china’s modified mdi industry market status and analysis of major companies in 2022
modified mdi is also called liquefied mdi. it uses pure mdi as raw material, selects an appropriate catalyst (such as cyclic phosphine oxide compound), and after heating together, mdi self-polymerizes and releases carbon dioxide, forming part of the carbodiimide group (-n =c=n-) liquid mixture. due to different modification methods, it can be mainly divided into…
