Largely Improved Mechanical Properties of a Poly(styrene-b-isoprene-b-styrene) Thermoplastic Elastomer Prepared under Dynamic-Packing Injection Molding
Largely Improved Mechanical Properties of a Poly(styrene-b-isoprene-b-styrene) Thermoplastic Elastomer Prepared under Dynamic-Packing Injection Molding
复制标题
动态保压注射成型制备的聚(苯乙烯-b-异戊二烯-b-苯乙烯)热塑性弹性体的机械性能大幅提高
DOI：
10.1021/ie5022514
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发表时间：
2014-09
影响因子：
4.2
通讯作者：
Fu, Qiang
中科院分区：
文献类型：
--
作者：
Su, Bin;Zhong, Licai;Chen, Feng;Fu, Qiang
In this work, a poly(styrene-b-isoprene-b-styrene) thermoplastic elastomer was processed via a novel processing technique, dynamic-packing injection molding (DPIM). The shear cessation time is variable during DPIM, and a conventional injection-molded sample (C-sample) was prepared for comparison. For the dynamic-packing injection-molded sample (D-sample) with a short cessation time, a high Young’s modulus was obtained but with no significant enhancement of the break strength relative to the C-sample. However, a significant improvement of the break strength was achieved for the D-sample with longer cessation time. The mechanical performance of both the C-sample and D-samples was interpreted from the contribution of polyisoprene (PI, as the matrix) and polystyrene (PS, as a dispersed phase) segments. It is proposed that a short cessation time (strong shear) can induce the formation of a stretched PI network, while prolonged cessation time (more relaxation) could result in the segregation of PS and PI microd...
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影响因子：
5.5
作者：
Hongqi Xiang;Yao Lin;T. Russell
通讯作者：
Hongqi Xiang;Yao Lin;T. Russell
影响因子：
5.5
作者：
Mamodia, Mohit;Panday, Ashoutosh;Lesser, Alan J.
通讯作者：
Lesser, Alan J.
影响因子：
3.4
作者：
J. Stasiak;M. Mackley;A. Squires;V. Castelletto;I. Hamley;G. Moggridge
通讯作者：
J. Stasiak;M. Mackley;A. Squires;V. Castelletto;I. Hamley;G. Moggridge
影响因子：
4.6
作者：
M. Karbarz;Z. Stojek;C. S. Patrickios
通讯作者：
M. Karbarz;Z. Stojek;C. S. Patrickios
影响因子：
5.5
作者：
Yoshiaki Takahashi;Yihu Song;N. Nemoto;A. Takano;Y. Akazawa;Y. Matsushita
通讯作者：
Yoshiaki Takahashi;Yihu Song;N. Nemoto;A. Takano;Y. Akazawa;Y. Matsushita