Online citations, reference lists, and bibliographies.
← Back to Search

Annealing Induced Microstructure And Fracture Resistance Changes In Isotactic Polypropylene/ethylene‐octene Copolymer Blends With And Without β‐phase Nucleating Agent

Xiaoxi Li, Haiyan Wu, L. Han, T. Huang, Y. Wang, H. Bai, Z. Zhou
Published 2010 · Materials Science

Save to my Library
Download PDF
Analyze on Scholarcy
Share
Previous work showed that annealing induced the great improvement of fracture resistance of β-iPP, relating to the decreased number of chain segments in the amorphous region. To further prove the rationality of this observation, in this work, the ethylene-octene copolymer (POE) toughened isotactic polypropylene (iPP) blends with or without β-phase nucleating agent (β-NA) were adopted and the changes of microstructure and fracture resistance during the annealing process were further investigated comparatively. The results showed that, whether for the α-phase crystalline structure (non-nucleated) or for the β-phase crystalline structure (β-NA nucleated) in iPP matrix, annealing can induce the dramatic improvement of fracture resistance at a certain annealing temperature (120–140 °C for β-NA nucleated blends whereas 120–150 °C for non-nucleated blends). Especially, non-nucleated blends exhibit more apparent variations in fracture resistance compared with β-NA nucleated blends during the annealing process. The phase morphology of elastomer, supermolecular structure of matrix, the crystalline structure including the degree of crystallinity and the relative content of β-phase, and the relaxation of chain segments were investigated to explore the toughening mechanism of the samples after being annealed. It was proposed that, even if the content of elastomer is very few, the excellent fracture resistance can be easily achieved through adjusting the numbers of chain segments in the amorphous phase by annealing. © 2010 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys, 2010
This paper references
10.1021/MA000686F
Lamellar Thickening in Isotactic Polypropylene with High Tacticity Crystallized at High Temperature
P. Maiti (2000)
10.1016/S0032-3861(99)00214-1
Polypropylene–rubber blends: 3. The effect of the test speed on the fracture behaviour
A. V. D. Wal (1999)
10.1007/S002890050372
AFM study of lamellar thickness distributions in high temperature melt-crystallization of β-polypropylene
D. Trifonova (1998)
10.1002/MACP.1964.020750113
Crystalline forms of isotactic polypropylene
A. T. Jones (1964)
10.1016/S0032-3861(03)00438-5
Brittle–ductile transition of PP/POE blends in both impact and high speed tensile tests
J. Yang (2003)
10.1016/S0032-3861(98)00504-7
Isotactic polypropylene/ethylene-co-propylene blends: effects of the copolymer microstructure and content on rheology, morphology and properties of injection moulded samples
L. d'Orazio (1999)
10.1016/S0032-3861(03)00546-9
Toughenability of polymers
A. S. Argon (2003)
10.1002/APP.24289
Effect of Natural Fibers on Thermal and Mechanical Properties of Natural Fiber Polypropylene Composites Studied by Dynamic Mechanical Analysis
M. Tajvidi (2006)
10.1002/APP.1988.070350220
A generalized criterion for rubber toughening: The critical matrix ligament thickness
S. Wu (1988)
10.1007/BF00356118
Microstructure of quenched and annealed films of isotactic polypropylene
N. Alberola (1995)
10.1016/0032-3861(88)90108-5
PERCOLATION MODEL FOR BRITTLE-TOUGH TRANSITION IN NYLON/RUBBER BLENDS
Alla E. Margolina (1988)
10.1007/S101890170101
The effect of α, β crystalline structure on the mechanical properties of polypropylene
P. Tordjeman (2001)
10.1016/0032-3861(89)90213-9
Mechanical relaxation in isotactic polypropylene
B. Read (1989)
10.1016/J.POLYMER.2004.01.031
Superstructural hierarchy developed in coupled high shear/high thermal gradient conditions of injection molding in nylon 6 nanocomposites
B. Yalcin (2004)
10.1016/J.POLYMERTESTING.2008.07.005
Fracture behavior at low strain rate of dynamically and statically vulcanized polypropylene/styrene–butadiene–styrene block copolymer blends
M. Hernández (2008)
10.1007/BFB0024054
Crazing in polymers
H. Kausch (1983)
10.1007/b136972
Toughness of neat, rubber modified and filled β-nucleated polypropylene : From fundamentals to applications
C. Grein (2005)
