Wall Slip Effect on Shear-Induced Crystallization Behavior of Isotactic Polypropylene Containing beta-Nucleating Agent

Baojing Luo; Hongfei Li; Yao Zhang; Feifei Xue; Peipei Guan; Jing Zhao; Chengbo Zhou; Wenyang  Zhang; Jingqing Li; Hong Huo; Dean Shi; Donghong Yu; Shichun Jiang

doi:10.1021/ie502062k

Wall Slip Effect on Shear-Induced Crystallization Behavior of Isotactic Polypropylene Containing beta-Nucleating Agent

Baojing Luo, Hongfei Li, Yao Zhang, Feifei Xue, Peipei Guan, Jing Zhao, Chengbo Zhou, Wenyang Zhang, Jingqing Li, Hong Huo, Dean Shi, Donghong Yu, Shichun Jiang

Department of Chemistry and Bioscience

Research output: Contribution to journal › Journal article › Research › peer-review

21 Citations (Scopus)

Abstract

Shearing is unavoidable during the polymer process, and isotactic polypropylene (iPP) is one of the most used commercial polymers. iPP mixed with beta-nucleating agent TMB-5 was isothermally crystallized at 135 degrees C from melts under various shear conditions and investigated via synchrotron radiation small-angle and wide-angle X-ray scattering (SAXS and WAXS) techniques with CCD detector. The shear-induced crystalline structure and the orientation of the samples were studied according to the obtained WAXS and SAXS patterns. The results showed that both the crystallinity of alpha-iPP and beta-iPP are in direct proportion to the orientation degree rather than shear rate especially at high shear rate, which proves that wall slip should not be neglected when taking shear effect or rheological behavior into consideration.

Original language	English
Journal	Industrial & Engineering Chemistry Research
Volume	53
Issue number	34
Pages (from-to)	13513-13521
ISSN	0888-5885
DOIs	https://doi.org/10.1021/ie502062k
Publication status	Published - 27 Aug 2014

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@article{0c4a10b162f74cc59847cca884a5924f,

title = "Wall Slip Effect on Shear-Induced Crystallization Behavior of Isotactic Polypropylene Containing beta-Nucleating Agent",

abstract = "Shearing is unavoidable during the polymer process, and isotactic polypropylene (iPP) is one of the most used commercial polymers. iPP mixed with beta-nucleating agent TMB-5 was isothermally crystallized at 135 degrees C from melts under various shear conditions and investigated via synchrotron radiation small-angle and wide-angle X-ray scattering (SAXS and WAXS) techniques with CCD detector. The shear-induced crystalline structure and the orientation of the samples were studied according to the obtained WAXS and SAXS patterns. The results showed that both the crystallinity of alpha-iPP and beta-iPP are in direct proportion to the orientation degree rather than shear rate especially at high shear rate, which proves that wall slip should not be neglected when taking shear effect or rheological behavior into consideration.",

author = "Baojing Luo and Hongfei Li and Yao Zhang and Feifei Xue and Peipei Guan and Jing Zhao and Chengbo Zhou and Wenyang Zhang and Jingqing Li and Hong Huo and Dean Shi and Donghong Yu and Shichun Jiang",

year = "2014",

month = aug,

day = "27",

doi = "10.1021/ie502062k",

language = "English",

volume = "53",

pages = "13513--13521",

journal = "Industrial & Engineering Chemistry Research",

issn = "0888-5885",

publisher = "American Chemical Society",

number = "34",

}

TY - JOUR

T1 - Wall Slip Effect on Shear-Induced Crystallization Behavior of Isotactic Polypropylene Containing beta-Nucleating Agent

AU - Luo, Baojing

AU - Li, Hongfei

AU - Zhang, Yao

AU - Xue, Feifei

AU - Guan, Peipei

AU - Zhao, Jing

AU - Zhou, Chengbo

AU - Zhang, Wenyang

AU - Li, Jingqing

AU - Huo, Hong

AU - Shi, Dean

AU - Yu, Donghong

AU - Jiang, Shichun

PY - 2014/8/27

Y1 - 2014/8/27

N2 - Shearing is unavoidable during the polymer process, and isotactic polypropylene (iPP) is one of the most used commercial polymers. iPP mixed with beta-nucleating agent TMB-5 was isothermally crystallized at 135 degrees C from melts under various shear conditions and investigated via synchrotron radiation small-angle and wide-angle X-ray scattering (SAXS and WAXS) techniques with CCD detector. The shear-induced crystalline structure and the orientation of the samples were studied according to the obtained WAXS and SAXS patterns. The results showed that both the crystallinity of alpha-iPP and beta-iPP are in direct proportion to the orientation degree rather than shear rate especially at high shear rate, which proves that wall slip should not be neglected when taking shear effect or rheological behavior into consideration.

AB - Shearing is unavoidable during the polymer process, and isotactic polypropylene (iPP) is one of the most used commercial polymers. iPP mixed with beta-nucleating agent TMB-5 was isothermally crystallized at 135 degrees C from melts under various shear conditions and investigated via synchrotron radiation small-angle and wide-angle X-ray scattering (SAXS and WAXS) techniques with CCD detector. The shear-induced crystalline structure and the orientation of the samples were studied according to the obtained WAXS and SAXS patterns. The results showed that both the crystallinity of alpha-iPP and beta-iPP are in direct proportion to the orientation degree rather than shear rate especially at high shear rate, which proves that wall slip should not be neglected when taking shear effect or rheological behavior into consideration.

U2 - 10.1021/ie502062k

DO - 10.1021/ie502062k

M3 - Journal article

SN - 0888-5885

VL - 53

SP - 13513

EP - 13521

JO - Industrial & Engineering Chemistry Research

JF - Industrial & Engineering Chemistry Research

IS - 34

ER -

Wall Slip Effect on Shear-Induced Crystallization Behavior of Isotactic Polypropylene Containing beta-Nucleating Agent

Abstract

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