PBS/DOPO/g-C3N4复合材料阻燃及流变性能研究

doi:10.3969/j.issn.2095-2198.2024.02.008

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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.

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关键词: 聚丁二酸丁二醇酯')" href="#">

聚丁二酸丁二醇酯 DOPO/g-C₃N₄ 阻燃性能非牛顿流体

Abstract:

PBS/DOPO/g-C₃N₄blend composites were prepared by mixing polybutylene succinate (PBS) and DOPO/g-C₃N₄through 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-C₃N₄in 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 thickening. 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-C₃N₄melt 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-C₃N₄was 10%.

Key words: polybutylene succinate')" href="#">

polybutylene succinate DOPO/C₃N₄ flame retardant performance non-newtonian fluid

出版日期: 2024-04-30 发布日期: 2025-01-02 整期出版日期: 2024-04-30

基金资助:

国家自然科学基金(51703134)；辽宁省重点研发计划(2019JH2/10100003)；国家重点研发计划(2020YFC1909300)

通讯作者: 何伟

作者简介: 翟庆龙(1998—)，男，黑龙江宝清人，硕士研究生在读，主要从事新型碳材料对高分子材料的阻燃及流变性能影响的研究.

引用本文:

翟庆龙, 何伟, 颛孙梦林, 王义燃.

PBS/DOPO/g-C₃N₄复合材料阻燃及流变性能研究 [J]. 沈阳化工大学学报, 2024, 38(2): 141-148.
ZHAI Qinglong, HE Wei, ZHUANSUN Menglin, WANG Yiran.

Study on Flame Retardant and Rheological Properties of PBS/DOPO/g-C₃N₄ Composites . Journal of Shenyang University of Chemical Technology, 2024, 38(2): 141-148.

链接本文:

https://xuebao.syuct.edu.cn/CN/10.3969/j.issn.2095-2198.2024.02.008 或 https://xuebao.syuct.edu.cn/CN/Y2024/V38/I2/141

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