Al-Thabaiti Shaeel A, Ray Suprakas Sinha, Basahell Sulaiman Nassir, Mokhtar Mohamed
J Nanosci Nanotechnol. 2015 Mar;15(3):2312-6. doi: 10.1166/jnn.2015.9146.
This article reports the viscoelastic properties of poly[(butylene succinate)-co-adipate] (PBSA) nanocomposites. The nanocomposites of PBSA with various loadings of organically modified clay were prepared by melt-mixing in a batch-mixer. The solid and melt-state viscoelastic properties of neat PBSA and various nanocomposites were studied in detail. The dynamic mechanical studies demonstrated an increase in the storage modulus of PBSA matrix with organoclay loading. Melt-state rheological properties were found to be modified with organoclay loading changing from liquid-like, to gel-like and then viscoelastic solid-like. Such changes in viscoelastic properties along with the improvements in thermomechanical properties are expected to open opportunities for the use of PBSA extending its applications from the classical field of packaging to new niches such as tissue-engineering.
本文报道了聚（丁二酸丁二醇酯 - 共 - 己二酸酯）（PBSA）纳米复合材料的粘弹性特性。通过在间歇式混合器中熔融共混制备了具有不同有机改性粘土负载量的PBSA纳米复合材料。详细研究了纯PBSA和各种纳米复合材料的固态和熔融态粘弹性特性。动态力学研究表明，随着有机粘土负载量的增加，PBSA基体的储能模量增大。发现熔融态流变特性随着有机粘土负载量的变化而改变，从类液体状态变为类凝胶状态，然后变为粘弹性固体状态。粘弹性特性的这种变化以及热机械性能的改善有望为PBSA的应用开辟新机遇，将其应用从传统的包装领域扩展到组织工程等新领域。
