Synergistic inhibition between n-butylamine and sodium nitrate for aluminum in hydrochloric acid;
正丁胺和硝酸钠对铝的缓蚀协同效应
A kind of aqueous polyurethane finishing agents were synthesized with isophorone diisocyanate(IPDI),polytetrahydrofuran(PTMG),dimethylolpropanoic acid(DMPA) as monomers and n-butylamine,ethylene glycol and ethylenediamine as chain-extension agents.
采用异佛尔酮二异氰酸酯(IPDI)、二羟甲基丙酸(DMPA)、聚四氢呋喃(PTMG)为原料制备聚氨酯预聚体,分别以乙二醇(EG)、乙二胺(EN)和正丁胺(n-butylamine)为扩链剂制备了水性聚氨酯皮革涂饰剂,研究了该涂饰剂所成膜的力学性能、断裂伸长率和吸水性。
N,N′-Disubstituted ureas,used as intermediates for synthesis of pesticides,resin precursors and carbamates,were synthesized from carbon dioxide and primary amines(namely n-propylamine,n-butylamine,n-amylamine,n-hexylamine,benzylamine and aniline) over organic base catalysts.
以正丁胺为反应基质、TBD为催化剂,合成N,N′-二丁脲的最佳反应条件为:反应温度180℃,CO2压力10。
Determination of isocyanate group in polyurethane by "di-n-Butylamine-Acetone" method;
丙酮-二正丁胺滴定法测定聚氨酯中的异氰酸酯基