[J].化工矿物与加工,2006(01):10-12. |
| [9] | 范力仁,王春龙,栗海峰,景录如,沈上越.累托石/聚丙烯酸（钠）-丙稀酰胺吸水保水复合材料的制备及性能[J].地球科学-中国地质大学学报,2007(01):105-110. |
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