| 초록 |
Poly(vinyl chloride) (PVC) is one of the most widely used thermoplastics because of its valuable properties, such as low cost, excellent chemical and fire resistance etc. However, one of the main drawbacks is its low thermal stability and limited temperature range to use. Crosslinking is an effective way to improve its thermal and mechanical properties. Usually, cross-linked PVC is obtained by exposing PVC to a radiation source. Nevertheless, this method is only suitable for thin-layer samples, since for thick-layer products, the surface region will decompose before crosslinking occurs in the interior. Recently, the crosslinking of PVC by organofunctional silanes though reactive processing has aroused a great deal of interest. In this study plasticized PVC is cross-linked by silanes. The structure of the synthesized cross-linked PVCs is analyzed using FT-IR. Thermal properties and mechanical properties are analyzed by TGA, DSC and UTM. |
