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首页> 外文期刊>Journal of Applied Polymer Science >Structures and physical properties of rigid polyurethane foam prepared with rosin-based polyol
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Structures and physical properties of rigid polyurethane foam prepared with rosin-based polyol

机译：用松香基多元醇制备的硬质聚氨酯泡沫的结构和物理性能

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Rosin-based polyester polyols were synthesized from a rosin-maleic anhydride adduct, diethylene glycol, and ethylene glycol with and without adding adipic acid and phthelic anhydride, in the presence of catalyst. Rigid polyurethane (PU) foams were prepared with these rosin-based polyols and compared with foam made with an industrial polyester Daltolac(TM) P744. The experimental results show that the foaming behavior for the foams prepared from such rosin-based polyols is similar to that of industrial products, but their 10% compression strength, both parallel and vertical to foaming rise direction, is higher and the dimensional stability at 100 and -30degreesC is similar or somewhat better than that of a comparable system. Furthermore, the rosin-modified PU foams exhibit even lower thermal conductivity and much higher activation energies during the pyrolysis process. All these unique physical properties of the rosin-modified rigid PU foams were correlated to the structures of these PU foams. (C) 2002 John Wiley Sons, Inc. [References: 10]
机译：在催化剂的存在下，在添加和不添加己二酸和邻苯二甲酸酐的情况下，由松香-马来酸酐加合物，二甘醇和乙二醇合成松香基聚酯多元醇。用这些松香基多元醇制备了硬质聚氨酯（PU）泡沫，并将其与用工业聚酯Daltolac TM P744制成的泡沫进行了比较。实验结果表明，由此类松香基多元醇制得的泡沫的发泡行为与工业产品相似，但与泡沫上升方向平行和垂直的10％压缩强度更高，尺寸稳定性为100 -30℃的温度与同类系统相似或更好。此外，松香改性的PU泡沫在热解过程中表现出更低的导热率和更高的活化能。松香改性的硬质PU泡沫的所有这些独特的物理性质与这些PU泡沫的结构相关。 （C）2002 John Wiley Sons，Inc. [参考：10]

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