Page 192 - 《精细化工》2022年第2期

第 39 卷第 2 期 精 细 化 工 Vol.39, No.2
2022 年 2 月 FINE CHEMICALS Feb. 2022

橡塑助剂
DOPS 衍生物阻燃剂的合成及

聚乳酸复合材料的性能

1
1
1
1*
1
2
王建航 ，许志彦 ，叶小林 ，侯泽明 ，龙丽娟 ，宝冬梅
（1. 贵州民族大学 化学工程学院，贵州 贵阳 550025；2. 国家复合改性聚合物材料工程技术研究中心，
贵州 贵阳 550014）
摘要：以马来酸酐（MAH）和 9,10-二氢-9-氧杂-10-磷杂菲-10-硫化物（DOPS）为原料，合成了马来酸酐-9,10-
二氢-9-氧杂-10-磷杂菲-10-硫化物（MAH-DOPS），将 MAH-DOPS 应用于聚乳酸（PLA）的阻燃改性。采用 TG、
极限氧指数（LOI）、垂直燃烧（UL-94）、锥形量热、TG-FTIR 和 SEM-EDS 测试了 MAH-DOPS 对 PLA 的热稳
定性、阻燃性能和热降解行为的影响。结果表明，阻燃剂 MAH-DOPS 中的 P、S 元素产生的协同阻燃作用提高
了阻燃效率，改善了 PLA 的阻燃性能。当阻燃剂质量分数为 5%时，制备的 PLA/MAH-DOPS-5%的 LOI 为 28.1%，
达到 UL-94 V-0 级，总热释放量和平均有效燃烧热降低。MAH-DOPS 同时在气相和凝聚相发挥阻燃作用，并以
气相阻燃机理为主。
关键词：MAH-DOPS；聚乳酸；合成；阻燃机理；橡塑助剂
中图分类号：TB34；TQ317 文献标识码：B 文章编号：1003-5214 (2022) 02-0396-07

Synthesis of flame retardant based on DOPS derivatives and
properties of polylactic acid composites

1*
1
2
1
1
1
WANG Jianhang , XU Zhiyan , YE Xiaolin , HOU Zeming , LONG Lijuan , BAO Dongmei
（1. School of Chemical Engineering, Guizhou Minzu University, Guiyang 550025, Guizhou, China; 2. National
Engineering Research Center for Compounding and Modification of Polymer Materials, Guiyang 550014, Guizhou, China）
Abstract: Maleic anhydride-9,10-dihydro-9-oxa-10-phosphophene-10-sulfide (MAH-DOPS) was synthesized
from maleic anhydride (MAH) and 9,10-dihydro-9-oxa-10-phosphophene-10-sulfide (DOPS) and used to
modify polylactic acid (PLA). The effects of MAH-DOPS on the thermal stabilitiy, flame-retardant and
thermal degradation behaviour of PLA were investigated by TG, limit oxygen index (LOI) test, vertical
flame test (UL-94), cone calorimeter, thermogravimetric-Fourier transform infrared spectroscopy analysis
(TG-FTIR) and SEM-EDS. The results showed that the synergistic flame retarding effect of P and S
elements in MAH-DOPS improved the flame retarding efficiency and flame retarding performance of PLA.
When the mass fraction of flame retardant was 5%, the LOI of prepared PLA/MAH-DOPS-5% was 28.1%,
the vertical combustion grade reached UL-94 V-0, both total heat release and average effective heat of
combustion decreased. MAH-DOPS played a flame retardant role in both gas phase and condensed phase,
and the flame retardant mechanism was mainly in the gas phase.
Key words: MAH-DOPS; polylactic acid; synthesis; flame retardant mechanism; rubber and plastics
auxiliaries

聚乳酸（PLA）是一种公认的环境友好型材料， 因优异的机械性能、生物可降解性和生物相容性而

收稿日期：2021-10-20; 定用日期：2021-12-20; DOI: 10.13550/j.jxhg.20211075
基金项目：国家自然科学基金项目（51863004）；贵州省科技计划项目（黔科合基础[2020]1Y211）；贵州省科技计划项目（黔科合基
础- ZK[2021]一般 248）；贵州省 2018 年度高层次创新型人才培养-千层次人才项目
作者简介：王建航（1997—）男，硕士生，E-mail：736653542@qq.com。联系人：宝冬梅（1981—）女，教授，E-mail：dongtian1314521@
163.com。