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  1. g. oertel, polyurethane handbook, hanser publishers, 1993.
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  2. y. liu, x. zhang, et al., "enhanced hydrolytic stability of polyurethane elastomers by using novel bismuth-based catalysts", journal of applied polymer science, vol. 134, issue 24, 2017.
    £¨±¾ÎÄÖØµãÑо¿ÁËÓлúîé´ß»¯¼Á¶Ô¾Û°±õ¥ÄÍË®½âÐÔµÄÌáÉý×÷Óã©

  3. s. m. lee, j. h. kim, et al., "comparative study on the hydrolysis resistance of polyurethanes catalyzed with different metal compounds", polymer degradation and stability, vol. 96, no. 5, 2011.
    £¨±È½ÏÁ˼¸ÖÖ²»Í¬ÀàÐÍ´ß»¯¼Á¶ÔË®½âÎȶ¨ÐÔµÄÓ°Ï죩

  4. zhang wei, wang y., et al., ¡°non-tin catalysts for polyurethane synthesis: a review¡±, chinese journal of polymer science, vol. 35, no. 10, 2017.
    £¨×ÛÊöÁËÎÒ¹úÔÚ·ÇÎýÀà´ß»¯¼ÁÁìÓòµÄÑо¿½øÕ¹£©

  5. iso 1817:2022, rubber, vulcanized ¡ª determination of resistance to liquids, international organization for standardization.
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