Effect of stearic acid/organic montmorillonite on EVA/SA/OMMT nanocomposite foams by melting blending

被引:16
作者
Duan, Zhouyang [1 ]
Ma, Jianzhong [1 ,2 ]
Xue, Chaohua [2 ]
Deng, Fuquan [2 ]
机构
[1] Shaanxi Univ Sci & Technol, Minist Educ Chem Sci & Technol Light Chem Addit, Key Lab, Xian 710021, Peoples R China
[2] Shaanxi Univ Sci & Technol, Coll Resource & Environm, Xian 710021, Peoples R China
关键词
Ethylene vinyl acetate copolymer; organic montmorillonite; stearic acid; foam; cell growth; MECHANICAL-PROPERTIES; POLYSTYRENE FOAMS; MORPHOLOGY; BEHAVIOR; MATRIX; INTERCALATION; EXFOLIATION; IMPROVEMENT; ORGANOCLAY; AGENT;
D O I
10.1177/0021955X14525796
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
The effects of stearic acid (SA)/organic montmorillonite (OMMT) on the morphology and mechanical properties of nanocomposite foams based on ethylene vinyl acetate (EVA) copolymer were studied. The dispersion of montmorillonite layers was characterized by both X-ray diffraction and transmission electron microscopy. The cellular microstructure of the foamed samples was observed by scanning electron microscope. The effects of SA/OMMT on the mechanical properties of the EVA-based foams were also investigated. It was found that the combined effects of the existence of SA/OMMT led to bimodal foam structure in EVA/SA/OMMT nanocomposite foams. Compared with pure EVA foams, the density of EVA/SA/OMMT foams became lower with the addition of SA/OMMT, while the peel strength and elongation-at-break of the samples were increased.
引用
收藏
页码:263 / 277
页数:15
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