查询词典 diglycol

Diglycol diacetate had been obtained with sulfuric acid or toluene-p-sulfonic acid as catalyst in lab.

研究了在实验室条件下，以硫酸、对甲苯磺酸为催化剂合成二甘醇二醋酸酯的方法。

As important industrial chemicals, dihydroxy alcohols are applied for many fields, classical dihydroxy alcohols include l,4BD0, diglycol, NPG, 1,3PDO, HDO and so on. MPO is a kind of new dihydroxy alcohols. Because of its unique molecular structure, 2-methyl-1,3-propanediol is instead of classical dihydroxy alcohols gradually. So MPO has huge market foreground.

二元醇类作为医药、涂料工业的重要中间体应用非常广泛，传统的二元醇有1，4-丁二醇(1，4BDO)、二甘醇、新戊二醇、1，3-丙二醇(1，3PDO)、己二醇等。2-甲基-1，3-丙二醇是一种新型二元醇，由于其独特的分子结构使其在很多方面正逐渐取代传统二元醇，有很大的市场前景，但国内尚无完整地生产工艺。

Flame—retardant resin was prepared by the condensation and polymerization of phosphoric acid, trihydroxy methyl propane and epoxy chloropropane,the resin was then reacted with hexane diacid and diglycol under certain condition ,resulting in polyol containing 1.5% P and 17— 18% polyester polyol, which was foamed with polyisocyanate, water and catalyst by one— step method, producing fire...

通过磷酸、三羟甲基丙烷和环氧氯丙烷的缩合和聚合反应制得阻燃树脂，然后将它与己二酸、一缩二乙二醇在一定条件下反应制得含P1.5%和含Cl17～18%的聚酯多元醇，再将它与多异氰酸酯、水、催化剂等组分采用一步法发泡工艺制得阻燃聚氨酯软泡塑料。

Flame— retardant resin was prepared by the condensation and polymerization of phosphoric acid, trihydroxy methyl propane and epoxy chloropropane,the resin was then reacted with hexane diacid and diglycol under certain condition ,resulting in polyol containing 1.5% P and 17— 18% polyester polyol, which was foamed with polyisocyanate, water and catalyst by one— step method, producing fire—resistant PU soft foam.

通过磷酸、三羟甲基丙烷和环氧氯丙烷的缩合和聚合反应制得阻燃树脂，然后将它与己二酸、一缩二乙二醇在一定条件下反应制得含P1.5%和含Cl17～18%的聚酯多元醇，再将它与多异氰酸酯、水、催化剂等组分采用一步法发泡工艺制得阻燃聚氨酯软泡塑料。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。