期刊
POLYMERS
卷 11, 期 3, 页码 -出版社
MDPI
DOI: 10.3390/polym11030481
关键词
PLA; rigid polyurethane-polyisocyanurate foams; recycling; mechanical properties; 3D printing waste
资金
- Ministry of Science and Higher Education of the Republic of Poland
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, H-1 NMR, C-13 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.
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