Crystallization behavior and mechanical properties of nano- CaCO 3/β-nucleated ethylene-propylene random copolymer composites

J. H. Mai, M. Q. Zhang, M. Z. Rong, T. Bárány, W. H. Ruan

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

To provide ethylene-propylene random copolymer (PPR) with balanced mechanical properties, β-nucleating agent and CaCO 3 nano particles are incorporated into PPR matrix by melt blending. It is found that crystallization rate and relative content of β-crystal increase with the addition of β-nucleating agent together with nanoparticles. Size of PPR spherulite is greatly reduced, and a specific morphology appears, in which α-crystal lamella is grown upon the β-nucleus. The results suggest that both β-nucleating agent and nano-CaCO 3 have heterogeneous nucleation and synergistic effects on β-nucleation of PPR. Mechanical characterization shows that mechanical properties of PPR can be tuned by incorporation of β-nucleating agent and nano-CaCO 3 particles. Under suitable compositions, low temperature impact strength and high temperature creep resistance of PPR, the bottlenecks of application of such material, can be simultaneously improved without sacrificing the Youngs' modulus and tensile strength.

Original languageEnglish
Pages (from-to)739-749
Number of pages11
JournalExpress Polymer Letters
Volume6
Issue number9
DOIs
Publication statusPublished - 2012

Fingerprint

Crystallization
propylene
Propylene
copolymers
Ethylene
ethylene
Copolymers
mechanical properties
crystallization
Mechanical properties
composite materials
Composite materials
Nucleation
nucleation
impact strength
creep strength
spherulites
Crystals
Creep resistance
Impact strength

Keywords

  • β-nucleating agent
  • Crystallization
  • Ethylene-propylene random copolymer
  • Mechanical properties
  • Nano-CaCO

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Chemistry
  • Chemical Engineering(all)
  • Organic Chemistry
  • Physical and Theoretical Chemistry

Cite this

Crystallization behavior and mechanical properties of nano- CaCO 3/β-nucleated ethylene-propylene random copolymer composites. / Mai, J. H.; Zhang, M. Q.; Rong, M. Z.; Bárány, T.; Ruan, W. H.

In: Express Polymer Letters, Vol. 6, No. 9, 2012, p. 739-749.

Research output: Contribution to journalArticle

@article{da5e1a38f02144cbb9c80d372f18c9ff,
title = "Crystallization behavior and mechanical properties of nano- CaCO 3/β-nucleated ethylene-propylene random copolymer composites",
abstract = "To provide ethylene-propylene random copolymer (PPR) with balanced mechanical properties, β-nucleating agent and CaCO 3 nano particles are incorporated into PPR matrix by melt blending. It is found that crystallization rate and relative content of β-crystal increase with the addition of β-nucleating agent together with nanoparticles. Size of PPR spherulite is greatly reduced, and a specific morphology appears, in which α-crystal lamella is grown upon the β-nucleus. The results suggest that both β-nucleating agent and nano-CaCO 3 have heterogeneous nucleation and synergistic effects on β-nucleation of PPR. Mechanical characterization shows that mechanical properties of PPR can be tuned by incorporation of β-nucleating agent and nano-CaCO 3 particles. Under suitable compositions, low temperature impact strength and high temperature creep resistance of PPR, the bottlenecks of application of such material, can be simultaneously improved without sacrificing the Youngs' modulus and tensile strength.",
keywords = "β-nucleating agent, Crystallization, Ethylene-propylene random copolymer, Mechanical properties, Nano-CaCO",
author = "Mai, {J. H.} and Zhang, {M. Q.} and Rong, {M. Z.} and T. B{\'a}r{\'a}ny and Ruan, {W. H.}",
year = "2012",
doi = "10.3144/expresspolymlett.2012.79",
language = "English",
volume = "6",
pages = "739--749",
journal = "Express Polymer Letters",
issn = "1788-618X",
publisher = "BME-PT and GTE",
number = "9",

}

TY - JOUR

T1 - Crystallization behavior and mechanical properties of nano- CaCO 3/β-nucleated ethylene-propylene random copolymer composites

AU - Mai, J. H.

AU - Zhang, M. Q.

AU - Rong, M. Z.

AU - Bárány, T.

AU - Ruan, W. H.

PY - 2012

Y1 - 2012

N2 - To provide ethylene-propylene random copolymer (PPR) with balanced mechanical properties, β-nucleating agent and CaCO 3 nano particles are incorporated into PPR matrix by melt blending. It is found that crystallization rate and relative content of β-crystal increase with the addition of β-nucleating agent together with nanoparticles. Size of PPR spherulite is greatly reduced, and a specific morphology appears, in which α-crystal lamella is grown upon the β-nucleus. The results suggest that both β-nucleating agent and nano-CaCO 3 have heterogeneous nucleation and synergistic effects on β-nucleation of PPR. Mechanical characterization shows that mechanical properties of PPR can be tuned by incorporation of β-nucleating agent and nano-CaCO 3 particles. Under suitable compositions, low temperature impact strength and high temperature creep resistance of PPR, the bottlenecks of application of such material, can be simultaneously improved without sacrificing the Youngs' modulus and tensile strength.

AB - To provide ethylene-propylene random copolymer (PPR) with balanced mechanical properties, β-nucleating agent and CaCO 3 nano particles are incorporated into PPR matrix by melt blending. It is found that crystallization rate and relative content of β-crystal increase with the addition of β-nucleating agent together with nanoparticles. Size of PPR spherulite is greatly reduced, and a specific morphology appears, in which α-crystal lamella is grown upon the β-nucleus. The results suggest that both β-nucleating agent and nano-CaCO 3 have heterogeneous nucleation and synergistic effects on β-nucleation of PPR. Mechanical characterization shows that mechanical properties of PPR can be tuned by incorporation of β-nucleating agent and nano-CaCO 3 particles. Under suitable compositions, low temperature impact strength and high temperature creep resistance of PPR, the bottlenecks of application of such material, can be simultaneously improved without sacrificing the Youngs' modulus and tensile strength.

KW - β-nucleating agent

KW - Crystallization

KW - Ethylene-propylene random copolymer

KW - Mechanical properties

KW - Nano-CaCO

UR - http://www.scopus.com/inward/record.url?scp=84863813577&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84863813577&partnerID=8YFLogxK

U2 - 10.3144/expresspolymlett.2012.79

DO - 10.3144/expresspolymlett.2012.79

M3 - Article

AN - SCOPUS:84863813577

VL - 6

SP - 739

EP - 749

JO - Express Polymer Letters

JF - Express Polymer Letters

SN - 1788-618X

IS - 9

ER -