Inorganic Thermoplastic Flame Retardant as a Basic Component of Low-combustible Polymer Blends

Viktor A. Novikov; Elena V. Stegno; Andrey V. Grachev; Ali D. Aliev; Victor Yu. Bychkov; Irina O. Plyusnina; Uliana V. Nikulova; Aleksey V. Shapagin; Alexander Yu. Shaulov; Alexander A. Berlin

doi:10.1007/s10118-025-3528-y

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Inorganic Thermoplastic Flame Retardant as a Basic Component of Low-combustible Polymer Blends

RESEARCH ARTICLE | Updated：2026-02-13

- Inorganic Thermoplastic Flame Retardant as a Basic Component of Low-combustible Polymer Blends
- Chinese Journal of Polymer Science Vol. 44, Issue 3, Pages: 894-904(2026)
- Affiliations：
  
  a.Semenov Federal Research Center for Chemical Physics Russian Academy of Sciences, Moscow 119991, Russia
  b.Frumkin Institute of Physical Chemistry and Electrochemistry Russian Academy of Sciences, Moscow 119071, Russia
- Author bio：
  
  shaulov@polymer.chph.ras.ru
- Funds：
- DOI：10.1007/s10118-025-3528-y
  CLC：
- Received：09 October 2025，
  
  Accepted：08 December 2025，
  
  Online First：06 February 2026，
  
  Published：15 March 2026
- Accepted：
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Novikov, V. A.; Stegno, E. V.; Grachev, A. V.; Aliev, A. D.; Bychkov, V. Y.; Plyusnina, I. O.; Nikulova, U. V.; Shapagin, A. V.; Shaulov, A. Y.; Berlin, A. A. Inorganic thermoplastic flame retardant as a basic component of low-combustible polymer blends. Chinese J. Polym. Sci. 2026, 44, 894–904

Viktor A. Novikov, Elena V. Stegno, Andrey V. Grachev, et al. Inorganic Thermoplastic Flame Retardant as a Basic Component of Low-combustible Polymer Blends[J]. Chinese Journal of Polymer Science, 2026, 44(3): 894-904.
Novikov, V. A.; Stegno, E. V.; Grachev, A. V.; Aliev, A. D.; Bychkov, V. Y.; Plyusnina, I. O.; Nikulova, U. V.; Shapagin, A. V.; Shaulov, A. Y.; Berlin, A. A. Inorganic thermoplastic flame retardant as a basic component of low-combustible polymer blends. Chinese J. Polym. Sci. 2026, 44, 894–904 DOI： 10.1007/s10118-025-3528-y.

Viktor A. Novikov, Elena V. Stegno, Andrey V. Grachev, et al. Inorganic Thermoplastic Flame Retardant as a Basic Component of Low-combustible Polymer Blends[J]. Chinese Journal of Polymer Science, 2026, 44(3): 894-904. DOI： 10.1007/s10118-025-3528-y.

摘要

Hybrid blends of inorganic and organic polymers are obtained by the extrusion mixing method. When the melt cools

phase decay occurs. The oxygen index of the flexible hybrid is 55.

Abstract

A new principle for producing fire-resistant polymer materials with increased deformation properties using a flame retardant not as a heterogeneous additive

but as a thermoplastic flame retardant in a hybrid polymer mixture with a polyhydrocarbon is considered. Hybrid polymer blends of low-molecular ammonium polyphosphate (APP) with an ethylene-vinyl acetate copolymer (EVA) with an APP content of 80 wt% with enhanced deformation properties were obtained by extrusion mixing at various temperatures in the range from 200 °C to 250 °C. A chemical scheme for the transformations of the components during the formation of the composite is proposed. X-ray diffraction analysis showed the formation of new crystalline structures of APP. The phase structure of the systems corresponding to the model of a dispersed-filled composite in which EVA plays the role of a matrix

determining the deformation of the mixture

and the filler is ammonium polyphosphate

was studied by scanning electron microscopy (SEM). The method of FTIR microscopy showed chemical interactions between EVA and APP with the formation of amide groups. The conditions for obtaining compositions characterized by heat resistance of 210 °C

oxygen index of 55 and ultimate elongation at drawing of 213% were established.

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references

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