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Preparation of a Novel Inorganic-Organic Nucleating Agent and Its Effect on the Foaming Behavior of Polypropylene.
- Source :
-
Journal of Inorganic & Organometallic Polymers & Materials . Sep2017, Vol. 27 Issue 5, p1538-1545. 8p. - Publication Year :
- 2017
-
Abstract
- In this study, a supramolecular compound (Zn@Q[6]) was synthesized by cucurbit[6]uril (Q[6]) and zinc acetate [Zn(Ac)] through a chemical method. Powder X-ray diffraction and X-ray crystallography analyses were conducted to confirm the crystallographic structure of Zn@Q[6]. Results showed that the four-coordinated Zn(II) centre coordinated with four chloride ions, and each [ZnCl] anion interacted with three Q[6] molecules through hydrogen bonds between Q[6] and the chloridion of [ZnCl]. Subsequently, Zn@Q[6], Zn(Ac) and the mixture of Zn(Ac) and Q[6] were introduced respectively as nucleating agents into polypropylene (PP) microcellular injection using azodicarbonamide (ADC) as a chemical blowing agent. Compared with Zn(Ac) and the mixture of Zn(Ac) and Q[6], improved cell morphology was obtained with addition of Zn@Q[6] obviously at relatively high injection temperatures, except 175 °C, at which no obvious improvement in Zn@Q[6] was observed. The underlying mechanisms were then discussed by thermal and rheological analyses. Zn@Q[6] could be a novel inorganic-organic nucleating agent that can suppress the catalysis activity of Zn(II) for the decomposition of ADC and PP. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 15741443
- Volume :
- 27
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Journal of Inorganic & Organometallic Polymers & Materials
- Publication Type :
- Academic Journal
- Accession number :
- 124655831
- Full Text :
- https://doi.org/10.1007/s10904-017-0614-9