Document Type
Journal Article
Publication Title
Polymers
Publisher
MDPI
School
School of Engineering
RAS ID
30554
Funders
Funding information available at: https://doi.org/10.3390/polym11061031
Abstract
Thermal stabilizers, lubricant, and plasticizers are three crucial additives for processing poly(vinyl chloride) (PVC). In this study, a new mannitol stearate ester-based aluminum alkoxide (MSE-Al) was designed and synthesized as a novel additive for PVC. The thermal stability and processing performance of PVC stabilized by MSE-Al were evaluated by the Congo red test, conductivity measurement, thermal aging test, ultravioletevisible (UV–Vis) spectroscopy test, and torque rheometer test. Results showed that the addition of MSE-Al could not only markedly improve the long-term thermal stability of PVC, but also greatly accelerate the plasticizing and decrease the balance torque, which demonstrated that MSE-Al possessed a lubricating property. Thus, MSE-Al was demonstrated to be able to provide tri-functional additive roles, e.g., thermal stabilizer, plasticizer, and lubricant. The test results for the thermal stability of PVC indicated that the initial whiteness of PVC stabilized by MSE-Al was not good enough, thus the synergistic effect of MSE-Al with zinc stearates (ZnSt2) on the thermal stability of PVC was also investigated. The results showed that there is an appreciable synergistic effect between MSE-Al and ZnSt2. The thermal stabilization mechanism and synergism effect of MSE-Al with ZnSt2 are then discussed.
DOI
10.3390/polym11061031
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Comments
Han, W., Zhang, M., Li, D., Dong, T., Ai, B., Dou, J., & Sun, H. (2019). Design and synthesis of a new mannitol stearate ester-based aluminum alkoxide as a novel tri-functional additive for poly (vinyl chloride) and its synergistic effect with zinc stearate. Polymers, 11(6), Article 1031. Available here