Poly(butylene succinate) bionanocomposites: a novel bio-organo-modified layered double hydroxide for superior mechanical properties

被引:27
作者
Totaro, G. [1 ]
Sisti, L. [1 ]
Celli, A. [1 ]
Askanian, H. [2 ]
Verney, V. [2 ]
Leroux, F. [2 ]
机构
[1] Univ Bologna, Dipartimento Ingn Civile Chim Ambientale & Mat, Via Terracini 28, I-40131 Bologna, Italy
[2] Univ Clermont Ferrand, ICCF, UMR 6296, 24 Ave Landais, F-63177 Aubiere, France
来源
RSC ADVANCES | 2016年 / 6卷 / 06期
关键词
FOOD-PACKAGING APPLICATIONS; SILICATE NANOCOMPOSITES; ANIONIC CLAYS; POLYMER; COMPOSITES; BIODEGRADABILITY; INTERCALATION; RHEOLOGY;
D O I
10.1039/c5ra24031j
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Bionanocomposites based on poly(butylene succinate) and a novel organo-modified layered double hydroxide have been prepared by in situ polymerization. In order to enhance the compatibilization of the inorganic filler with the polymer matrix, an oligomer of PBS was intercalated between the layers of the clay. Composites with different percentages of filler (1, 3, 5, 10 wt%) and two different divalent cations (Zn or Mg) were prepared. The thermal, rheological and mechanical properties of the samples were investigated. The results showed that the materials feature a high thermal stability, more specifically so for the composites containing Zn2+ cations. Rheological investigations highlighted a significant chain extender effect of the filler toward the matrix, thus revealing a huge reinforcing effect imparted by the clays, especially for composites with Mg2+ cations. Such findings were also supported by an increase up to 30% of the tensile and flexural strength for a PBS composite loaded with 3 wt% of Mg/Al-LDH, thus suggesting a uniform level of dispersion and a pronounced interfacial interaction between the filler and polymer.
引用
收藏
页码:4780 / 4791
页数:12
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