摘要
研究了马来酸酐接枝聚苯醚(PPO-g-MAH)作为相容剂对聚苯醚/尼龙66(PPO/PA66)合金及30%玻璃纤维增强PPO/PA66合金(PPO/PA66/GF)体系性能的影响。通过傅里叶红外光谱(FTIR)、扫描电子显微镜(SEM)、差示扫描量热仪(DSC)及常规力学性能测试对PPO-g-MAH和PPO-g-MAH添加量对合金体系的微观形貌、熔融结晶行为及常规物性进行研究。结果表明:PPO-g-MAH的加入能够明显降低PPO/PA66合金中PPO分散相尺寸且玻璃化转变温度逐步向低温方向偏移,而PA66相的熔融焓和结晶焓也明显降低,都表明两相相容性的显著改善;PPO-g-MAH不仅能改善PPO/PA66合金的相容性,还能够进一步改善PPO/PA66/GF体系中玻璃纤维与基体树脂间的界面性能;宏观表现为PPO/PA66合金和PPO/PA66/GF体系物理力学性能的大幅度提升。
The influence of Maleic Hydride functionalized polyphenyl ether(PPO-g-MAH)as compatibilizer on the properties of polyphenyl ether(PPO)/polyamide(PA)66 alloy and 30%glass fiber reinforced PPO/PA66 alloy(PPO/PA66/GF)were studied.The microstructure,melting and crystallization behavior and mechanical properties of PPO/PA66 alloys with different addition of PPO-g-MAH were investigated by using scanning electron microscope(SEM),Fourier transform infrared spectroscopy(FTIR),differential scanning calorimeter(DSC)and mechanics performance testing.The results show that the glass transition temperature(T g)of PPO phase tends to shift toward the lower temperature and its size becomes much smaller,the melting enthalpy and crystallization enthalpy of PA66 phase become weaker with the increasing content of PPO-g-MAH increasing in PPO/PA66 alloys,which shows the significantly increased compatibility.PPO-g-MAH not only could improve the compatibility of PPO/PA66 alloy but also further enhance the interfacial properties between glass fiber and matrix in PPO/PA66/GF system.The mechanical properties and toughness also greatly improve with the addition of PPO-g-MAH,both in PPO/PA66 alloys and PPO/PA66/GF system.
出处
《塑料工业》
CAS
CSCD
北大核心
2021年第4期60-64,178,共6页
China Plastics Industry
关键词
聚苯醚/尼龙66合金
相容剂
马来酸酐接枝聚苯醚
微观形貌
力学性能
Polyphenyl Ether/Polyamide 66 Alloy
Compatibilizer
Maleic Hydride Functionalized Polyphenyl Ether
Microstructure
Mechanical Properties
