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首页> 外文期刊>Journal of Applied Polymer Science >Production of Polyols and Waterborne Polyurethane Dispersions from Biodiesel-Derived Crude Glycerol
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Production of Polyols and Waterborne Polyurethane Dispersions from Biodiesel-Derived Crude Glycerol

机译：由生物柴油衍生的粗甘油生产多元醇和水性聚氨酯分散体

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摘要

This study investigated the preparation of polyols and waterborne polyurethane dispersions (CG-WPUDs) from biodiesel-derived crude glycerol. The polyols were produced from biodiesel-derived crude glycerol via a thermochemical conversion process, which converted crude glycerol components such as glycerol, free fatty acids, and methyl esters of fatty acids (FAMEs) into polyols under optimized reaction conditions. CG-WPUDs with different hard segments (41.0% to 63.2 wt %) were prepared from the crude glycerol-based polyols produced. PU coating films cast from CG-WPUDs showed increasing glass transition temperatures (T-g) from 63 degrees C to 81 degrees C when hard segment content increased from 41.0% to 63.2% and had good thermal stability up to 240 degrees C. CG-WPUD-based coatings showed excellent adhesion to steel panel surfaces, pencil hardness as high as F, but relatively low flexibility. This study demonstrated the potential of biodiesel-derived crude glycerol for the production of bio-based polyols and WPUDs. (C) 2014 Wiley Periodicals, Inc.
机译：这项研究调查了从生物柴油衍生的粗甘油制备多元醇和水性聚氨酯分散体（CG-WPUD）的过程。多元醇由生物柴油衍生的粗甘油经热化学转化工艺制得，该工艺在优化的反应条件下将粗甘油组分（如甘油），游离脂肪酸和脂肪酸甲酯（FAME）转化为多元醇。从生产的粗制甘油基多元醇制备具有不同硬链段（41.0％至63.2 wt％）的CG-WPUD。当硬链段含量从41.0％增加到63.2％时，由CG-WPUDs浇铸的PU涂膜显示出玻璃转变温度（Tg）从63摄氏度增加到81摄氏度，并具有良好的热稳定性，直至240摄氏度。基涂料对钢板表面显示出优异的附着力，铅笔硬度高达F，但柔韧性较低。这项研究证明了生物柴油衍生的粗甘油在生产生物基多元醇和WPUDs中的潜力。 （C）2014威利期刊公司

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