以三氯氧磷、乙二醇为原料,合成了双子磷酸酯表面活性剂,采用水热合成法制备了双子磷酸酯改性硼酸锌晶须。通过红外光谱、X射线衍射、核磁氢谱、扫描电镜和透射电镜等手段对双子磷酸酯和改性后硼酸锌晶须进行结构表征;用水接触角、活化指数等表征改性效果。将改性后的硼酸锌晶须与聚乙烯进行复配,制备成复合材料,考察复合材料的阻燃性能。结果表明:1%含量的双子磷酸酯具有良好的改性效果,硼酸锌晶须由亲水性向疏水性转变,水接触角达到159.8°,活化指数达到99.5%;复合材料的极限氧指数达到29.4%。
The gimini phosphate surfactant was synthesized by using phosphorus oxychloride and ethylene glycol as raw materials.The zinc borate whisker was modified with gemini phosphate by hydrothermal synthesis.The FT-IR,XRD,1H-NMR,SEM and TEM were used to characterize the gemini phosphate and the modified zinc borate whiskers.The Water contact angle and the activation index were used to characterize modification effect.The composite materials were prepared by polyethylene and zinc borate whiskers.The flame retardancy of the materials was investigated.The results showed that the 1% content of the geminitic phosphate had a good modification effect.The zinc borate whisker was changed from hydrophilic to hydrophobic.The water contact angle reached 159.8°.The activation index reached 99.5%.The limit oxygen index of the materials reached 29.4%.
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