Abstract

In this paper, starch, distarch phosphate (DSP) and hydroxypropyl distarch phosphate (HPDSP) were used as “green” carbon sources with ammonium polyphosphate (APP) to prepare flame retardant reconstituted tobacco sheet (RTS) by paper-making process and the effect of these starch-based flame retardants on their thermal degradation and combustion properties was preliminarily investigated. Micro-scale combustion calorimetry results showed the value of the heat release of modified RTS was lower than that of pure RTS, demonstrating the restrained combustion behavior of modified RTS. TG-FTIR and TG-MS analysis indicated that the starch-based flame retardant coating promoted the char formation, inhibited char combustion and release of gaseous products except for NH₃, with the relative best comprehensive performance of APP-DSP. Cigarette burning cone analysis also confirmed that the modified RTS had lower temperature and smaller burning cone volume than that of pure RTS, especially APP-HPDSP-RTS. This work could highly expand the application of starch and its derivatives in flame retardant and tobacco industry.

Graphic abstract

中文翻译：

---

淀粉基阻燃剂对再生烟草片材热降解和燃烧性能的影响

摘要

本文以淀粉，磷酸二淀粉磷酸酯（DSP）和羟丙基磷酸二淀粉磷酸酯（HPDSP）为原料，结合多磷酸铵（APP）作为“绿色”碳源，通过造纸工艺制备了阻燃再生烟片（RTS）。对这些淀粉基阻燃剂的热降解和燃烧性能进行了初步研究。微型燃烧量热法的结果表明，改性RTS的放热值低于纯RTS，证明了改性RTS的燃烧行为受到抑制。TG-FTIR和TG-MS分析表明，除了NH ₃以外，淀粉基阻燃涂层促进了炭的形成，抑制了炭的燃烧和气体产物的释放。，具有APP-DSP相对最佳的综合性能。卷烟燃烧锥分析还证实，与纯RTS相比，改进的RTS具有较低的温度和较小的燃烧锥体积，尤其是APP-HPDSP-RTS。这项工作可以极大地扩展淀粉及其衍生物在阻燃剂和烟草工业中的应用。

图形摘要