商用聚丙烯酸类高吸水树脂粒子尺寸及分布与其凝胶浓度的关系
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摘要
研究了6种商用聚丙烯酸类高吸水树脂(SAP)粒子尺寸大小及分布对其形成凝胶的临界浓度的影响,通过傅里叶变换红外光谱、X射线光电子能谱对样品的成分进行了分析,使用光学显微镜和Image J软件统计了样品未吸水时粒子的尺寸及分布,通过测定样品吸水后的膨胀比,估算得到了样品吸水后的粒子的尺寸及分布,用流变学方法和倒置实验法测定了高吸水树脂形成凝胶的临界浓度(凝胶点)。结果表明,这6种商用聚丙烯酸类高吸水树脂吸水后的粒子的尺寸大小对其形成凝胶的临界浓度的影响不符合理论预测,这是由于粒子尺寸分布宽度不均一造成的。在选择粒子大小分布占优的均一范围内,样品的凝胶浓度随着粒子尺寸的增大而降低。
The effects of particle size and distribution of six commercial polyacrylic superabsorbent resins( SAP) on the critical concentration of gel formation were studied. The compositions of the samples were analyzed by infrared spectroscopy and X-ray photoelectron spectroscopy. The size and distribution of particles of dry samples were counted by using polarized light microscopy and ImageJ software,and were estimated by measuring the expansion ratio of the sample after water absorption. The critical gelation concentration of these superabsorbent resins was determined by rheological method and inverted experiment. The results show that the effect of the particle sizes of the six commercial polyacrylic superabsorbent resins on gel formation is not consistent with the corresponding theoretical prediction,which is caused by the uneven width of the particle size distribution. In the uniform range dominated by particle size distribution, the critical gelation concentration of the sample decreases with the increase of particle size.
The effects of particle size and distribution of six commercial polyacrylic superabsorbent resins( SAP) on the critical concentration of gel formation were studied. The compositions of the samples were analyzed by infrared spectroscopy and X-ray photoelectron spectroscopy. The size and distribution of particles of dry samples were counted by using polarized light microscopy and ImageJ software,and were estimated by measuring the expansion ratio of the sample after water absorption. The critical gelation concentration of these superabsorbent resins was determined by rheological method and inverted experiment. The results show that the effect of the particle sizes of the six commercial polyacrylic superabsorbent resins on gel formation is not consistent with the corresponding theoretical prediction,which is caused by the uneven width of the particle size distribution. In the uniform range dominated by particle size distribution, the critical gelation concentration of the sample decreases with the increase of particle size.
引文
[1]ZHANG Shengzu,DU Yong,YUAN Ting,et al. Synthesis and Properties of Super Absorbents Poly(acrylic salt-acrylamide)by Inverse Suspension Polymerization[J]. J Wuhan Text Univ,2011,24(3):31-34(in Chinese).张圣祖,杜勇,袁庭,等.反相悬浮法合成聚(丙烯酸钠-丙烯酰胺)高吸水树脂及性能研究[J].武汉纺织大学学报,2011,24(3):31-34.
[2]KANG Hongmei,XIE Jianjun,LIU Yang. Study on Polymerization and Absorbency of Acrylic-Based Polymer[D]. Hunan:Xiangtan University,2002.(in Chinese)康红梅,谢建军,刘洋.聚丙烯酸系高吸水树脂研究[D].湖南:湘潭大学,2002.
[3]ZHANG Xiaolei,TIAN Qian,LI Lei,et al. Preparation of Super Absorbent Polymer via Static Aqueous Solution Polymerization[J]. Guangdong Chem Ind,2016,16(43):88-90(in Chinese).张小磊,田倩,李磊,等.静置法制备高吸水性树脂吸液性能的研究[J].广东化工,2016,16(43):88-90.
[4]ZHANG Chuanjuan,LIN Jianmin,WU Jihuai,et al. Preparation and Property of Poly(Sodium Acrylate-Acrylamide)/Agar-Modified Bentonite Superabsorbent Composite[D]. Fujian:Huaqiao University,2007(in Chinese).张传娟,林建明,吴季怀,等.琼脂改性膨润土(聚丙烯酸钠-丙烯酰胺)/高吸水复合材料的合成及性[D].福建:华侨大学,2007.
[5]WANG Fei. Study on Modification and Properties of Polyacrylic Superabsorbent Resin[D]. Guangzhou:South China University of Technology,2016(in Chinese).王飞.聚丙烯酸型高吸水树脂的改性及其性能研究[D].广州:华南理工大学,2016.
