Preparation of Magnesium-Aluminum Hydrotalcite by Mechanochemical Method and Its Application as Heat Stabilizer in poly(vinyl chloride)

Yinan Jiang; Zhanhong Yang; Qingsong Su; Linlin Chen; Jian Wu; Jinlei Meng

doi:10.3390/ma13225223

Materials (Nov 2020)

Preparation of Magnesium-Aluminum Hydrotalcite by Mechanochemical Method and Its Application as Heat Stabilizer in poly(vinyl chloride)

Yinan Jiang,
Zhanhong Yang,
Qingsong Su,
Linlin Chen,
Jian Wu,
Jinlei Meng

Affiliations

Yinan Jiang: Institute of Chemical Power and Materials, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
Zhanhong Yang: Institute of Chemical Power and Materials, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
Qingsong Su: Institute of Chemical Power and Materials, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
Linlin Chen: Institute of Chemical Power and Materials, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
Jian Wu: Institute of Chemical Power and Materials, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
Jinlei Meng: Institute of Chemical Power and Materials, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China

DOI: https://doi.org/10.3390/ma13225223
Journal volume & issue: Vol. 13, no. 22
p. 5223

Abstract

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The traditional methods for preparing magnesium aluminum layered double hydrotalcite (Mg2Al-CO3LDHs) in industry include coprecipitation and hydrothermal methods. Both these methods have the disadvantages of high preparation cost and complicated water washing process. Using Mg(OH)2, Al(OH)3, and CO2 as raw materials in this work, the Mg2Al-CO3 LDHs are successfully prepared by mechanochemical method, which solves the shortcomings of traditional preparation method and realizes the conversion and utilization of CO2 resource. The prepared Mg2Al-CO3 LDHs are evaluated as a heat stabilizer in poly(vinyl chloride) (PVC). The result indicates that, when 2.4 phr Mg2Al-CO3 LDHs, 0.3 phr ZnSt2, and 0.3 phr of zinc acetylacetonate are added to the PVC, the thermal stability time of PVC can reach 190 min, which is better than PVC containing commercial Mg2Al-CO3 LDHs. Meanwhile, its processing performance is basically the same as the PVC containing commercial Mg2Al-CO3 LDHs.

Published in Materials

ISSN: 1996-1944 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering; Technology: Engineering (General). Civil engineering (General); Science: Natural history (General): Microscopy; Science: Physics: Descriptive and experimental mechanics
Website: http://www.mdpi.com/journal/materials/

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