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Enhanced the Thermal Stability of Polyvinyl Chloride via Synergistic Effects of Basic Lanthanum Tartrate with Zinc Stearate and Pentaerythritol

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Abstract

Basic lanthanum tartrate (BLT) was synthesized by a simple chemical precipitation method and was characterized by elemental analysis and Fourier transform infrared spectroscopy. The effect of BLT on polyvinyl chloride (PVC) thermal stability has been studied through the Congo red test and the discoloration test. BLT displayed high stabilizing effect and the thermal stabilization time is 24 min when the percentage of BLT in PVC is 4%. The plasticizing ability of BLT is good. Tests indicated that when BLT was used as a stabilizer, the plasticizing time, plasticizing torque and balance torque of PVC were reduced. The BLT was also used to combine with one or more of zinc stearate, calcium stearate and pentaerythritol to form a composite stabilizer. When the mass ratio of basic lanthanum tartrate/zinc stearate/pentaerythritol was set to 3/1/1, the thermal stabilization time and discoloration resistance of the PVC sample were the best, and its thermal stabilization time was 44 min.

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Funding

This work was financially supported by the National Natural Science Foundation of China (Grant no. 51564040), fund of Nature Science of Inner Mongolia autonomous region, China (Grant no. 2015MS0218).

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Authors and Affiliations

  1. School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, 014010, Baotou, China

    Zhaogang Liu, Jingang Zhao, Mei Li, Yanhong Hu, Jinxiu Wu & Fushan Feng

  2. Key Laboratory of Green Extraction and Efficient Utilization of Light Rare-Earth Resources Ministry of Education, 014010, Baotou, China

    Zhaogang Liu, Jingang Zhao, Mei Li, Yanhong Hu, Jinxiu Wu & Fushan Feng

  3. Inner Mongolia Key Laboratory of Rare Earth Hydrometallurgy and Light Rare Earth Application, 014010, Baotou, China

    Zhaogang Liu, Jingang Zhao, Mei Li, Yanhong Hu, Jinxiu Wu & Fushan Feng

Authors
  1. Zhaogang Liu
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  2. Jingang Zhao
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  3. Mei Li
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  4. Yanhong Hu
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  5. Jinxiu Wu
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Correspondence to Zhaogang Liu or Mei Li.

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Zhaogang Liu, Zhao, J., Li, M. et al. Enhanced the Thermal Stability of Polyvinyl Chloride via Synergistic Effects of Basic Lanthanum Tartrate with Zinc Stearate and Pentaerythritol. Polym. Sci. Ser. B 63, 182–190 (2021). https://doi.org/10.1134/S156009042102007X

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  • DOI: https://doi.org/10.1134/S156009042102007X

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