[6]CHU Jianyun,LIU Xiaodong,LIU Ruobing,et al. Synthesis and Properties of Polyacrylic Superabsorbent with Semi-IPN Structure[J]. J Sichuan Univ,2004,36(2):62-68(in Chinese).褚建云,刘晓东,刘若冰,等.半互穿网络聚丙烯酸高吸水树脂的合成及性能[J].四川大学学报,2004,36(2):62-68.
[7]CHEN Ligui. Preparation of Polyacrylic Acid(Sodium)High Water-Absorbing Resinby Solution Method and Its Influencing Factors Analysis[J]. J Anhui Agric Sci,2008,36(12):4813-4814(in Chinese).陈立贵.溶液法制备聚丙烯酸(钠)高吸水树脂及其影响因素分析[J].安徽农业科学,2008,36(12):4813-4814.
[8]WANG Dongdong. Synthesis and Modification Research of Polyacrylic Acid Sodium Absorbent Materials[D]. Jiangxi:Nanchang University,2014(in Chinese).王冬冬.聚丙烯酸钠类吸水性材料的合成及改性研究[D].江西:南昌大学,2014.
[9]WANG Manyi. Preparation of Polyacrylic Acid Superabsorbent Polymers and Electrospun Fibers[D]. Shanghai:Dnghua University,2014(in Chinese).汪满意.聚丙烯酸类高吸水树脂及电纺纤维膜的制备[D].上海:东华大学,2014.
[10]ZHANG Ming,LIU Yuelong,LIU Gousheng. Study on Synthesis and Mechanism of Poly(AA-co-AM)/Sericite Superabsorbent Composites[J]. New Chem Mater,2014,12(12):123-129(in Chinese).张明,刘跃龙,刘够生.聚(丙烯酸-丙烯酰胺)/绢云母复合高吸水树脂的制备及其机理探讨[J].化工新型材料,2014,12(12):123-129.
[11]WU Zhengang. Synthesis and Property of Super Absorbent Polymer[D]. Xi'an:The Fourth Military Medical University,2018(in Chinese).吴振刚.高吸水性树脂的合成、改性研究[D].西安:第四军医大学,2008.
[12]HE Ning. Study on Separation and Gel Properties of Natural Low Molecular Weight Gel[D]. Harbin:Harbin Institute of Technology,2018(in Chinese).何凝.天然低分子量凝胶剂的分离及凝胶性质研究[D].哈尔滨:哈尔滨工业大学,2018.
[13]Kim J M,Fang J,Eberle A P R,et al. Gel Transition in Adhesive Hard-Sphere Colloidal Dispersions:The Role of Gravitational Effects[J]. Phys Rev Lett,2013,110(20):208-302.
[14]Nishinari K. Some Thoughts on the Definition of a Gel[J]. Prog Colloid Polym Sci,2009,136:87-94.
[15]Daisuke A,Xu D H,Liu W G,et al. Protein Polymer Hydrogels by in situ,Rapid and Reversible Self-Gelation[J].Biomaterials,2012,33:5451-5458.
[16]DING Yi,FANG Youchun. Comperhensive Utilization of Anhui Industrial By-product Gypsum[J]. Mater Rev,2013,27(12):147-152(in Chinese).丁益,方有春.安徽工业副产石膏的排放及综合利用[J].材料导报,2013,27(12):147-152.
[17]ZHANG Huanhuan,WANG Jie,HUANG Gang,et al. Structure and Properties of the Polyurethane Damping Materials Used in Automobiles[J]. Acta Polym Sin,2016,10:1447-1454(in Chinese).张欢欢,王杰,黄刚,等.汽车用聚氨酯减振材料的结构与性能[J].高分子学报,2016,10:1447-1454.
[2]KANG Hongmei,XIE Jianjun,LIU Yang. Study on Polymerization and Absorbency of Acrylic-Based Polymer[D]. Hunan:Xiangtan University,2002.(in Chinese)康红梅,谢建军,刘洋.聚丙烯酸系高吸水树脂研究[D].湖南:湘潭大学,2002.
[3]ZHANG Xiaolei,TIAN Qian,LI Lei,et al. Preparation of Super Absorbent Polymer via Static Aqueous Solution Polymerization[J]. Guangdong Chem Ind,2016,16(43):88-90(in Chinese).张小磊,田倩,李磊,等.静置法制备高吸水性树脂吸液性能的研究[J].广东化工,2016,16(43):88-90.
