• 研究发现,建立的方程可预测二元和三元醇胺混合物的密度。

    The results show that the densities of binary and ternary alcohol-amine mixtures are satisfactorily predicted.

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  • 将涤纶废产物用二甘醇和三元醇经酯基转移合成齐聚酯多元醇,并用其制备聚氨酯硬质泡沫塑料。

    A study was conducted to synthesize oligoester alcohols from poly (ethylene terephthalate) production wastes via transesterification with diethylene glycol and tribasic alcohol.

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  • 研究了以KOH为催化剂,二元或三元醇为起始剂,采用阴离子开环聚合合成淬火剂用共聚醚。 结果表明:产物的分子量随起始剂和杂质量的减少而增加;

    The synthesis of oxyethylene oxypropylene copolyethers used for quenchant was studied by using anionic ring opening polymerization, diol or triol as the starting agent and KOH as the catalyst.

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  • 由聚对苯二甲酸丁二醇酯(PBT), 聚碳酸酯(PC)和热塑性弹性体( TPE) 组成的三元塑料合金是PBT基塑料合金的新一代。

    This paper describes a new generation of PBT based polymer alloy which is composed of PBT, PC TPE.

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  • 由聚对苯二甲酸丁二醇酯(PBT), 聚碳酸酯(PC)和热塑性弹性体( TPE) 组成的三元塑料合金是PBT基塑料合金的新一代。

    This paper describes a new generation of PBT based polymer alloy which is composed of PBT, PC TPE.

    youdao

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