Abstract
This work is focused on developing a new type of polymer blend to
improve the viscoelastic property of methyl methacrylate acrylonitrile
butadiene styrene (MABS). A multi-phase binary polymer blend was
prepared by melt mixing in a twin screw extruder with three different
weight ratios (10, 20, and 30 wt%) with a dynamically vulcanized alloy
consisting mostly of fully cured ethylene propylene diene rubber (EPDM)
particles encapsulated in a polypropylene (PP) matrix trade name
Santoprene and an engineered styrene based thermoplastic elastomer trade
name VDT to enhance the viscoelastic property of the blends. The
compatibility and performance of the binary blend were studied by
differential scanning calorimetry (DSC), dynamic mechanical analysis
(DMA), Fourier transform infrared (FT-IR) spectroscopy, nuclear magnetic
resonance (NMR), laser microscopy, scanning transmission electron
microscopy (STEM) and tensile analysis. The DMA analysis of the samples
revealed that the damping performance was significantly increased with
the incorporation of the elastomeric phase into the MABS matrix. In
addition, the morphological analysis revealed that VDT is more
compatible with MABS compared to Santoprene. The NMR and FT-IR analysis
further supported the reason for higher compatibility of VDT and MABS
blend. The improvement of the damping properties has been observed with
the increased wt % of the VDT and Santoprene in the blends.
Original language | English |
---|---|
Article number | e53309 |
Journal | Journal of Applied Polymer Science |
Volume | 140 |
Issue number | 2 |
Number of pages | 12 |
ISSN | 0021-8995 |
DOIs | |
Publication status | Published - 2023 |
Keywords
- Damping
- Injection molding
- Polymer blend
- Viscoelasticity