Nanocomposites of Polypropylene and Halloysite Nanotubes Prepared by a Novel Vane Mixer : Morphology, Thermal, Mechanical and Rheological Properties :Morphology, Thermal, Mechanical and Rheological Properties

Xiaochun Yin; Sai Li; Liang Wang; Guangjian He; Zhitao Yang

doi:10.7317/pk.2017.41.2.163

주제분류

Morphology, Thermal, Mechanical and Rheological Properties

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저널정보

한국고분자학회
폴리머 학술저널
폴리머 제41권 제2호
2017.3 163 - 172 (10page)
DOI : 10.7317/pk.2017.41.2.163

저자정보

Xiaochun Yin (South China University of Technology)
Sai Li (South China University of Technology)
Liang Wang (South China University of Technology)
Guangjian He (South China University of Technology)
Zhitao Yang (South China University of Technology)

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초록·키워드

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Halloysite nanotubes (HNTs) were used to prepare polypropylene (PP) nanocomposites through a novel vane mixer. The effects of melt blend time and halloysite content on properties of composites were investigated. SEM analysis was performed to show that HNTs were well dispersed in PP matrix with the increase of mixing time. DSC showed both the degree of crystallinity and crystallization temperature increased due to the introduction of HNTs into PP, which indicating a potential nucleation effect induced by the nanotubes. TGA illustrated that the presence of HNTs had two opposite effects on the thermal behavior. A surface catalytic action of the halloysite speeded up thermal degradation of PP. However, this effect was reduced with improved HNTs dispersion. Rheological investigations revealed that rheological properties were significantly increased by the addition of low fraction of halloysite to PP. The 2 wt% HNTs nanocomposites reached maximum tensile strength because HNTs dispersed evenly in PP.

#mixing #nanocomposites #halloysite nanotubes #polypropylene