氨基三甲基膦酸钴和可膨胀石墨改性硬质聚氨酯泡沫塑料的阻燃性和热稳定性研究

IF 1.1 4区工程技术 Q4 ENGINEERING, CHEMICAL

International Polymer Processing Pub Date : 2023-02-15 DOI:10.1515/ipp-2022-4250

Bing Liu, Xu Zhang, Dehe Yuan, Zhi Wang, Hua Xie

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引用次数: 0

摘要

摘要采用离子交换法制备了氨基三甲基膦酸钴（Co2+-ATM P）阻燃剂，并采用一锅法和自由上升法制备了由Co2+-ATP和可膨胀石墨（EG）改性的硬质聚氨酯泡沫（RPUF）。通过极限氧指数（LOI）、锥形量热计（cone）、热重分析（TG）和烟雾毒性表征，研究了改性RPUF的阻燃性、热稳定性和烟雾毒性。结果表明，Co2+-ATMP和EG改性的RPUF的阻燃性、热稳定性和烟毒性均有显著提高。当Co2+-AMP与EG的比例为1:5时，LOI值最高，烟气毒性最低。峰值放热率（PHRR）和总放热率（THR）均最低，分别为138kW/m2和15.9MJ/m2。与RPUF-0相比，分别下降了39.2%和16.8%。研究结果可为RPUF的后续阻燃改性提供参考。

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Study on flame retardancy and thermal stability of rigid polyurethane foams modified by amino trimethylphosphonate cobalt and expandable graphite

Abstract Amino trimethylphosphonate cobalt (Co2+-ATMP) flame retardant was prepared by ion exchange method, and rigid polyurethane foam (RPUF) modified by Co2+-ATMP and expandable graphite (EG) was prepared by one-pot and free-rise method. The flame retardancy, thermal stability and smoke toxicity of modified RPUF were studied by limiting oxygen index (LOI), cone calorimeter (Cone), thermogravimetric analysis (TG) and smoke toxicity characterization. The results showed that the flame retardancy, thermal stability and smoke toxicity of RPUF modified by Co2+-ATMP and EG are significantly improved. When the ratio of Co2+-ATMP to EG is 1:5, the LOI value is the highest, and the toxicity of flue gas was the lowest. The peak heat release rate (PHRR) and total heat release rate (THR) were both the lowest, 138 kW/m2 and 15.9 MJ/m2, respectively. Compared with RPUF-0, it decreased by 39.2% and 16.8% respectively. The research results can provide reference for the subsequent flame retardant modification of RPUF.

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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.