Compatibilization of Graphene Oxide on Polypropylene/Polyamide 6 of Two Components
Cong HE1, Bao-li OU1,2,*(), Zheng-feng LI1
1 Institute of Materials Science and Engineering, Hunan University of Science and Technology, Xiangtan 411201, Hunan, China 2 State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
The graphene oxide were firstly prepared by a modified Hummers method, and then blended with polypropylene (PP)/polyamide 6(PA6) blends. The compatibilizations of the graphene oxide on the PP/PA6 blends were investigated by means of scanning electron microscopy (SEM). SEM observation shows the domain size of the dispersed PA6 phase significantly decreases with the addition of graphene oxide. Due to the chemical reaction of graphene oxide with amino group of PA6, a stronger interfacial adhesion between graphene oxide, PP and PA6 is obtained, which is confirmed by mechanical analysis. The improved mechanical properties and decreased dispersed PA6 domain indicate the graphene oxide plays the role of coupling species between the two polymers. Therefore, a clear compatibilization effect is induced by graphene oxide in the immiscible PP/PA6 blends.
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