10.1002/APP.27980
Synergistic toughening effects of nucleating agent and ethylene–octene copolymer on polypropylene
Hongwei Bai (2008)
10.1002/MASY.200451012
Micromechanical mechanisms for toughness enhancement in β-modified polypropylene
S. Henning (2004)
10.1016/0032-3861(91)90332-D
Polyolefin blends: effect of EPDM rubber on crystallization, morphology and mechanical properties of polypropylene/EPDM blends. 1
V. Choudhary (1991)
10.1002/(SICI)1097-4628(19970613)64:11<2057::AID-APP1>3.0.CO;2-I
Comparison of the fracture and failure behavior of injection‐molded α‐ and β‐polypropylene in high‐speed three‐point bending tests
J. Karger-kocsis (1997)
10.1016/0032-3861(85)90015-1
Phase structure and adhesion in polymer blends: a criterion for rubber toughening
S. Wu (1985)
10.1002/MAME.200800140
Aging Effects on the Phase Composition and Chain Mobility of Isotactic Poly(propylene)
Cristian Hedesiu (2008)
10.1016/S0032-3861(99)00215-3
Polypropylene-rubber blends : 4: the effect of the rubber particle size on the fracture behaviour at low and high test speed
A. V. D. Wal (1999)
10.1016/S0032-3861(98)00221-3
Scanning force microscopic investigation of plasticity and damage mechanisms in polypropylene spherulites under simple shear
G. Coulon (1999)
10.1016/S0261-3069(00)00033-9
Effects of crystalline morphology on the impact behavior of polypropylene
T. Xu (2001)
10.1016/S0032-3861(99)00747-8
Brittle–tough transition in PP/EPDM blends: effects of interparticle distance and tensile deformation speed
W. Jiang (2000)
10.1016/0032-3861(84)90337-9
Phase structure of impact-modified polypropylene blends
J. Karger-Kocsis (1984)
10.1016/0032-3861(82)90110-0
An improved permanganic etchant for polyolefines
R. H. Olley (1982)
10.1002/1097-4628(20001213)78:12<2089::AID-APP50>3.0.CO;2-H
Effect of dynamic crosslinking on impact strength and other mechanical properties of polypropylene/ethylene‐propylene‐diene rubber blends
Ayush Jain (2000)
10.1002/POLB.21612
Effects of nucleating agents on microstructure and fracture toughness of poly(propylene)/ethylene‐propylene‐diene terpolymer blends
H. Bai (2009)
10.1016/J.POLYMER.2004.07.023
Brittle-ductile transition of particle toughened polymers: influence of the matrix properties
W. Jiang (2004)
10.1002/PEN.21125
Detecting crystallization structure evolution of polypropylene injection‐molded bar induced by nucleating agent
H. Bai (2008)
10.1016/S0032-3861(98)00170-0
Polypropylene–rubber blends: 1. The effect of the matrix properties on the impact behaviour
A. V. D. Wal (1998)
10.1016/S0032-3861(99)00213-X
Polypropylene–rubber blends: 2. The effect of the rubber content on the deformation and impact behaviour
A. V. D. Wal (1999)
10.1021/MA00045A034
Deformation mechanisms and plastic resistance in single-crystal-textured high-density polyethylene
Z. Bartczak (1992)
10.1021/MA9001269
Influence of Annealing on Microstructure and Mechanical Properties of Isotactic Polypropylene with β-Phase Nucleating Agent
H. Bai (2009)
10.1016/S0032-3861(02)00590-6
Fracture toughness of α- and β-phase polypropylene homopolymers and random- and block-copolymers
H. Chen (2002)
10.1002/PEN.760301302
Chain structure, phase morphology, and toughness relationships in polymers and blends
S. Wu (1990)
10.1016/S0032-3861(97)10358-5
Toughening of polypropylene by different elastomeric systems
Y. Yokoyama (1998)
10.1016/S0032-3861(99)00216-5
Polypropylene–rubber blends: 5. Deformation mechanism during fracture
A. V. D. Wal (1999)
10.1007/BF01184599
The effect of annealing temperature on the fracture performance of isotactic polypropylene
P. Frontini (1995)
10.1016/0032-3861(95)93102-R
In situ observation of the plastic deformation of polypropylene spherulites under uniaxial tension and simple shear in the scanning electron microscope
M. Aboulfaraj (1995)
10.1023/A:1026744005955
A model for the large-strain deformation of polyethylene
S. Ritchie (2000)
10.1016/S0032-3861(00)00487-0
Influence of annealing on the microstructural, tensile and fracture properties of polypropylene films
D. Ferrer-Balas (2001)
10.1016/0032-3861(85)90192-2
Relaxation processes in crystalline polymers: experimental behaviour — a review
R. Boyd (1985)
10.1002/PEN.10403
How does “phase transformation toughening” work in semicrystalline polymers?
