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1·The preparation and purification process of polypropylene glycol was studied.

本文研究了聚丙二醇的合成和精制方法。

2·A cathodic electrodeposition coatings was prepared employing a polypropylene glycol toughness-enhanced epoxy resin as matrix and acrylic monomers as grafted copolymer.

制备了一种以聚丙二醇增韧改性的环氧树脂为母体，接枝丙烯酸单体所形成主体树脂，经离子化反应得到阴极电泳涂料。

3·The effect of silane coupling agent KH-550 as a compatibilizer in polypropylene (PP)/phosphate ester dibromoneopentyl glycol acid (PEA) composites was studied.

考察了硅烷偶联剂KH-550在聚丙烯（PP）/酸式二溴新戊二醇磷酸二酯（PEA）复合体系中的增容作用。

4·Polyether polyurethane elastomer material was prepared based on polypropylene oxide glycol, toluene diisocyanate (TDI) and DEG as main base meterial, LDA and APP as flame retardants.

以聚氧化丙烯二醇和甲苯二异氰酸酯、一缩二乙二醇等为主要基体材原料，以联二脲（LDA）、聚磷酸铵（APP）作为阻燃剂，制作了聚醚聚氨酯弹性体。

5·This paper mainly improved the river character epoxy resin by using the polypropylene diethylene glycol dinitrate coating flexibility to spread the membrane brittleness.

摘要主要利用聚丙烯酸酯涂料的柔韧性来改善水性环氧树脂涂膜的脆性。

6·The invention discloses oil for polypropylene fibers, which is formed by mixing potassium cetanol phosphate, polyethylene glycol (800) oleate, polyoxyethylene castor oil and white oil.

本发明公开了一种丙纶油剂，由十六醇磷酸酯钾盐、聚乙二醇(800)油酸酯、聚氧乙烯蓖麻油、白油混合组成。

7·The free polyethylene glycol (PEG) in polyethylene oxide-polypropylene oxide type demulsifiers is separated by extraction, determined by gravimetric analysis and identified by gas chromotography.

本文用分配萃取法测定了AP 型原油破乳剂中的聚乙二醇。