[4]ZHANG Chuanjuan,LIN Jianmin,WU Jihuai,et al. Preparation and Property of Poly(Sodium Acrylate-Acrylamide)/Agar-Modified Bentonite Superabsorbent Composite[D]. Fujian:Huaqiao University,2007(in Chinese).张传娟,林建明,吴季怀,等.琼脂改性膨润土(聚丙烯酸钠-丙烯酰胺)/高吸水复合材料的合成及性[D].福建:华侨大学,2007.
[5]WANG Fei. Study on Modification and Properties of Polyacrylic Superabsorbent Resin[D]. Guangzhou:South China University of Technology,2016(in Chinese).王飞.聚丙烯酸型高吸水树脂的改性及其性能研究[D].广州:华南理工大学,2016.
[6]CHU Jianyun,LIU Xiaodong,LIU Ruobing,et al. Synthesis and Properties of Polyacrylic Superabsorbent with Semi-IPN Structure[J]. J Sichuan Univ,2004,36(2):62-68(in Chinese).褚建云,刘晓东,刘若冰,等.半互穿网络聚丙烯酸高吸水树脂的合成及性能[J].四川大学学报,2004,36(2):62-68.
[7]CHEN Ligui. Preparation of Polyacrylic Acid(Sodium)High Water-Absorbing Resinby Solution Method and Its Influencing Factors Analysis[J]. J Anhui Agric Sci,2008,36(12):4813-4814(in Chinese).陈立贵.溶液法制备聚丙烯酸(钠)高吸水树脂及其影响因素分析[J].安徽农业科学,2008,36(12):4813-4814.
[8]WANG Dongdong. Synthesis and Modification Research of Polyacrylic Acid Sodium Absorbent Materials[D]. Jiangxi:Nanchang University,2014(in Chinese).王冬冬.聚丙烯酸钠类吸水性材料的合成及改性研究[D].江西:南昌大学,2014.
[9]WANG Manyi. Preparation of Polyacrylic Acid Superabsorbent Polymers and Electrospun Fibers[D]. Shanghai:Dnghua University,2014(in Chinese).汪满意.聚丙烯酸类高吸水树脂及电纺纤维膜的制备[D].上海:东华大学,2014.
[10]ZHANG Ming,LIU Yuelong,LIU Gousheng. Study on Synthesis and Mechanism of Poly(AA-co-AM)/Sericite Superabsorbent Composites[J]. New Chem Mater,2014,12(12):123-129(in Chinese).张明,刘跃龙,刘够生.聚(丙烯酸-丙烯酰胺)/绢云母复合高吸水树脂的制备及其机理探讨[J].化工新型材料,2014,12(12):123-129.
[11]WU Zhengang. Synthesis and Property of Super Absorbent Polymer[D]. Xi'an:The Fourth Military Medical University,2018(in Chinese).吴振刚.高吸水性树脂的合成、改性研究[D].西安:第四军医大学,2008.
[12]HE Ning. Study on Separation and Gel Properties of Natural Low Molecular Weight Gel[D]. Harbin:Harbin Institute of Technology,2018(in Chinese).何凝.天然低分子量凝胶剂的分离及凝胶性质研究[D].哈尔滨:哈尔滨工业大学,2018.
[13]Kim J M,Fang J,Eberle A P R,et al. Gel Transition in Adhesive Hard-Sphere Colloidal Dispersions:The Role of Gravitational Effects[J]. Phys Rev Lett,2013,110(20):208-302.
[14]Nishinari K. Some Thoughts on the Definition of a Gel[J]. Prog Colloid Polym Sci,2009,136:87-94.
[15]Daisuke A,Xu D H,Liu W G,et al. Protein Polymer Hydrogels by in situ,Rapid and Reversible Self-Gelation[J].Biomaterials,2012,33:5451-5458.
[16]DING Yi,FANG Youchun. Comperhensive Utilization of Anhui Industrial By-product Gypsum[J]. Mater Rev,2013,27(12):147-152(in Chinese).丁益,方有春.安徽工业副产石膏的排放及综合利用[J].材料导报,2013,27(12):147-152.
[17]ZHANG Huanhuan,WANG Jie,HUANG Gang,et al. Structure and Properties of the Polyurethane Damping Materials Used in Automobiles[J]. Acta Polym Sin,2016,10:1447-1454(in Chinese).张欢欢,王杰,黄刚,等.汽车用聚氨酯减振材料的结构与性能[J].高分子学报,2016,10:1447-1454.