硅烷偶联剂改性聚磷酸铵的制备及其阻燃热塑性聚氨酯弹性体的性能研究  

Preparation of Modified Ammonium Polyphosphate Using Silane Coupling Agent and Its Flame Retardancy in TPU

作　　者：王洪志[1] 焦传梅[1] WANG Hongzhi;JIAO Chuanmei(College of Environment and Safety Engineering,Qingdao University of Science and Technology,Qingdao 266042,China)

机构地区：[1]青岛科技大学环境与安全工程学院,山东青岛266042

出　　处：《青岛科技大学学报（自然科学版）》2018年第5期85-93,共9页Journal of Qingdao University of Science and Technology:Natural Science Edition

基　　金：国家自然科学基金项目(51106078;51206084)

摘　　要：采用硅烷偶联剂KH550(AMEO)无水条件下改性聚磷酸铵(APP),并用于阻燃热塑性聚氨酯弹性体(TPU)。通过扫描电镜-能谱分析(SEM-EDS)手段研究了APP@AMEO的结构与元素分布特点。并且通过锥形量热仪(CCT)、微型量热仪(MCC)、烟密度仪(SDT)和热重红外联用(TG-IR)等手段研究了阻燃TPU的燃烧和热降解性能。CCT结果表明:APP@AMEO能够明显降低TPU复合材料的热释放速率(HRR)、总热释放(THR),生烟速率(SPR)等,其中含有质量分数为12.5%APP@AMEO的TPU复合材料(TPU/APP-2)的HRR峰值比含相同含量APP的TPU复合材料(TPU/APP)的HRR峰值降低了8.7%。SDT结果表明:无焰条件下APP@AMEO能够使得TPU复合材料的光通量(LF)显著提高。TG-IR结果显示:APP@AMEO不仅能够显著提高TPU的热稳定性,而且能够降低有毒有害气体的生成。In this paper,the ammonium polyphosphate(APP)was modified by the silane coupling agent KH-550 without water and applied in flame retardant thermoplastic polyurethane(TPU).The structure and element distribution properties of APP@AMEO were characterized by SEM-EDS methods.And the combustion behavior and thermal degradation properties of TPU composites were investigated by cone calorimeter test(CCT),microscale combustion colorimeter test(MCC),smoke density test(SDT)and thermogravimetric anal-ysis/infrared spectrometry(TG-IR),respectively.The CCT results showed that the heat re-lease rate(HRR),total heat release(THR),and smoke production rate(SPR)of the TPU composite was significantly reduced by [e-mail],the peak HRR of the sample with 12.5%APP@AMEO(TPU/APP-2)was reduced by 8.7%compared with the sample with the same loading of APP(TPU/APP).The SDT results indicated that APP@AMEO could greatly improve the luminous flux(LF)of TPU composites in the test without flame.TG-IR data revealed that APP@AMEO could not only improve the thermal stability of TPU,but also reduce the production of some toxic and hazardous gases.In conclusion,APP@AMEO will have a good application prospect in the field of flame retardant.

关 键 词：硅烷偶联剂KH550 聚磷酸铵 热塑性聚氨酯弹性体 阻燃 

分 类 号：TQ328[化学工程—合成树脂塑料工业]