摘要
本文介绍了利用醋酸酐室温酰化法测定聚酯多元醇中的羟值含量。讨论了水含量、称样量、酰化温度的控制、滴加速度等对测定结果的影响。严格按照实验条件做,此法是一种既简便又快速的测定方法。
The determination of hydroxyl value of polyester polyol by acylation of acetic anhydride at room temperature was introduced.The effect factors of water content,sample weight,acylation temperature control,dropping speed to the results were discussed.The method is simple and fast strict to the conditions.
出处
《化学工程师》
CAS
2011年第3期19-20,共2页
Chemical Engineer
关键词
醋酸酐
室温
酰化法
测定
聚酯多元醇
羟值
acetic anhydride
room temperature
acylation method
determination
polyester polyol
hydroxyl value
