PET/聚酰胺类共混体系相容性的研究  

Study on the Compatibility of PET/Polyamide Blends

作　　者：关磊[1] 李桂娟[1] 程桂茹[1] 汪康[1] 李媛[1] 

机构地区：[1]长春工业大学化学工程学院,吉林长春130012

出　　处：《塑料工业》2011年第7期31-34,共4页China Plastics Industry

摘　　要：将聚对苯二甲酸乙二醇酯(PET)分别与聚酰胺类(PA1010、PA6和PA66)熔融共混,通过热力学分析、示差扫描量热法、扫描电镜和红外光谱等手段,对PET/PA类共混体系进行了研究。热力学分析结果与实验结果不同,表明热力学分析不适用于PET/PA共混体系;DSC分析结果表明:不同的PET/PA共混体系对PET相玻璃化温度向低温区移动程度有影响;SEM分析表明:PET/PA共混体系断面形态不同,相容性关系为PET/PA66>PET/PA6>PET/PA1010;红外光谱分析表明:共混体系中PET的羟基和PA分子的—NH—之间产生了氢键,导致PET的CO拉伸震动吸收峰移向低波数。Poly （ethylene terephthalate） （PET） and polyamide （PA66, PA6 and PA1010） were melted and blended respectively to prepare PET/PA blend system. The PET/PA blends were characterized by thermodynamic analysis, DSC, SEM and IR spectroscopy. Theoretical analysis and experimental results were different, which showed that thermodynamic analysis was not apply to the PET/PA blends. DSC analysis showed that different PET/PA blends made the Ts of PET phase moving to the lower level. SEM analysis showed that PET/PA blends had different cross-section shapes. Relationship of compatibility was： PET/ PA66 〉 PET/PA6 〉 PET/PA1010. IR spectroscopy showed that hydrogen bonds between hydroxyls of PET and --NH-- of PA caused the C=O stretching vibration absorption peaks of PET moving to lower wave number.

关 键 词：聚对苯二甲酸乙二醇酯 尼龙 共混 相容性 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]