Morphology and Mechanical Properties of Nylon 6/PBT Blends Compatibilized with Styrene/Maleic Anhydride Copolymer |
| |
Authors: | Shu-hao QIN Jie YU Qiang ZHENG Min HE Hong ZHU |
| |
Affiliation: | aDepartment of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, P. R. China bNational Engineering Research Center for Compounding and Modification of Polymeric Materials, Guiyang 550025, P. R. China |
| |
Abstract: | The mechanical properties and dynamic mechanical properties of blends composed of Nylon 6 and poly(butylenes terephthalate)(PBT),with styrene/maleic anhydride(SMA)as compatibilizer,were studied.The observation on the morphologies of the etched surfaces of the cryogenically fractured specimens via scanning electron microscopy(SEM)demonstrated that in the compatibilized Nylon 6/PBT blends,there exists a finer and more uniform dispersion induced by the in-situ interfacial chemical reactions during the preparation than that in the corresponding uncompatibilized blends.On the other hand,the overall mechanical properties of the compatibilized blends could be remarkably improved compared with those of the uncompatibilized ones.Moreover,increasing the amount of the compatibilizer SMA leads to a more efficient dispersion of the PBT phase in Nylon 6/PBT blends.Furthermore,there exists an optimum level of SMA added to achieve the maximum mechanical properties.As far as the mechanism of this reactive compatibilization is concerned,the enhanced interfacial adhesion is necessary to obtain improved dispersion,stable phase morphology,and better mechanical properties. |
| |
Keywords: | Nylon-6 PBT Morphology Dynamic mechanical property |
本文献已被 CNKI 维普 万方数据 ScienceDirect 等数据库收录! |
|