Inorganic nanoparticles have been dispersed in resin blends to prepare many nano-composite resin materials. This hybrid material exhibits the combined properties of inorganic nanoparticles such as mechanical strength, elasticity and thermal stability, and of the processibility and flexibility of organic polymers.
Previous studies reported that the addition of SiO2 nanoparticles to PVC resin leads to enhanced sound resistance, and adding TiO2 nanoparticles to PVC resin can enhance its whiteness and prevent UV degradation of resin products. However, there are very few polymer materials with both SiO2 and TiO2 nanoparticles.
Addition of SiO2 and TiO2 nanoparticles together to the PVC resin will result in its lower degradation of by UV light and better resistance to degradation than adding either of them alone.
For the purpose of using PVC nano-composite as a raw material instead of rubber that is often used as a conveying belt material, Jang Un Hui, a researcher at the Institute of Analysis, prepared new nano-composites by mixing SiO2 and TiO2 nanoparticles with PVC resin, and carried out differential scanning calorimetry (DSC) under non-isothermal conditions in order to investigate the crystallization behavior and kinetics of the newly prepared PVC/Nano SiO2-TiO2 composites.
The analysis results showed that the crystallization behavior of PVC/Nano SiO2-TiO2 composite with 3-5% SiO2 and TiO2 nanoparticles is good.
For more information, please refer to her paper “Study on the non-isothermal crystallization kinetics of PVC/NanoSiO2-TiO2 composite resin by DSC” in “Journal of Polymer Research” (SCI).