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第 36 卷第 2 期 精 细 化 工 Vol.36, No.2
201 9 年 2 月 FINE CHEMICALS Feb. 2019

橡塑助剂
苯并嗪协效二乙基次磷酸铝阻燃 PA66 的研究

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鲁哲宏 ，冯伟丽 ，康兴隆 ，刘保英 ，房晓敏 1,2* ，丁 涛 1,2
（1. 河南大学 化学化工学院 功能有机分子工程研究所，河南 开封 475004；2. 阻燃与功能材料河南省
工程实验室，河南 开封 475004）
摘要：以双酚 A 型苯并嗪（BOZ）为成炭协效剂，二乙基次磷酸铝（ADP）为阻燃剂，通过熔融共混制备了
阻燃尼龙 66（PA66）复合材料。通过垂直燃烧测试（UL94）、极限氧指数（LOI）、锥形量热（Cone）、SEM 以
及 TGA 等考察了复合材料的协同阻燃性能及作用机制。结果表明：BOZ 和 ADP 具有良好的协同阻燃效应。适
量 BOZ 的引入不但可以提高材料的阻燃性能，还可以改善材料的热稳定性，并且对材料的力学性能影响不大。
添加占体系质量分数 0.3% BOZ 和质量分数 7.7% ADP 时，ADP/BOZ 阻燃 PA66 复合材料的垂直燃烧达到 UL94
V-0 级，LOI 达到了 32.8%，拉伸强度、弯曲强度分别为 81.52、111.11 MPa。阻燃机理研究表明：ADP/BOZ 和
ADP 都是以气相阻燃作用为主的气相和凝聚相协同阻燃机制。
关键词：PA66；二乙基次磷酸铝；苯并嗪；阻燃机理；协效；橡塑助剂
中图分类号：TQ323.6 文献标识码：A 文章编号：1003-5214 (2019) 02-0322-06

Research of Flame Retardant PA66 Composites with Benzoxazine and
Diethyl-Phosphate Aluminum

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LU Zhe-hong , FENG Wei-li , KANG Xing-long , LIU Bao-ying , FANG Xiao-min 1,2* , DING Tao
（1. Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering, Henan
University, Kaifeng 475004, Henan, China; 2. Henan Engineering Laboratory of Flame-Retardant and Functional
Materials, Kaifeng 475004, Henan, China）
Abstract: Flame-retardant nylon 66 (PA66) composites were prepared by melt blending process using
bisphenol A benzoxazine (BOZ) as synergist and diethyl-phosphate aluminum (ADP) as flame retardant.
The synergistic flame retardant effects and mechanism of PA66 composites were investigated by means of
UL94 vertical combustion test, limiting oxygen index (LOI) value, cone calorimeter test (Cone), SEM and
TGA. The results showed that BOZ and ADP had good synergistic effect on flame retardant properties of
PA66. The introduction proper amount of BOZ could not only improve the flame retardant properties of the
PA66 composites, but also enhance the thermal stability, and have little influence on the mechanical
properties of the material. When the adding amounts of BOZ and ADP were 0.3% and 7.7% (mass fraction),
respectively, the prepared ADP/BOZ/PA66 composites could pass UL94 V-0 flammability rating, the LOI
value reached 32.8%, the tensile strength was 81.52 MPa, and the bending strength was 111.11 MPa. The
flame retardant mechanism revealed that both ADP/BOZ and ADP were dominated by gas phase
flame-retardant mechanism and accompanying condensed phase flame-retardant mechanism
simultaneously.
Key words: PA 66; diethyl-phosphate aluminum; benzoxazine; flame retardant mechanism; synergistic
effect; rubber and plastics auxiliaries
Foundation items: National Natural Science Foundation of China-Youth Science Fund (51703051); Science
and Technology Development Plan of Henan Province (162102210023，162300410018)

收稿日期：2018-06-20; 定用日期：2018-11-08; DOI: 10.13550/j.jxhg.20180445
基金项目：国家青年科学基金项目（51703051）；河南省科技发展计划项目（162102210023，162300410018）
作者简介：鲁哲宏（1995—），男，硕士生。联系人：房晓敏（1974—），女，教授，硕士生导师，E-mail：xmfang@henu.edu.cn。