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The effect of polymer molar mass and silica nanoparticles on the rheological and mechanical properties of poly(Ε-caprolactone) nanocomposites
Nanocomposites ( IF 4.6 ) Pub Date : 2018-12-23 , DOI: 10.1080/20550324.2018.1534792
Maria Eriksson 1 , Ton Peijs 2 , Han Goossens 1
Affiliation  

The influence of nanosilica on the crystallization behavior, rheology and mechanical properties of poly(ε-caprolactone) (PCL) nanocomposites was investigated. It was found that the effect of nanofiller addition is dependent on the molar mass of the polymer matrix. For the higher molar mass matrix, a modest nucleation effect was observed, while in the lower molar mass matrices, this effect was absent. For the investigated range of filler contents, a modest increase in both modulus and ultimate tensile properties of the composites was observed. Lower molar mass matrices revealed voiding during deformation, which could be partly suppressed by the addition of nanofiller. The higher molar mass matrix showed no voiding in either the neat polymer or nanocomposite.



中文翻译:

聚合物摩尔质量和二氧化硅纳米颗粒对聚己内酯纳米复合材料流变和力学性能的影响

研究了纳米二氧化硅对聚(ε-己内酯)(PCL)纳米复合材料的结晶行为,流变学和力学性能的影响。发现纳米填料的添加效果取决于聚合物基质的摩尔质量。对于较高摩尔质量的基质,观察到适度的成核作用,而在较低摩尔质量的基质中则没有这种作用。对于所研究的填料含量范围,观察到复合材料的模量和极限拉伸性能均适度增加。较低的摩尔质量矩阵显示出变形期间的空隙,这可以通过添加纳米填料来部分抑制。较高摩尔质量的基质在纯聚合物或纳米复合材料中均未显示出空隙。

更新日期:2018-12-23
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