PBS/DOPO/g-C3N4复合材料阻燃及流变性能研究
Study on Flame Retardant and Rheological Properties of PBS/DOPO/g-C3N4 Composites
翟庆龙 1何伟 1颛孙梦林 1王义燃1
作者信息
- 1. 沈阳化工大学材料科学与工程学院,辽宁沈阳 110142
- 折叠
摘要
通过熔融法将PBS和DOPO/g-C3N4混合,制备了 PBS/DOPO/g-C3N4共混复合材料,采用氧指数仪、红外光谱仪、高级旋转流变仪等对复合材料性能进行研究.结果表明:随着体系中DOPO/g-C3N4质量分数的增大,氧指数由22提升至25以上,垂直燃烧等级由无等级提升至V-1、V-0等级,可见DOPO/g-C3N4的加入提高了 PBS的阻燃性能;当PBS中加入DOPO/g-C3N4后,复合熔体由剪切变稀转变为剪切变稠,复合熔体属于典型的非牛顿流体,随着温度升高,其表观黏度变小;PBS/DOPO/g-C3N4熔体的非牛顿指数随着DOPO/g-C3N4质量分数的增加而提高,当DOPO/g-C3N4质量分数为10％时,非牛顿指数趋近于1.0.
Abstract
PBS/DOPO/g-C3N4 blend composites were prepared by mixing polybutylene succinate(PBS)and DOPO/g-C3N4 through melting method.The properties of the composites were studied by oxygen index instrument,infrared spectrometer and advanced rotational rheometer.The results showed that as the mass fraction of DOPO/g-C3N4 in the system increased,the oxygen index increased from 22 to above 25,and the vertical combustion grade increased from non-grade to V-1 and V-0 grades.It can be seen that the addition of DOPO/g-C3N4 improved the flame retardant performance of PBS,with DOPO/g-C3N4 being added to PBS,the composite melt changed from shear thinning to shear thicken-ing.The composite melt was a typical non-Newtonian fluid.The apparent viscosity deceased as the temperature increased.The non-Newtonian index of the PBS/DOPO/g-C3N4 melt also increased with DOPO/g-C3N4 being introduced into the system.The non-Newtonian index approached to 1.0 when the ratio of DOPO/g-C3N4 was 10％.
关键词
聚丁二酸丁二醇酯/DOPO/g-C3N4/阻燃性能/非牛顿流体Key words
polybutylene succinate/DOPO/g-C3N4/flame retardant performance/non-new-tonian fluid引用本文复制引用
出版年
2024
NETL
NSTL
万方数据