Deformation temperature and lamellar thickness dependency of Form I to Form III phase transition in syndiotactic polypropylene during tensile stretching
Deformation temperature and lamellar thickness dependency of Form I to Form III phase transition in syndiotactic polypropylene during tensile stretching
复制标题
间规聚丙烯拉伸拉伸过程中 I 型至 III 型相变的变形温度和层状厚度依赖性
DOI：
10.1007/s10118-014-1494-x
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发表时间：
2014-04
影响因子：
4.3
通讯作者：
Men, Yong-feng
中科院分区：
文献类型：
--
作者：
Sun, Ying-ying;Chen, Ran;Li, Xiu-hong;Men, Yong-feng
用同步辐射广角X射线衍射技术研究了不同结晶条件下的间规聚丙烯在不同温度下拉伸变形时I型相向III型相的转变。在所有情况下，观察到这种相变的发生。发现该转变的起始应变是由结晶温度和拉伸温度决定的结晶厚度。拉伸温度对这种相变的影响通过机械性能随温度的变化来理解。此外，相变的晶体厚度依赖性揭示了这种从I型到III型的相变首先发生在其法线沿着拉伸方向的那些薄片中，这些薄片没有经历应力诱导的熔融和再结晶。
Phase transition from form I to form III in syndiotactic polypropylene crystallized at different conditions during tensile deformation at different temperatures was investigated by usingin situsynchrotron wide angle X-ray diffraction technique. In all cases, the occurrence of this phase transition was observed. The onset strain of this transition was found to be crystalline thickness decided by crystallization temperature and drawing temperature dependent. The effect of drawing temperature on this phase transition is understood by the changes in mechanical properties with temperature. Moreover, crystalline thickness dependency of the phase transition reveals that this form I to from III phase transition occurs first in those lamellae with their normal along the stretching direction which have not experienced stress induced melting and recrystallization.
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DOI：
10.1002/polb.1991.090291310
发表时间：
1991-12
期刊：
Journal of Polymer Science Part B
影响因子：
--
作者：
Y. Chatani;H. Maruyama;T. Asanuma;Tetsunosuke Shiomura
通讯作者：
Y. Chatani;H. Maruyama;T. Asanuma;Tetsunosuke Shiomura
影响因子：
5.5
作者：
C. Rosa;and Finizia Auriemma;Valeria Vinti
通讯作者：
C. Rosa;and Finizia Auriemma;Valeria Vinti
影响因子：
3.3
作者：
Heck, B.;Hugel, T.;Strobl, G.
通讯作者：
Strobl, G.
影响因子：
5.5
作者：
T. Nakaoki;Y. Ohira;H. Hayashi;F. Horii
通讯作者：
T. Nakaoki;Y. Ohira;H. Hayashi;F. Horii
影响因子：
8.6
作者：
Men, YF;Rieger, J;Strobl, G
通讯作者：
Strobl, G