The influence of rare earth ions on the rheological behavior of polyamide
文献类型：期刊论文
| 作者 | Sang, Xin-xin1,2; Zhang, Jing-nan1; Ke, Yu-cai1; Cao, Xin-yu1; Ma, Yong-mei1; Wang, Fosong1 |
| 刊名 | CHINESE JOURNAL OF POLYMER SCIENCE
 |
| 出版日期 | 2015-10-01 |
| 卷号 | 33期号:10页码:1453-1461 |
| 关键词 | Rheology PA66-lanthanum acetate blends Polymer-metal interaction Coordination Viscoelastic solid behavior |
| 英文摘要 | The polyamide 66 (PA66)/lanthanum acetate blends with small amounts of salt loadings (a parts per thousand currency sign 1 wt% of PA) have been prepared in a twin-screw extruder. The rheology of PA66 and its blends has been investigated by a rotational rheometer. The results suggested that with the salt loading in excess of 0.2 wt% the typical Newtonian viscosity plateau disappeared and both the low-frequency complex viscosities eta* and storage modulus G' of blends were much higher than those of neat PA66, the storage modulus was higher than the loss modulus at low frequencies (tan delta < 1), i.e., the melt changed from a viscoelastic liquid for unfilled polymer to a viscoelastic solid (G' > GaEuro(3)). While the viscosity followed a strong shear thinning with increasing frequency, the eta* and G' decreased significantly even lower than those of neat PA66 at high frequencies. The combination of dynamic mechanical analysis (DMA) and X-ray photoelectron spectroscopy (XPS) analysis has revealed that coordination effect occurred between lanthanum and carbonyl oxygen atoms in amide groups of the polymer to form pseudocrosslinked network structure, which makes the glass transition temperatures (T (g)) and storage modulus (E') of blends enhanced. The network structure formation-destruction and chains entanglement-disentanglement processes at different frequencies are responsible for the above rheological behaviors of blends. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/27718]  |
| 专题 | 化学研究所_绿色印刷实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Key Lab Green Printing, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sang, Xin-xin,Zhang, Jing-nan,Ke, Yu-cai,et al. The influence of rare earth ions on the rheological behavior of polyamide[J]. CHINESE JOURNAL OF POLYMER SCIENCE,2015,33(10):1453-1461. |
| APA | Sang, Xin-xin,Zhang, Jing-nan,Ke, Yu-cai,Cao, Xin-yu,Ma, Yong-mei,&Wang, Fosong.(2015).The influence of rare earth ions on the rheological behavior of polyamide.CHINESE JOURNAL OF POLYMER SCIENCE,33(10),1453-1461. |
| MLA | Sang, Xin-xin,et al."The influence of rare earth ions on the rheological behavior of polyamide".CHINESE JOURNAL OF POLYMER SCIENCE 33.10(2015):1453-1461. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。