Modification of polypropylene with composite nucleating agents containing 2, 2-methylene-bis-(4, 6-di-t-butylphenylene) phosphate/attapulgite/silica nano-particles

Min Guo, Jin Qing Li, Zhuang Miao, Yang Zhang, Guo Yuan Pan, Hao Yan, Yun Jun Luo*, Yi Qun Liu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

A series of composite nucleating agents based on inorganic nano-particles (attapulgite and/or silica) and organic phosphate nucleating agent (NA11) were prepared via spray drying technique. The effects of nucleating agents on the mechanical properties and nucleation behavior of PP were studied. Transmission electron microscopy (TEM), scanning electron microscopy (SEM), polarizing optical microscopy (POM) and wide angle X-ray diffraction (WAXD) were employed to characterize the dispersion of composite nucleating agents and their effects on the crystallization behavior of polypropylene. The mechanism of influences of composite nucleating agents on the properties of PP was also discussed. The research results suggested that the mechanical properties of PP were improved substantially with addition of composite nucleating agents into the system. The stiffness of PP was increased significantly with increasing the loading of composite nucleating agents. The ternary composite nucleating agents showed significant effect on improving the stiffness of PP at a loading of 0.2 wt%.which was similar as using pure NA11 at such loading. The observation on microscopic morphology showed that the three components in the ternary composite nucleating agent were inter-partitioned with each other, resulting in the improved dispersion of NA11 and the inorganic nano-particles in PP matrix.

Original languageEnglish
Pages (from-to)1124-1134
Number of pages11
JournalActa Polymerica Sinica
Issue number8
DOIs
Publication statusPublished - 1 Aug 2014

Keywords

  • Attapulgite
  • Composite nucleating agent
  • Crystallization
  • Mechanical property
  • NA11
  • Polypropylene
  • Silica

Fingerprint

Dive into the research topics of 'Modification of polypropylene with composite nucleating agents containing 2, 2-methylene-bis-(4, 6-di-t-butylphenylene) phosphate/attapulgite/silica nano-particles'. Together they form a unique fingerprint.

Cite this