A facile approach to prepare anhydrous  MgCO 3   and its effect on the mechanical and flame retardant properties of  PVC  composites | Zendy

Bi Qiuyan | Zendy; Lu Yunhua | Zendy; Zhao Chunyan | Zendy; Ma Xiaohong | Zendy; Khanal Santosh | Zendy; Xu Shiai | Zendy

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A facile approach to prepare anhydrous MgCO 3 and its effect on the mechanical and flame retardant properties of PVC composites

Author(s) -

Bi Qiuyan,

Lu Yunhua,

Zhao Chunyan,

Ma Xiaohong,

Khanal Santosh,

Xu Shiai

Publication year - 2021

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.51349

Subject(s) - anhydrous , thermal stability , materials science , composite number , composite material , fire retardant , chemical engineering , chemistry , organic chemistry , engineering

Anhydrous MgCO 3 is considered a promising inorganic filler because of its many outstanding properties. In this study, a facile approach was developed to prepare anhydrous MgCO 3 using urea as CO 2 source. MgCO 3 with cube‐like morphology (MC‐cube) was prepared and then modified with β‐cyclodextrin (CD) (CD@MC‐cube) in order to improve its interfacial adhesion with PVC matrix. The results indicate that the incorporation of MgCO 3 can not only reinforce and toughen PVC composites, but it can also enhance their thermal stability and flame retardancy. Specifically, the impact strength of CD@MC‐cube/PVC composite with 4 wt% of CD@MC‐cube is increased by 92.5%, and the total smoke production and the total heat release of CD@MC‐cube/PVC composite with 12 wt% of CD@MC‐cube are decreased by 38.8% and 51.3% compared with that of PVC matrix, respectively.

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