Preparation of Well-Exfoliated Poly(ethylene-co-vinyl acetate)/α-Zirconium Phosphate Nanocomposites

被引：15
|
作者：
Zhao, Mingzhen [1 ]
Baker, Joseph [1 ]
Jiang, Zhiyuan [1 ]
Zhu, Zewen [1 ]
Wu, Hong-Mao [1 ,2 ]
Wu, Jen-Long [2 ]
Kang, Wen-Hao [2 ]
Sue, Hung-Jue [1 ]
机构：
[1] Texas A&M Univ, Dept Mat Sci & Engn, College Stn, TX 77843 USA
[2] Polyolefin Dept Formosa Plast Corp, Mailiao 63801, Yunlin, Taiwan
来源：
LANGMUIR | 2021年 / 37卷 / 15期
关键词：
SINGLE-LAYER NANOSHEETS; ZIRCONIUM-PHOSPHATE; BARRIER PROPERTIES; GAS BARRIER; SILANE FUNCTIONALIZATION; INTERFACIAL INTERACTIONS; RHEOLOGICAL BEHAVIOR; POLY(VINYL ACETATE); MECHANICAL-BEHAVIOR; MORPHOLOGY;
D O I：
10.1021/acs.langmuir.1c00146
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Poly(ethylene-co-vinyl acetate) (PEVAc) nanocomposites containing exfoliated alpha-zirconium phosphate (ZrP) have been prepared using a simple solution mixing method to improve their barrier and mechanical properties. ZrP was pre-exfoliated with a surfactant, followed by additional targeted surface functionalization and surfactant exchange to allow for hydrogen bonding of ZrP with the acetate functionality on PEVAc and to improve ZrP surface hydrophobicity. The solvent is found to play an important role in stabilizing ZrP exfoliation in the presence of PEVAc to retain full exfoliation and homogeneous dispersion upon the removal of the solvent. The PEVAc/ZrP nanocomposite exhibits greatly improved oxygen barrier, melt strength, and mechanical properties. The usefulness of the present study for the preparation of olefinic polymer nanocomposites is discussed.
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页码：4550 / 4561
页数：12
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