Studies on the stability of MF resin solutions: Investigations on network formation

被引：0
|
作者：
Mijatovic, J
Binder, WH
Kubel, F
Kantner, W
机构：
[1] Vienna Univ Technol, Inst Organ Technol 162, A-1060 Vienna, Austria
[2] Vienna Univ Technol, Inst Crystallog 171, A-1060 Vienna, Austria
[3] Dynea Austria, A-3500 Krems Donau, Austria
来源：
MACROMOLECULAR SYMPOSIA | 2002年 / 181卷
关键词：
D O I：
10.1002/1521-3900(200205)181:1<373::AID-MASY373>3.0.CO;2-J
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The phenomenon of thixotropy of melamine-formaldehyde (MF) resins has been investigated. A series of MF-resins with varying F/M ratios, different condensation times and pH during the condensation has been prepared. The storage stability at room temperature was measured using viscosimetry, polarization microscopy, NMR-spectroscopy and XRD. The visible changes observed in polarization microscopy (i. e. the formation of micron sized structures) correlate with the increase of viscosity related to the formation of thixotropy. The formation of a transient network can be concluded on basis of nmr-relaxation measurements and viscosimetry.
引用
收藏
页码：373 / 382
页数：10
相关论文
共 50 条
  • [41] Stability of saponins in alcoholic solutions: Ester formation as artifacts
    Tava, A
    Mella, M
    Bialy, Z
    Jurzysta, M
    JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 2003, 51 (07) : 1797 - 1800
  • [42] Storage stability of melamine-formaldehyde resin solutions, 1 - The mechanism of instability
    Jahromi, S
    MACROMOLECULAR CHEMISTRY AND PHYSICS, 1999, 200 (10) : 2230 - 2239
  • [43] Formation and stability of muscovite in acid solutions at elevated temperatures
    Gruner, JW
    AMERICAN MINERALOGIST, 1939, 24 (10) : 624 - 628
  • [44] Effect of different solutions on color stability of acrylic resin-based dentures
    Goiato, Marcelo Coelho
    Nobrega, Adhara Smith
    dos Santos, Daniela Micheline
    Andreotti, Agda Marobo
    Moreno, Amalia
    BRAZILIAN ORAL RESEARCH, 2014, 28 (02) : 151 - 157
  • [45] Modification of novolac network formation with resin by interpenetrating poly(butyl acrylate)
    Goswami, S
    Nad, S
    Chakrabarty, D
    JOURNAL OF APPLIED POLYMER SCIENCE, 2005, 97 (06) : 2407 - 2417
  • [46] Cyanate ester resin/graphene nanocomposite: Curing dynamics and network formation
    Wang, Xiao
    Jin, Jie
    Song, Mo
    EUROPEAN POLYMER JOURNAL, 2012, 48 (06) : 1034 - 1041
  • [47] Curing behavior and network formation of cyanate ester resin/polyethylene glycol
    Ma, Junxian
    Lei, Xuefeng
    Tian, Di
    Yuan, Liangjie
    Liao, Chongshan
    JOURNAL OF APPLIED POLYMER SCIENCE, 2015, 132 (15)
  • [48] STUDIES OF FORMATION AND STABILITY OF UREA INCLUSION COMPOUNDS
    RADELL, J
    SEPARATION SCIENCE, 1968, 3 (03): : 309 - &
  • [49] Theoretical studies on heat of formation and stability for polynitroadamantanes
    Wang, F
    Xu, XJ
    Xiao, HM
    Zhang, J
    ACTA CHIMICA SINICA, 2003, 61 (12) : 1939 - 1943
  • [50] Investigations on the predictability of the formation of glassy solid solutions of drugs in sugar alcohols
    Langer, M
    Höltje, M
    Urbanetz, NA
    Brandt, B
    Höltje, HD
    Lippold, BC
    INTERNATIONAL JOURNAL OF PHARMACEUTICS, 2003, 252 (1-2) : 167 - 179
12345