摘要
通过FTIR红外光谱对苯基异氰酸酯与醇、水、不同含水率纤维素反应产物的研究 ,确定了产物的红外光谱吸收峰的归属。研究发现 :异氰酸酯与绝干纤维素羟基反应产物是氨基甲酸酯 ,随着纤维素含水率的增加 ,异氰酸酯与纤维素的反应越来越低 ,与水反应的比例越来越高 ;当纤维素含水率为 9 78%时 。
The paper studied the results of benzyl isocyanate with n propanol, water and cellulose with different moisture content ( MC ) by FTIR, in which the IR bands were identified. The reaction product of isocyanate and cellulose carbamate. With MC of cellulose increasing, the reaction of isocyanate and cellulose decreases while the reaction of isocyanate with water increases. When the MC of cellulose is 9 78%, most of isocyanate reacts with water absolutely and forms dibenzylurea.
出处
《林业科学》
EI
CAS
CSCD
北大核心
2004年第2期142-147,共6页
Scientia Silvae Sinicae
基金
国家自然科学基金资助项目"异氰酸酯与木质基材料胶接机理研究 ( 3 0 170 75 3 )
