Properties and Semicrystalline Structure Evolution of Polypropylene/Montmorillonite Nanocomposites under Mechanical Load

被引：29

作者：

Stribeck, Norbert ^{[1
]}

Zeinolebadi, Ahmad ^{[1
]}

Sari, Morteza Ganjaee ^{[2
]}

Botta, Stephan ^{[3
]}

Jankova, Katja ^{[4
]}

Hvilsted, Soren ^{[4
]}

Drozdov, Aleksey ^{[5
]}

Klitkou, Rasmus ^{[6
]}

Potarniche, Catalina-Gabriela ^{[6
]}

Christiansen, Jesper deClaville ^{[6
]}

Ermini, Valentina ^{[7
]}

机构：

[1] Univ Hamburg, Dept Chem, Inst TMC, D-20146 Hamburg, Germany

[2] Amirkabir Univ Technol, Dept Polymer Engn & Color Technol, Tehran, Iran

[3] DESY, HASYLAB, D-22603 Hamburg, Germany

[4] Tech Univ Denmark, Dept Chem & Biochem Engn, Danish Polymer Ctr, DK-2800 Lyngby, Denmark

[5] Danish Technol Inst, DK-2630 Taastrup, Denmark

[6] Aalborg Univ, Dept Prod, DK-9220 Aalborg, Denmark

[7] Laviosa Chim Mineraria SPA, I-57123 Livorno, Italy

来源：

MACROMOLECULES | 2012年 / 45卷 / 02期

关键词：

X-RAY-SCATTERING; SMALL-ANGLE SCATTERING; FIBER-REINFORCED POLYPROPYLENE; NANOSTRUCTURE EVOLUTION; NUCLEATING-AGENTS; DEFORMATION; CRYSTALLIZATION; POLYETHYLENE; CLAY; MICROSTRUCTURE;

D O I：

10.1021/ma202004f

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Small-angle X-ray scattering (SAXS) monitors tensile and load-cycling tests of metallocene isotactic polypropylene (PP), a blend of PP and montmorillonite (MMT), and two block copolymer compatibilized PP/MMT nanocomposites. Mechanical properties of the materials are similar, but the semicrystalline nanostructure of the PP differs. This is explained by a nucleation effect of the MMT. Competitive crystal growth diminishes crystallite sizes. The reinforcing effect of the MMT filler appears consumed by weakening the PP matrix. Decays of mechanical and nanostructure response in dynamic load cycling indicate materials fatigue. Lifetimes describe the reinforcing and weakening effects. Addition of 3% MMT halves the fortifying effect of the PP nanostructure. A net gain of reinforcement (11%) is observed with the highly compatibilized composite in which the strength of the semicrystalline PP is reduced to 25%. Other results concern the evolution of Strobl's block structure and void formation during tensile loading.

引用

页码：962 / 973

页数：12

共 50 条

[21] Structural and optical properties of polypropylene-montmorillonite nanocomposites
de Paiva, Lucilene Betega
Morales, Ana Rita
Guimaraes, Thiago Ribeiro
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2007, 447 (1-2): : 261 - 265
[22] Thermal and Antistatic Properties of Polypropylene/Organo Montmorillonite Nanocomposites
Chow, Wen Shyang
Tham, Wei Ling
POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING, 2009, 48 (04) : 342 - 350
[23] Influence of clay modification on the structure and mechanical properties of EPDM/montmorillonite nanocomposites
Zheng, H
Zhang, Y
Peng, ZL
Zhang, YX
POLYMER TESTING, 2004, 23 (02) : 217 - 223
[24] A study on structure and mechanical properties of polyurethane/organic-montmorillonite nanocomposites
Wu, Shishan
Cheng, Aimin
Hua, Hongyan
Shen, Jian
POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING, 2006, 45 (06) : 685 - 689
[25] Study of the structure and rheological and mechanical properties of silicone rubber/montmorillonite nanocomposites
Rabova, Veronika
POLIMERY, 2009, 54 (11-12) : 790 - 794
[26] Structure and properties of a montmorillonite/polypropylene nanocomposite
Kurokawa, Y
Yasuda, H
Kashiwagi, M
Oyo, A
JOURNAL OF MATERIALS SCIENCE LETTERS, 1997, 16 (20) : 1670 - 1672
[27] Effects of antistatic agent on the mechanical, morphological and antistatic properties of polypropylene/organo-montmorillonite nanocomposites
Chow, W. S.
Tham, W. L.
EXPRESS POLYMER LETTERS, 2009, 3 (02): : 116 - 125
[28] Preparation and mechanical properties of polypropylene/montmorillonite nanocomposites - After grafted with hard/soft grafting agent
Liu, Sung-Po
Liang, Che-Wei
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2011, 38 (04) : 434 - 441
[29] The effect of montmorillonite modification and the use of coupling agent on mechanical properties of polypropylene-clay nanocomposites
Arbelaiz, A.
Fernandez, G.
Orue, A.
POLYMERS & POLYMER COMPOSITES, 2021, 29 (06): : 660 - 671
[30] Effect of Clay Modification on the Morphological, Mechanical, and Thermal Properties of Polyamide 6/Polypropylene/Montmorillonite Nanocomposites
Kusmono, Z. A.
Ishak, Mohd
Chow, W. S.
Takeichi, T.
Rochmadi
POLYMER COMPOSITES, 2010, 31 (07) : 1156 - 1167

← 1 2 3 4 5 →