Citation: Chun-hai Li, Jian-feng Wang, Ji-wei Guo, Hong Wu, Shao-yun Guo. The Toughening Behavior of the PP/POE Alternating Multilayered Blends under EWF and Impact Tensile Methods[J]. Chinese Journal of Polymer Science, ;2015, 33(10): 1477-1490. doi: 10.1007/s10118-015-1692-1 shu

The Toughening Behavior of the PP/POE Alternating Multilayered Blends under EWF and Impact Tensile Methods

1.
The State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China

Received Date: 17 April 2015
Revised Date: 22 June 2015

Fund Project: This work was financially supported by the National Natural Science Foundation of China (Nos. 51273132, 51227802 and 51121001) and Program for New Century Excellent Talents in Universities (No. NCET-13-0392).

The multilayered polypropylene (PP) and poly(ethylene-co-octene) (POE) sheets were prepared by the microlayered co-extrusion system. The essential work of fracture (EWF) and the impact tensile methods have been successfully used to evaluate the toughening behaviors of the PP/POE multilayered blends under quasi-static and dynamic uniaxial tensile stress, respectively. The experimental results indicate that the multilayered structure plays a key role in the toughening behaviors. On increasing the layer number of the multilayered blends, the specific essential work of fracture, we, increases obviously. As for the wp, there is no obvious variation in the multilayered blends with low POE content (6.79%), however, obvious enhancement is observed with increasing the layer number of the high POE content multilayered blends (16.57%). Compared with the conventional blends, the multilayered blends with 6.79% POE content are effective to increase the value of we. Additionally, the multilayered blends with high layer numbers present absolute advantage in improving the impact tensile values.
- Multilayer,
- EWF,
- Impact tensile,
- PP,
- POE
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