摘要: 研究了表面改性对PVC/氢氧化铝复合体系性能的影响，通过热 重分析、扫描电镜等对超细活性氢氧化铝的阻燃和增强机理进行了分析。 结果表明，表面改性可以显著提高超细氢氧化铝填充 PVC 体系的综合性 能。 

关键词:氢氧化铝；表面改性；聚氯乙烯（PVC）；阻燃

Abstract: The effect of surface modifying on properties of PVC/Al(OH)₃system was investigated. The mechanism of flame-retardance and reinforce ment of ultra-fine and active Al(OH)₃ was analyzed by means of TGA and SEM. The results show that the surface modifying can evidently improve the over-all properties of PVC/Al(OH)₃ system. 

Keywords: aluminum hydroxide；surface modification；poly vinyl chloride (PVC)；flame-retardant