Research & Development

Preparation and flame retardant properties of basic magnesium carbonate composite flame retardant

  • Nan Zheng ,
  • Peng Tian ,
  • Xingkun Zhu ,
  • Xue Sun ,
  • Hongchang Pang ,
  • Guiling Ning
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  • State Key Laboratory of Fine Chemicals,Dalian University of Technology,Dalian 116024,China

Received date: 2020-08-13

  Online published: 2021-02-06

Abstract

A series of flame retardantcy EVA matrix composites were prepared by mixing and compression molding with silane surface treated basic magnesium carbonate nanosheets,magnesium hydroxide and aluminum hydroxide as composite flame retardants.The mechanical properties,processability and flame retardancy of the composites were investigated by uni-versal tensile test,melt index test,vertical buring test and cone calorimetric test respectively.And the thermal decomposition behavior of the composite flame retardant was studied by thermogravimetric analysis.The results showed that the composite flame retardant can decompose in a wider combustion temperature range with a proper proportion of flame retardant/EVA,which has a better flame retardant effect.And the heat release rate and smoke release rate of the composite flame retardant/EVA composite were significantly reduced to 181.060 kW/m2 and 0.032 m2/s,respectively.In addition,the tensile strength of the composite flame retardant/EVA composite was 9.73 MPa,the elongation at break was 155.07%,and the melt index was 1.00 g per 10 min,which can be used in the wire and cable industry.

Cite this article

Nan Zheng , Peng Tian , Xingkun Zhu , Xue Sun , Hongchang Pang , Guiling Ning . Preparation and flame retardant properties of basic magnesium carbonate composite flame retardant[J]. Inorganic Chemicals Industry, 2021 , 53(2) : 47 -50 . DOI: 10.11962/1006-4990.2020-0214

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