Abstract
Polycaprolactone (PCL) composites filled with nanometer calcium carbonate (nano-CaCO3) were prepared by means of a twin-screw extruder in this study. The nano-CaCO3 surface treated with stearate. The crystalline properties of the PCL/nano-CaCO3 composites were measured with a differential scanning calorimeter to identify the influence of the nanometer filler content on the crystalline properties. The results show that the crystallization onset temperature, crystallization temperature, and crystallization end temperature of the composites were obviously higher than those of the unfilled PCL resin, and the crystallization degree (χc) of the composites increased with increasing particle weight fraction (φf) when φf was more than 1%. When φf was 1%, χc of the composite was less than that of the unfilled PCL resin. Moreover, the dispersion of the inclusions in the matrix was observed by means of scanning electron microscopy.
| Original language | English |
|---|---|
| Pages (from-to) | 2940-2944 |
| Number of pages | 5 |
| Journal | Journal of Applied Polymer Science |
| Volume | 128 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 5 Jun 2013 |
Keywords
- composites
- crystallization
- differential scanning calorimetry (DSC)
- nanostructured polymers
ASJC Scopus subject areas
- Materials Chemistry
- Polymers and Plastics
- Surfaces, Coatings and Films
- Chemistry(all)