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Crosslinking Kinetics of the Formation of Lignin Aminated Polyol Based Polyurethane Foam

文献类型: 会议论文

第一作者: Shu-ping HUO

作者: Shu-ping HUO 1 ; Ming-cai NIE 1 ; Zhen-wu KONG 1 ; Guo-min WU 2 ; Jian CHEN;

作者机构: 1.Institute of Chemical Industry of Forest Products, CAF National Engineering Lab. for Biomass Chemical Utilization Key and Open Lab. on Forest Chemical Engineering, SFA Key Lab. of Biomass Energy and Material, Nanjing 210042, China

2.Institute of Chemical Industry of Forest Products, CAF National Engineering Lab. for Biomass Chemical Utili

关键词: kinetics;FT-IR;polyurethane foam;lignin aminated polyol

会议名称: International Conference on Chemical and Biological Utilization of Biomass Resources

主办单位:

页码: 318-323

摘要: Fourier transform infrared (FT-IR) spectroscopic analysis was used to study the kinetics of the formation of the polyurethane foam by lignin aminated polyol crosslinked with diphenylmethane diisocyanate (MDI-50). The crosslinking reaction was followed by monitoring of the change of the absorbance of the -NCO group at 2270 cm-1 in FT-IR spectra. The apparent activation energy (Ea) calculated according to n-th order reaction model was 16.44 kJ/mol, and the frequency factors (A') was 2.69 min-1. Furthermore, the crosslinking reaction is approximated to be a first-order reaction.

分类号: Q5`Q5

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