Effect of F/P and OH/P molar ratios and condensation viscosity on the structure of phenol-formaldehyde resol resins for overlays - A statistical study

被引：10
作者：
Holopainen, T
Alvila, L
Savolainen, P
Pakkanen, TT
机构：
[1] Univ Joensuu, Dept Chem, FIN-80101 Joensuu, Finland
[2] Dynea Overlays, Welcome, NC 27374 USA
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 2004年 / 91卷 / 05期
关键词：
resins; C-13-NMR; differential scanning calorimetry (DSC) gel permeation chromatography (GPC); experimental design; phenol formaldehyde (PF) resins; paper overlays;
D O I：
10.1002/app.13511
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A two-level full factorial experimental design with three variables, formaldehyde-to-phenol (F/P) molar ratio, hydroxyl-to-phenol (OH/P) molar ratio, and condensation viscosity was implemented to determine the effect of the variables on the structure of phenol-formaldehyde resol resins for paper overlay impregnation. Ten resins were prepared with F/P molar ratios between 1.9 and 2.3, OH/P molar ratios between 0.09 and 0.13, and condensation viscosities between 60 and 180 mPa s. The effect of these three independent variables on the chemical structure was analyzed by C-13-NMR spectroscopy, on the molecular weight distribution by gel permeation chromatography, and on the reactivity by differential scanning calorimetry. (C) 2004 Wiley Periodicals, Inc.
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收藏
页码：2942 / 2948
页数：7
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