Novel Phosphate Glass/Polyamide 6 Hybrids: Miscibility, Crystallization Kinetics, and Mechanical Properties

Document Type

Article

Publication Date

1-15-2006

Department

Polymers and High Performance Materials

Abstract

The miscibility, crystallization kinetics, and mechanical properties of a novel low T-g phosphate glass (Pglass)/polyamide 6 hybrid material were investigated. Here, we report the first evidence for miscibility of inorganic phosphate glass and organic polymer prepared by blending both components in the liquid phase using conventional polymer processing methods. From classical melting point depression measurements, we obtained a chi interaction parameter (chi) of -0.067 for the Pglass/polyamide 6 hybrid, indicating that the inorganic glass and polyamide 6 are miscible. The crystallization kinetic parameters for the hybrids were determined using the Avrami approach and found to depend on the volume fraction of Pglass present in the system. In addition, we studied both the dynamic and static mechanical behavior of the hybrids. The results showed a single T-g that decreased by up to 10 degrees C with increasing phosphate glass volume percent for the hybrids, giving further evidence for the hybrid component miscibility and plasticizing action of the phosphate glass in the pure polyamide 6, respectively. The tensile (static) mechanical properties of the hybrids were found to be remarkably similar to those obtained from typical polymers plasticized with relatively low molecular weight compounds. (c) 2005 Wiley Periodicals, Inc.

Publication Title

Journal of Polymer Science Part B-Polymer Physics

Volume

44

Issue

2

First Page

441

Last Page

450

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