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The Effect of OMMT on the Morphology and Mechanical Properties of PVC/ABS Blends |
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| Authors: | Shuhao Qin Minmin Zhang Jinfeng Lei Min He Jie Yu |
| Institution: | 1. National Engineering Research Center for Compounding and Modification of Polymer Materials , Guiyang, China;2. National Engineering Research Center for Compounding and Modification of Polymer Materials , Guiyang, China;3. School of Materials Science and Metallurgical Engineering , Guizhou University , Guiyang, Guizhou, China;4. School of Materials Science and Metallurgical Engineering , Guizhou University , Guiyang, Guizhou, China |
| Abstract: | Poly(vinyl chloride) (PVC)/acrylonitrile-butadiene-styrene (ABS) blends containing organically modified montmorillonite (OMMT) were prepared using a twin-screw extruder followed by injection molding. The OMMT dispersion was evaluated by X-ray diffraction and transmission electron microscopy. The clay was preferentially situated in the PVC phase and across the interfaces of PVC/ABS. The effect of the addition of OMMT on the morphology and mechanical properties was also evaluated. Scanning electron microscopy revealed a large reduction in domain size when OMMT was used. The mechanical properties were studied through tensile and impact tests. The yield stress increased when an appropriate amount of OMMT was used without impairing the impact strength. |
| Keywords: | ABS morphology OMMT PVC |