Carbon nanotube functional group-dependent compatibilization of polyamide 6 and poly(methyl methacrylate) nanocomposites

被引:4
作者
Bikshamaiah, Nampally [1 ]
Babu, Nandru Mohan [2 ]
Kumar, Danikonda Suresh [3 ]
Ramesh, Suramoni [4 ]
Madhuri, Dumpala [5 ]
Sainath, Annadanam V. Sesha [6 ]
Madhukar, Katakam [7 ]
机构
[1] Mahatma Gandhi Univ, Univ Coll Sci & Informat, Dept Phys, Nalgonda 508001, Telangana, India
[2] Telangana Univ, Dept Phys, Telangana Univ South Campus, Nizamabad, Telangana, India
[3] Satavahana Univ, PG Ctr, Dept Phys, Karimnagar 505209, Telangana, India
[4] Malla Reddy Inst Technol & Sci MRITS, Dept Phys, Hyderabad, Telangana, India
[5] Osmania Univ, Osmania Univ Coll Women, Dept Phys, Hyderabad, Telangana, India
[6] CSIR Indian Inst Chem Technol CSIR IICT, Fluoroagrochem Polymers & Funct Mat Dept, Hyderabad 500007, Telangana, India
[7] Osmania Univ, Univ Coll Sci, Dept Phys, Polymer Nanocomposites & Funct Mat Lab, Hyderabad 500007, Telangana, India
关键词
Functionalized single-wall carbon nanotubes; Nanocomposites; Compatibilization; Morphology; Mechanical properties of PA6– PMMA nanocomposites; MECHANICAL-PROPERTIES; ELECTRICAL-CONDUCTIVITY; THERMAL-PROPERTIES; POLYMER BLENDS; COMPOSITES; BEHAVIOR; MORPHOLOGY; SINGLE; DISPERSION; STATE;
D O I
10.1007/s13726-021-00930-z
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Nanocomposites of polyamide 6 (PA6)-poly(methyl methacrylate) (PMMA)-functionalized single-wall carbon nanotubes (f-SWCNTs) with hydroxyl (SWCNTOH) and carboxylic acid (SWCNTCOOH) in weight ratios of 79.5-19.5-1, 49.5-49.5-1, and 19.5-79.5-1 were fabricated and investigated in terms of morphology, mechanical and XRD studies. Blends of 80-20, 50-50, and 20-80 weight ratios of PA6-PMMA have functioned as references. The scanning electron microscopy images of nanocomposites showed a relatively uniform dispersion of PMMA domains as co-continuous phase morphology in the continuous phase of PA6 compared to their respective blends. The f-SWCNTs acted as functional group-dependent compatibilizers for the PA6-PMMA blend system. Compatibilization of PA6-PMMA blends was higher in the presence of functionalized SWCNTs. XRD analysis indicated that the alpha(I) and alpha(II) phases of the PA6 were dependent on the weight ratio of the PA6 and PMMA and the nature of the f-SWCNTs. The PMMA-rich blends and nanocomposites exhibited the rich alpha(I) phase. The melt strength of the nanocomposites was higher compared to that of the PA6-PMMA blends. All the nanocomposites exhibited higher tensile strength than their corresponding blends. Tensile modulus increased with increasing weight percent of PMMA in blends (from 810 to 1135 MPa) and in nanocomposites (from 854 to 1298 MPa). PA6-PMMA-SWCNT(OH)19.5-79.5-1 nanocomposites exhibited higher tensile modulus (1298 MPa) compared to all the blends and PA6-PMMA-SWCNTCOOH nanocomposites.
引用
收藏
页码:789 / 799
页数:11
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