Modification of polypropylene by melt vibration blending with ultra high molecular weight polyethylene
Wang, KJ; Zhou, CX; Zhang, HB; Zhao, DL
AbstractA novel vibration internal mixer was used to prepare polypropylene/ultra high molecular weight polyethylene PP/UHMWPE blends with two additional adjustable processing parameters (vibration frequency and vibration amplitude) as compared with those prepared in the steady mode. Microscopy, mechanical tests, and differential scanning calorimetry showed that vibration influenced the blend morphology and the product properties. The good phase homogeneity of the blends might be due to the variation of shear rate either spatially or temporally in blending. Additionally, the vibration internal mixer could be used to analyze the dependency of viscosity on the shear rate. Vibration enhanced the interpenetration of UHMWPE into PP and vice versa. Subsequently, the formed crystals of two components were connected, and there was epitaxy between PP and UHMWPE crystals. Moreover, the crystalline aggregates, with the amorphous UHMWPE, formed a complex network-like continuous structure, which improved the elongation ratio at the break and the yield strength. The higher the vibration frequency and/or the larger the vibration amplitude at a fixed average rotation speed of the mixer, the more significant these effects were. The larger amount of the connected crystals, especially of P form of PP in the bulk a form PP as well as with the continuous phase structure, led to a higher tensile properties of PP/UHMWPE vibration blended. (C) 2002 Wiley Periodicals, Inc.
KeywordMelt Polyethylene (Pe) Poly(Propelene) Pp Viscosity
Indexed BySCI
WOS IDWOS:000176923600002
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorZhou, CX
Affiliation1.Shanghai Jiao Tong Univ, Dept Polymer Sci & Engn, Shanghai 200240, Peoples R China
2.Natl Key Lab Adv Composites, Beijing 100095, Peoples R China
3.Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Wang, KJ,Zhou, CX,Zhang, HB,et al. Modification of polypropylene by melt vibration blending with ultra high molecular weight polyethylene[J]. ADVANCES IN POLYMER TECHNOLOGY,2002,21(3):164-176.
APA Wang, KJ,Zhou, CX,Zhang, HB,&Zhao, DL.(2002).Modification of polypropylene by melt vibration blending with ultra high molecular weight polyethylene.ADVANCES IN POLYMER TECHNOLOGY,21(3),164-176.
MLA Wang, KJ,et al."Modification of polypropylene by melt vibration blending with ultra high molecular weight polyethylene".ADVANCES IN POLYMER TECHNOLOGY 21.3(2002):164-176.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang, KJ]'s Articles
[Zhou, CX]'s Articles
[Zhang, HB]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, KJ]'s Articles
[Zhou, CX]'s Articles
[Zhang, HB]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, KJ]'s Articles
[Zhou, CX]'s Articles
[Zhang, HB]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.