Thermoplastic Interpenetrating Polymer Networks Based on Polyvinyl Chloride and Polyurethane Ionomers for Damping Application

摘要

Thermoplastic interpenetrating polymer networks (TIPN_s) based on polyvinyl chloride (PVC) and polyurethane ionomers (PUI) in different weight ratios of 15/85, 25/75, 50/50, 75/25, and 85/15 PVC/PUI were prepared by sequential polymerization technique. IPN composition of 85/15 PVC/PUI was selected for filler addition based on thermal and mechanical data. These composite films containing calcinated clay filler (CCF) in a different weight percentage from 0.5 to 15 wt % were prepared. Characterization of thermoplastic IPN_s (TIPN) and filled IPN_s (TIPN-F) were carried out using Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), differential scanning calorimetry (DSC), stress-strain properties, and hardness were studied. The PVC/PUI: 85/15 based TIPN and TIPN-F5 show tough films, better miscibility, and thermal stability.