J. Karger-Kocsis (1996)
10.1007/S00396-004-1118-Z
The use of synchrotron X-ray scattering coupled with in situ mechanical testing for studying deformation and structural change in isotactic polypropylene
R. Davies (2004)
10.1016/S0167-6636(02)00307-1
Micromechanical modeling of particle-toughening of polymers by locally induced anisotropy
V. Dommelen (2003)
10.1016/0142-9418(95)00041-0
An investigation on the impact fracture characteristics of EPR toughened polypropylene
W. Tam (1996)
10.1002/MASY.19860050120
Annealing of the β‐modification of polypropylene
J. Varga (1986)
10.1016/J.POLYMER.2004.10.084
Finite strain response, microstructural evolution and β→α phase transformation of crystalline isotactic polypropylene
W. Xu (2005)
10.1002/(SICI)1097-4628(19961010)62:2<291::AID-APP4>3.0.CO;2-S
Effects of β-α transformation on the static and dynamic tensile behavior of isotactic polypropylene
J. Karger-Kocsis (1996)
10.1016/S0032-3861(99)00593-5
Influence of the loading rate on the fracture resistance of isotactic polypropylene and impact modified isotactic polypropylene
R. Gensler (2000)
10.1016/S0032-3861(01)00676-0
Effect of cavitations on brittle–ductile transition of particle toughened thermoplastics
W. Jiang (2002)
10.1016/S0032-3861(97)10083-0
Brittle-tough transition in PP/EPDM blends: effects of interparticle distance and temperature
W. Jiang (1998)
10.1016/S0032-3861(03)00205-2
Brittle–ductile transition in PP/EPDM blends: effect of notch radius
L. Huang (2003)
10.1016/S0167-577X(02)01367-8
Fracture Mechanism under Dynamic Loading of Elastomer-Modified Polypropylene
Seyed Mojtaba Zebarjad (2003)
10.1016/S0032-3861(98)00613-2
A morphological study of a highly structurally regular isotactic poly(propylene) fraction
R. Alamo (1999)
10.1002/POL.1979.180170501
Effect of crystallization time on the properties of melt‐crystallized linear polyethylene
M. McCready (1979)
10.1016/S0032-3861(97)10356-1
Effect of morphology on the brittle ductile transition of polymer blends: 3. The influence of rubber particle spatial distribution on the fracture behaviour of poly(vinyl chloride)/nitrile rubber blends
Z. Liu (1998)
10.1016/S0032-3861(97)00075-X
Effect of morphology on the brittle ductile transition of polymer blends: 1. A new equation for correlating morphological parameters
Z. Liu (1997)
10.1021/MA801455M
Rigid Amorphous Fraction in Isotactic Polypropylene
Q. Zia (2008)
10.1002/APP.1992.070460712
Annealing of commercial block polypropylene. I. Thermal and physical properties
J. Ito (1992)
10.1016/J.POLYMERTESTING.2006.02.003
Analysis of thermal properties and impact strength of PP/SRT, PP/EPDM and PP/SRT/EPDM mixtures in single screw extruder
H. M. Costa (2006)
10.1016/S0032-3861(02)00135-0
Influence of β nucleation on the mechanical properties of isotactic polypropylene and rubber modified isotactic polypropylene
C. Grein (2002)
10.1016/S0032-3861(02)00393-2
The effect of elastomeric nano-particles on the mechanical properties and crystallization behavior of polypropylene
M. Zhang (2002)
10.1021/MA070014Q
Effect of Temperature and Annealing on the Phase Composition, Molecular Mobility, and the Thickness of Domains in Isotactic Polypropylene Studied by Proton Solid-State NMR, SAXS, and DSC
Cristian Hedesiu (2007)



This paper is referenced by
10.1016/J.POLYMERTESTING.2019.02.017
Synergistic toughening of carbon nanotubes and nucleating agent in polypropylene/ethylene-propylene-diene terpolymer blend
Xiao-dong Qi (2019)
10.1002/POLB.24561
Morphological reorganization and mechanical enhancement in multilayered polyethylene/polypropylene films by layer multiplication or mild annealing
