Preparation of Naphthalimide-containing Polysiloxane and Its Synergistic Flame Retardancy with Kaolin in Polycarbonate

Sen-hao Lei; Jie Liu; Tao Tang

doi:10.11777/j.issn1000-3304.2026.26149

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Preparation of Naphthalimide-containing Polysiloxane and Its Synergistic Flame Retardancy with Kaolin in Polycarbonate

更新时间：2026-07-07

- Preparation of Naphthalimide-containing Polysiloxane and Its Synergistic Flame Retardancy with Kaolin in Polycarbonate
- Acta Polymerica Sinica Pages: 1-13(2026)
- 作者机构：
  
  1.中国科学技术大学应用化学与工程学院合肥 230026
  2.中国科学院长春应用化学研究所高分子科学与技术全国重点实验室，长春 130022
  3.中国科学院长春应用化学研究所高分子材料工程实验室，长春 130022
- 作者简介：
  
  Jie Liu, E-mail: liujie@ciac.ac.cn:
  Tao Tang, E-mail: ttang@ciac.ac.cn
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2026.26149
  CLC：
- CSTR：32057.14.GFZXB.2026.7649
- Received：30 April 2026，
  
  Accepted：27 May 2026，
  
  Online First：06 July 2026，
- 稿件说明：
移动端阅览
雷森浩, 刘杰, 唐涛. 侧链含萘酰亚胺聚硅氧烷的制备及其与高岭土协同阻燃聚碳酸酯研究. 高分子学报, doi: 10.11777/j.issn1000-3304.2026.26149.

Lei, S. H.; Liu, J.; Tang, T. Preparation of naphthalimide-containing polysiloxane and its synergistic flame retardancy with kaolin in polycarbonate. Acta Polymerica Sinica (in Chinese), doi: 10.11777/j.issn1000-3304.2026.26149.
雷森浩, 刘杰, 唐涛. 侧链含萘酰亚胺聚硅氧烷的制备及其与高岭土协同阻燃聚碳酸酯研究. 高分子学报, doi: 10.11777/j.issn1000-3304.2026.26149. DOI： CSTR： 32057.14.GFZXB.2026.7649.

Lei, S. H.; Liu, J.; Tang, T. Preparation of naphthalimide-containing polysiloxane and its synergistic flame retardancy with kaolin in polycarbonate. Acta Polymerica Sinica (in Chinese), doi: 10.11777/j.issn1000-3304.2026.26149. DOI： CSTR： 32057.14.GFZXB.2026.7649.

摘要

为应对全氟和多氟烷基物质(PFAS)管控趋严及薄壁阻燃聚碳酸酯(PC)的低热低烟无卤化需求，本文设计合成了一种侧链含萘酰亚胺官能团的聚硅氧烷(PSNI)，并将其与高岭土(Kaolin)复配，制备了系列PC/PSNI/Kaolin复合材料，系统研究了复配比例对材料热稳定性、阻燃性能及力学性能的影响. 结果表明，PSNI与高岭土具有良好的协同阻燃效果，PSNI与高岭土的总添加量为10 wt%，质量比为1:1时，PC/5%PSNI/5%Kaolin的极限氧指数(LOI)提高至43.7%，1.6 mm厚样品可通过UL-94 V-0级别. 与纯PC相比，峰值热释放速率(pHRR)、峰值烟释放速率(pSPR)、总热释放量(THR)和总烟生成量(TSP)分别降低56%、42%、25%和57%. PSNI与高岭土通过化学交联成炭与物理阻隔的协同机制，促进形成高质量炭层，有效阻隔了热量和烟气的传递.

Abstract

In response to increasingly stringent regulations on per- and polyfluoroalkyl substances (PFAS) and the demand for halogen-free thin-wall flame-retardant polycarbonate (PC) with low heat and smoke release

a naphthalimide-functionalized polysiloxane (PSNI) was designed and synthesized. PSNI was synergistically combined with kaolin to prepare a series of PC/PSNI/Kaolin composites

and the effects of the compounding ratios on thermal stability

flame retardancy

and mechanical properties were systematically investigated. The results demonstrated that PSNI and Kaolin exhibited a pronounced synergistic flame retardant effect. At a total loading of 10 wt% with a mass ratio of 1:1

the limiting oxygen index (LOI) of PC/5%PSNI/5%Kaolin increased to 43.7%

and the 1.6 mm thick specimen achieved a UL-94 V-0 rating. Compared with neat PC

the peak heat release rate (pHRR)

peak smoke production rate (pSPR)

total heat release (THR)

and total smoke production (TSP) were reduced by 56%

42%

25%

and 57%

respectively. Through a synergistic mechanism involving chemical crosslinking/charring and physical barrier effects

PSNI and kaolin promoted the formation of a high-quality char layer

effectively suppressing the transfer of heat and smoke.

关键词

Keywords

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