| 双向拉伸聚对苯二甲酸乙二醇酯驻极体的分立陷阱 |
| |
| 引用本文： | 张兴元,周漪琴.双向拉伸聚对苯二甲酸乙二醇酯驻极体的分立陷阱[J].高分子学报,1994,0(4):413-417. |
| |
| 作者姓名： | 张兴元 周漪琴 |
| |
| 作者单位： | 中国科学技术大学材料科学与工程系，青岛大学化学系 |
| |
| 摘 要： | 用热释电极化温度扫描法在温度间隔为５℃的条件下研究了经过双向拉伸具有不同平面取向度的聚对苯二甲酸乙二醇酯ＰＥＴ驻极体试样，分离出对解俘获电流峰贡献的各分立陷阶电流峰．随平面取向度和脂肪链反式构象含量的提高，各分立陷阶深度增加．结构缺陷种类的增多使分立陷阱数由二个增至六个，并导致分立陷阱深度分布加宽．
|
| 关 键 词： | 聚对苯二甲酸乙二醇酯（PET），分立陷阱，双向拉伸 |
| 收稿时间： | 1992-02-18 |
DISCRETE TRAPPING LEVELS OF BIAXIAL STRETCHED POLY(ETHYLENE TEREPHTHALATE) ELECTRETS |
| |
| ZHANG Xing-yuan,ZHOU Yi-qin.DISCRETE TRAPPING LEVELS OF BIAXIAL STRETCHED POLY(ETHYLENE TEREPHTHALATE) ELECTRETS[J].Acta Polymerica Sinica,1994,0(4):413-417. |
| |
| Authors: | ZHANG Xing-yuan ZHOU Yi-qin |
| |
| Institution: | Department of Materials Science and Engineering; University of Science and Technology of China; Hefei; 230026; Department of Chemistry; Qingdao University; Qindao; 266071 |
| |
| Abstract: | eries of poly(ethylene terephthalate)(PET) films with different degree of planar orientation △(xy)z] were prepared by drawing biakially in different stretching ratio. It was found that the depth of discrete trapping levels increased with the rise of △ (xy)z according to the investigations of thermally stimulated current. Due to the changes of conformation and orientation structot of molecular chains, the kinds 'of structural defects increased which caused the number of discrete trapping levels to increase from 2 of amorphous to 6 of specimen T-1 and the distribution width of death of discrete trapping levels to broaden from 0.05eV of amorphous to 0.2eV of specimen B-1. |
| |
| Keywords: | Poly (ethylene terephthalate) Discrete trapping level Biaxial stretching |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《高分子学报》浏览原始摘要信息 |
| 点击此处可从《高分子学报》下载免费的PDF全文 |
