Abstract

The utilization of carbon dioxide (CO₂) as a sustainable feedstock for chemical products is becoming more interesting topic as the public issue of global warming has been increasingly emphasized. In this study, CO₂ was polymerized in the presence of propylene oxide by using a double metal cyanide catalyst, affording poly(ether carbonate) (PEC) polyol. Rigid polyurethane foams (RPUFs) were successfully prepared with a bi-polyol mixture of different compositions containing the CO₂-based PEC polyol. Approximately 43 wt% of petroleum-based polyether polyol was successfully substituted by the CO₂-based PEC polyol, affording RPUFs with controlled characteristics. The properties of the RPUFs, such as apparent density, compressive strength, thermal conductivity, thermal stability and cell morphology, supported the potential of the RPUFs as thermal insulating materials and CO₂ as an eco-friendly sustainable resource.

中文翻译：

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硬质聚氨酯泡沫双多元醇混合物中的二氧化碳基聚醚碳酸酯多元醇

摘要

随着人们日益强调全球变暖这一公共问题，将二氧化碳（CO ₂）用作化学产品的可持续原料正变得越来越有趣。在这项研究中，通过使用双金属氰化物催化剂在环氧丙烷存在下使CO ₂聚合，得到聚（醚碳酸酯）（PEC）多元醇。用含有基于CO ₂的PEC多元醇的不同组成的双多元醇混合物成功制备了硬质聚氨酯泡沫（RPUF）。约43 wt％的石油基聚醚多元醇已成功被CO ₂取代的PEC多元醇，可提供具有受控特性的RPUF。RPUFs的特性，如表观密度，抗压强度，导热性，热稳定性和细胞形态，支持了RPUFs作为隔热材料和CO ₂作为生态友好型可持续资源的潜力。