PP/PA6/nano-CaCO_3三元复合材料的结晶行为  

Crystallization Behavior of PP/PA6/Nano-CaCO_3 Ternary Composites

作　　者：陈旭[1] 肖山[1] 王虎[1] 盛京[2] 丁会利[1] 

机构地区：[1]河北工业大学高分子材料科学与工程研究所,天津300130 [2]天津大学材料科学与工程系,天津300072

出　　处：《高分子材料科学与工程》2011年第2期45-49,共5页Polymer Materials Science & Engineering

摘　　要：通过应用偏光显微镜、广角X射线衍射、差示扫描量热(DSC)等手段分析和表征了PP/PA6/nano-CaCO3聚丙烯三元复合材料共混体系各组分对其结晶性能的影响。研究发现,PA6、nano-CaCO3对改性聚丙烯复合材料均有诱导成核结晶的作用,加入nano-CaCO3的复合材料的诱导结晶作用要高于加入PA6的复合材料,同时复合材料的结晶温度和结晶速率得到提高。改性后的复合材料结晶度都有不同程度的下降,其中PP/PA6/POE-g-MAH的结晶度为31.83%,PP/PA6/nano-CaCO3/POE-g-MAH的为33.83%。Polypropylene/polyamides-6（PP/PA6） and polypropylene/polyamides-6/nano-CaCO3（PP/PA6/nano-CaCO3） were prepared by simple melt-mixing.The influence of the various component on the crystallization property of PP/PA6/nano-CaCO3 ternary composites was investigated by means of polarised light microscopy（PLM）,wide angle X-ray scattering（WAXD） and differential scanning calorimetry（DSC）.The result shows that PA6 and nano-CaCO3 can induce the modified polypropylene composites into nuclear crystallization,the nucleaton of nano-CaCO3 is stronger than that of PA6,and also improve the composite materials crystallization temperature and crystallization rate.The crystallinity of modified composite material has decreased in different degree,the crystallinity of PP/PA6/POE-g-MAH is 31.83%,the crystallinity of PP/PA6/nano-CaCO3/POE-g-MAH is 33.83%.

关 键 词：聚丙烯 尼龙6 纳米碳酸钙 结晶行为 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]