Effect of alkyl quaternary ammonium on processing discoloration of melt-intercalated PVC-montmorillonite composites
作者： Chaoying Wan , Yong Zhang , Yinxi Zhang
DOI: 10.1016/J.POLYMERTESTING.2003.08.001
关键词: Montmorillonite 、 Vinyl chloride 、 Polyvinyl chloride 、 Thermogravimetric analysis 、 Alkyl 、 Thermal stability 、 Izod impact strength test 、 Ammonium 、 Materials science 、 Composite material
摘要: Abstract The effects of alkyl quaternary ammonium on the processing thermal stability poly (vinyl chloride)/alkyl modified montmorillonite (PVC/OMMT) composites were investigated. PVC/sodium (MMT) prepared for comparison. intercalated PVC/OMMT exhibited a non-terminal rheological behavior, and showed better mechanical properties higher degradation than PVC/MMT composites. However, under identical melt conditions, observed to discolor from light yellow pink with increasing OMMT content, while PVC kept good stability. It is suggested that decomposition modifier following catalytic dehydrochlorination main reasons discoloration Discoloration all was investigated by UV–visible spectroscopy, yellowness index haze measurement. All characterized tested using wide angle X-ray diffraction, transmission electron microscopy, infrared solution 1H nuclear magnetic resonance tensile testing, notched Izod impact testing thermogravimetric analysis as well ARES rheometrics.
elsevier.com
sci-hub.se 参考文章(17)
Hans Zweifel, St. E. Amos, Plastics Additives Handbook. ,(2000)
Jerzy Wypych, Polyvinyl chloride stabilization Elsevier , Distributors for the U.S. and Canada, Elsevier Science Pub. Co.. ,(1986)
Jerry March, Advanced Organic Chemistry: Reactions, Mechanisms, and Structure ,(1977)
D. I. Bower, W. F. Maddams, The Vibrational Spectroscopy of Polymers The Vibrational Spectroscopy of Polymers. pp. 352- ,(1989) , 10.1017/CBO9780511623189
J.T Yoon, W.H Jo, M.S Lee, M.B Ko, Effects of comonomers and shear on the melt intercalation of styrenics/clay nanocomposites Polymer. ,vol. 42, pp. 329- 336 ,(2001) , 10.1016/S0032-3861(00)00333-5
D. Braun, D. Sonderhof, Assignment of UV-absorption maxima of degraded PVC Polymer Bulletin. ,vol. 14, pp. 39- 43 ,(1985) , 10.1007/BF00254913
T Kelen, Polymer degradation by elimination—I. Thermal degradation of poly(vinyl chloride) and kinetic treatment of the process European Polymer Journal. ,vol. 5, pp. 597- 616 ,(1969) , 10.1016/0014-3057(69)90124-4
Wei Xie, Zongming Gao, Wei-Ping Pan, Doug Hunter, Anant Singh, Richard Vaia, Thermal Degradation Chemistry of Alkyl Quaternary Ammonium Montmorillonite Chemistry of Materials. ,vol. 13, pp. 2979- 2990 ,(2001) , 10.1021/CM010305S
Ulrich Schwenk, Inge König, Friedrich Cavagna, Bernd Wrackmeyer, Untersuchungen zur Feinstruktur des PVC, IV. Ermittlung der Struktur von niedermolekularem PVC durch Kombination von Hydrierung, 1H- und 13C-NMR-Spektroskopie Angewandte Makromolekulare Chemie. ,vol. 83, pp. 183- 196 ,(1979) , 10.1002/APMC.1979.050830111
D.J. Suh, Y.T. Lim, O.O. Park, The property and formation mechanism of unsaturated polyester–layered silicate nanocomposite depending on the fabrication methods Polymer. ,vol. 41, pp. 8557- 8563 ,(2000) , 10.1016/S0032-3861(00)00216-0