Journal of Thermal Analysis and Calorimetry

, Volume 134, Issue 3, pp 2089–2096 | Cite as

The thermal property and flame retardancy of RPC with a polyelectrolyte complex of nanocrystalline cellulose and ammonium polyphosphate

  • Xin Cai
  • He Chen
  • Dong Jiang
  • Mingzhu Pan
  • Changtong Mei


Polyelectrolyte complexes (PECs) with nanocrystalline cellulose and ammonium polyphosphate (NCC/APP) were prepared by an accessibly oriented self-assembly method, and the morphology and ultrastructure were investigated with transmission electron micrographs, scanning electric microscopy, Fourier infrared, and X-ray diffraction. The prepared PECs were then used as a flame-retardant system in rice straw-HDPE composites (RPC), and the thermal degradation, flame retardancy, and mechanical properties were studied by thermogravimetry, cone calorimetry, limited oxygen index (LOI) and mechanical testing. The thermal stability and flame retardancy of RPC were significantly influenced with an incorporation of PECs. PECs can promote the thermal degradation of RPC that take place earlier and stabilize the char residues. PECs can significantly improve the LOI of RPC, and LOI increased to 24.8% and 25.0% in the presence of NCC1/APP and NCC5/APP. PECs had a slight effect on heat release rate. PECs can also improve the mechanical property of RPC, and the tensile and flexural strength were increased with the addition of PECs of NCC/APP.


Polyelectrolyte complex Nanocrystalline cellulose Ammonium polyphosphate Oriented self-assembly 



The authors would like to acknowledge National Natural Science Foundation of China (Grant No. 31670556), Science Fund for Distinguished Young Scholars of Nanjing Forestry University (NLJQ2015-02), and Qing Lan Project and Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD).


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2018

Authors and Affiliations

  1. 1.College of Materials Science and EngineeringNanjing Forestry UniversityNanjingChina
  2. 2.College of ScienceNanjing Forestry UniversityNanjingChina

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