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one of the top companies in world that integrating R&D, production and selling of PU curatives with advanced green technology

focusing on the technology innovation and quality improvement to establish the first-class PU curatives brand.

has 4 types of curatives including diamines, aromatic glycols, alcohol amines, latent curing agents which has a wide use in PU coatings, adhesives, pavement, elastomers and so on.

One of the earliest companies produce MOCA that complies with REACH in China

Xiangyuan can provide a great career development platform for employees with the globalization and development.

We would like to share more information with you about PU market, governmental policy, technical support and the prospect of PU development
2021-10-14 2959
潜固化剂的固化机理和传统的湿固化机理不同,添加潜固化剂的湿固化聚氨酯体系,水分优先与体系中的潜固化剂反应并生成含活泼氢的基团(而不是与异氰酸酯基反应),活泼氢再与异氰酸酯基反应固化,整个过程不产生二氧化碳气体,因此可避免诸如表面模糊(低光泽)、针孔及起泡等表面缺陷。
醛(酮)亚胺与水反应得到二胺和醛(或酮)。噁唑烷与水反应得到β-醇胺和酮(或醛)。
反应式如下:
