Compatibilizing role of carbon nanotubes in poly(vinyl alcohol)/starch blend

被引：39

作者：

Jose, Jobin ^{[1
]}

De, S. K. ^{[1
]}

AlMa'adeed, Mariam Al-Ali ^{[2
]}

Dakua, Jolly Bhadra ^{[2
]}

Sreekumar, P. A. ^{[3
]}

Sougrat, Rachid ^{[4
]}

Al-Harthi, Mamdouh A. ^{[1
,5
]}

机构：

[1] King Fahd Univ Petr & Minerals, Dept Chem Engn, Dhahran 31261, Saudi Arabia

[2] Qatar Univ, Ctr Adv Mat, Doha, Qatar

[3] Jubail Ind Coll, Jubail Ind City, Saudi Arabia

[4] King Abdullah Univ Sci & Technol, Thuwal, Saudi Arabia

[5] King Fahd Univ Petr & Minerals, Ctr Res Excellence Nanotechnol, Dhahran 31261, Saudi Arabia

来源：

STARCH-STARKE | 2015年 / 67卷 / 1-2期

关键词：

Carbon nanotube; Compatibilizer; Nanocomposites; Poly(vinyl alcohol); Starch; EPOXIDIZED NATURAL-RUBBER; INDUCED CROSS-LINKING; POLYVINYL-ALCOHOL; POLYACRYLIC-ACID; BLACK FILLER; MECHANICAL-PROPERTIES; STARCH/PVA BLEND; NANOCOMPOSITE; MORPHOLOGY; HYDROGELS;

D O I：

10.1002/star.201400074

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

Polymer nanocomposites based on poly(vinyl alcohol)/starch blend and carbon nanotubes (CNT) were prepared by solution mixing, followed by casting. Glycerol was used as a plasticizer and added in the starch dispersion. The uniform dispersion of CNT in water before mixing with PVA/starch blend, was achieved by using an Ultrasonicator probe. The composites were characterized by measurement of tensile properties, thermal analysis, FE-SEM, TEM, XRD studies, and water uptake. It was observed that the decrease in tensile strength, modulus, and elongation at break on addition of starch into PVA can be arrested by incorporation of CNT. The strong physical bonding such as hydrogen bonding among the hydroxyl groups of polymer components and oxygen containing groups on CNT surface resulted in a more tortuous path for the water to follow, lowering of water uptake. Thermal analysis and spectroscopic images showed an increase in blend homogeneity in the presence of CNT.

引用

页码：147 / 153

页数：7

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