期刊
POLYMER DEGRADATION AND STABILITY
卷 94, 期 1, 页码 132-138出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.polymdegradstab.2008.09.004
关键词
Nano-structure; Mechanical properties; Thermal analysis; X-ray Differaction; DMA
Polypropylene/surface modified clay nanocomposites were prepared by melt intercalation in twin-screw extruder followed by blown film extrusion. The effects of organically modified clay on the physical, mechanical, thermal and morphological properties of the prepared nanocomposites were studied. The results showed that 95% enhancement in tensile strength and 152% increase in tensile modulus was observed. TGA analysis in inert atmosphere showed an 87 C marked increase in the thermal degradation temperature. The DSC curve showed the melting point was increased 4 degrees C in presence of clay in the matrix owing to the fact that the filler acts as reinforcing effect. The dynamic mechanical analysis (DMA) results showed improvement in storage modulus from 9.76 x 10(3) to 1.12 x 10(4) MPa with the incorporation of organically modified clay and thus enhanced its stiffness. The morphology of the nanocomposites was further studied using scanning electron microscopy (SEM). The X-ray diffraction (XRD) and transmission electron microscopy (TEM) which confirmed the exfoliation structure of the nanocomposites. (C) 2008 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据