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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
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focusing on the technology innovation and quality improvement to establish the first-class PU curatives brand.
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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.
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One of the earliest companies produce MOCA that complies with REACH in China
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Xiangyuan can provide a great career development platform for employees with the globalization and development.
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Home »Products »/uploads/20210112/f28f8ccab39a8f9c4ff2460fcaf4c963.jpg
2021-10-14 1869
潛固化劑的固化機理和傳統的濕固化機理不同,添加潛固化劑的濕固化聚氨酯體系,水分優先與體系中的潛固化劑反應并生成含活潑氫的基團(而不是與異氰酸酯基反應),活潑氫再與異氰酸酯基反應固化,整個過程不產生二氧化碳氣體,因此可避免諸如表面模糊(低光澤)、針孔及起泡等表面缺陷。
醛(酮)亞胺與水反應得到二胺和醛(或酮)。噁唑烷與水反應得到β-醇胺和酮(或醛)。
反應式如下:
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