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- As a solution,toluene and isopropanol are replaced by acetone to determine isocyanate group in polyurethane. 采用丙酮代替甲苯和异丙醇作溶剂,采用二正丁胺滴定法测定聚氨酯中的异氰酸酯基。
- The results show that by optimization of the functionalization conditions, the products grafted by isocyanate group (NCO) with content of TAI up to 6wt% can be... 接枝产物与金属铝的粘结性明显提高.
- As the isocyan group is polymerized further, diphenyl carbondiimine may be formed, further polymerization of which forms a nitrogen-containing polycyclic aromatic compound. 异氰基化合物进一步二聚成二苯基碳化二亚胺，后者又聚合生成含氮杂环的多环芳烃。
- Content of isocyanate group in waterborne polyurethane prepolymer is tested with acetone as solvent, n-dibutylamine - toluene solution as reaction liquid and ethyl acetate as thinner. 对水性聚氨酯预聚体中异氰酸酯基团的容量测定进行了研究。
- The isocyanate group can react with reactive H of IFR.By interface grafting method , the microencapsulated IFR were formed.SEM showed that compatibility of IFR with matrix, and water ... 其异氰酸酯基能与IFR中的活泼氢发生重键加成反应;通过表面接枝的方法;将IFR微胶囊化;SEM证明了该技术增强了阻燃剂与底材的相容性;提高防火涂料的耐水性.
- Content Test of Isocyanate Group in Waterborne Polyurethane Prepolymer 水性聚氨酯预聚体中异氰酸酯基团的容量测定
- Testing method or isocyanate group content in urethane materials or prepolymer 氨基甲酸乙酯材料或预聚物中异氰酸酯基团的试验方法
- Education should not be restricted to any one specific age group. 教育不应限制在任何特定的年龄组上。
- He broke away from that lawless group years ago. 他在几年前脱离了那个非法团体。
- The group of barbaric soldiers killed many people. 那群野蛮的士兵杀了很多人。
- The group was made up of doctors. 这个团体是由医生组成的。
- A group of boys dashed out of the classroom. 一群男孩子从教室里冲出来。
- I come upon a group of children play in the street. 我遇到一群孩子在街上玩耍。
- He goes about with a group of nice boys. 他经常和一群好孩子在一起玩。
- He is a the most brisk young man in this group. 他是这个小组中最活跃的年轻人。
- He showed me a photo of a family group. 他给我看一张合家欢的照片。
- The chief accountant of a manufacturing group. 一个制造业集团的总会计师。
- The hunting group had good sport today. 今天打猎小组满载而归。
- I stand out in a group interview. 在集体面试中脱颖而出。
- He looked around the small group of mourners. 他环顾一下那一小群的送葬者。
