Influence of glycerol on morphology and properties of polylactide/montmorillonite nanocomposites

被引：6

作者：

Beauvalet, Mariana S. ^{[1
]}

Mota, Fabio F. ^{[1
]}

Soares, Rosane M. D. ^{[2
]}

Oliveira, Ricardo V. B. ^{[2
]}

机构：

[1] Braskem SA, Polo Petroquim 3, BR-95853000 Triunfo, RS, Brazil

[2] Univ Fed Rio Grande do Sul, Dept Quim Organ, Inst Quim, BR-91501970 Porto Alegre, RS, Brazil

来源：

POLYMER BULLETIN | 2013年 / 70卷 / 06期

关键词：

Nanostructure; Polymer-matrix nanocomposites; Mechanical testing; Extrusion; PLASTICIZED POLYLACTIDE/CLAY NANOCOMPOSITES; ORGANO-MODIFICATION; THERMAL-PROPERTIES; FILLER CONTENT; PLA; MONTMORILLONITE; POLYMERIZATION; COMPOSITES; FILMS; FIRE;

D O I：

10.1007/s00289-012-0884-x

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The widespread use of polymers from renewable sources is currently unachievable, not only by economic constraints but by the limiting properties of this type of material. Several strategies have been developed to overcome this problem; one of the most extensively explored is the use of nanofillers to improve the biopolymer's properties such as stiffness, impact strength and gas barrier, amongst others. However, several gaps in understanding the morphology formation of these systems still exist. This study evaluates the use of glycerol as an auxiliary additive during production of polylactide/montmorillonite nanocomposites. In this study, the presence of glycerol seems to influence the nanocomposites' morphology, influencing the clay exfoliation in some cases, and the mechanical properties. On the other hand, the presence of glycerol seems to induce a greater molecular weight reduction during twin screw extrusion.

引用

页码：1863 / 1873

页数：11

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