Thermal behaviour of urea-formaldehyde resins during curing

被引：115

作者：

Siimer, K ^{[1
]}

Kaljuvee, T ^{[1
]}

Christjanson, P ^{[1
]}

机构：

[1] Tallinn Univ Technol, EE-19086 Tallinn, Estonia

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2003年 / 72卷 / 02期

关键词：

curing; polycondensation; storage; TG-DTA technique; urea-formaldehyde resins;

D O I：

10.1023/A:1024590019244

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Urea-formaldehyde (UF) resins are the most widely used polycondensation resins today in manufacturing particleboards. The performance of UF resins in their processing is greatly influenced by curing characteristics. The cure process has been monitored by TG-DTA technique on a Setaram labsys(TM) instrument in dynamic heating conditions at different heating rates. Commercial UF resins from different suppliers used in Estonian particleboard factories were selected for TG-DTA measurements. Experiments were carried out without and with catalysts. Ammonium chloride and ammonium sulphate were used. Curing characteristics were evaluated both for fresh and aged resins.

引用

页码：607 / 617

页数：11

共 15 条

[1] CATALYTIC, EXOTHERMIC REACTIONS OF UREA-FORMALDEHYDE RESIN [J].