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甲基丙烯酸缩乙二醇双酯,作为一种双官能基单体,是配制厌氧胶的主要组分,本文研究了室温和70±2℃下甲基丙烯酸二缩三乙二醇双酯(双酯)的氧化,以及DMT、CHPO、糖精、对苯二酚、草酸、铜离子等对双酯氧化的影响,发现DMT、铜离子明显加速双酯氧化,而对苯二酚、草酸抑制双酮氧化,与DMT共存时,糖精对氧化亦起加速作用。 此外,本文研究了厌氧胶与吸氧的关系,发现厌氧胶是一个不断吸氧的体系,厌氧胶中各组分对双酯吸氧与稳定性的影响与它们对双酯氧化的影响基本上是平行的,即DMT与铜离子促进双酯吸氧并降低稳定性,草酸抑制吸氧并增加稳定性,CHPO和糖精对双酯吸氧和稳定性影响比较小,但有DMT存在时,糖精则明显起加速作用。
As a bifunctional monomer, ethylene glycol dimethacrylate (DDPA) is the main component of anaerobic adhesives. In this paper, the effects of triethylene glycol dimethacrylate (DMT, CHPO, saccharin, hydroquinone, oxalic acid and copper ions) on the oxidation of diester. It was found that DMT and copper ions accelerated the oxidation of diester remarkably, while hydroquinone and oxalic acid inhibited the oxidation of diester. Diacetone oxidation, coexisting with DMT, saccharin also accelerated the role of oxidation. In addition, this paper studies the relationship between anaerobic adhesive and oxygen and found that anaerobic adhesive is a system of continuous oxygen absorption, the anaerobic adhesive components of the double ester oxygen and the stability of their role in diester oxidation The effect is basically parallel, that DMT and copper ions promote the double ester oxygen and reduce stability, oxalic acid inhibition of oxygen and increase stability, CHPO and saccharin on the double ester oxygen absorption and stability was relatively small, but the presence of DMT When, saccharin significantly accelerated role.