接枝聚苯醚/聚酰胺66共混物的制备与结构性能  

Preparation,Structure and Properties of Graft Polyphenylene Oxide/Polyamide 66 Blends

作　　者：李文斐[1] 姚占海[2] 谢磊[1] 赵瑞雪[1] 李莉霞[2] 

机构地区：[1]长春理工大学化学与环境工程学院,吉林长春130022 [2]中国科学院长春应用化学研究所高分子物理与化学国家重点实验室,吉林长春130022

出　　处：《高分子材料科学与工程》2013年第11期132-135,共4页Polymer Materials Science & Engineering

基　　金：国家科技支撑计划(2012BADB01)资助;吉林省科技发展计划项目(20115005)资助;吉林省与中科院合作项目(2011CJT0013)资助

摘　　要：将聚苯醚接枝马来酸酐(PPO-g-MAH)与聚酰胺66(PA66)通过熔融挤出制备了PPO-g-MAH/PA66共混物,利用SEM、DSC、电子拉力机、旋转流变仪对共混物的结构及性能进行了研究。结果表明,共混物中PA66相的熔融温度逐渐升高,两组分熔融峰内移程度增大。发现随PPO-g-MAH的质量份增加,共混物的吸水率降低,分散相粒子更加细小、均匀。与质量比30/70的PPO/PA66共混物比,相同质量比的PPO-g-MAH/PA66的拉伸强度和冲击强度分别是其1.3倍和1.2倍。PPO-g-MAH/PA66的复合黏度和储能模量均大于PPO/PA66,PPO-g-MAH与PA66具有良好的相容性。Maleic anhydride （MAH） grafted polyphenylene oxide （PPO） （PPO-g-MAH）/PA66 blends were prepared by reactive extrusion. The structure and properties of blends were investigated by SEM, DSC, mechanical tester and rotational rheometer. DSC results indicate that the melt temperature of PA66 increases, the molten peaks of two components of PPO and PA66 move more close in PPO-g-MAH/PA66 blends when the content of PPO-g-MAH increases. It was found that water absorption of PPO-g-MAH/PA66 blends decreases with the content of PPO-g-MAH increasing. Morphologies of PPO-g-MAH/PA66 blends show that the dispersed phase becomes more fine and uniform. The tensile strength and impact strength of PPO-g-MAH/PA66 blends are 1.3 times and 1.2 times of those of PPO/PA66 blends, respectively. The complex viscosity and storage modulus of PPO-g-MAH/PA66 blends are higher than those of PPO/PA66 blends, indicating that compatibility of PPO-g-MAH and PA66 is improved.

关 键 词：接枝 共混 马来酸酐 聚苯醚 聚酰胺66 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]