Preparation and Properties of Polyolefin Elastomer Toughened Flame-retardant Nylon 6 Composites

CHEN Liang; LIU Zhi-hao; JING Qi; MA Jie; LIU Bao-ying; FANG Xiao-min; DING Tao; QIAO Zhi-chuan

doi:10.14028/j.cnki.1003-3726.2026.26.053

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Preparation and Properties of Polyolefin Elastomer Toughened Flame-retardant Nylon 6 Composites

更新时间：2026-07-06

- Preparation and Properties of Polyolefin Elastomer Toughened Flame-retardant Nylon 6 Composites
- Polymer Bulletin Vol. 39, Issue 7, Pages: 1196-1203(2026)
- 作者机构：
  
  河南大学化学与分子科学学院　开封 475004
  河南省功能材料与催化反应工程研究中心　开封 475004
  山东泰星新材料股份有限公司　济南 250299
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2026.26.053
  CLC：
- Received：29 January 2026，
  
  Accepted：17 March 2026，
  
  Online First：29 May 2026，
  
  Published：20 July 2026
- 稿件说明：
移动端阅览
陈亮, 刘志豪, 荆琪, 马洁, 刘保英, 房晓敏, 丁涛, 乔志川. 聚烯烃弹性体增韧尼龙6阻燃复合材料的制备与性能. 高分子通报, 2026, 39(7), 1196–1203.

Chen, L.; Liu, Z. H.; Jing, Q.; Ma, J.; Liu, B. Y.; Fang, X. M.; Ding, T.; Qiao, Z. C. Preparation and properties of polyolefin elastomer toughened flame-retardant nylon 6 composites. Polym. Bull. (in Chinese), 2026, 39(7), 1196–1203.
陈亮, 刘志豪, 荆琪, 马洁, 刘保英, 房晓敏, 丁涛, 乔志川. 聚烯烃弹性体增韧尼龙6阻燃复合材料的制备与性能. 高分子通报, 2026, 39(7), 1196–1203. DOI： 10.14028/j.cnki.1003-3726.2026.26.053.

Chen, L.; Liu, Z. H.; Jing, Q.; Ma, J.; Liu, B. Y.; Fang, X. M.; Ding, T.; Qiao, Z. C. Preparation and properties of polyolefin elastomer toughened flame-retardant nylon 6 composites. Polym. Bull. (in Chinese), 2026, 39(7), 1196–1203. DOI： 10.14028/j.cnki.1003-3726.2026.26.053.

摘要

针对尼龙6(PA6)阻燃改性后韧性下降的关键问题，以16%的马来酸酐接枝乙烯–辛烯共聚物(POE-

-MAH)为增韧剂，采用二乙基次膦酸铝(ADP)、聚磷酸铵(APP)、三聚氰胺氰尿酸盐(MCA)、离子液体(BR-S13)和苯并噁嗪(BOZ-Si)构建复合膨胀型阻燃体系，系统研究了增韧与阻燃协效作用对PA6复合材料综合性能的影响。结果表明：当总阻燃剂添加量为20% (ADP与MCA质量比为8:1)，且复配2.4% BR-S13时，复合材料LOI值达36.2%，通过UL-94 V-1级，缺口冲击强度为25.4 kJ/m

，较纯PA6提升10倍，热释放速率峰值(PkHRR)较纯 PA6下降39.8%；进一步优化阻燃体系为ADP、MCA、APP与BOZ-Si按质量比18.4:2.1:4.3:1.0复配，并引入0.19%离子液

体时，复合材料LOI值为28.8%，并通过UL-94 V-0级，缺口冲击强度为6.1 kJ/m

，较纯PA6提升144.0%，PkHRR下降51.2%，总热释放量(THR)降低了12.0%。残炭分析表明，BOZ-Si与APP的引入可促进形成致密连续的炭层，增强凝聚相阻燃效果。本研究通过配方优化实现了PA6复合材料阻燃与增韧性能的协同提升，为其在防火安全要求较高的领域应用提供了技术支撑。

Abstract

To address the critical issue of toughness deterioration in flame-retarded nylon 6 (PA6)

this study employed 16% maleic anhydride grafted ethylene-octene copolymer (POE-

-MAH) as a toughening agent and constructed a composite intumescent flame-retardant system using aluminum diethylphosphinate (ADP)

ammonium polyphosphate (APP)

melamine cyanurate (MCA)

ionic liquid (BR-S13)

and benzoxazine (BOZ-Si). The synergistic effect of toughening and flame retardancy on the comprehensive properties of PA6 composites were systematically investigated. The results showed that when the total flame retardant loading was 20% (the mass ratio of ADP to MCA is 8:1)

and 2.4% BR-S13 was co-incorporated

the composite achieved a limiting oxygen index (LOI) of 36.2%

passed UL-94 V-1 rating

and exhibited a notched Izod impact strength of 25.4 kJ/m

which was 10 times higher than that of neat PA6

the peak heat release rate (PkHRR) decreased by 39.8%

compared with neat PA6. The flame retardant system was further optimized with ADP

MCA

APP

and BOZ-Si at a mass ratio of 18.4:2.1:4.3:1.0

and 0.19% ionic liquid was introduced. The composite exhibited an LOI of 28.8%

passed the UL-94 V-0 rating

and showed a notched Izod impact strength of 6.1 kJ/m

representing a 144.0% increase compared with neat PA6. Meanwhile

the PkHRR decreased by 51.2% and the total heat release (THR) was reduced by 12.0%. Char residue analysis revealed that the incorporation of BOZ-Si and APP promoted the formation of a dense and continuous char layer

enhancing the condensed-phase flame retardant effect. This study achieved the synergistic improvement of flame retardancy and toughness in PA6 composites through formula optimization

providi

ng technical support for their application in fields with high fire safety requirements.

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