铝颜料经硅烷偶联剂KH570、正硅酸乙酯（TEOS）、聚甲基丙烯酸酯（PMMA）和聚丙烯酸酯（PMA）有机-无机复合包覆之后，与聚氯乙烯（PVC）及其他助剂通过熔融共混法制备出PA@SiO₂@Al/PVC复合材料。通过正交试验得到原位聚合包覆聚酯（PA）的最佳条件是：在80℃下加入0.5 g甲基丙烯酸甲酯（MMA）、0.5 g丙烯酸甲酯（MA）和0.01 g偶氮二异丁腈（AIBN），该条件下得到的PA@SiO₂@Al复合铝颜料的耐腐蚀性能最强，缓蚀效率高达100%。PA@SiO₂@Al/PVC复合材料的断裂伸长率、拉伸强度和硬度随着表面包覆效果的改善呈增大的趋势，可分别达到最佳值636.87%、12.03 MPa和84.7°，与未添加铝颜料的PVC材料相比分别提高123.82%、91.87%和15.71%。TG分析结果表明，PA@SiO₂@Al/PVC复合材料的耐热性能有一定提高。

PA@SiO₂@Al/PVC composites are prepared by melt blending PVC with other additives and aluminum pigment that are firstly coated by silane coupling agent (KH570),tetraethoxysilane (TEOS),polymethyl methacrylate (PMMA) and polymethyl acrylate (PMA).Through orthogonal tests,the optimal conditions for in-situ polymerization to coat with PA are gained that the adding amount of methyl methacrylate (MMA),methyl acrylate (MA) and azodiisobutyronitrile (AIBN) are 0.5 g,0.5 g and 0.01 g,respectively and the temperature is set at 80℃.PA@SiO₂@Al composite aluminum pigment coated under these conditions has the strongest corrosion resistance,with a corrosion inhibition efficiency as high as 100%.The elongation at break,tensile strength and hardness of PA@SiO₂@Al/PVC composite material exhibits a rising trend with the improvement of surface coating effect,achieving 636.87%,12.03 MPa and 84.7° respectively for the best value,which increases by 123.82%,91.87% and 15.71% compared with the PVC material without addition of composite aluminum pigment.TG analysis shows that the heat resistance of PA@SiO₂@Al/PVC composites is improved to a certain extent.

陈颖(1994-),女,硕士生,主要研究方向为铝颜料的表面改性研究,chenying6228@yeah.net