Working Paper Article Version 1 This version is not peer-reviewed

Design and Synthesis of a New Mannitol Stearate Ester-Based Aluminum Alkoxides as a Novel Tri-Functional Additive for Poly(vinyl chloride) and Its Synergistic Effect with Zinc Stearate

Version 1 : Received: 24 April 2019 / Approved: 26 April 2019 / Online: 26 April 2019 (11:57:11 CEST)

A peer-reviewed article of this Preprint also exists.

Han, W.; Zhang, M.; Li, D.; Dong, T.; Ai, B.; Dou, J.; Sun, H. 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 2019, 11, 1031. Han, W.; Zhang, M.; Li, D.; Dong, T.; Ai, B.; Dou, J.; Sun, H. 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 2019, 11, 1031.

Journal reference: Polymers 2019, 11, 1031
DOI: 10.3390/polym11061031

Abstract

The 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 alkoxides (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 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 can 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 possesses the 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 with 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 exhibited an appreciable synergistic effect between MSE-Al and ZnSt2. The thermal stabilization mechanism and synergism effect of MSE-Al with ZnSt2 were then discussed.

Subject Areas

poly(vinyl chloride); tri-functional additive; mannitol stearate ester-based aluminum alkoxides; synergistic effect

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