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受限条件下PA6的结晶动力学研究
发表时间：2012-05-15 浏览量：1491 下载量：622
| 全部作者： | 吉亚丽，梁凯，梁伯润 |
| 作者单位： | 东华大学材料科学与工程学院；东华大学化学化工与生物工程学院 |
| 摘 要： | 采用原位聚合/原位增容的共混技术制备聚苯醚/尼龙6［poly(2,6-dimethyl-1,4-phenylene oxide)/polyamide 6,PPO/PA6］纳米共混物，利用差示扫描量热分析和广角X射线衍射(wide angle X-ray diffraction, WAXD)分别研究了PA6在受限条件下的结晶行为。研究发现：PA6在微米尺度的孤立相畴中的结晶主要生成α晶型和少量γ晶型；PA6在纳米尺度的相畴中结晶时，生成较多γ晶型；通过非等温结晶动力学以及Kissinger公式分析，发现在纳米共混物中PA6结晶速率较快，更易结晶。 |
| 关 键 词： | 材料物理与化学；受限结晶；结晶动力学；PA6；纳米共混 |
| Title： | Study on crystallization kinetics of PA6 in confined domains |
| Author： | JI Yali, LIANG Kai, LIANG Borun |
| Organization： | College of Materials Science and Engineering, Donghua University; College of Chemistry, Chemical Engineering and Biotechnology, Donghua University |
| Abstract： | In this study, the nanoblends of poly (2,6-dimethyl-1,4-phenylene oxide)/polyamide 6 (PPO/PA6) were prepared by the method of in situ polymerization and in situ compatibility, and the confined crystallization behavior of PA6 was studied using differential scanning calorimetry and wide angle X-ray diffraction (WAXD). It was found that there coexisted α-type and a small quantity of γ-type crystals in the micrometer-sized confined domains; however, a large amount of γ-type crystals was formed in the nanometer-sized confined domains. According to non-isothermal crystallization kinetics and Kissinger formula, it was concluded that PA6 was easy to crystallize in the nanoblends. |
| Key words： | material physics and chemistry; confined crystallization; crystallization kinetics; PA6; nanoblend |
| 发表期数： | 2012年5月第9期 |
| 引用格式： | 吉亚丽，梁凯，梁伯润. 受限条件下PA6的结晶动力学研究[J]. 中国科技论文在线精品论文，2012，5（9）：820-824. |
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