三氧化钼对阻燃硬质聚氨酯泡沫塑料的抑烟研究

doi:10.19491/j.issn.1001-9278.2014.10.003

中国塑料 ›› 2014, Vol. 28 ›› Issue (10): 14-18 .DOI: 10.19491/j.issn.1001-9278.2014.10.003

三氧化钼对阻燃硬质聚氨酯泡沫塑料的抑烟研究

刘秀¹,许冬梅²,张华荣³,郝建薇¹,周友⁴

1. 北京理工大学材料学院2. 北京理工大学，北京航天试验技术研究所3. 宝胜科技创新股份有限公司4. 北京理工大学

收稿日期:2014-05-29 修回日期:2014-08-08 出版日期:2014-10-26 发布日期:2014-10-26

Effect of MoO3 on Smoke Suppression of Flame Retardant Rigid Polyurethane Foam

Received:2014-05-29 Revised:2014-08-08 Online:2014-10-26 Published:2014-10-26

摘要/Abstract

摘要： The effect of molybdenum trioxide (MoO3) on smoke suppression of rigid polyurethane foam (RPUF) filled with expandable graphite and ammonium polyphosphate was studied by smoke density test, limiting oxygen index, and horizontalvertical burning test. Meanwhile, the role of MoO3 in condensation phase was analyzed by thermal gravimetric analysis and X ray photoelectron spectroscopy. It was found that with a MoO3 loading of 4 parts per hundred polyol, the maximum smoke density of the RPUF was reduced by 22 %, the amount of residual char was increased from 8.0 % to 16.2 % at 835 ℃. The reason was that MoO3 can promote the cross linking of RPUF to form char and retain more phosphorus containing compounds in condensation phase.

关键词: 硬质聚氨酯, 泡沫, 三氧化钼, 抑烟, 阻燃

Abstract: The effect of molybdenum trioxide (MoO3) on smoke suppression of rigid polyurethane foam (RPUF) filled with expandable graphite and ammonium polyphosphate was studied by smoke density test, limiting oxygen index, and horizontal-vertical burning test. Meanwhile, the role of MoO3 in condensation phase was analyzed by thermal gravimetric analysis and X ray photoelectron spectroscopy. It was found that with a MoO3 loading of 4 parts per hundred polyol, the maximum smoke density of the RPUF was reduced by 22 %, the amount of residual char was increased from 8.0 % to 16.2 % at 835 ℃. The reason was that MoO3 can promote the cross linking of RPUF to form char and retain more phosphorus containing compounds in condensation phase.

Key words: rigid polyurethane, foam, molybdenum trioxide, smoke suppression, flame retardant

刘秀, 许冬梅, 张华荣, 郝建薇, 周友. 三氧化钼对阻燃硬质聚氨酯泡沫塑料的抑烟研究[J]. 中国塑料, 2014, 28(10): 14-18 .

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三氧化钼对阻燃硬质聚氨酯泡沫塑料的抑烟研究

Effect of MoO3 on Smoke Suppression of Flame Retardant Rigid Polyurethane Foam

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