增塑剂对聚氯乙烯溶胶凝胶塑化流变性能的影响
|
摘要
研究了不同增塑剂制备的聚氯乙烯(PVC)溶胶复数黏度(η)随温度或时间的流变性能变化情况,并探讨了引起流变性能差异的原因。结果表明,随温度升高或时间延长,η呈先降低,后由缓慢上升至急速上升,形成1个肩峰并达到最大值,最后又逐步减小的非正态分布趋势。各PVC溶胶在流变曲线的前3个阶段,η差异明显——第1阶段,η主要与增塑剂黏度成正比;第2、第3阶段——η主要与增塑剂的增塑效率和溶解度参数有关;第4阶段——约在160℃或30min后,各流变曲线趋于重合,η的大小无明显差异。
The changes of complex viscosity( η) of poly( vinyl) chloride( PVC) plastisols prepared with different plasticizers with the increase of temperature or time were studied,and the differences on rheological properties of these plastisols were investigated. The results show that with the increase of temperature or time,η of the PVC plastisol firstly decreases,then rapidly rises followed by a slow rise,finally,it reaches a peak value,after that it decreases gradually.The rheological curve of η shows the trend of non-normal distribution. It can be divided into four stages: in the first three stages,there is a significant difference in η——η is proportional to the viscosity of plasticizer in the first stage,and the plasticizing efficiency and the solubility parameter of plasticizers are main influencing factors in the last two stages. At the fourth stage,the rheological curves tend to coincide,and η has no obvious differences after 160 ℃ or 30 min.
The changes of complex viscosity( η) of poly( vinyl) chloride( PVC) plastisols prepared with different plasticizers with the increase of temperature or time were studied,and the differences on rheological properties of these plastisols were investigated. The results show that with the increase of temperature or time,η of the PVC plastisol firstly decreases,then rapidly rises followed by a slow rise,finally,it reaches a peak value,after that it decreases gradually.The rheological curve of η shows the trend of non-normal distribution. It can be divided into four stages: in the first three stages,there is a significant difference in η——η is proportional to the viscosity of plasticizer in the first stage,and the plasticizing efficiency and the solubility parameter of plasticizers are main influencing factors in the last two stages. At the fourth stage,the rheological curves tend to coincide,and η has no obvious differences after 160 ℃ or 30 min.
引文
[1]司业光,韩光信,吴国贞.聚氯乙烯糊树脂及其加工应用[M].北京:化学工业出版社,1993:2.
[2] Xu G M,Ji Y B,Yang Z,et al. Influence of structure and property of plasticizers on viscosity and aging process of PVC plastisols[J].Appl. Mech. Mater.,2012,161:15-20.
[3]乔辉,王国全,孙善财,等.用旋转粘度计研究PVC糊的凝胶化性能[J].绿色建筑,1990(4):8-10.Qiao H,Wang G Q,Sun S C,et al. Study on the gelation properties of PVC plastisols by rotating viscosimeter[J]. Green Building,1990(4):8-10.
[4] Zoller A,Marcilla A. Soft PVC foams:study of the gelation,fusion,and foaming processes. I. Phthalate ester plasticizers[J]. J. Appl.Polym. Sci.,2011,121:1495-1505.
[5] Zoller A,Marcilla A. Soft PVC foams:study of the gelation,fusion,and foaming processes. II. Adipate,citrate and other types of plasticizers[J]. J. Appl. Polym. Sci.,2011,122:2981-2991.
[6] Zoller A,Marcilla A. Soft PVC foams:study of the gelation,fusion and foaming processes. III. Mixed phthalate ester plasticizers[J]. J.Appl. Polym. Sci.,2011,124:2691-2701.
[7] García J C,Marcilla A. Rheological study of the influence of the plasticizer concentration in the gelation and fusion processes of PVC plastisols[J]. Polymer,1998,39:3507-3514.
[8] Beltrán M,García J C,Marcilla A. Infrared spectral changes in PVC and plasticized PVC during gelation and fusion[J]. Eur. Polym. J.,1997,33:453-462.
