Crystalline morphology and melting behavior of nylon11/ethylene-vinyl alcohol/dicumyl peroxide blends

被引：15
作者：
Hu, Guo-sheng [1 ]
Ding, Zheng-ya [1 ]
Li, Ying-chun [1 ]
Wang, Biao-bing [1 ,2 ]
机构：
[1] N Univ China, Shanxi Res Ctr Engn Technol Engn Plast, Taiyuan 030051, Peoples R China
[2] Kansas State Univ, Dept Grain Sci & Ind, Biomat & Technol Lab, Manhattan, KS 66506 USA
来源：
JOURNAL OF POLYMER RESEARCH | 2009年 / 16卷 / 03期
关键词：
Nylon; 11; Ethylene-vinyl alcohol; Blends; Crystalline morphology; Melting behavior; VINYL ALCOHOL COPOLYMER; MECHANICAL-PROPERTIES; AMORPHOUS POLYAMIDE; BARRIER PROPERTIES; CONTAINING IONOMER; PHASE MORPHOLOGY; BINARY BLENDS; NYLON-11; FILMS; EVOH;
D O I：
10.1007/s10965-008-9225-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：
Nylon 11/ethylene-vinyl alcohol (EVOH)/dicumyl peroxide (DCP) blends were prepared using a single-screw extruder. The Fourier transcript infrared spectroscopy results showed that strong interactions existed and co-crystallization formed between nylon 11 and EVOH in the presence of DCP. The crystalline morphology and melting behavior was investigated by means of Wide-angle X-ray diffraction (WAXD), polarized optical microscope (POM) and differential scanning calorimetry, respectively. The WAXD indicated that no crystal structure transition occurred for both nylon 11 and EVOH after the addition of DCP. The spherulites size of nylon 11 became smaller and crystalline bands of EVOH formed in the presence of DCP as revealed by POM observation. Both nylon 11 and its blends exhibited two melting endotherms. The equilibrium melting point for blends was lower than that of nylon 11, it was indicated that the mobility of nylon 11 was hindered after the addition of EVOH and DCP.
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页码：263 / 269
页数：7
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