Effect of β-nucleating agents on crystallization and melting behavior of isotactic polypropylene

2008 ◽  
Vol 108 (5) ◽  
pp. 3370-3379 ◽  
Author(s):  
Wenchang Xiao ◽  
Peiyi Wu ◽  
Jiachun Feng
Keyword(s):  
Isotactic Polypropylene ◽  
Melting Behavior ◽  
Nucleating Agents ◽  
Crystallization And Melting Behavior

Effect of compressed CO2 on crystallization and melting behavior of isotactic polypropylene

2003 ◽  
Vol 396 (1-2) ◽  
pp. 57-65 ◽  
Author(s):  
Manika Varma-Nair ◽  
Paul Y. Handa ◽  
Aspy K. Mehta ◽  
Pawan Agarwal
Keyword(s):  
Isotactic Polypropylene ◽  
Melting Behavior ◽  
Crystallization And Melting Behavior

scholarly journals Investigation on the Effects of MXene and β-Nucleating Agent on the Crystallization Behavior of Isotactic Polypropylene

Polymers ◽  
2021 ◽  
Vol 13 (17) ◽  
pp. 2931
Author(s):  
Wanxin Peng ◽  
Jian Kang ◽  
Xiuduo Song ◽  
Yue Zhang ◽  
Bo Hu ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Rare Earth ◽  
Isotactic Polypropylene ◽  
Crystallization Behavior ◽  
Nucleating Agent ◽  
Melting Behavior ◽  
Nucleating Agents ◽  
Structure And Morphology ◽  
Β Phase ◽  
Α Phase

The effects of MXene on the crystallization behavior of β-nucleated isotactic polypropylene (iPP) were comparatively studied. The commonly used MXene Ti3C2Tx was prepared by selective etching and its structure and morphology were studied in detail. Then MXene and a rare earth β-nucleating agent (NA) WBG-II were nucleated with iPP to prepare samples with different polymorphic compositions. The crystallization, melting behavior, and morphologies of neat iPP, iPP/MXene, iPP/WBG-II, and iPP/MXene/WBG-II were comparatively studied. The crystallization behavior analysis reveals that a competitive relationship exists between MXene and WBG-II when they were compounded as α and β nucleating agents. In the system, the β-nucleation efficiency (NE) of WBG-II is higher than α-NE of MXene. The β-phase has relatively low thermal stability and would transform to α-phase when cooled below a critical temperature.

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