The possibility of using coconut fatty acid diethanolamide, a derivate from coconut oil as a bio-based polyol for the synthesis of polyurethane foam was explored. The intrinsic tertiary amine moiety in this polyol (p-CFAD) endowed an auto-catalytic effect in the synthesis process of polyurethane foams, combined with a shorter cream and gelation time compared to the fossil-based polyol 3152. H-nuclear magnetic resonance (1H-NMR) and Fourier transform infrared spectrometry (FTIR) were conducted to characterize the chemical structural features of the p-CFAD, and rheology measurement showed the shear-thinning behavior due to the branched structure. A thermal conductivity comparable to the commercial rigid polyurethane foam was achieved when 40wt% fossil-based polyol 3152 was substituted with the bio-based p-CFAD. With the increased content of the p-CFAD, a transition of the physical properties from rigid PU foam to soft PU foam was observed. Scanning electron microscopy (SEM) revealed the occurrence of the interconnected pores on the cell walls with the increase of the added p-CFAD, implying the possibility of regulating the cellular structure and foam properties via the incorporation of the p-CFAD. Results showed the feasibility of using p-CFAD as a potential polyol in the development of bio-based polyurethane foams with high performance.

中文翻译：

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椰子脂肪酸二乙醇酰胺基聚氨酯泡沫的研究。

探索了使用椰子脂肪酸二乙醇酰胺（一种来自椰子油的衍生物）作为生物基多元醇用于合成聚氨酯泡沫的可能性。与化石基多元醇 3152 相比，这种多元醇 (p-CFAD) 中固有的叔胺部分赋予聚氨酯泡沫合成过程中的自催化效应，并具有更短的乳霜和凝胶时间。 H-核磁共振 ( 1H-NMR) 和傅里叶变换红外光谱 (FTIR) 对 p-CFAD 的化学结构特征进行了表征，流变学测量显示了由于支化结构导致的剪切变稀行为。当用生物基 p-CFAD 代替 40wt% 的化石基多元醇 3152 时，可实现与商业硬质聚氨酯泡沫相当的热导率。随着 p-CFAD 含量的增加，观察到物理性能从硬质 PU 泡沫转变为软质 PU 泡沫。扫描电子显微镜 (SEM) 显示随着 p-CFAD 添加量的增加，泡孔壁上出现相互连接的孔，这意味着通过掺入 p-CFAD 来调节泡孔结构和泡沫性能的可能性。结果表明，将 p-CFAD 作为一种潜在的多元醇用于开发高性能的生物基聚氨酯泡沫是可行的。这意味着通过掺入 p-CFAD 来调节蜂窝结构和泡沫特性的可能性。结果表明，将 p-CFAD 作为一种潜在的多元醇用于开发高性能的生物基聚氨酯泡沫是可行的。这意味着通过掺入 p-CFAD 来调节蜂窝结构和泡沫特性的可能性。结果表明，将 p-CFAD 作为一种潜在的多元醇用于开发高性能的生物基聚氨酯泡沫是可行的。