Paciorek-Sadowska Joanna, Borowicz Marcin, Isbrandt Marek
Department of Chemistry and Technology of Polyurethanes, Technical Institute, Faculty of Mathematics, Physics and Technical Science, Kazimierz Wielki University, J. K. Chodkiewicza Street 30, 85-064 Bydgoszcz, Poland.
Polymers (Basel). 2019 Mar 12;11(3):481. doi: 10.3390/polym11030481.
The article presents the results of research on the synthesis of a new eco-polyol based on polylactide (PLA) waste and its use for the production of rigid polyurethane-polyisocyanurate (RPU/PIR) foams. The obtained recycling-based polyol was subjected to analytical, physicochemical and spectroscopic tests (FTIR, ¹H NMR, C NMR) to confirm its suitability for the synthesis of polyurethane materials. Then, it was used to partially replace petrochemical polyol in polyurethane formulation. The obtained RPU/PIR foams were characterized by lower apparent density, brittleness, and water absorption. In addition, foams modified by eco-polyol had higher flame retardancy, as compared to reference foam. The results of the research show that the use of PLA polyol based on plastic waste may be an alternative to petrochemical polyols. This research matches with the current trends of sustainable development and green chemistry.
本文介绍了基于聚乳酸（PLA）废料合成新型生态多元醇及其用于生产硬质聚氨酯-聚异氰脲酸酯（RPU/PIR）泡沫的研究结果。对所得的基于回收利用的多元醇进行了分析、物理化学和光谱测试（傅里叶变换红外光谱、¹H核磁共振、¹³C核磁共振），以确认其适用于聚氨酯材料的合成。然后，将其用于部分替代聚氨酯配方中的石化多元醇。所得的RPU/PIR泡沫具有较低的表观密度、脆性和吸水性。此外，与参比泡沫相比，经生态多元醇改性的泡沫具有更高的阻燃性。研究结果表明，使用基于塑料废料的聚乳酸多元醇可能是石化多元醇的一种替代品。这项研究符合可持续发展和绿色化学的当前趋势。
