Influence of annealing temperature on the lamellar and connecting bridge structure of stretched polypropylene microporous membrane
文献类型：期刊论文
| 作者 | Cai, Q; Xu, RJ; Wu, SQ; Chen, CB; Mo, HB; Lei, CH; Li, LB; Li, ZH; Li ZH(李志宏)
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| 刊名 | POLYMER INTERNATIONAL
 |
| 出版日期 | 2015 |
| 卷号 | 64期号:3页码:446-452 |
| 关键词 | microporous membrane annealing row-nucleated crystalline structure melting and recrystallization secondary crystallization |
| 英文摘要 | The influence of annealing temperature on the lamellar and connecting bridge structure of stretched polypropylene microporous membrane was investigated using small-angle X-ray scattering, temperature-modulated differential scanning calorimetry and scanning electron microscopy. It is found that with increasing annealing temperature from 105 to 145 degrees C, the main lamella melting peak combines with that from connecting bridges and a uniform pore arrangement is obtained in the microporous membrane. The annealed lamella thickness is increased and lamellar structure is improved, due to the occurrence of melting and recrystallization during annealing. At the same time, more secondary crystals are formed. The melting and recrystallization and secondary crystals contribute to the appearance of an annealing peak in the differential scanning calorimetry curve of annealed film. During the following cold and hot stretching, the secondary crystals disappear and convert to initial connecting bridges. The improved lamellar structure can support the scaffold of pore structure, resulting in a uniform connecting bridge arrangement. But further increasing the temperature to 150 degrees C degrades the initial lamellar structure, leading to a decrease of pore arrangement in the stretched microporous membrane. Annealing leads to the difference of lamellar structure: the initial lamellar structure is improved and some weak secondary crystals are formed in the amorphous region. (c) 2014 Society of Chemical Industry |
| 学科主题 | Polymer Science |
| 类目[WOS] | Polymer Science |
| 收录类别 | SCI ; EI |
| WOS记录号 | WOS:000349401200016 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/228081]  |
| 专题 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Cai, Q,Xu, RJ,Wu, SQ,et al. Influence of annealing temperature on the lamellar and connecting bridge structure of stretched polypropylene microporous membrane[J]. POLYMER INTERNATIONAL,2015,64(3):446-452. |
| APA | Cai, Q.,Xu, RJ.,Wu, SQ.,Chen, CB.,Mo, HB.,...&李志宏.(2015).Influence of annealing temperature on the lamellar and connecting bridge structure of stretched polypropylene microporous membrane.POLYMER INTERNATIONAL,64(3),446-452. |
| MLA | Cai, Q,et al."Influence of annealing temperature on the lamellar and connecting bridge structure of stretched polypropylene microporous membrane".POLYMER INTERNATIONAL 64.3(2015):446-452. |
入库方式： OAI收割
来源：高能物理研究所
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