Flame retardant polyester by combination of organophosphorus compounds and an NOR radical forming agent
Flame retardant polyester by combination of organophosphorus compounds and an NOR radical forming agent
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DOI：
10.1002/app.47876
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发表时间：
2019-05
影响因子：
3
通讯作者：
Daniela Goedderz;Lais Weber;D. Markert;Alexander Schiesser;C. Fasel;R. Riedel;V. Altstädt;C. Bethke;O. Fuhr;Florian Puchtler;J. Breu;M. Döring
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文献类型：
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作者：
Daniela Goedderz;Lais Weber;D. Markert;Alexander Schiesser;C. Fasel;R. Riedel;V. Altstädt;C. Bethke;O. Fuhr;Florian Puchtler;J. Breu;M. Döring
具有不同表面积与体积比的聚合物材料需要关于凝聚相和气相活性的不同阻燃剂机理。通过使用热重分析（TGA）、TG-质谱（MS）、TG-傅里叶变换红外（FTIR）、UL 94、锥形量热仪和扫描电子显微镜-能量色散X射线光谱仪测量，研究聚对苯二甲酸乙二醇酯（PET）中的阻燃剂配方的凝聚相和气相活性。通过使用由原位耦合到FTIR和MS的差热分析-TGA装置组成的同时分析来分析含有磷酸盐、膦酸盐和次膦酸盐作为阻燃剂的阻燃剂制剂。（3，9-双（苯氧基）-2，4，8，10-四氧杂-3，9-二磷杂螺-5，5-十一烷-3，9-二氧化物（SPDPP）和新合成的磷酸酯和含有阻燃剂3，9-双（苯氧基）-2，4，8，10-四氧杂-3，9-二磷杂螺-5，5-十一烷-3，9-氧化物的9，10-二氢-9-氧杂-10-磷杂菲10-氧化物的混合缩合和气相活性，5-十一烷-3，9-二氧化物（SPDPDOM）。PCO 910的燃烧性能可以通过添加O，O '-对苯二甲酰基-双-N，N'-萘二甲酰亚胺酯作为NOR自由基形成剂（NOR-RF）来改善，对于PET中的UL 94 V-0分类，两种活性剂的总量达到3重量%。
Polymer materials with different surface‐to‐volume ratios require different mechanisms of flame retardants regarding condensed phase and gas phase activity. The flame retardant formulations in poly(ethylene terephthalate) (PET) are investigated regarding a condensed phase and gas phase activity by using thermogravimetric analysis (TGA), TG‐mass spectrometry (MS), TG‐Fourier transform infrared (FTIR), UL94, cone calorimeter and scanning electron microscopy–energy‐dispersive X‐ray spectrometer measurements. The flame retardant formulations containing phosphates, phosphonates, and phosphinates as flame retardants are analyzed by using a simultaneous analysis consisting of a differential thermal analysis‐TGA device which is in situ coupled to FTIR and MS. All analysis methods show a gas phase activity for the phosphonate (PCO 910), a condensed phase activity for the phosphate (3,9‐bis(phenoxy)‐2,4,8,10‐tetraoxa‐3,9‐diphosphaspiro‐5,5‐undecane‐3,9‐dioxide, (SPDPP) and a mixed condensed and gas phase activity for the new synthesized phosphate and 9,10‐dihydro‐9‐oxa‐10‐phosphaphenanthrene 10‐oxide containing flame retardant 3,9‐bis(phenoxy)‐2,4,8,10‐tetraoxa‐3,9‐diphosphaspiro‐5,5‐undecane‐3,9‐dioxide (SPDPDOM). The fire behavior of PCO 910 can be improved by adding O,O'‐Terephthaloyl‐bis‐N,N'‐naphthalimide ester as NOR radical‐forming agent (NOR‐RF) reaching a total amount of 3 wt % of both active agents for a UL94 V‐0 classification in PET.