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4. ¶¾ÐÔÓë»·±£ÌØÐÔ£¨toxicity and environmental impact£©

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5. Ó벻ͬ¾Û°±õ¥ÌåϵµÄ¼æÈÝÐÔ£¨compatibility with different polyurethane systems£©

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6. ÍÆ¼öÓÃÁ¿£¨recommended dosage£©

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7. ¼Û¸ñÇø¼ä£¨price range£©

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  1. "recent advances in catalysts for polyurethane foams"£¨×÷Õߣºj. smith et al., journal of applied polymer science, 2019£©

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  2. "performance evaluation of novel bismuth-based catalysts in rigid polyurethane foams"£¨×÷Õߣºm. johnson et al., polymer engineering & science, 2020£©

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  3. "green catalysts for polyurethane synthesis: a review"£¨×÷Õߣºa. gupta et al., green chemistry, 2021£©

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  4. "effect of catalyst selection on the physical properties of flexible polyurethane foams"£¨×÷Õߣºl. chen et al., foamtech international, 2022£©

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