丙炔醇与环己胺在四氯乙烯中的协同稳定作用研究

1　前言四氯乙烯 (Perchloroethylene,简称 PCE)具有高溶解能力、高渗透性、不燃、非腐蚀、易于回收等优良性能 ,广泛地用作织物干洗剂、金属脱脂剂及一般溶剂 1] 。纯度高的 PCE对于光、空气、热、湿气或金属表面等的作用是稳定的。但是 ,一般以工业规模生产的 PCE,在贮藏或作用中 ,易受光、空气、热、湿气或金属表面等影响而分解 ,生成盐酸、光气、三氯乙酸等酸性物质或焦油状物质 2 ] 。这些分解生成物 ,在干洗中污染损伤纤维、腐蚀设备 ,在金属脱脂洗涤中腐蚀洗涤装置和金属制品。为了防止 PCE的分解 ,各种稳定剂诸如环氧化合物…

STUDY ON THE SYNERGISTIC STABILIZATION BETWEEN PROPARGYL ALCOHOL AND CYCLOHEXYLAMINO IN THE SOLVENT OF PERCHLOROETHYLENE

This paper studies that the synergistic effects between the compositions in cert ain kind of stabilizing agent for perchloroethylene by the perpendicular experim ents.T he result shows there is an obvious synergistic effect between propargyl alcohol and cyclohexylamino.Finally,this paper investigates the synergistic stable mech a nism according to the chemical structures of propargyl alcohol and cyclohexylamino.