M. Mauri (2018)
10.1016/J.COMPOSITESA.2017.11.014
Long-term performance of β-nucleated toughened polypropylene-biocarbon composites
Ehsan Behazin (2018)
10.1557/JMR.2013.332
Annealing-induced crystalline structure and mechanical property changes of polypropylene random copolymer
J. Chen (2013)
10.1590/0104-1428.1692
Influence of the beta crystalline phase fraction on the mechanical behavior of polypropylene/calcium carbonate/polypropylene - graft - maleic anhydride composites
Rogério Massanori Sakahara (2014)
10.1021/IE403872D
Amplified Toughening Effect of Annealing on Isotactic Polypropylene Realized by Introducing Microvoids
J. Chen (2014)
10.1007/s10118-015-1579-1
Effect of annealing temperature on low-temperature toughness of β-nucleated polypropylene random copolymer/ethylene-propylene-diene terpolymer blends
H. Ding (2014)
10.1016/J.POLYMER.2013.10.020
Realizing the simultaneously improved toughness and strength of ultra-thin LLDPE parts through annealing
Suyu Shi (2013)
10.1002/APP.42773
The effect of high temperature annealing process on crystallization process of polypropylene, mechanical properties, and surface quality of plastic parts
W. Wang (2015)
10.1021/am201564f
Tailoring impact toughness of poly(L-lactide)/poly(ε-caprolactone) (PLLA/PCL) blends by controlling crystallization of PLLA matrix.
Hongwei Bai (2012)
10.1021/ACS.IECR.5B01245
Abnormal tensile creep behavior of annealed β-nucleated isotactic polypropylene
X. Wang (2015)
10.1016/J.POLYMER.2013.07.051
Toughening of poly(l-lactide) with poly(ε-caprolactone): Combined effects of matrix crystallization and impact modifier particle size
H. Bai (2013)
10.1007/s10118-015-1668-1
Annealing induced microstructure and mechanical property changes of impact resistant polypropylene copolymer
J. Chen (2015)
10.1002/APP.36633
Nonisothermal crystallization and multiple melting behaviors of β‐nucleated impact‐resistant polypropylene copolymer
Xiaoxi Li (2012)
10.1016/J.POLYMERTESTING.2012.09.012
Study on the fracture behavior of annealed immiscible polypropylene/poly(ethylene oxide) blend
Haiyan Wu (2013)
10.1007/s00396-014-3368-8
Investigations in annealing effects on structure and properties of β-isotactic polypropylene with X-ray synchrotron experiments
Yingrui Shang (2014)
10.1039/C5RA09685E
Synergetic effects of a matrix crystalline structure and chain mobility on the low temperature toughness of polypropylene/ethylene–octene copolymer blends
X. Hu (2015)
10.1016/J.COMPOSITESB.2016.02.040
Impact toughness of polypropylene/glass fiber composites: Interplay between intrinsic toughening and extrinsic toughening
Bowen Yu (2016)
10.13179/canchemtrans.2014.02.01.0067
Influence of Tacticity on Structural Ordering of Isotactic Polypropylene under Annealing
A. Mamun (2014)
10.1080/00222348.2015.1087451
The Changes of Microstructure and Physical Properties of Isotactic Polypropylene/β Nucleation Agent/Polyolefin Elastomer Induced by Annealing Following Processing
Dashan Mi (2015)
10.1088/2053-1591/AAB9C7
The effect of thermal history on crystalline structure and mechanical properties of β-nucleated isotactic polypropylene
Yefei Tian (2018)
10.1016/J.AIEPR.2019.06.001
Creep behavior and mechanical properties of isotactic polypropylene composites via twice melt injection molding
X. Wang (2019)
10.1007/s11595-018-1904-y
Effects of Annealing Process on Crystallization and Low Temperature Resistance Properties of PP-R Composites
Yulong Ma (2018)
Semantic Scholar Logo Some data provided by SemanticScholar