Stretch-Induced Melting and Recrystallization of Polyethylene-Plasticizer Film Studied by In Situ X-Ray Scattering: A Thermodynamic Point of View

被引：8

作者：

Chen, Xiaowei ^{[1
]}

Zhang, Wenwen ^{[1
]}

Ye, Ke ^{[1
]}

Meng, Lingpu ^{[1
]}

Lv, Fei ^{[1
]}

Cao, Tian ^{[1
]}

Wan, Caixia ^{[1
]}

Chen, Xin ^{[1
]}

Li, Liangbin ^{[1
]}

机构：

[1] Univ Sci & Technol China, Anhui Prov Engn Lab Adv Funct Polymer Film, CAS Key Lab Soft Matter Chem, Natl Synchrotron Radiat Lab, Hefei 230026, Anhui, Peoples R China

来源：

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 2018年 / 56卷 / 22期

关键词：

Yielding; WAXS; SAXS; polyethylene; MOLECULAR-WEIGHT POLYETHYLENE; HIGH-DENSITY POLYETHYLENE; UNIVERSAL TESTING PLATFORM; SEMICRYSTALLINE POLYMERS; CRYSTALLINE POLYMERS; NEUTRON-SCATTERING; DRAWN FIBERS; ISOTACTIC POLYPROPYLENE; DEFORMATION MECHANISM; PHASE-TRANSFORMATION;

D O I：

10.1002/polb.24740

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

With in situ synchrotron radiation X-ray scattering, the structural alteration of polyethylene-plasticizer film during uniaxial stretching is studied at temperature far below melting point of crystal. By analyzing the evolution rule of structural parameters quantitatively, stretch-induced melting and recrystallization process is validated to be the underlying mechanism of plastic deformation for the system. The physical essence of stretch-induced melting is proved to be phase transition driven by elastic energy which originates from lattice deformation. Conversely, the recrystallization process is proved to be controlled by temperature; furthermore, the growth of lamellae during recrystallization is in perfect accordance with kinetic theory by Lauritzen and Hoffman. This study provides a quantitative understanding to the long-existing melting-recrystallization model from a thermodynamics point of view. (c) 2018 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2018, 56, 1521-1528

引用

页码：1521 / 1528

页数：8

共 71 条

[1] DEFORMATION PROCESSES IN THIN MELT-CAST FILMS OF HIGH-DENSITY POLYETHYLENE .2. DEFORMATION PROCESSES IN THE NON-EQUATORIAL REGIONS OF SPHERULITES [J].

ALLAN, P ;

BEVIS, M .

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1980, 41 (04) :555-572

[2]

Balta-Callejan F.J., 1970, J MACROMOL SCI, V4, P519

[3]

Brooks NWJ, 1998, J POLYM SCI POL PHYS, V36, P2177, DOI 10.1002/(SICI)1099-0488(19980915)36:12<2177::AID-POLB15>3.0.CO

[4]

2-X

[5] Deformation-Induced Phase Transitions in iPP Polymorphs [J].

Caelers, Harm J. M. ;

Troisi, Enrico M. ;

Govaert, Leon E. ;

Peters, Gerrit W. M. .

POLYMERS, 2017, 9 (10)

[6] Deformation and Failure Kinetics of iPP Polymorphs [J].

Caelers, Harm J. M. ;

Parodi, Emanuele ;

Cavallo, Dario ;

Peters, Gerrit W. M. ;

Govaert, Leon E. .

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 2017, 55 (09) :729-747

[7] Deformation mechanism of iPP under uniaxial stretching over a wide temperature range: An in-situ synchrotron radiation SAXS/WAXS study [J].

Chen, Xiaowei ;

Lv, Fei ;

Su, Fengmei ;

Ji, Youxin ;

Meng, Lingpu ;

Wan, Caixia ;

Lin, Yuanfei ;

Li, Xueyu ;

Li, Liangbin .

POLYMER, 2017, 118 :12-21

[8] Deformation behavior of isotactic polypropylene with oriented α- and β-crystals [J].

Chen, Yanhui ;

Xu, Bo ;

Yang, Haoqing ;

Zhang, Qiuyu ;

Li, Zhongming .

MATERIALS LETTERS, 2018, 219 :209-211

[9]

De Rosa C., 2006, PHYS REV LETT, V96, P4

[10] Plasticity/damage coupling in semi-crystalline polymers prior to yielding: Micromechanisms and damage law identification [J].

Detrez, F. ;

Cantournet, S. ;

Seguela, R. .

POLYMER, 2011, 52 (09) :1998-2008

← 1 2 3 4 5 6 7 8 →