|
|
[交流]
采用ARES流变仪研究石墨烯不饱和聚酯的β松弛和改变
|
The β-relaxation of poly (n-alkyl methacrylates) has been a research topic of interest for many years and it is important to study the shift and extent of the β-relaxation to understand its influence on mechanical properties. There has been much recent work to study the glass transition temperature change for graphene polymer nanocomposites such as graphene/PMMA. However, the influence of graphene on the β-relaxation of poly (n-alkyl methacrylates) has not been explored. Here we use an ARES Rheometer with a rectangular torsion fixture, to investigate the β-relaxation change of poly (ethylmethacrylate)/graphene oxide nanocomposites. The dynamic temperature ramp methodology ranged from -40 °C and 60 °C. Compared to the parallel plate experiment, rectangular torsion fixtures can avoid the slip of sample from the plates at low temperatures and reduce sample stiffness to give more accurate results. It was found that 0.12 v% graphene oxide can increase the β-relaxation temperature by 6 K but does not change the intensity and breadth of the β-relaxation. Interestingly, a 15 K increase in the glass transition temperature was also observed, which implies that graphene oxide can split glass transition and β-relaxations. |
» 本帖附件资源列表
-
欢迎监督和反馈：小木虫仅提供交流平台，不对该内容负责。
本内容由用户自主发布，如果其内容涉及到知识产权问题，其责任在于用户本人，如对版权有异议，请联系邮箱：xiaomuchong@tal.com
- 附件 1 : 采用ARES流变仪去研究石墨烯不饱和聚酯的β松弛的改变.pdf
2016-07-04 14:44:10, 299.23 K
» 猜你喜欢
售SCI-T0P文章，我:8O.5.5.1.O.54,科目齐全,可+急
已经有3人回复
-
售SCI一区T0P文章，我:8.O.55.1.O54,科目全,可伽急
已经有4人回复
-
售SCI一区文章，我:8O5.5.1.O5.4,科目全,可伽急
已经有4人回复
-
让我中一个面上吧！
已经有15人回复
-
2026年的国家社科基金项目通讯评审的新规则与新动向、新挑战
已经有5人回复
-
售SCI一区文章，我:8O5.5.1.O5.4,科目全,可伽急
已经有3人回复
-
售SCI一区T0P文章，我:8.O.55.1.O.5.4,科目全,可+急
已经有5人回复
-
售SCI一区T0P文章，我:8O.55.1.O.5.4,科目齐全,可+急
已经有6人回复
-
售SCI一区T0P文章，我:8.O.55.1.O.54,科目齐全,可+急
已经有4人回复
-
售SCI一区T0P文章，我:8.O.55.1.O.5.4,科目全,可+急
已经有6人回复
|
回复此楼
