Crystallization behavior of polypropylene/polyamide 6/montmorillonite nanocomposites

被引:11
|
作者
Wang, Qian [1 ]
Wang, Xiao [1 ,2 ]
Fang, Pengfei [1 ]
Wang, Dahai [1 ]
Dai, Yiqun [1 ]
Wang, Shaojie [1 ]
Liew, Kim Meow [2 ]
Xu, Zepeng [1 ]
机构
[1] Wuhan Univ, Dept Phys, Key Lab Artificial Micro & Nanostruct, Minist Educ, Wuhan 430072, Peoples R China
[2] City Univ Hong Kong, Dept Bldg & Construct, Hong Kong, Hong Kong, Peoples R China
关键词
crystallization; polypropylene; polyamide; 6; nanocomposites; ISOTACTIC POLYPROPYLENE; MECHANICAL-PROPERTIES; MELTING BEHAVIOR; MORPHOLOGY; KINETICS; COMPATIBILIZERS; CRYSTALLINITY; NUCLEATION; EXTRUSION; NYLON-6;
D O I
10.1002/pi.2869
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Polymer blended materials such as polyamide 6 (PA6)/polypropylene (PP) blends have received considerable attention in recent years. To improve the compatibility of PA6 and PP, compatibilizers like maleic anhydride-g-polypropylene (MPP) are often added. In addition, organically modified montmorillonite (MMT) is also used to improve the properties of various materials. In this work, the crystallization behavior of PP/PA6/MMT nanocomposites with MPP compatibilizer was investigated systematically. The annealing process effectively improved the crystallization of alpha-PP. The crystallization temperature (T-c) of PA6 was increased by ca2-3 degrees C on introducing MPP or MMT alone to the PP/PA6 system, whereas T-c of PP underwent no obvious change. However, when MPP and MMT were added simultaneously, T-c of PP and PA6 increased by 6.6 and 4.2 degrees C, respectively, and a new crystallization peak corresponding to PP-g-PA6 copolymer phase was observed at 162.5 degrees C. The combined effect of MPP and MMT led to better compatibility of PP with PA6. Moreover, the results of a non-isothermal crystallization kinetics experiment revealed that the simultaneous introduction of MPP and MMT markedly shortened the crystallization time. (C) 2010 Society of Chemical Industry
引用
收藏
页码:1303 / 1309
页数:7
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