填料处理剂对PLA/填料体系结构和性能的影响  

Effects of the Surface Treatment Agent to Filler on the Microstructure and Tensile Properties of PLA/Fillers Blends

作　　者：冯志豪[1] 魏芳[1] 邬昊杰 赵佳旭[1] 陈弦[1] 

机构地区：[1]四川大学高分子科学与工程学院,四川成都610065

出　　处：《塑料工业》2017年第8期117-120,共4页China Plastics Industry

摘　　要：将不同填料处理剂(聚己内酯、γ-氨丙基三乙氧基硅烷、一元醇和二元醇)与聚乳酸(PLA)/填料体系简单共混,制备了复合材料。利用万能电子拉伸机、扫描电子显微镜、差示扫描量热仪分析了填料处理剂及填料并用对PLA/填料体系结构和性能的影响。结果表明,不同的填料处理剂对PLA/填料复合材料的拉伸力学性能有不同的影响,而且一元醇的处理效果优于其他类型的处理剂。不同的填料并用对PLA填料复合材料拉伸力学性能影响较小。填料的加入促进了聚乳酸的结晶,降低了PLA的冷结晶温度,但对聚乳酸最终的结晶度和晶体结构没有影响。The effect of the surface treatment agents to filler and different fillers blended on the microstructure, and tensile properties of polylactic acid （ PLA）/fillers blends were studied by tensile tests, scanning electron microscope （SEM） and differential scanning calorimetry （DSC）. The results indicate that different surface treatment agents to filler have different effects on tensile properties of PLA/fillers blends, and monohydric alcohol is prior to others. The different fillers combination have less effect on tensile properties of PLA/fillers blends. The addition of filler promotes the crystallization of PLA and reduces the cold crystallization temperature of PLA, but it has no effect on the crystallinity and crystal structure.

关 键 词：聚乳酸 填料 增韧 

分 类 号：TB332[一般工业技术—材料科学与工程] TQ323.4[化学工程—合成树脂塑料工业]