• 提高PUD性能采用氮丙啶碳化二亚胺对其进行交联改性。

    In order to improve the performances of PUD film, the PUDs were crosslinked by aziridine derivatives and polycarbodiimide, respectively.

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  • 异氰酸酯改性方法包括改性、改性、三改性、改性、碳化二亚胺改性封闭改性

    Methods for the modification of isocyanates include process of urethane, dimerization, trimerization, biuret, carbodiimide, and blocking reaction, etc.

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  • 异氰酸酯改性方法包括改性、改性、三改性、改性、碳化二亚胺改性封闭改性

    Methods for the modification of isocyanates include process of urethane, dimerization, trimerization, biuret, carbodiimide, and blocking reaction, etc.

    youdao

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