Chemical quantitative tracking analysis method for synthesis process of macromolecular organic amine epoxy hardener

• Main Authors: ZHAO SHIHAO, JIAO WENZHE, ZHAO WENSEN, ZHAO HUITING, LI JIN, WU ZHIPENG, LIANG LINGJIE, WANG BAOCHAO
• Format: Patent
• Language: Chinese; English
• Published: 14.06.2024
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a chemical quantitative tracking analysis method for a synthesis process of a macromolecular organic amine epoxy curing agent, and belongs to the technical field of production and analysis of epoxy organic amine curing agents. The method adopts hydrogen bromide-glacial acetic acid titration to analyze the total content of epoxy value and amine value in the synthesis process, and adopts a hydrochloric acid-ethanol titration method to determine the content of amine value in the reaction process. Then, the difference value between the sum of the epoxy value and the amine value measured by hydrobromic acid-glacial acetic acid and the amine value measured by a hydrochloric acid-ethanol titration method is used for tracking the reaction degree, and when the difference value approaches to 0, the reaction for preparing the macromolecular organic amine epoxy curing agent is finished. The quantitative analysis method is easy to operate, convenient to analyze, high in applicability and high in ac