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RETRACTED ARTICLE: Preparation of Multilayers Zinc Hydroxystannate Microcapsules and its Application in Flame-Retardant PVC Composites

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This article was retracted on 18 June 2019

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Abstract

Although research on halogen free flame retardant has achieved great progress, its practical application is restricted due to high additive amount and low efficency. To solve this problem, multilayers microcapsule [melamine–formaldehyde resin (MF)/silicon dioxide (SiO2)/zinc hydroxystannate (ZHS)] was prepared through a two-step method. Moreover, when 16.40 wt% SiO2/ZHS microcapsules was mixed with poly(vinyl chloride) (PVC) matrix, the obtained PVC composites exhibited a high limited oxygen index (LOI) of 32.5%, showing its excellent flame retardancy. Furthermore, for the compatibility between MF/SiO2/ZHS microcapsules and PVC to be improved, MF was coated to SiO2/ZHS microcapsules by in situ polymerization. When 16.40 wt% MF/SiO2/ZHS microcapsules were mixed with PVC matrix, the obtained PVC composites exhibited a high LOI of 35.5%, showing its high flame retardancy. Therefore, this easily prepared multilayers microcapsule with sufficient flame retardancy in this work, it could have a potential for engineering applications.

Taking advantage of microencapsulation strategy to fabricate MF/SiO2/ZHS microcapsules for fire-retardant PVC materials

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Change history

  • 18 June 2019

    The authors have retracted this article (1) because the data are unreliable.

  • 18 June 2019

    The authors have retracted this article (1) because the data are unreliable. After publication, the authors found that the preparation of the SiO2/ ZHS and the MF/ SiO2/ ZHS microcapsules is not reproducible and therefore the mechanical properties and the flame retardancy properties described are incorrect.

  • 18 June 2019

    The authors have retracted this article (1) because the data are unreliable. After publication, the authors found that the preparation of the SiO2/ ZHS and the MF/ SiO2/ ZHS microcapsules is not reproducible and therefore the mechanical properties and the flame retardancy properties described are incorrect.

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Authors and Affiliations

  1. Zhejiang Provincial Key Laboratory of Industrial Textile Materials & Manufacturing Technology, College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou, 310018, People’s Republic of China

    Bin Zhang, Yujie Jiang & Jian Han

Authors
  1. Bin Zhang
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  2. Yujie Jiang
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  3. Jian Han
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Corresponding author

Correspondence to Jian Han.

Additional information

The authors have retracted this article because the data are unreliable. After publication, the authors found that the preparation of the SiO~2/~ ZHS and the MF/ SiO~2~/ ZHS microcapsules is not reproducible and therefore the mechanical properties and the flame retardancy properties described are incorrect. All authors agree to this retraction.

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Zhang, B., Jiang, Y. & Han, J. RETRACTED ARTICLE: Preparation of Multilayers Zinc Hydroxystannate Microcapsules and its Application in Flame-Retardant PVC Composites. Silicon 10, 2845–2854 (2018). https://doi.org/10.1007/s12633-018-9824-1

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  • DOI: https://doi.org/10.1007/s12633-018-9824-1

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