制造具有更好热稳定性和阻燃性能的可膨胀石墨和大豆油基协同改性聚氨酯泡沫塑料

IF 1.1 4区工程技术 Q4 ENGINEERING, CHEMICAL

International Polymer Processing Pub Date : 2023-11-28 DOI:10.1515/ipp-2023-4446

Xu Zhang, Zhaoqian Wang, Simiao Sun, Yiming Wang, Zhi Wang, Hua Xie

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引用次数: 0

摘要

摘要采用可膨胀石墨（EG）改性和制备了生物质大豆油基多元醇硬质聚氨酯泡沫（RPUF）。通过热重分析、热解动力学分析、锥形量热仪和烟气毒性分析，研究了 EG 对大豆油基多元醇硬质聚氨酯泡沫热稳定性和阻燃性能的影响。结果表明，EG 含量为 20 wt% 的改性 RPUF（RPUF-4）具有最高的初始温度和终止温度、最高的活化能 E、最低的 Ds（17.6）和最高的透光率（73.6%）。同时，RPUF-4 的热释放率最低（10.1 和 16.5 kW/m2），总热释放量最低（1.5 和 2.1 MJ/m2），平均有毒气体排放量最低。本次研究表明，RPUF-4 具有更好的热稳定性和阻燃性能，为后续生物质阻燃改性 RPUF 提供了有益的参考。

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Fabrication of expandable graphite and soybean oil-based synergistic modified polyurethane foam with improved thermal stability and flame retardant properties

Abstract Biomass soybean oil-based polyol rigid polyurethane foam (RPUF) was modified and prepared by expandable graphite (EG). The effects of EG on the thermal stability and flame retardant properties of soybean oil-based polyol RPUFs were investigated by thermogravimetric analysis, pyrolysis kinetic analysis, conical calorimetry and flue gas toxicity analysis. The results showed that modified RPUF (RPUF-4) with EG content of 20 wt% had the highest initial and end temperatures, the highest activation energy E, the lowest Ds (17.6), and the highest light transmittance (73.6 %). At the same time, RPUF-4 had the lowest heat release rate (10.1 and 16.5 kW/m2), the lowest total heat release (1.5 and 2.1 MJ/m2), and the lowest average toxic gas emissions. The current study indicated that RPUF-4 had better thermal stability and flame retardant performance, which provided a useful reference for subsequent biomass flame retardant modified RPUFs.

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来源期刊

International Polymer Processing 工程技术-高分子科学

CiteScore

2.20

自引率

7.70%

发文量

审稿时长

6 months

期刊介绍： International Polymer Processing offers original research contributions, invited review papers and recent technological developments in processing thermoplastics, thermosets, elastomers and fibers as well as polymer reaction engineering. For more than 25 years International Polymer Processing, the journal of the Polymer Processing Society, provides strictly peer-reviewed, high-quality articles and rapid communications from the leading experts around the world.