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Polydimethylsiloxane wrapped aluminum diethylphosphinate for enhancing the flame retardancy of polyamide 6
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2020-02-06 , DOI: 10.1002/app.49027 Ying Pan 1 , Lei Song 2 , Weiming Wang 3 , Hongting Zhao 1
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2020-02-06 , DOI: 10.1002/app.49027 Ying Pan 1 , Lei Song 2 , Weiming Wang 3 , Hongting Zhao 1
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Aluminum diethylphosphinate (ADP) was wrapped with polydimethylsiloxane (PDMS) by a facile method to improve its hydrophobic properties. The morphology and properties of PDMS‐modified ADP (PDMS‐ADP) were investigated by thermogravimetric analysis, scanning electron microscopy, energy‐dispersive X‐ray spectroscopy, and water contact angle tests. The water contact angle of PDMS‐ADP was increased from 126° to 151° as compared with that of ADP, which indicates that PDMS‐ADP showed good hydrophobic properties. Then, ADP and PDMS‐ADP were introduced into polyamide 6 (PA6) matrices to study the flame retardancy of the composites. The flammability of the PA6/ADP and PA6/PDMS‐ADP composites was much lower than that of pure PA6. The composites PA6‐1 (with the addition of 15 wt% ADP) and PA6‐4 (with the addition of 12 wt% PDMS‐ADP) could pass the UL‐94 V‐0 in the vertical burning test. Meanwhile, the peak heat release rates of PA6‐1 and PA6‐4 were 212 and 192 kW/m2, with reductions of 67.3 and 70.4%, respectively, compared with pure PA6. These results indicated that the coating of PDMS could enhance the flame‐retardant efficiency of ADP.
中文翻译：
聚二甲基硅氧烷包裹的二乙基次膦酸铝可增强聚酰胺6的阻燃性
通过简便的方法将二乙基次膦酸铝（ADP）用聚二甲基硅氧烷（PDMS）包裹，以改善其疏水性。通过热重分析，扫描电子显微镜，能量色散X射线光谱和水接触角测试研究了PDMS改性ADP（PDMS-ADP）的形态和性能。与ADP相比，PDMS‐ADP的水接触角从126°增加到151°，这表明PDMS‐ADP具有良好的疏水性。然后，将ADP和PDMS-ADP引入聚酰胺6（PA6）基质中，以研究复合材料的阻燃性。PA6 / ADP和PA6 / PDMS-ADP复合材料的可燃性远低于纯PA6。复合材料PA6-1-1（添加了15 wt％的ADP）和PA6-4（添加了12 wt％的PDMS-ADP）在垂直燃烧测试中可以通过UL-94 V-0。同时，PA6-1和PA6-4的峰值放热率分别为212和192 kW / m2，与纯PA6相比分别减少了67.3和70.4％。这些结果表明，PDMS涂层可以提高ADP的阻燃效率。
更新日期：2020-02-06
中文翻译：
聚二甲基硅氧烷包裹的二乙基次膦酸铝可增强聚酰胺6的阻燃性
通过简便的方法将二乙基次膦酸铝（ADP）用聚二甲基硅氧烷（PDMS）包裹，以改善其疏水性。通过热重分析，扫描电子显微镜，能量色散X射线光谱和水接触角测试研究了PDMS改性ADP（PDMS-ADP）的形态和性能。与ADP相比，PDMS‐ADP的水接触角从126°增加到151°，这表明PDMS‐ADP具有良好的疏水性。然后，将ADP和PDMS-ADP引入聚酰胺6（PA6）基质中，以研究复合材料的阻燃性。PA6 / ADP和PA6 / PDMS-ADP复合材料的可燃性远低于纯PA6。复合材料PA6-1-1（添加了15 wt％的ADP）和PA6-4（添加了12 wt％的PDMS-ADP）在垂直燃烧测试中可以通过UL-94 V-0。同时，PA6-1和PA6-4的峰值放热率分别为212和192 kW / m2，与纯PA6相比分别减少了67.3和70.4％。这些结果表明，PDMS涂层可以提高ADP的阻燃效率。
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