层析聚酰胺树脂的微观形态和结晶性能研究  

Study on the morphology and crystallization behavior of column chromatography polyamide

作　　者：吴唯[1] 邬智勇[2] Manfred H. Wagner 

机构地区：[1]华东理工大学材料科学与工程学院,上海200237 [2]中国石化集团公司巴陵石油化工有限责任公司,岳阳414014 [3]德国柏林工业大学高分子材料研究所,柏林10623

出　　处：《化工新型材料》2009年第6期100-103,共4页New Chemical Materials

摘　　要：采用表面反射光学显微镜、热台偏光显微镜、DSC分析等手段，表征、分析和研究了两种巴陵石化生产的层析分离用聚酰胺树脂PA-1（30-60目）和PA-2（60-80目）的微观形态结构以及熔融和结晶性能，并与市售普通层析聚酰胺树脂PA-3（60-80目）和两种工程塑料级PA6的基本性能作了比较。结果表明，层析聚酰胺树脂是一种微细颗粒状多孔材料，与工程塑料级聚酰胺树脂一样，它仍然是一种结晶性聚合物，熔点在208℃附近。与市售层析聚酰胺树脂相比，巴陵石化生产的层析聚酰胺树脂颗粒的形状规整，粒度均匀，纯净度高，多孔结构丰富，层析分离效果好。与工程塑料级PA6相比，层析聚酰胺树脂的结晶速度慢，结晶过程中的结晶焓小。巴陵石化生产的层析聚酰胺树脂具有部分形成松散的结晶结构的能力，有利于增加微孔结构，提高其吸附和分离功能。Morphology behavior and crystallization and melting behavior of two column chromatography polyamides （PA-1 and PA-2, were supplied by Baling Petrochemical Company of SINOPEC） were studied and characterized by surface reflection optical microscopy, polarized optical microscopy （POM）, differential scanning calorimeter （DSC） and other measurements. The results were further compared with commercial polyamide chromatography （PA-3） and other two polyamide 6 （PA6）. This work indicated that the column chromatography polyamide is a kind of micro granular porous, crystalline polymers with melting point at approximately 208℃. Porous column chromatography polyamides PA-1 and PA-2 （supplied by Baling Petrochemical Company of SINOPEC） hold high regularity, uniform granularity and purity, higher efficiency in separation than other commercial column chromatography polyamides; and lower crystalline rate and enthalpy compared to polyamide 6. The column chromatography polyamide produced by Baling Petrochemical Company Sinopec was able to crystallize loosely, which was beneficial for forming microporous structures, enhancing adsorption and separation forces.

关 键 词：聚酰胺树脂 层析 分离 微观形态 结晶 

分 类 号：TQ323.7[化学工程—合成树脂塑料工业]