尼龙6微孔发泡材料的制备及泡孔形貌调控  

The Preparation of Microcellular Nylon 6 and Bubble Pore Morphology Control

作　　者：杨子程 龚莉雯 张利[1] 包锦标 YANG Zi-Cheng;GONG Li-Wen;ZHANG Li;BAO Jin-Biao(Faculty of Material Science and Chemical Engineering Ningbo University,Ningbo 315211,China)

机构地区：[1]宁波大学材料科学与化学工程学院,宁波315211

出　　处：《高分子通报》2022年第3期63-69,共7页Polymer Bulletin

摘　　要：本文利用共混改性方法得到高熔体强度尼龙6基体,通过探索不同的工艺条件,获得不同倍率的尼龙6发泡材料,系统研究不同离聚体改性剂比例下对其熔体强度的影响。通过热性能测试和流变测试推测了其中微交联结构的存在。通过调节发泡工艺制备不同发泡倍率的尼龙6发泡材料,用扫描电镜(SEM)观测泡孔形貌。结果表明,离聚体的加入大大提升尼龙6基体的熔体强度,实现了尼龙6超临界二氧化碳发泡的可能性,并获得了较大倍率的尼龙发泡材料。In this paper, a blending modification method is used to obtain a nylon 6 matrix with high melt strength. Through exploring different process conditions, nylon 6 foam materials with different magnifications are obtained, and the melt strength of different ionomer modifier ratios is systematically studied. Influence. The existence of micro-crosslinked structure is inferred through thermal performance test and rheological test. Nylon 6 foam materials with different foaming ratios were prepared by adjusting the foaming process, and the cell morphology was observed with a scanning electron microscope(SEM). The results show that the addition of ionomer greatly improves the melt strength of the nylon 6 matrix, realizes the possibility of nylon 6 supercritical carbon dioxide foaming, and obtains a nylon foam material with a larger magnification.

关 键 词：聚酰胺6 超临界二氧化碳 熔体强度 发泡倍率 

分 类 号：TQ328[化学工程—合成树脂塑料工业]