[9] Jourdan J S,Owen D P. Nanoscopic characterization of a plastisol gelation and fusion process utilizing scanning electron microscopy and atomic force microscopy[J]. J. Vinyl Addit. Technol.,2008,14:99-104.
[10] Verdu J,Zoller A,Marcilla A. Plastisol gelation and fusion rheological aspects[J]. J. Appl. Polym. Sci.,2013,129:2840-2847.
[11] Verdu J,Zoller A,Marcilla A. Plastisol foaming process:decomposition of the foaming agent,polymer behavior in the corresponding temperature range and resulting foam[J]. Polym. Eng.Sci.,2013,53:1712-1718.
[12] Collins E A,Hoffmann D J. Rheology of plastisols of poly(vinyl chloride)[J]. Rubber Chem. Tech.,1979,52:676-691.
[13]石万聪,司俊杰,刘文国.增塑剂实用手册[M].北京:化学工业出版社,2009:5-9.
[14]符若文,李谷,冯开才.高分子物理[M].北京:化学工业出版社. 2005:98-101.
[15]赵新明.聚氯乙烯/增塑剂性能的分子模拟研究[J].工程技术(引文版),2016(4):216-217.
[2] Xu G M,Ji Y B,Yang Z,et al. Influence of structure and property of plasticizers on viscosity and aging process of PVC plastisols[J].Appl. Mech. Mater.,2012,161:15-20.
[3]乔辉,王国全,孙善财,等.用旋转粘度计研究PVC糊的凝胶化性能[J].绿色建筑,1990(4):8-10.Qiao H,Wang G Q,Sun S C,et al. Study on the gelation properties of PVC plastisols by rotating viscosimeter[J]. Green Building,1990(4):8-10.
[4] Zoller A,Marcilla A. Soft PVC foams:study of the gelation,fusion,and foaming processes. I. Phthalate ester plasticizers[J]. J. Appl.Polym. Sci.,2011,121:1495-1505.
[5] Zoller A,Marcilla A. Soft PVC foams:study of the gelation,fusion,and foaming processes. II. Adipate,citrate and other types of plasticizers[J]. J. Appl. Polym. Sci.,2011,122:2981-2991.
[6] Zoller A,Marcilla A. Soft PVC foams:study of the gelation,fusion and foaming processes. III. Mixed phthalate ester plasticizers[J]. J.Appl. Polym. Sci.,2011,124:2691-2701.
[7] García J C,Marcilla A. Rheological study of the influence of the plasticizer concentration in the gelation and fusion processes of PVC plastisols[J]. Polymer,1998,39:3507-3514.
[8] Beltrán M,García J C,Marcilla A. Infrared spectral changes in PVC and plasticized PVC during gelation and fusion[J]. Eur. Polym. J.,1997,33:453-462.
[9] Jourdan J S,Owen D P. Nanoscopic characterization of a plastisol gelation and fusion process utilizing scanning electron microscopy and atomic force microscopy[J]. J. Vinyl Addit. Technol.,2008,14:99-104.
[10] Verdu J,Zoller A,Marcilla A. Plastisol gelation and fusion rheological aspects[J]. J. Appl. Polym. Sci.,2013,129:2840-2847.
[11] Verdu J,Zoller A,Marcilla A. Plastisol foaming process:decomposition of the foaming agent,polymer behavior in the corresponding temperature range and resulting foam[J]. Polym. Eng.Sci.,2013,53:1712-1718.
[12] Collins E A,Hoffmann D J. Rheology of plastisols of poly(vinyl chloride)[J]. Rubber Chem. Tech.,1979,52:676-691.
[13]石万聪,司俊杰,刘文国.增塑剂实用手册[M].北京:化学工业出版社,2009:5-9.
[14]符若文,李谷,冯开才.高分子物理[M].北京:化学工业出版社. 2005:98-101.
[15]赵新明.聚氯乙烯/增塑剂性能的分子模拟研究[J].工程技术(引文版),2016(4):216-217.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |