Abstract
Poly (vinyl chlride)/Poly (methyl methacrylate) (PVC/PMMA) blends were prepared by melt blending at 160°C and 190°C over an entire composition range. The miscibility of the blends was characterized by dynamic mechanical thermal analysis, transmission electron microscopy, and light transmittance testing. The blends prepared at 160°C were homogeneous on our observed scale, while the blends prepared at 190°C clearly showed phase separation. The stress‐strain behaviors of the blends prepared at 160°C were investigated. The results showed that the toughness of the blends could be improved by an increase of PVC content, resulting effectively in a removal of intrinsic strain softening, a decrease in yield stress, and an increase in strain hardening. Furthermore, a core‐shell structured modifier was introduced into the PVC/PMMA blends, and the impact property of the blends was studied. The results showed that the addition of rubber particles could improve the toughness of the two series of blends. However, the blends prepared at 190°C had higher impact strengths than those prepared at 160°C, a result which may be attributed to phase separation. J. VINYL ADDIT. TECHNOL., 19:11–17, 2013. © 2013 Society of Plastics Engineers
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
