Crystallization, mechanical, and fracture behavior of mullite fiber-reinforced polypropylene nanocomposites

被引:16
作者
Vengatesan, Muthukumaraswamy Ranagraj [1 ]
Singh, Swati [1 ]
Pillai, Vishnu V. [1 ]
Mittal, Vikas [1 ]
机构
[1] Petr Inst, Dept Chem Engn, Abu Dhabi, U Arab Emirates
关键词
composites; crystallization; mechanical properties; morphology; polyolefins; TOUGHNESS; COMPOSITES; MORPHOLOGY;
D O I
10.1002/app.43725
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
This study describes the reinforcement effect of surface modified mullite fibers on the crystallization, thermal stability, and mechanical properties of polypropylene (PP). The nanocomposites were developed using polypropylene-grafted-maleic anhydride (PP-g-MA) as compatibilizer with different weight ratios (0.5, 1.0, 1.5, 2.5, 5.0, and 10.0 wt %) of amine functionalized mullite fibers (AMUF) via solution blending method. Chemical grafting of AMUF with PP-g-MA resulted in enhanced filler dispersion in the polymer as well as effective filler-polymer interactions. The dispersion of nanofiller in the polymer matrix was identified using scanning electron microscopy (SEM) elemental mapping and transmission electron microscopy (TEM) analysis. AMUF increased the Young's modulus of PP in the nanocomposites up to a 5 wt % filler content, however, at 10 wt % loading, a decrease in the modulus resulted due to agglomeration of AMUF. The impact strength of PP increased simultaneously with the modulus as a function of AMUF content (up to 5 wt %). The mechanical properties of PP-AMUF nanocomposites exhibited improved thermal performance as compared to pure PP matrix, thus, confirming the overall potential of the generated composites for a variety of structural applications. The mechanical properties of 5 wt % of AMUF filled PP nanocomposite were also compared with PP nanocomposites generated with unmodified MUF and the results confirmed superior mechanical properties on incorporation of modified filler. (c) 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43725.
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页数:9
相关论文
共 38 条
[1]  
[Anonymous], 2015, SURFACE MODIFICATION
[2]   Towards balanced strength and toughness improvement of isotactic polypropylene nanocomposites by surface functionalized graphene oxide [J].
Bao, Rui-Ying ;
Cao, Jun ;
Liu, Zheng-Ying ;
Yang, Wei ;
Xie, Bang-Hu ;
Yang, Ming-Bo .
JOURNAL OF MATERIALS CHEMISTRY A, 2014, 2 (09) :3190-3199
[3]   Flame spray pyrolysis of precursors as a route to nano-mullite powder: Powder characterization and sintering behavior [J].
Baranwal, R ;
Villar, MP ;
Garcia, R ;
Laine, RM .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2001, 84 (05) :951-961
[4]   Compatibilisation effect of PP-g-MA copolymer on iPP/SiO2 nanocomposites prepared by melt mixing [J].
Bikiaris, DN ;
Vassiliou, A ;
Pavlidou, E ;
Karayannidis, GP .
EUROPEAN POLYMER JOURNAL, 2005, 41 (09) :1965-1978
[5]   Polypropylene/organoclay nanocomposites prepared using a Laboratory Mixing Extruder (LME): crystallization, thermal stability and dynamic mechanical properties [J].
Chafidz, Achmad ;
Kaavessina, Mujtahid ;
Al-Zahrani, Saeed ;
Al-Otaibi, Mansour N. .
JOURNAL OF POLYMER RESEARCH, 2014, 21 (06)
[6]  
Chandramouleeswaran S, 2007, NANOTECHNOLOGY, V18, DOI 10.1088/0957-4484/18/38/385301
[7]   Toughening Polypropylene and Its Nanocomposites with Submicrometer Voids [J].
Dasari, Aravind ;
Zhang, Qing-Xin ;
Yu, Zhong-Zhen ;
Mai, Yiu-Wing .
MACROMOLECULES, 2010, 43 (13) :5734-5739
[8]   Influence of phase morphology and crystalline structure on the toughness of rubber-toughened isotatic polypropylene blends [J].
Du, Hainan ;
Zhang, Yu ;
Liu, Hong ;
Liu, Kejun ;
Jin, Ming ;
Li, Xinpeng ;
Zhang, Jie .
POLYMER, 2014, 55 (19) :5001-5012
[9]   Polypropylene/calcium carbonate nanocomposites - effects of processing techniques and maleated polypropylene compatibiliser [J].
Fuad, M. Y. A. ;
Hanim, H. ;
Zarina, R. ;
Ishak, Z. A. Mohd ;
Hassan, Azman .
EXPRESS POLYMER LETTERS, 2010, 4 (10) :611-620
[10]   RUBBER-TOUGHENING IN POLYPROPYLENE [J].
JANG, BZ .
JOURNAL OF APPLIED POLYMER SCIENCE, 1985, 30 (06) :2485-2504