Degradation and rheological properties of biodegradable nanocomposites prepared by melt intercalation method

被引:0
作者
Su Kyong Lee
Dong Gi Seong
Jae Ryoun Youn
机构
[1] Seoul National University,School of Materials Science and Engineering
来源
Fibers and Polymers | 2005年 / 6卷
关键词
Nanocomposite; Melt intercalation; Layered silicate; Rheological properties; Biodegradability;
D O I
暂无
中图分类号
学科分类号
摘要
Biodegradable nanocomposites were prepared by mixing a polymer resin and layered silicates by the melt intercalation method. Internal structure of the nanocomposite was characterized by using the small angle X-ray scattering (SAXS) and transmission electron microscope (TEM). Nanocomposites having exfoliated and intercalated structures were obtained by employing two different organically modified nanoclays. Rheological properties in shear and extensional flows and biodegradability of nanocomposites were measured. In shear flow, shear thinning behavior and increased storage modulus were observed as the clay loading increased. In extensional flow, strain hardening behavior was observed in well dispersed system. Nanocomposites with the exfoliated structure had better biodegradability than nanocomposites with the intercalated structure or pure polymer.
引用
收藏
页码:289 / 296
页数:7
相关论文
共 170 条
[1]  
Okada A.(1990)undefined MRS Symposium Proceedings 171 45-45
[2]  
Kawasumi M.(1993)undefined Chem. Mater. 5 1694-1694
[3]  
Usuki A.(2003)undefined Macromol. Mater. Eng. 288 203-203
[4]  
Kojima Y.(2003)undefined Chem. Mater. 15 1456-1456
[5]  
Kurauchi T.(2003)undefined Polymer 43 4017-4017
[6]  
Kamigaito O.(2002)undefined Polym. Eng. Sci. 42 1928-1928
[7]  
Vaia R. A.(2001)undefined e-Polymers 009 1-1
[8]  
Ishii H.(1997)undefined J. Appl. Polym. Sci. 64 2211-2211
[9]  
Giannelis E. P.(2002)undefined J. Appl. Polym. Sci. 86 676-676
[10]  
Sinha Ray S.(2002)undefined Macromolecules 35 3318-3318